Historical
ASTM A860/A860M-10
Standard Specification for Wrought High-Strength Low-Alloy Steel Butt-Welding Fittings
1.1 This specification covers wrought high-strength ferritic steel butt-welding fittings of seamless and electric fusion-welded construction covered by the latest revisions of ASME B16.9 and MSS-SP-75. Butt-welding fittings differing from
ASTM International [astm]