AWS D9.1 : 1990

Personnel
Foreword
1 Scope, purpose, and applications
1.1 Scope
1.2 Purpose
1.3 Applications
Part A - Arc welding
2 General provisions for arc welding
2.1 Base metal
2.2 Filler metal
2.3 Processes
2.4 Terms and definitions
2.5 Symbols
2.6 Standard units of measurement
3 Arc welding procedure qualification
3.1 Prior procedure qualification
3.2 Required procedure qualification tests
3.3 Limitations of procedure qualifications
3.4 Inspection of procedure qualification test welds
3.5 Responsibility for test
3.6 Duration of procedure qualification
4 Qualification arc welders and arc welding
      operators
4.1 Prior welding and welding operator qualification
4.2 Required welder and welding operator qualification
4.3 Limitations of welder and welding operator
      qualifications
4.4 Inspections of welder and welding operator
      qualification test welds
4.5 Responsibility for tests
4.6 Duration of qualification
5 Arc welding workmanship
5.1 Uniformity
5.2 Cleanliness
5.3 Position
5.4 Current
5.5 Inspection of workmanship
6 Inspection of arc welding work
6.1 Fusion
6.2 Penetration
6.3 Reinforcement of groove welds
6.4 Throat and convexity of fillet welds
6.5 Porosity or inclusions
6.6 Undercut
6.7 Cracks
6.8 Conformance
Part B - Braze welding
7 General provisions for braze welding
7.1 Base metal
7.2 Filler metal
7.3 Processes
7.4 Terms and definitions
7.5 Symbols
7.6 Standard units of measurement
8 Braze welding procedure qualification
8.1 Prior procedure qualification
8.2 Required procedure qualification tests
8.3 Limitations of procedure qualifications
8.4 Inspection of procedure qualification test braze
      welds
8.5 Responsibility for test
9 Qualification of braze welders and braze welding
      operators
9.1 Prior braze welder and welding operator
      qualifications
9.2 Required braze welder and braze welding operator
      qualification tests
9.3 Limitations of braze welder and braze welding
      operator qualifications
9.4 Inspection of braze welder and braze welding
      operator qualification test braze welds
9.5 Responsibility for tests
9.6 Duration of qualification
10 Braze welding workmanship
10.1 Uniformity
10.2 Cleanliness
10.3 Position
10.4 Current
10.5 Inspection of workmanship
11 Inspection of braze welding work
11.1 Bonding
11.2 Reinforcement of braze groove welds in butt joints
11.3 Throat and convexity of braze fillet welds
11.4 Porosity or inclusions
11.5 Cracks
11.6 Conformance
12 Safety and health
Appendices
A Recommended filler metals
B Terms and definitions
C Gauge numbers and equivalent thicknesses in U.S.
      customary units and S.I. units
D Welding procedure specification form
E Procedure qualification test record form
F Welder and welding operator qualification test
      record form
G Part A, Arc welding; Part B Braze welding joint
      designs and details
H Recommended arc welding practices
I Recommended braze welding practices
J Safety and health

Covers braze and arc welding as they apply to the fabrication and erection of non structural sheet metal ventilation, heating and air conditioning systems; food processing equipment; architectural and similar applications. It is not applicable where vacuum or pressure is more than 4 psig or where structural requirements are concerned.