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570~950MPa HighTensile Strength SteelFlux Cored Arc Welding Wires

Covered Arc Welding Electrodes

Submerged Arc Welding Materials

Gas Metal Arc Welding Wires

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n TYPICAL CHEMICAL COMPOSITION OF WELD METAL ( % )

Shield Gas C Si Mn P S Ni

CO2 0.05 0.50 1.47 0.009 0.004 0.52

NITTETSU SF-60 JIS Z 3313 T59J1T1-1CA-N2M1-UH5AWS A5.29 E81T1-GFor 570MPa High Tensile Strength Steel

APPLICATIONS

Welding of 570MPa high tensile strength steel for bridges, machinery andstructures.

CHARACTERISTICS

NITTETSU SF-60 is a rutile type seamless flux cored arc welding wire to be usedwith CO2 shield gas and was designed with emphasis on crack resistance in thewelding of thick plates. The diffusible hydrogen content is as low as that of solidwires and crack resistance is excellent even in the low heat input welding of thickplates.

GUIDELlNES FOR USAGE

1. Water, rust, paint and oil in groove should be removed completely since theymay cause low temperature cracks and blowholes.2. Select optimum welding parameters, heat input for example, in accordance

with plate thickness, welding position, etc. Excessive heat input may causelack of joint strength.

3. Preheating at 50~150C is required depending on plate thickness, restraint,heat input, etc.

4. For others, see GUIDELINES FOR USAGE 1~4 of NITTETSU SF-1.

n TYPICAL MECHANICAL PROPERTIES OF WELD METAL

Yield Point,MPa

Tensile Strength,MPa

Elongation,%

Charpy 2V-notchat 5C,

J

580 615 27 110

n SIZES & RECOMMENDED CURRENT RANGE

Diameter (mm) 1.2

CurrentA

F, H 180~300

H-Fil 180~300

V 180~250

Approval: NK

n TYPICAL WELD JOINT TESTJoint Tensile Test Charpy 2V-notch

at 0C,J

Basemetal

PlateThickness

mm

WeldingMethod

Tensile Strength,

MPa

Location ofFracture

600 Weld metal 110 SM570Q 20Flat, V groove,

8 passes

2

60

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2

61

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C Si Mn Ni Mo

0.07 0.42 1.12 0.73 0.22

NITTETSU L-60 JIS Z 3211 E5916-N1M1UAWS A5.5 E8016-GFor 590MPa High Tensile Strength Steel

APPLICATIONS

Welding of SM570, SPV450 and 590MPa high tensile strength steel (WEL-TEN590) for penstocks, storage tanks, pressure vessels, bridges, offshore structures

and machinery.

CHARACTERISTICS

NITTETSU L-60 is an extra low hydrogen type electrode with high resistance

to moisture absorption. Weldability in all positions, mechanical properties and

X-ray quality are excellent. Weld metal shows satisfactory crack resistance due to

its extremely low diffusible hydrogen content.


1. Electrodes should be redried at 350~400C for 60 minutes before use.

2. Preheating in accordance with the type of steel, plate thickness, restraint, etc.,

i. e. at 50~100C for a 35mm thick plate, is necessary to prevent cracks.

3. Welding with excessively high heat input, i.e. more than 55 kJ/cm for a 35mm

thick plate, should be avoided to assure strength and toughness of weld.


Yield Point,MPa


Elongation,%


J

540 640 29 180


Diameter (mm) 3.2 4.0 5.0 6.0

Length (mm) 350 400 400 450Current

A

F 70~140 120~190 190~250 250~310

V, OH 60~130 90~170 140~190

Approval: NK, ABS, LR, BV, NV

Identication color: End-orange, secondary-yellow

2

62

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C Si Mn Ni Mo

0.07 0.45 1.36 0.70 0.35

NITTETSU L-62CF JIS Z 3211 E6216-N1M1AWS A5.5 E9016-GFor 590MPa High Tensile Strength Steel

APPLICATIONS

Welding of SPV490 and 590MPa high tensile strength steel (WEL-TEN 610)for penstocks, storage tanks, pressure vessels, bridges, offshore structures and

machinery.

CHARACTERISTICS

NITTETSU L-62CF is an extra low hydrogen type electrode for all position

welding of 590MPa high tensile strength steel. It is suitable for site welding of

storage tanks since its coating flux is highly resistant to moisture absorption

even in an atmosphere of high temperature humidity. Extremely low diffusible

hydrogen content in weld metal assures excellent crack resistance.


1. Electrodes should be redried at 350~400C for 60 minutes before use.


i.e. at 50~100C for a 35mm thick plate, is necessary to prevent cracks.




