P5c

Alloy Steel

Seamless ferritic alloy-steel tube (P5c). Same Cr-Mo family as T-grades; used in boiler and high-temperature piping, with advanced grades (P91/P92/P122) for ultra-supercritical service.

Mechanical Properties

Tensile 415-760 MPa min Yield 205-440 MPa min Elongation 18-30% min (varies by grade; creep-resistant grades higher)

Chinese Standard

ASME SA-213/SA-213M (P-designations also per SA-335); ASTM A213

Applications

Boilers, superheaters, reheaters, economizers, heat exchangers, high-temp/pressure piping

Available Forms

Seamless tube, pipe

Uses

Boiler/superheater tubes and pipe, high-temp piping

Heat Treatment

Normalize+temp or anneal (per grade); 9-12%Cr grades normalize 1040-1080 C + temper 730-800 C

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