Flexible and reliable solutions using tungsten carbide | tungsten-copper | heavy alloy | tungsten | molybdenum Off-the-shelf products NEGELE Hartmetall-Technik GmbH ı Löwenstr. 94 ı D-70597 Stuttgart ı www.negele-hartmetall.de As at august 1, 2015. Subject to change without prior notice.
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Flexible and reliable solutions using · TuNgSTeN CArbIde TuNgSTeN CArbIde is made in a powder metallurgy process. The main components are carbides (usually tungsten carbide) and
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Flexible and reliable solutions usingtungsten carbide | tungsten-copper | heavy alloy | tungsten | molybdenum
As at august 1, 2015. Subject to change without prior notice.
In accordance with DIN ISO, we sinter blanks in the form of round bars, rectangular bars, bushings, rings, plates and formed parts made of the high performance materials tungsten carbide, tungsten–copper, heavy alloy, tungstenand molybdenum.
NHT also offers contract manufacturing of customized parts and produces semi-finished products or complete components accor-ding to customer specifications in any quantity from one-off production to large series – quickly, reliably and in top quality.
Quality ı Service ı Customer ProximityWe settle for no less than the best quality. We have never been satisfied with conventional solutions. Our heavy investment in development has brought forth a whole range of leading products. We dedicated our efforts to fine-grain tungsten carbide techno-logy at an early stage in our history. Today, we have extensive experience in the relevant process engineering, manufacturing and quality assurance. The other powder metallurgy products from our range also represent top achievements.
Our quality assurance is certified according to DIN-ISO 9001 and guarantees constantly high product quality. Whether delivered directly to you or processed at NHT, all our blanks are subjected to careful material inspection. Each batch is analysed in the laboratory. This also ensures extremely high and constant quality when re-ordering.
Our modern and flexible production reliably ensures the high quality standards set by our development department as well as extremely short delivery times.
Our NHT service:• Extremely short delivery times: same-day delivery for orders from our extensive range of off-the-shelf products• Highest standards of quality and reliability that also extend to the manufacture of individual formed parts and customized forms
We guarantee constantly high quality and we will do everything in our power to be the right partner for your needs when it comes to top-class metallurgical products.
New in our range - GM25EDM and GM30EDMThe newly developed corrosion-protected EDM grades GM25EDM and GM30EDM - a consistent development of our proven classic GN30S. A special binder composition allows a longer stay in the dielectric medium. These grades have an extremely low susceptibility to corrosion. Both GRADES are characterised by a high-quality finish with less recutting. The result is a high level of precision in the form and a better tool life.
As at august 1, 2015. Subject to change without prior notice.
TuNgSTeN CArbIde
TuNgSTeN CArbIde is made in a powder metallurgy process. The main components are carbides (usually tungsten carbide) and binders (usually cobalt). Nickel is also used but more rarely. Being so extraordinarily versatile has made tungs-ten carbide a firm favourite in machining - wear and corrosion protection - forming - stone working and mining.Close monitoring of the alloys together with constant development of new production and testing methods ensure the outstanding chemical and mechanical properties of our tungsten carbide.
The most important properties of tungsten carbide• Extreme wear-resistance• Extremely hard• High transverse rupture strength• High elastic modulus and stiffness• High compressive strength, good toughness
(depending on type)• Good corrosion-resistance• Excellent thermal conductivity• Better thermal stability than steel materials
Available formsProfile bars, tubes, plates for wire erosion, formed parts according to DIN-ISO, formed parts according to specifications/drawings with short delivery time
Multi-purpose grades of tungsten carbidesWe supply all types of tungsten carbides perfectly adapted to your needs - from proven standard grades through to universally deployable multi-purpose grades and special grades. The various properties of the individual grades are achieved by varying the proportions of the components in the mixture, by selecting and combining the tungsten carbide grain form and grain size and by means of perfectly coordinated process control. NHT has grades in the ideal quality for every requirement.
Our materials offer the following benefits compared to standard materials:• Very good toughness characteristics thanks to high transverse rupture strength – up to 4000 N/mm2
• Top levels of wear resistance thanks to a high hardness value – up to HV1830• High edge stability thanks to very fine, dense and homogenous microstructure, therefore particularly well suited for punching
and cutting tools
NeW in our range - GM25EDM and GM30EDM
The newly developed corrosion-protected EDM GRADES GM25EDM and GM30EDM - a consistent development of our proven classic GN30S - offer a high-quality finish with less recutting, a high level of precision in the form and a better tool life.