Yield Point,MPa


Elongation,%


J

590 660 30 170


Diameter (mm) 3.2 4.0 5.0 6.0


A

F 100~140 140~190 190~250 250~310

V, OH 90~130 120~170 140~190

Approval: NK

Identication color: End-Golden blown, secondary-Green

2

63

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C Si Mn Ni Mo Ti B

0.07 0.41 1.51 0.67 0.18 0.03 0.002

NITTETSU L-60LT JIS Z 3211 E6216-GAWS A5.5 E9016-GFor 590MPa High Tensile Strength Steel

APPLICATIONS

Welding of 590MPa high tensile strength steel (N-TUF490) for low temperatureservice for structures to be used in frigid area, pressure vessels, storage tanks

and offshore structures.

CHARACTERISTICS

NITTETSU L-60LT is an extra low hydrogen type electrode for all positions with

high resistance to moisture absorption. Weld metal shows excellent toughness at

temperatures around 50C and CTOD (crack tip opening displacement) value.

GUIDELlNES FOR USAGE1. Electrodes should be redried at 350~400C for 60 minutes before use,



3. Select the optimum heat input in accordance with the required specification of

structures and plate thickness to assure desired toughness and CTOD value.

Arc length should be kept as short as possible during welding.


Yield Point,MPa


Elongation,%


J

600 680 28 180


Diameter (mm) 3.2 4.0 5.0 6.0Length (mm) 350 400 400 450

CurrentA

F 100~140 140~190 190~250 250~310V, OH 90~130 120~170 140~190

Identication color: End-silver, secondary-brown

n TYPICAL CTOD VALUES OF WELD JOINT (AS WELDED)

Base Metal(Thickness)

Groove Welding ConditionsCTOD Value, (mm)

10C

A537C1.2Mod (25mm)

YDiameter: 4.0mm

Position:V-upHeat Input: 32kJ/cm

1.17 1.11 1.26

2

64

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C Si Mn Ni Cr Mo

0.05 0.44 1.35 2.52 0.18 0.54

NITTETSU L-80 JIS Z 3211 E7816-N5CM3UAWS A5.5 E11016-GFor 780MPa High Tensile Strength Steel

APPLICATIONS

Welding of 780MPa high tensile strength steel (WEL-TEN 780, 780C, 780P and780E) for penstocks, pressure vessels, bridges, machinery and turbine casings.

CHARACTERISTICS

NITTETSU L-80 is an extra low hydrogen type electrode with high resistance

to moisture absorption. Weldability in all positions, mechanical properties and

X-ray quality are excellent. Extremely low diffusible hydrogen content in weld

metal assures satisfactory crack resistance.

GUIDELlNES FOR USAGE1. Electrodes should be redried at 350~400C for 60 minutes before use.


i.e. at 120~180C for a 35mm thick plate is necessary to prevent cracks.




0.2% Proof Stress,MPa


Elongation,%


J

740 830 24 96


Diameter (mm) 3.2 4.0 5.0 6.0


A

F 100~140 140~190 190~250 250~310

V, OH 90~130 120~170 140~190

Approval: NK, ABS

Identication color: End-orange, secondary-purple

2

65

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NITTETSU L-80SN JIS Z 3211 E7816-N9M3UAWS A5.5 E11016-GFor 780MPa High Tensile Strength Steel

APPLICATIONS

Welding of 780MPa high tensile strength steel (WEL-TEN 780) for offshorestructures, pressure vessels, storage tanks and structures to be used in frigid

area.

CHARACTERISTICS

NITTETSU L-80SN is a ultra low hydrogen type electrode with high resistance

to moisture absorption. Weld metal shows excellent toughness at around

80C. It can be used with confidence for welding extremely thick plates such as

racks of offshore structures since extremely low diffusible hydrogen content in

weld metal assures satisfactory crack resistance.


1. Electrodes should be redried at 350~400C for 60 minutes before use, kept at

100~150C and taken out only as needed.



3. Welding with excessively high heat input, i.e. more than 40 kJ/cm for a 35 mm



C Si Mn Ni MoDiffusible Hydrogen

(Gas Chromatography) /100g

0.05 0.36 1.39 4.64 0.48 1.6




Elongation,%


J

760 860 22 90


Diameter (mm) 3.2 4.0 5.0 6.0


A

F 100~140 140~190 190~250 250~310

V, OH 90~130 120~170 140~190

Approval: ABS, LR, NV

Identication color: End-pink, secondary-green

2

66

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Memo

2

67

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Covered Arc Welding Electrodesfor 590~980MPa High Tensile Strength Steel

BrandName

ldenticationColor

Specication

Dia.mm

Application and Characteristics

EndSecon-dary

JIS AWS

NITTETSU

L-60SOrange

Lightblue

A5.5E8016 -G

3.24.05.06.0

Extra low hydrogen type electrode with highresistance to moisture absorption. It assuressatisfactory toughness at -45C, weldability inall positions and X-ray quality. Crack resistanceis excellent due to the extremely low diffusiblehydrogen content in weld metal.

