ASTM A691/A691M : Standard Specification for Carbon and …
ASTM A691/A691M, 2019 Edition, November 1, 2019 - Standard Specification for Carbon and Alloy Steel Pipe, Electric-Fusion-Welded for High-Pressure Service at High Temperatures This specification 2 covers carbon and alloy steel pipe, electric-fusion-welded with filler metal added, fabricated from pressure-vessel-quality …