Standards
Material Standards
ASTM A105/A105M
Carbon Steel Flange Standard Specification
ASTM A182
Alloy and Stainless Steel Flange Standard Specification
ASTM A694
For High Pressure Transmissions
ASTM A350
Carbon and Low Alloy Steel Flanges for Low Temperature Services
Manufacturing Standards
ASME B16.5
Flange and Flanged Fittings Specification
MSS SP-44
For Steel Pipeline Flange