Tungsten carbides are an ideal construction material for• Inserts, cutting bushings and punches for punching tools• Moulds, punches and dies for pressing metal powder and
ceramic masses• Bearing rings, valve parts, blasting nozzles for powder and
liquids• All kinds of machine tools• Blades for paper, plastics, sheet metal and printed circuit
boards• Wear parts designed to meet the most exacting requirements in
machinery and tool construction (fastening by means of solde-ring, gluing, screwing, clamping, shrinking and binding)
2 or 4 sides grinded can be supplied at short notice
• Other dimensions and grades can be supplied at short notice, including products with entry holes and screw holes or soldered steel bolts for thread• Delivery times for surface-grinded plates from stock• Sintered version with grinding allowance on all dimensions• Surface-grinded plates have min. + 0.2mm allowance• Minimum order value €100.00, Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
Thickness x Width in mmThickness x Width in mmThickness x Width in mm
Length 75mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3 2,2 x 20,3 2,2 x 25,3
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3
8,3 x 14,3 8,3 x 16,3 8,3 x 18,3 8,3 x 20,3 8,3 x 25,3 8,3 x 30,3 9,3 x 10,3 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3 10,3 x 25,3 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3 12,3 x 25,3 12,3 x 30,3 13,3 x 13,3 14,3 x 14,3
14,5 x 20,5 14,3 x 26,3 15,3 x 15,3 15,3 x 20,3 15,3 x 30,3 16,3 x 16,3
Length 100mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3 2,2 x 20,3 2,2 x 25,3
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3
8,3 x 14,3 8,3 x 16,3 8,3 x 18,3 8,3 x 20,3 8,3 x 25,3 8,3 x 30,3 9,3 x 10,3 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3 10,3 x 25,3 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3 12,3 x 25,3 12,3 x 30,3 13,3 x 13,3 14,3 x 14,3
14,5 x 20,5 14,3 x 26,3 15,3 x 15,3 15,3 x 20,3 15,3 x 30,3 16,3 x 16,3
Length 330mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3* 2,2 x 20,3 2,2 x 25,3*
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3* 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3* 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3* 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3* 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3* 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3* 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3* 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3*
8,3 x 14,3* 8,3 x 16,3* 8,3 x 18,3* 8,3 x 20,3* 8,3 x 25,3 8,3 x 30,3* 9,3 x 10,3* 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3* 10,3 x 25,3* 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3* 12,3 x 25,3* 12,3 x 30,3* 13,3 x 13,3* 14,3 x 14,3*
14,5 x 20,5* 14,3 x 26,3* 15,3 x 15,3* 15,3 x 20,3 15,3 x 30,3* 16,3 x 16,3*
• Other dimensions, types and blanks can be supplied at short notice, maximum production length up to 500 mm• Minimum order value €100.00, Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
Thickness x Width in mmThickness x Width in mmThickness x Width in mm
Length 75mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3 2,2 x 20,3 2,2 x 25,3
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3
8,3 x 14,3 8,3 x 16,3 8,3 x 18,3 8,3 x 20,3 8,3 x 25,3 8,3 x 30,3 9,3 x 10,3 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3 10,3 x 25,3 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3 12,3 x 25,3 12,3 x 30,3 13,3 x 13,3 14,3 x 14,3
14,5 x 20,5 14,3 x 26,3 15,3 x 15,3 15,3 x 20,3 15,3 x 30,3 16,3 x 16,3
Length 100mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3 2,2 x 20,3 2,2 x 25,3
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3
8,3 x 14,3 8,3 x 16,3 8,3 x 18,3 8,3 x 20,3 8,3 x 25,3 8,3 x 30,3 9,3 x 10,3 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3 10,3 x 25,3 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3 12,3 x 25,3 12,3 x 30,3 13,3 x 13,3 14,3 x 14,3
