22Si2MnCrNi2Mo
Alloy Steel22Si2MnCrNi2Mo — alloy steel (GB/T 3077). Shafts, gears, axles, connecting rods, bolts, machinery structural parts, automotive and engineering components.
Mechanical Properties
QT: Rm ≥1250 MPa, Rp0.2 ≥1100 MPa, A ≥10%
Chinese Standard
GB/T 3077
Equivalent Standards
FF710
Applications
DTH drill rod
Available Forms
Bar
Uses
Shafts, gears, axles, connecting rods, bolts, machinery structural parts, automotive and engineering components.
Heat Treatment
Normalized at 850-900°C, air cooled. Quenched + tempered at 550-650°C for improved strength. Specific treatment per grade standard (GB/T 3077, ASTM A29).
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