21Cr12MoV

High-Temp Steel

21Cr12MoV — high-temperature alloy (GB/T 1221). Turbine blades and disks, jet engine components, high-temperature fasteners, furnace internals, petrochemical processing equipment.

Mechanical Properties

QT: Rm ≥930 MPa, Rp0.2 ≥760 MPa, A ≥14%

Chinese Standard

GB/T 1221

Equivalent Standards

AISI 422, 21Cr12MoV

Applications

Turbine blade

Available Forms

Bar

Uses

Turbine blades and disks, jet engine components, high-temperature fasteners, furnace internals, petrochemical processing equipment.

Heat Treatment

Solution treated at 980-1100°C, water quench or air cool. Age/harden at 700-800°C per alloy specification (GB/T 14992, AMS specifications).

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