14,5 x 20,5 14,3 x 26,3 15,3 x 15,3 15,3 x 20,3 15,3 x 30,3 16,3 x 16,3
Length 330mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3* 2,2 x 20,3 2,2 x 25,3*
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3* 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3* 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3* 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3* 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3* 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3* 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3* 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3*
8,3 x 14,3* 8,3 x 16,3* 8,3 x 18,3* 8,3 x 20,3* 8,3 x 25,3 8,3 x 30,3* 9,3 x 10,3* 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3* 10,3 x 25,3* 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3* 12,3 x 25,3* 12,3 x 30,3* 13,3 x 13,3* 14,3 x 14,3*
14,5 x 20,5* 14,3 x 26,3* 15,3 x 15,3* 15,3 x 20,3 15,3 x 30,3* 16,3 x 16,3*
• Other dimensions, types and blanks can be supplied at short notice• Maximum production length up to 500 mm• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
Thickness x Width in mmThickness x Width in mmThickness x Width in mm
Length 75mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3 2,2 x 20,3 2,2 x 25,3
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3
8,3 x 14,3 8,3 x 16,3 8,3 x 18,3 8,3 x 20,3 8,3 x 25,3 8,3 x 30,3 9,3 x 10,3 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3 10,3 x 25,3 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3 12,3 x 25,3 12,3 x 30,3 13,3 x 13,3 14,3 x 14,3
14,5 x 20,5 14,3 x 26,3 15,3 x 15,3 15,3 x 20,3 15,3 x 30,3 16,3 x 16,3
Length 100mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3 2,2 x 20,3 2,2 x 25,3
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3
8,3 x 14,3 8,3 x 16,3 8,3 x 18,3 8,3 x 20,3 8,3 x 25,3 8,3 x 30,3 9,3 x 10,3 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3 10,3 x 25,3 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3 12,3 x 25,3 12,3 x 30,3 13,3 x 13,3 14,3 x 14,3
14,5 x 20,5 14,3 x 26,3 15,3 x 15,3 15,3 x 20,3 15,3 x 30,3 16,3 x 16,3
Length 330mm 1,2 x 2,2 1,2 x 4,2 1,2 x 6,3 1,7 x 6,3 1,7 x 8,3 1,7 x 16,3 2,2 x 2,2 2,2 x 3,2 2,2 x 4,3
2,2 x 5,3 2,2 x 6,3 2,2 x 8,3 2,2 x 10,3 2,2 x 12,3 2,2 x 14,3 2,2 x 16,3* 2,2 x 20,3 2,2 x 25,3*
3,2 x 3,2 3,2 x 4,3 3,2 x 5,3 3,2 x 6,3 3,2 x 7,3 3,2 x 8,3 3,2 x 10,3 3,2 x 12,3 3,2 x 14,3
3,2 x 16,3* 3,2 x 18,3 3,2 x 20,3 3,2 x 25,3* 3,2 x 30,3 4,3 x 4,3 4,3 x 5,3* 4,3 x 6,3 4,3 x 8,3
4,3 x 10,3 4,3 x 12,3 4,3 x 14,3 4,3 x 16,3 4,3 x 20,3 4,3 x 30,3 4,3 x 40,3 5,3 x 5,3 5,3 x 8,3
5,3 x 10,3 5,3 x 12,3 5,3 x 14,3 5,3 x 16,3 5,3 x 18,3* 5,3 x 20,3 5,3 x 25,3 5,3 x 30,3 6,3 x 6,3
6,3 x 8,3 6,3 x 10,3 6,3 x 12,3 6,3 x 14,3* 6,3 x 16,3 6,3 x 18,3 6,3 x 20,3* 6,3 x 25,3 6,3 x 30,3
7,3 x 7,3 7,3 x 10,3 7,3 x 15,3 7,3 x 18,3 7,3 x 20,3 7,3 x 25,3* 8,3 x 8,3 8,3 x 10,3 8,3 x 12,3*
8,3 x 14,3* 8,3 x 16,3* 8,3 x 18,3* 8,3 x 20,3* 8,3 x 25,3 8,3 x 30,3* 9,3 x 10,3* 10,3 x 10,3 10,3 x 12,3
10,3 x 20,3* 10,3 x 25,3* 10,3 x 30,3 12,3 x 12,3 12,3 x 20,3* 12,3 x 25,3* 12,3 x 30,3* 13,3 x 13,3* 14,3 x 14,3*
14,5 x 20,5* 14,3 x 26,3* 15,3 x 15,3* 15,3 x 20,3 15,3 x 30,3* 16,3 x 16,3*
• Other dimensions, types and blanks can be supplied at short notice• * The length here is 320mm due to production reasons• Maximum production length up to 500 mm• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
NHT-Grades ISO-Code Hardness Hardness Binder Co Transverse rupture strength
HV30 HRA % MPa
GM20F K20/30 1550 91,9 10,0 > 3200
GM25F K30/40 1380 90,5 13,0 > 4000
• Other dimensions, types and blanks can be supplied at short notice - Maximum production length up to 500 mm• Minimum order value €100.00 - Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
D outside n6 in mm 4,0 n6 5,0 n6 6,0 n6 7,0 n6 8,0 n6 9,0 n6 10,0 n6 12,0 n6 15,0 n6 18,0 n6
d inside in mm 0,6 0,6 0,8 0,8 0,8 2,5 1,5 3,0 4,0 6,0
NE
W !