NITTETSU

L-60WPink Brown

Z 3211E5916-N1M1

A5.5E8016-G

2.63.24.0

Low hydrogen type electrode suitable for uranami(sound penetration bead) welding of 590MPa inall positions. Extremely low diffusible hydrogencontent in weld metal assures excellent crackresistance.

NITTETSU

L-62Pink White

Z 3211E6216-G

A5.5E9016 -G

3.24.05.06.0

Extra low hydrogen type electrode with highresistance to moisture absorption. Weldabilityin all positions, mechanical properties and X-rayquality are excellent. Extremely low diffusiblehydrogen content in weld metal assures satisfac-tory crack resistance.

NITTETSU

L-70Orange Green

Z 3211E6916-N4M3U

A5.5E10016-G

3.24.05.06.0

Extra low hydrogen type electrode with highresistance to moisture absorption and suitable forall position welding of 685MPa. Weldability andX-ray properties are excellent and extremely lowdiffusible hydrogen content of weld metal assures

excellent crack resistance and mechanical proper-ties.

NITTETSU

L-80ELRed Pink

A5.5E11016-G

3.24.05.0

Ultra low hydrogen type electrode with high resis-tance to moisture absorption. It is suitable for weld-ing under severe conditions such as site welding ofpenstocks and tanks since extremely low diffusiblehydrogen content in weld metal assures excellentcrack resistance.

1

68

2

68

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Typical Chemical Compositionof Weld Metal (%)

Typical Mechanical Propertiesof Weld Metal

DiffusibleHydrogen

(GasChromatog-

raphy) /100g

C Si Mn Ni Cr MoYield Point,

MPaTensile Strength,

MPa

Elonga-tion,%

Charpy 2V-notch,J

0.05 0.46 1.12 1.51 0.20 580 650 2945C

120

0.07 0.60 1.02 0.51 0.19 550 630 3110C

92

0.07 0.48 1.39 0.76 0.35 600 670 3120C

170

0.05 0.41 1.16 2.10 0.48 660 750 2620C

170

0.06 0.45 1.44 2.44 0.20 0.42 740 820 2420C

1201.4

1

69

2

69

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Covered Arc Welding Electrodesfor 590~980MPa High Tensile Strength Steel

BrandName

ldenticationColor

Specication

Dia.mm


EndSecon-dary

JIS AWS

NITTETSU

L-100ELOrange Orange

3.24.05.0

Ultra low hydrogen type electrode with highresistance to moisture absorption and suitablefor all position welding of 950MPa high tensilestrength steel. Weldability and X-ray propertiesare excellent and extremely low diffusible hydro-gen content of weld metal assures excellent crackresistance and mechanical properties.1

70

2

70

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Typical Chemical Compositionof Weld Metal (%)


DiffusibleHydrogen

(GasChromatog-

raphy) /100g

C Si Mn Ni Cr MoYield Point,


MPa

Elonga-tion,%

Charpy 2V-notch,J

0.06 0.25 1.67 2.01 0.89 0.75 910 990 2125C

701.7

1

71

2

71

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2

72

NITTETSU YF-15B NITTETSU Y-DMAWS A5.23 F9A6-EA3-A3

F8P2-EA3-A3

For 590MPa High Tensile Strength Steel

n TYPICAL CHEMICAL COMPOSITION OF WELD METAL (%)

C Si Mn P S Mo

Base

Metal

Plate

Thicknessmm

Welding

Method

0.09 0.38 1.33 0.014 0.011 0.49 WT590 25 Multi-layer

APPLICATIONS

Single and multi-layer welding of 590MPa high tensile strength steel for ships,steel frames, bridges and pressure vessels.

CHARACTERISTICS

Weld metal shows excellent impact values and sufficient strength and toughness

as welded and after stress relieving annealing.


An excessive amount of flux in high current welding may cause uneven bead

ripples.


