Carbon and low-temperature steels
Frequently specified forged and cast groups include ASTM A105, ASTM A216 WCB, ASTM A350 LF2 and ASTM A352 LCB/LCC. Low-temperature suitability depends on the specified grade, impact requirements, heat treatment and design code.
Stainless steel and duplex
Common forged and cast groups include ASTM A182 F304/F316 and ASTM A351 CF8/CF8M. Duplex requests may specify F51/F53 or their exact UNS designations. Ensure that casting equivalents are separately identified.
Special alloys
Nickel alloys, titanium, aluminum bronze and other corrosion-resistant grades require close attention to product form and material specification. “Inconel,” “Monel” and “Hastelloy” are alloy-family or trade-name terms, not a complete purchase specification.
Material document package
For material-critical projects, ask for heat/lot traceability, EN 10204 3.1 inspection documents where specified, chemical and mechanical properties, PMI scope and corrosion or sour-service requirements.
Frequently asked questions
Is F316 the same as CF8M?
No. F316 is a wrought/forged product designation; CF8M is a casting grade. They are different procurement specifications.
Can a material grade alone confirm valve suitability?
No. Suitability also depends on medium, temperature, pressure, trim and seat components.