This document provides generalized guidelines for structural steel welding inspection as per the AWS D1.1 Structural Welding Code for Steel. It covers standard terms, the scope of the code, limitations on its use, design of welded connections, weld joint configurations, prequalification of welding procedures, qualification requirements, fabrication, inspection, and non-destructive testing requirements. Key areas addressed include complete and partial joint penetration welds, fillet welds, prequalification criteria for common welding processes and materials, visual inspection acceptance standards, and additional non-destructive testing as required.

1. Generalized Guidelines for
Structural Steel Welding
Inspection
As per AWS D1.1
Structural Welding Code: Steel

2. Standard Terms
 CJP: Complete Joint Penetration
 PJP: Partial Joint Penetration
CJP
PJP
Fillet Weld

3. Scope
 General Requirements
 Design of Welded Connections
 Prequalification
 Qualification
 Fabrication
 Inspection
 Stud Welding
 Strengthening and Repair of Existing
Structure

4. Limitation of Code
 The 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

5. Design of Welded
Connections
 Part 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

6. Weld Joint Configuration

7. Weld Joint Configuration: Fillet
Weld

8. Weld Joint Configuration: Fillet
Weld

9. Built Up Members

10. 3.0 Prequalification of WPS
 As 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.
3.3 Base Metal & Filler Metal
Shall conform this table

11. 3.4. Procedure approved by Engineer
3.5. 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. Voltage
iii. Travel Speed
iv. Shielding Gas Flow Rate
Prequalification of WPS

12.  3.9 Minimum Fillet
Weld Requirement- Shall
Conform following
table
Prequalification of WPS
Common Requirements for Parallel Electrode and Multiple
Electrode SAW

13. 4.0 Qualification: WPS
 Welding Qualification (WPS) is not
necessary unless any of the
requirement of prequalification
(section 3) does not met.

14. 5.0 Fabrication

15. 6.0 Inspection

16. 6.11: NDT
GENERAL
COMMENTS
For 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.

17. 6.9 Inspection: Visual Inspection
Table 6.1: Visual Inspection Acceptance Criteria

18. 6.1 Inspection: Visual Inspection Acceptance
Criteria

19. NDT Requirements