Tensile TestCharpy 2 V-notch,

JBase

Metal

Plate

Thickness

mm

Welding

MethodYield Point,

MPa

TensileStrength,

MPa

Elonga-tion,

%

40C 0C

540 630 25 41 69 WT590 25 Multi-layer

n TYPICAL GROOVE GEOMETRY AND WELDING CONDITIONS

PlateThickness

mm

Wire

Dia.

mm

GrooveGeometry

PassCurrent,

AVoltage,

VSpeed,cm/min

Note

25 4.025

30

13

1~14 550 30 41 Multi-layer

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2

73

NITTETSU NF-820 NITTETSU Y-DMAWS A5.23 F8A0-EA3-A3



C Si Mn P S Mo

Base

Metal

Plate

Thicknessmm

Welding

Method

0.04 0.75 1.77 0.017 0.009 0.47 WT590 25 Multi-layer

APPLICATIONS

Fillet welding of 590MPa high tensile strength steel for steel frames, bridges,pressure vessels and storage tanks.

CHARACTERISTICS

Bead appearance and slag removal are excellent in flat and horizontal fillet

welding with single or double electrodes. NITTETSU NF-820 is a pumiceous flux

and is economical due to its low consumption rate.


Care should be taken to keep the flux from absorbing moisture.



JBase

Metal

Plate

Thickness

mm

Welding

MethodYield Point,

MPa

TensileStrength,

MPa

Elonga-tion,

%

20C 0C

530 610 26 31 48 WT590 25 Multi-layer


PlateThickness

mm

Wire

Dia.

mm

GrooveGeometry

PassCurrent,

AVoltage,

VSpeed,cm/min

Note

25 4.025

30

13

1~14 550 30 41 Multi-layer

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2

74

NITTETSU NB-250H NITTETSU Y-204BAWS A5.23 F9A8-EG-G

F9P8-EG-G

For 590MPa Low Temperature Service


C Si Mn P S Ni Mo

Base

Metal

Plate

Thicknessmm Welding Method

0.10 0.20 1.71 0.001 0.003 0.74 0.29 HT590 50 X groove, multi-layer

APPLICATIONS

Flat butt welding of 590MPa high tensile strength steel for low temperatureservice for offshore structures and structures to be used in frigid areas.

CHARACTERISTICS

NITTETSU NB-250H is a high basic type bonded flux and assures excellent low

temperature toughness (impact and CTOD properties) both as welded and after

stress relieving annealing. Slag is easy to remove even in narrow grooves.


1. Satisfactory weldability and mechanical properties are obtained with heat

input of less than 45KJ/cm.

2. Flux should be used as fast as possible after taking out of the can. Damp flux

should be redried at 250~350C for 60 minutes.



JCTOD

mm

PWHTBase

Metal

Plate

Thickness

mm

Welding

MethodYieldPoint,MPa

TensileStrength,

MPa

Elon-gation,

%

60C 40C 10C

610 710 29 150 170 2.06 aswelded HT590 50X groove,multi-layer

590 680 30 110 140 2.99 605C2.5h HT590 50X groove,multi-layer


PlateThickness

mm

Wire

Dia.

mm

GrooveGeometry

PassCurrent,

AVoltage,

VSpeed,cm/min

Note

50 4.8

50

60

50

25

20

5

1~7

8~15

1 600 28 30Multi-layer

with

gouging

2~7 650 30 28

8 600 28 30

9~15 650 30 28

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2

75

NITTETSU NF-11H NITTETSU Y-EAWS A5.23 F8A4-EG-G



C Si Mn P SBaseMetal

Plate Thicknessmm

0.09 0.29 1.63 0.023 0.005 HW490 25

APPLICATIONS

Horizontal butt welding of 590MPa high tensile strength steel for storage tanks.

CHARACTERISTICS

Bead appearance and slag removal are excellent and pock marks rarely occur.

Weld metal shows satisfactory toughness and X-ray quality.


1. A DC drooping characteristic power source is suitable.

2. All dust and rust should be removed from the groove to prevent blowholes.

3. Optimum current and speed for root pass welding without causing hot cracks

are less than 500A and 40cm/min respectively.


Joint Tensile TestCharpy 2 V-notch,

JBaseMetal

PlateThickness

mmTensile

Strength,

MPa

Location ofFracture

46C 20C 0C

640 Base Metal 60 110 150 HW490 25


PlateThickness

mm

Wire

Dia.

mm

GrooveGeometry

PassCurrent,

AVoltage,

VSpeed,cm/min

Heat

InputNote

3.2 25 4545

25

2

1st

1 460 26 40 17.9No

goug-

ing on

second

side

2 480 28 50 16.1

3 480 27 50 15.5

2nd

1 500 28 35 24.0

2 480 28 60 13.4

3 470 27 60 12.7

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2

76

NITTETSU NB-60L NITTETSU Y-DM3AWS A5.23 F8A8-EG-G

F8P8-EG-G



C Si Mn P S Mo Base

Metal

PlateThickness

mm

Welding

Method

0.08 0.18 1.54 0.010 0.005 0.18 YP420 25 X groove, multi-layer

APPLICATIONS

Multi-layer butt welding of aluminium-killed steel for low temperature service for

offshore structures, installations for low temperatures service and structures to

be used in frigid areas.

