Transcription of AWS D1.6 WPQR Guides - WPSAmerica.com
1 AWS (Structural Welding Code-Stainless Steel) Quick Review on Performance Qualification (References: AWS , Section 4 (Part B), Table , , , ) 1- guide (Limitation of Variables) General Requirements: AWS , , Base Metal: Qualification on any one of materials, as shown in clause , shall be considered as qualification to weld any material permitted in this code. With the approval of the engineer, performance qualification test coupon may be with any of Group I or II of AWS Qualification with any one of those materials shall be considered as qualification to weld any material permitted in this code. AWS , , Tack Welding: This code does not recognize tack welders.
2 Tack welding shall be done by qualified welders or operators. Essential Variables: Process, Position, Vertical progression, Omission of backing material (if used on the test). 2- guide (Thickness of Base Metal Range) AWS , Table : Test on Plate or Pipe, Groove Welds*: T: Thk. of Test Coupon; t: Thk. of Qualified Deposited Weld T up to 3/8 in. (10 mm), incl.: Qualified Thickness Range: 1/16 in. (2 mm) Min., 2t Max. T over 3/8 in. (10 mm) to less than 3/4 in. (20 mm): Qualified Thickness Range: 1/8 in. (3 mm) Min., 2t Max. T from 3/4 in. (20 mm) and over: Qualified Thickness Range: 1/8 in. (3 mm) Min., Maximum to be welded *Groove qualifies fillet welds within limitation of Table and (See AWS , Table for Test Figures) Small Pipe Diameter Fillet-Weld Test*: OD of Test Coupon in.
3 (mm) OD-Qualified in. (mm) Less than 1 (25) Max. size welded 1 (25) to less than 2-7/8 (73) 1 (25) and over 2-7/8 (73) and over 2-7/8 (73) and over 2-7/8 in. (73 mm) OD=NPS 2-1/2 (65) *Qualified Thickness limited to minimum WPS limits to unlimited. (See AWS , Table for Test Figures) PAGE 1 OF 2 AWS (Structural Welding Code-Stainless Steel) 3- guide (Position) (I) AWS , Table , Groove* (Plate and Pipe) Position Tested Position Qualified Plate or Pipe (A) (B) (C) 1G F F F 1G Rotated F F F, H 2G F, H F, H F, H 3G F, V F F, H, V 4G F, O F F, H, O 5G F, V, O F, V, O All 6G All All All (A) Groove, Plate and Pipe Over 24 in.
4 (600 mm) OD (B) Groove, Pipe 2-7/8 in. (73 mm) to 24 in. (600 mm) OD, incl. (C) Fillet, Plate and Pipe 2-7/8 in. (73 mm) [NPS 2-1/2] and over Groove* Test on Smaller Pipe Diameter: Outside Diameter OD-Qualified OD of Test Coupon in. (mm) Groove in. (mm) Less than 1 (25) Size welded and over 1 (25) through 2-7/8 (73) 1 (25) and over Over 2-7/8 (73) 2-7/8 (73) and over 2-7/8 in. (73 mm) OD=NPS 2-1/2 (65) * Groove qualifies fillet welds on all diameters for pipe-fillet * Vertical uphill to downhill or vice versa is essential variable (II) AWS , Table , Fillet (Plate and Pipe) Position Tested Position Qualified Plate or Pipe* Fillet 1F, 1F Rotated F 2F, 2FR F, H 3F F, H, V 4F F, H, O 5F All * Pipe 2-7/8 in.
5 (73 mm) OD (NPS 2-1/2) and over * Vertical uphill to downhill or vice versa is essential variable PAGE 2 OF 2
