ASTM A420 standard specification
ASTM A420/A420M-07 Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service.
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Steel Pipe and Fitting Solutions
Sunny Steel Blog
Steel Pipe and Fitting Solutions
ASTM A420
ASTM A420 is the standard specification for pipe fittings of wrought carbon steel and alloy steel for low temperature service.