CHARACTERISTICS

NITTETSU NB-60L is a Ti-B type bonded flux and assures excellent low

temperature toughness and CTOD both as welded and after stress relief

annealing.


1. Satisfactory weldability and weld metal properties are obtained with heatinput of less than 50kJ/cm.

2. Flux should be used as fast as possible after taking out of the can.

Flux should be redried at 250~350C for 60 minutes.


Tensile Test Charpy 2 V-notch,J

PWHTBaseMetal

PlateThick-nessmm

WeldingMethod

Yield Point,

MPa

TensileStrength,

MPa

Elonga-tion,% 60C

560 640 32 140 As weldedYP420 25

X groove,multi-layer500 610 30 180 600C1.5h


PlateThickness

mm

WireDia.mm

GrooveGeometry Pass

Current,A

Voltage,V

Speed,cm/min Note

75 4.850

70

75

38

32

5

12~13

1415~29

600700600700

27322832

30303030

Multi-layer,with backgouging

25 4.825 20

161~11 700 30 30 Multi-layer

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2

77

NITTETSUNB-250H NITTETSUY-80M AWS A5.23 F11A10-EG-M3For 780MPa High Tensile Strength Steel


C Si Mn Ni Cr MoBaseMetal

Plate Thickness

mmWelding Method

0.07 0.19 1.41 2.18 0.56 0.52 WT780 25 Multi-layer

APPLICATIONS

Welding of 780MPa high tensile strength steel for offshore structures, pressurevessels, penstocks and bridges.

CHARACTERISTICS

NITTETSUNB-250H is a bonded flux designed to minimize the diffusible

hydrogen content in weld metal and, therefore, crack resistance is extremely

high. Impact properties are excellent at low temperature and slag is easy to

remove even in narrow grooves.

GUIDELlNES FOR USAGE1. Flux should be redried at 250~350C for 60~120 minutes before use.

2. When flux is reused, care should be taken that alien things such as rust are

not mixed in with the flux.

3. Preheating at 100~150C is required.


Joint Tensile TestCharpy 2 V-notch,

J BaseMetal

PlateThickness

mm

Heat

Input

kJ/cm

WeldingMethod0.2%

Proof Stress,MPa

TensileStrength,

MPa

Elong-ation,

%60C 40C

730 830 29 86 120 WT780 25 31 Multi-layer


Plate

Thicknessmm

Wire

Dia.mm

GrooveGeometry Pass

Current,A

Voltage,V

Speed,cm/min Note

25 4.025

20

16

1~9 550 31 30 Multi-layer

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78

NITTETSUNB-80 NITTETSUY-80 AWS A5.23 F11A4-EG-GFor 780MPa High Tensile Strength Steel


C Si Mn Ni Cr Mo Base Metal Plate Thicknessmm

Welding Method

0.07 0.19 1.41 2.18 1.05 0.38 WT780 25 Multi-layer

APPLICATIONS

Welding of 780MPa high tensile strength steel for offshore structures, pressurevessels, penstocks and bridges.

Welding of 3Ni-1.75%Cr-0.5%Mo steel such as ASTM A508 Gr.4N and A543 type

B Cl.1 steel.

CHARACTERISTICS

NITTETSUNB-80 is a bonded flux designed to minimize the diffusible hydrogen

content in weld metal and, therefore, crack resistance is extremely high. Impact

properties are excellent at low temperature and slag is easy to remove even in

narrow grooves.


1. Flux should be redried at 300~350C for 60~120 minutes before use.

2. When flux is reused, care should be taken that alien things such as rust are

not mixed in with the flux.

3. Preheating at 100~150C is required.


Joint Tensile Test Charpy 2 V-notch,JBase

Metal

PlateThick-ness

mm

Heat

Input

kJ/cm

Welding

MethodPWHT0.2% Proof

Stress,MPa

Tensile Strength,

MPa

Elongation,

%40C 20C 29C 0C

720 870 21 87 108 HT780 25 31Multi-layer

As-welded

690 800 24 103 145 A508Gr.411 25 28Multi-layer

585C

20h


Plate

Thicknessmm

Wire

Dia.mm

GrooveGeometry Pass

Current,A

Voltage,V

Speed,cm/min Note

25 4.025

20

16

1~9 550 31 30 Multi-layer

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Memo

2

79

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1

80

2

80

Submerged Arc Welding Materialsfor 590~780MPa High Tensile Strength Steel

BrandName

Specication


Typical Chemicalof Weld

JIS AWS C Si Mn P S

NITTETSU

NF-100 NITTETSU

Y-CMS

A5.23

F8A6-EG-A4

F8P6-EG-A4

Welding of 570MPa high strengthsteel for structures, bridges, pres-sure vessels and penstocks, etc.