NE
W !
• * d/D - true-running accuracy not guaranteed due to centerless grinding• ø Grinded and polished, tolerance h6 (0/-), tolerance n6 (+/+)• Other dimensions, types and blanks can be supplied at short notice• Maximum production length up to 500 mm• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
D outside n6 in mm 4,0 n6 5,0 n6 6,0 n6 7,0 n6 8,0 n6 9,0 n6 10,0 n6 12,0 n6 15,0 n6 18,0 n6
d inside in mm 0,6 0,6 0,8 0,8 0,8 2,5 1,5 3,0 4,0 6,0
NE
W !
NE
W !
• * d/D - true-running accuracy not guaranteed due to centerless grinding• ø Grinded and polished, tolerance h6 (0/-), tolerance n6 (+/+)• Other dimensions, types and blanks can be supplied at short notice• Maximum production length up to 500 mm• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
As at august 1, 2015. Subject to change without prior notice.
TUNGSTEN CARBIDE - Cone apexes DIN 8012
• Other dimensions and types can be supplied at short notice• All sizes would be delivered with grinding allowance• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
Off-the-shelf range
HARTMETALL - Kegelspitzen DIN 8012
Ø x Length in mm 5 x 12 6 x 12 7 x 14 8 x 16 10 x 20 11 x 20 12 x 22 14 x 22 15 x 22
• We deliver ceramic, stellite and stainless steel balls, tungsten carbide nickel-bound, silicon nitride SI3N4• Please inquire separately for prices for quantities from 50 units and ø over 22mm• Special tolerances and intermediate dimensions possible (from ø 0.4 mm to ø 100 mm)• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
ø in mm 1,0 1,5 2,0 2,5 3,0 3,2 3,5 4,0 4,5 5,0
5,5 6,0 6,5 7,0 8,0 10,0 11,0 12,0 15,0 22,0
HARTMETALL - Präzisionskugeln
NHT-Grades Hardness Hardness Binder Co Compressive strength
As at august 1, 2015. Subject to change without prior notice.
Power feed contacts for Charmilles erosion machines
Off-the-shelf range
• Please inquire separately for prices • Dimensions in mm• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
An optimised design of the power feed contact together with a special coating ensure that all four contact surfaces remain usable for a much longer time and are not attacked by the demineralized water. The corrosion-protected power feed contacts are available in different versions. Please call us or send us an e-mail to inquire about the power feed contact you require.
=NiKo =NON COrrOdINg
12 mm
GW40 power feed contact Tungsten carbide GW40Niko OEM-Nr. 432.997
GW30 power feed contact Tungsten GW30Niko OEM-Nr. 342.166
GW30S power feed contact Tungsten-Special GW30SNiko OEM-Nr. 342.166
GW10 power feed contact Tungsten carbide GW10Niko OEM-Nr. 630.654
As at august 1, 2015. Subject to change without prior notice.
TuNgSTeN-COPPer
At NHT, the sinter material TuNgSTeN-COPPer goes under the brand name of EROMET and is mainly produced with a tungsten/copper content of 80/20, 75/25 and 90/10 (% by weight). Tungsten-copper [EROMET] is characterised by a low burn-off rate, excellent electric and thermal conductivity and good machinability.
EROMET is used for electrodes for electrical discharge machining (EDM) and in electrical switchgear in the form of switching contacts for high and medium voltage. Its outstanding properties are its high temperature stability resulting from the tungsten matrix and its excellent electrical and thermal conductivity resulting from the infiltrated copper.
The most important properties of tungsten–copper• excellent arc resistance• Good electrical conductivity• High thermal conductivity• Low tendency to form alloys• Good machinability
Available forms• Bars• Plates• Blocks• Tubes• Formed parts based on drawings
Applications• Electrodes for electrical discharge machining• Electrodes for electrochemical machining• Electrodes for electric resistance welding• Contacts for electrical switchgear• Thermodes
As at august 1, 2015. Subject to change without prior notice.
