Martensitic steel X12CrNiMoV12-3
2026-07-31 16:16:55 Origin： Remark：0 Click：
X12CrNiMoV12-3 designation heat resistant steel is generally smelt in EAF - electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
1.4938 (X12CrNiMoV12-3) is a high-alloy content of 12.0%Cr - 3.0% Ni - 2.0% Mo steel with the addition of vanadium for carburization with a martensitic structure, 1.4938 has high strength properties and significantly increased resistance to oxidation, X12CrNiMoV12 is used for the production of aviation propellers, especially loaded gears, ball screws, responsible parts working at elevated temperatures.
Material type: 12%Cr martensitic creep-resisting steel
Stock available: round bar diam. 40 ~ 210 mm, flat bar
Technical standard: DIN 17442,17744, DIN EN 10302, 10095, EN 10088-1
Typical chemical compositions (mass fraction - %)
Carbon, C (％): 0.08 ~ 0.15
Silicon, Si (％): ≤ 0.50
Manganese, Mn (％): 0.40 ~ 0.90
Phosphorus, P (％): ≤ 0.025
Sulfur, S (％): ≤ 0.015
Silicon, Si (％): ≤ 0.50
Manganese, Mn (％): 0.40 ~ 0.90
Phosphorus, P (％): ≤ 0.025
Sulfur, S (％): ≤ 0.015
Chromium, Cr (％): 11.0 ~ 12.5
Nickel, Ni (％): 2.00 ~ 3.00
Molybdenum, Mo (％): 1.50 ~ 2.00
Nickel, Ni (％): 2.00 ~ 3.00
Molybdenum, Mo (％): 1.50 ~ 2.00
Nitrogen, N (%): 0.020 ~ 0.040
Aluminum, Al (%): -
Vanadium, V (％): 0.25 ~ 0.40
TYPICAL MECHANICAL PROPERTIES UNDER AMBIENT TEMP.
Heat treatment practice:
Heat treatment practice:
Quenched 1020℃, oil cooled
Tempered 560 ℃, holding 3h, air cooled
Stress relief annealed: 530 ℃, air cooled
Tensile strength, Rm / MPa: 1000
Tensile strength, Rm / MPa: 1000
Yield strength, Rp0.2 ≥ MPa: 795
Elongation, A5 ≥ (％): 15.0
Elongation, A5 ≥ (％): 15.0
Impact strength, AKv: 40J min.
PROFILE AND DIMENSIONS
Round bar & rod & disc (diameter): 6.0 ~ 900 mm
Square bar & flat bar: 8 ~ 600 mm
Steel strip via cold rolled: T0.5 ~ 6 X W10 ~ 300 X L mm (or in coil form)
Round bar & rod & disc (diameter): 6.0 ~ 900 mm
Square bar & flat bar: 8 ~ 600 mm
Steel strip via cold rolled: T0.5 ~ 6 X W10 ~ 300 X L mm (or in coil form)
Forging piece: stepped shafts, and other different shapes based on OEM.
MANUFACTURING TECHNOLOGY
X12CrNiMoV12-3 heat resistant steel is generally smelt in EAF - electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
X12CrNiMoV12-3 heat resistant steel is generally smelt in EAF - electric arc furnace or induction furnace. For higher quality,it should be smelt via technology of vacuum refining and external refining.
TECHNICAL SALES ASSISTANCE & SERVICE
20+ years focus on special steel manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Raw material stock available
Raw material stock available
Custom 450 / GD450 / XM-25 (S45000), 403 ESR, AISI 616 / 422 ESR, B50A365 / 403Cb+
17-4PH / 630, M-152 / 1.4938 / S151D, FV520B / S143 / 1.4594. X22CrMoV12-1
13Х11Н2B2MФ / AE961W, 11Х11Н2B2MФ / 16Х11Н2B2MФ
AISI 615 / S41800, 15-5PH / XM-12 (S15500), A-286 AISI 660 / S66286
10705BU, 10705MBU, 10705AJ, S132, S131, S111, S159, S154
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