0.09 0.37 1.38 0.015 0.010

NITTETSU

NF-100 NITTETSU

Y-DMS

A5.23

F9A2-EA3-A3F8P2-EA3-A3

Welding of 610MPa high strengthsteel for structures, bridges, pres-sure vessels and penstocks, etc.

0.09 0.37 1.61 0.018 0.010

NITTETSU

NF-250 NITTETSU

Y-204B

A5.23

F9A6-EG-GF8P6-EG-G

Narrow gap welding of 590MPalow temperature service steelfor nuclear reactor pressure ves-sels and structures to be used infrigid areas. Slag is extremelyeasy to remove and weld metalshows excellent impact value.

0.07 0.14 1.60 0.010 0.004

NITTETSU

NF-15B NITTETSU

Y-70M

A5.23

F10A4-EG-G

Butt and llet welding of 690MPa

high tensile strength steel.NITTETSU Y-70M is a Mn-Ni-Cr-Mo type wire and NITTETSU

YF-15B has been designed tominimized diffusible hydrogencontent in weld metal and, there-fore, crack resistance is excellent.

0.07 0.48 1.68 0.018 0.008

NITTETSU

NB-250H

NITTETSUY-70M

A5.23

F10A8-EG-GF10P8-EG-G

Butt welding of 690MPa high ten-sile strength steel. NITTETSUNB-250H is a high basic type uxand weld metal shows excellent

low temperature toughness bothas welded and after stress reliev-ing annealing. Slag is easy toremove even in narrow gap weld-ing.

0.10 0.16 1.66 0.012 0.006

NITTETSU

YF-15B NITTETSU

Y-80M

A5.23

F11A2-EGM3

Fillet welding of 780MPa hightensile strength steel for bridges.Diffusible hydrogen content isextremely low and, therefore,weld metal shows excellent crackresistance.

0.06 0.36 1.30 0.015 0.007

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1

81

2

81

CompositionMetal (%)

Typical MechanicalProperties of Weld Metal

Remarks

Ni Cr MoYield Point,


MPa

Elon-

gation,%

Charpy 2 V-notch,

PWHTBaseMetal

PlateThick-nessmm

WeldingMethodC J

0.45

550 630 27 0 110

SM570 25 Multi-layer

540 620 30 0 93620C

1h

0.42

580 660 25 0 89

HT610 30 Multi-layer

560 630 27 0 83620C

3h

0.94 0.38

660 28 50 91As

welded

SPV490 40Single, one

pass one layer

multi-layer

640 29 50 64625C

1h

0.87 0.40 0.38 640 740 25

45 52

WT690 53X groove,multi-layer

30 56

15 76

0 82

0.90 0.50 0.37 690 760 26

75 80

WT690 25 Multi-layer

60 120

2.10 0.54 0.52 710 799 23

0 79

WT780 22 Multi-layer

20 72

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Shield Gas C Si Mn P S Mo

CO2 0.07 0.38 1.38 0.005 0.012 0.35

NITTETSU YM-60C JIS Z 3312 G59JA1UC3M1TAWS A5.28 ER 80S-GFor 590MPa High Tensile Strength Steel

APPLICATIONS

Welding of 590MPa high tensile strength steel for steel frames, bridges, pressurevessels and penstocks.

CHARACTERISTICS

NITTETSU YM-60C is a gas metal arc welding wire to be used with CO 2 shield

gas. Arc is stable, spatters are few and weldability is excellent even in high

welding current range. High efficiency is obtained in automatic and semi-

automatic welding due to high deposition rate and deep penetration. It is also

applicable to OSCON process, our manpower saving automatic welding process.


1. Preheating at 50~150C is required in accordance with plate thickness,

restraint, heat input, etc.


