ISO X12CrMo12-6
2026-04-15 15:30:00 Origin： Remark：0 Click：
High temperature alloy steel for internal combustion engine X12CrMo12-6 round bar, flat bar, forgings, ESR melting, hot bloomed, rolled, heat treated
TECHNICAL DATA SHEET - X12CrMo12-6
Official test report: issued by TUV - SGS - BV
Material category: high temperature alloy steel for internal combustion engine
Technical specifications: ISO / TR 4956 - 1984
Typical chemical compositions (mass weight - %)
Carbon, C (％): 0.08 ~ 0.16
Silicon, Si (％): ≤ 0.60
Manganese, Mn (％): 0.40 ~ 1.00
Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.025
Chromium, Cr (％): 11.5 ~ 13.0
Silicon, Si (％): ≤ 0.60
Manganese, Mn (％): 0.40 ~ 1.00
Phosphorus, P (％): ≤ 0.030
Sulfur, S (％): ≤ 0.025
Chromium, Cr (％): 11.5 ~ 13.0
Nickel, Ni (%): ≤ 1.00
Molybdenum, Mo (％): 0.40 ~ 0.80
Molybdenum, Mo (％): 0.40 ~ 0.80
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Condition of heat treatment: quenched and tempered
Tensile strength, σb ≥ MPa: 680 ~ 880
Yield strength, σ0.2 ≥ MPa: 490
Yield strength, σ0.2 ≥ MPa: 490
Elontation, A5 ≥ (％): 20.0
Reduction of area, Z ≥ (％): 60.0
Reduction of area, Z ≥ (％): 60.0
Impact, AKv : 78J min.
Hardness | HBW: 192 min.
Hardness | HBW: 192 min.
Bars are usually supplied black/bright in the annealed condition.
PROFILE AND DIMENSIONS
Round bar / disc (diameter): 6.0 ~ 850 mm
Square bar / flat bar: 10 ~ 600 mm
Round bar / disc (diameter): 6.0 ~ 850 mm
Square bar / flat bar: 10 ~ 600 mm
Steel strip via cold rolled: T0.5 - 3 X W10 ~ 250 X L mm (or in coil form)
Forging piece: different shapes based on OEM.
Forging piece: different shapes based on OEM.
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