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ASTM A-126 Class B

ASTM A-126 Class B

Can anybody tell me the chemical & physical properties of this material?


RE: ASTM A-126 Class B

Tensile strength, minimum: 31 ksi (214 MPa).
Chemistry: Phosphorus 0.75% max, Sulfur 0.15% max.

See ASTM A126-04 Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings

It gives details on sampling for composition, tensile test specimens & also gives several equivalent Classes in ASTM A48 (note: these are size-dependent).

RE: ASTM A-126 Class B

Thanks Ken!

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