Yield Point,MPa


Elongation,%

Charpy 2V-notch,J

20C 5C

590 660 30 110 120

n TYPICAL WELD JOINT TEST

Joint Tensile TestCharpy 2V-notch,

J

Base metal

Plate

Thickness

mm

Welding

Method

Welding Conditions

Tensile

Strength,

MPa

Location

of

Fracture

20C 5CCurrent

A

Voltage

V

Speed

cm/min

640 Base metal 60 80590MPa

high tensilestrength steel

25X groove,3 passes

both sides320 35 30

n

SIZES & RECOMMENDED CURRENT RANGEDiameter (mm) 1.2 1.6

Current (A) 80~350 250~550

Approval: NK, NV

2

82

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Shield Gas C Si Mn P S MoAr+20%CO2 0.06 0.35 1.45 0.008 0.003 0.38

NITTETSU YM-60A JIS Z 3312 G59JA1UM3M1TAWS A5.28 ER80S-GFor 590MPa High Tensile Strength Steel

APPLICATIONS

Welding of 590MPa high tensile strength steel for steel frames, bridges, pressurevessels, storage tanks and penstocks.

CHARACTERISTICS

NITTETSU YM-60A is a gas metal arc welding wire to be used with

Ar+5~25%CO2 or Ar+2~5%O2 shield gas. It is suitable for spray arc welding

with high current and vertical butt welding with low current and high heat

input. Weld metal shows excellent mechanical properties and crack resistance.

Weldability is satisfactory and bead appearance is beautiful when it is used for

OSCON Process, our manpower saving automatic welding process.





Yield Point,MPa


Elongation,%

Charpy 2V-notch,J

30C 10C

580 650 30 180 200



J

weld-

ing

Position

Base metal

Plate

Thick-

ness

mm

Welding Conditions

PWHTYield

Point,

MPa

Location of

Fracture

Shield

Gas

Current

A

Voltage

V

Speed

cm/min30C 10C

660 Base Metal 150 190 F 590MPahigh tensile

strength steel25

Ar+20%CO2

330 27 25 Aswelded670 Base Metal 140 180 V 200 20 4.5

n

SIZES & RECOMMENDED CURRENT RANGEDiameter (mm) 1.2 1.6

Current (A) 80~350 200~450

Approval: NK, ABS, NV

2

83

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Shield Gas C Si Mn P S Ni Mo

CO2 0.07 0.60 1.34 0.005 0.009 2.28 0.42

NITTETSU YM-80C JIS Z 3312 G78A2UCN5M3TAWS A5.28 ER110S-GFor 780MPa High Tensile Strength Steel

APPLICATIONS

Welding of 780MPa high tensile strength steel for steel frames, bridges, pressurevessels and penstocks.

CHARACTERISTICS

NITTETSU YM-80C is a gas metal arc welding wire to be used with CO 2 shield

gas. Arc is stable, spatters are few and weldability is satisfactory even in high

welding current range. Bead appearance is beautiful and weld metal shows

excellent toughness.

GUIDELlNES FOR USAGE1. Preheating at 120~180C is required in accordance with plate thickness,

restraint. heat input etc.




Elongation,%

Charpy 2V-notch,J

20C 0C

720 850 23 66 84


Joint Tensile Test Charpy 2V-notch,J

Base metal

Plate

Thick-

ness

mm

Welding Conditions

TensileStrength,

MPa

Locationof

Fracture15C 0C

WeldingMethod Current

A

Voltage

V

Speed

cm/minPWHT

830 Base metal 69 78 WEL-TEN

80C48

X groove,

18 passes300 29 30

As welded

840 Base metal 57 62 625C1h

n

SIZES & RECOMMENDED CURRENT RANGEDiameter (mm) 0.9 1.0 1.2 1.6

Current (A) 50~200 70~250 80~350 250~550

Approval: NK, ABS, NV, BV

2

84

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Shield Gas C Si Mn Ni Cr Mo

Ar+20%CO2 0.08 0.31 1.30 2.60 0.50 0.57

NITTETSU YM-80AJIS Z 3312 G78A4UMN5C1M3T

AWS A5.28 ER110S-G


APPLICATIONS

Welding of 780MPa high tensile strength steel for steel frames, bridges, pressurevessels, penstocks and offshore structures.

CHARACTERISTICS

NITTETSU YM-80A is a gas metal arc welding wire to be used with argon rich

shield gas such as Ar+5~25%CO2 or Ar+2~5%O2. Arc is stable, spatters are few

and weldability is excellent in a wide current range. Bead appearance is beautiful

and weld metal shows excellent toughness at low temperatures.

GUIDELlNES FOR USAGE1. All dust and rust in groove should be completely removed.






