Structuralsteel 150819153123 Lva1 App6892

Generalized Guidelines forStructural Steel Welding Inspection

As per AWS D1.1Structural Welding Code: Steel

Standard TermsCJP: Complete Joint PenetrationPJP: Partial Joint Penetration

CJP

PJP

Fillet Weld Joints

ScopeGeneral RequirementsDesign of Welded ConnectionsPrequalificationQualificationFabricationInspectionStud WeldingStrengthening and Repair of

Existing Structure

Limitation of CodeThe code is not intended to be used for

the following: (1) Steels with a minimum specified yield

strength greater than 100 ksi (690 MPa) (2) Steels less than 1/8 in. (3 mm) thick. (3) Pressure vessels or pressure piping (4) Base metals other than carbon or low-

alloy steels. AWS D1.6, Structural Welding Code — Stainless Steel, should be used for welding stainless steel structures. Whenever contract documents specify AWS Dl.l for welding stainless steel, the requirements of AWS D1.6 should apply.

Design of Welded ConnectionsPart A: Common Requirements for Design

of Welded Connections (Nontubular and Tubular Members)

Part B: Specific Requirements for Design of Nontubular Connections (Statically or Cyclically Loaded)

Part C: Specific Requirements for Design of Nontubular Connections (Cyclically Loaded

Part D: Specific Requirements for Desing of Tubular Connections (Statically or Cyclically

Weld Joint Configuration

Weld Joint Configuration: Fillet Weld

Weld Joint Configuration: Fillet Weld

Built Up Members

3.0 Prequalification of WPSAs per article 3 prequalification of WPS is exempt

from WPS qualification if following conditions are met

3.2 Welding Process: SMAW, SAW, GMAW (except GMAW-S) and FCAW which conform to all of the provisions of this section shall deemed as prequalified.

3.3Base Metal & Filler MetalShall conform this table

3.4. Procedure approved by Engineer3.5. Minimum Preheat & Inter-pass Temperature Requirement-

Shall be as per Table 3.2 of page 68 (AWS D1.1: 2008 Code)3.6. Limitation of WPS variables“All prequalified WPSs to be used shall be prepared by the

manufacturer, fabricator or contractor as written prequalified WPSs, and shall be available to those authorized to use or examine them. The welding parameter listed below shall be specified on the written WPSs . Change in these parameter , beyond those specified on the written WPS shall be considered essential changes and shall require a new or revised prequalified written WPS

i. Amperage (Wire Feed Speed)ii. Voltageiii. Travel Speediv. Shielding Gas Flow Rate

Prequalification of WPS

3.9 Minimum Fillet Weld Requirement- ShallConform following table

Prequalification of WPSCommon Requirements for Parallel Electrode and Multiple Electrode SAW

4.0 Qualification: WPSWelding Qualification (WPS) is

not necessary unless any of the requirement of prequalification (section 3) does not met.

5.0 Fabrication

6.0 Inspection

6.11: NDT

GENERAL COMMENTSFor CJP Groove weld and Non Tubular Statically loaded section,other than Visual Inspection no additional NDT is required form the code requirement unless additional NDT method like DPT/ MPI specified by the owner user. Contactor shall perform such test as per 6.6.5 para.

6.9 Inspection: Visual Inspection

Table 6.1: Visual Inspection Acceptance Criteria

6.1 Inspection: Visual Inspection Acceptance Criteria

NDT Requirements