Off-the-shelf range
TUNGSTEN-COPPER- Plates, EROMET 80/20 and EROMET 75/25
• EROMET 90/10 upon inquiry• Tolerance DIN ISO 2768m ( + range)• Other dimensions and types as well as cuttings can be supplied at short notice• Tool, welding and rotating electrodes as well as circular blanks upon inquiry• Minimum order value €100.00, Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
TUNGSTEN-COPPER- cylindrical bars, EROMET 80/20 and EROMET 75/25
Thickness x Width in mmThickness x Width in mmThickness x Width in mm
As at august 1, 2015. Subject to change without prior notice.
Off-the-shelf range
TUNGSTEN-COPPER- rectangular bars, square bars, EROMET 80/20 and EROMET 75/25
• Tolerance DIN ISO 2768m ( + range)• Other dimensions and types as well as cuttings can be supplied at short notice• Tool, welding and rotating electrodes as well as circular blanks upon inquiry• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
WOLFRAM-KUPFER - Rechteckstäbe
Thickness x Width in mmThickness x Width in mmThickness x Width in mm
As at august 1, 2015. Subject to change without prior notice.
TuNgSTeNTuNgSTeN Special (WS) - non radioactive!The NHT tungsten alloy for the manufacture of welding, spot welding and contact electrodes with an extremely low burn-off rate and top level of form stability. Compared to tungsten (chemically pure), WS is especially characterised by a better creep resistance and a higher recrystallization temperature. A higher recrystallization temperature leads to better and longer resilience at high and extremely high temperatures (better tool life). Moreover, WS can be machined better, which means that high-quality finishes can be achieved which, in turn, result in enhanced tool life.
TuNgSTeN (chemically pure) is produced by means of the powder metallurgical process with a purity of at least 99.95%. Tungs-ten, chemically pure, possesses outstanding properties, such as:• An extremely high melting point (3420°C) - the highest of all metals - with a low vapour pressure (at 2000°C < 4.10-s [Pa])• High elastic modulus• Good thermal stability with a low thermal expansion coefficient• High density of 19.3 g/cm³ (at 20°C)• Good chemical resistance against inorganic acids, alkaline solutions, organic acids, non-metals, glass without oxidization agents, molten
glass and gases• Consistently good corrosion behaviour compared to molten metals
In its physical and chemical values, tungsten displays properties typical of refractory metals. These are all metals with a melting point higher than that of platinum (1772°C). They are deployed up to around 2900°C (3173K).
Tungsten is mainly used as a basic material in numerous tungsten alloys, e.g. lanthanum oxide-doped tungsten, tungsten heavy alloy, tungsten–copper (EROMET). It has fewer uses in its pure form, e.g. crucibles in the coating industry, heat shielding and heating elements.
ProcessingTungsten is difficult to process, displaying great resistance to any kind of forming and machining (high level of wear on tools). Tungsten and its alloys are easier to process when the brittle-ductile transition temperature is taken into account. At room temperature its ductility is very low.
Just small amounts of alloy additives lower the brittle-ductile transition temperature. All tungsten alloys are therefore easier to process than pure tungsten.
The better processing temperatures are well over the brittle-ductile transition temperature, which is 200°C for a sheet 1 mm thick and 380°C for a sheet 7 mm thick. Turning, milling with tungsten carbide, drilling with HSS and grinding with silicon carbide are all possible. When punching, cutting and transverse rupture, attention must be paid to the sheet thickness and the processing temperature. The material should be bent at right angles to the direction of rolling (microstructure lengthways). If this is not structurally possible, the processing temperature must be increa-sed considerably. Transverse rupture radius ≥ sheet thickness should be adhered to.
Guideline values for transverse rupture temperature Guideline values for punching and cutting temperatures- at 1 mm thickness 300 - 400°C - at 1 mm thickness 400 - 500°C- at 4 mm thickness 600 - 700°C - at 4 mm thickness 850 - 950°C- at 7 mm thickness 650 - 800°C - at 7 mm thickness 950 - 1000°C
• Other dimensions and types as well as cuttings can be supplied at short notice• Tolerance DIN ISO 2768m ( + range)• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale
• Other dimensions and types as well as cuttings can be supplied at short notice• Tolerance DIN ISO 2768m ( + range)• Minimum order value €100.00• Prices from Stuttgart net per unit plus VAT, freight and packing• Subject to technical modifications and prior sale