Elongation,%

Charpy 2V-notch,J

60C 40C

760 870 22 61 72



J Base metal

Plate

Thickness

mm

Welding Conditions

TensileStrength,

MPa

Locationof

Fracture

Shield

Gas

Current

A

Voltage

V

Speed

cm/min40C

830 Base Metal 75 WEL-TEN 80 25 Ar+20%CO2 280 29 25

n

SIZES & RECOMMENDED CURRENT RANGEDiameter (mm) 1.0 1.2 1.6

Current (A) 70~250 80~350 200~450

Approval: NK, ABS, NV

2

85

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Gas Metal Arc Welding Wiresfor 590~980MPa High Tensile Strength Steel

BrandName

ShieldGas

Specication

Dia.mm


JIS AWS

NITTETSUYM-60CS

CO2Z 3312G59JA1UC3M1T

A5.28ER90S-G

1.21.41.6

Welding of 590MPa high strength steel forsteel frames, bridges, pressure vessels andpenstocks.

NITTETSUYM-60AS

Ar +20%CO2

Z 3312G59JA1UM3M1T

A5.28ER90S-G

1.21.41.6

Welding of 590MPa high strength steel forsteel frames, bridges, pressure vessels andpenstocks.

NITTETSUYM-70C

CO2Z 3312G69A2UCN4M3T

A5.28

ER100S-G

0.91.01.21.6

Welding of 690MPa high tensile strengthsteel. Good weldability with stable arc andfew spatters and excellent toughness are as-sured even in high current welding.

NITTETSUYM-70CS

CO2Z 3312G69A2UCN1M2T

A5.28

ER100S-G

1.21.41.6

Welding of 690MPa high strength steel forcivil construction equipment, steel frames,bridge and pressure vessels.

NITTETSUYM-70A*

Ar+

5~20%

CO2andAr+

2~5%O2

Z 3312G69A3UMN4M3T

A5.28ER100S-G

1.01.21.6

Welding of 690MPa high tensile strengthsteel. Arc is stable, spatters are extremely

few, and beautiful bead appearance andexcellent toughness are obtained in a widecurrent range with Ar+20%CO2 or Ar+O2mixture gas.

NITTETSUYM-80AS

Ar +20%CO2

Z 3312G78JA2UMN6CM3T

A5.28

ER110S-G

1.21.41.6

Welding of 780MPa high strength steel forsteel frames, bridges, pressure vessels, pen-stocks and offshore structures.

Note)* Mechanical properties are with Ar+CO2

mixture gas.

1

86

2

86

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Typical Chemical Composition of Weld Metal(%)

Typical Mechanical Properties of WeldMetal

PWHTType of

Cur-rent

C Si Mn P S Ni Cr Mo0.2% Proof

Stress,MPa

TensileStrength,

MPa

Elon-gation,

%

Charpy 2V-notch

at 0C,

J

0.09 0.66 1.42 0.010 0.007 0.32

560 680 28 108As

weldedDC (+)

550 630 29 81620C1h

0.05 0.40 1.50 0.009 0.008 0.30

560 630 30 167As

weldedDC (+)

530 610 31 159580C1h

0.06 0.49 1.02 0.009 0.006 1.23 0.30 610 720 25

20C98

DC(+)

0C130

0.08 0.56 1.58 0.012 0.010 0.52 0.34 650 740 245C

89 DC (+)

0.07 0.33 1.11 0.010 0.005 1.77 0.44 655 740 25

40C86

DC(+)

20C130

0.05 0.44 1.02 0.010 0.009 2.60 0.20 0.48

740 820 24 127As

weldedDC (+)

720 800 25 91580C1h

1

87

2

87

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Gas Tungsten Arc Welding Wires590~780MPa High Tensile Strength Steel

BrandName

ShieldGas

SpecicationDia.mm

(Spool)Application and Characteristics

JIS AWS

NITTETSUYT-60

Ar A5.28

ER80S-G

1.21.62.02.4

1000(12.5, 20 kg)

Welding of 590MPa high tensile strength steelplates. It is also suitable for uranami (soundpenetration bead) welding without backshielding.

NITTETSUYT-70S

Ar A5.28

ER100S-G

1.21.62.02.4

1000

Welding of 690MPa high tensile strengthsteel.

NITTETSUYT-80S

Ar A5.28

ER110S-G

1.21.62.02.4

1000

Welding of 780MPa high tensile strengthsteel.

1

88

2

88

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Typical Chemical Compositionof Weld Metal(%)


PWHT

C Si Mn Ni Mo CrYield Point,

MPa


Elonga-tion,

%

Charpy 2V-notch,

J

0.09 0.03 1.79 0.50

655 700 2740C

120As welded

580 630 3140C

300625C1h

0.09 0.41 1.60 0.38 700 780 2720C

98As welded

0.06 0.43 1.10 2.80 0.45 0.21 760 840 2820C

98As welded

1

89

2

89

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Memo

2

10ns02

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