Martensitic blade steel 1.4938
2026-08-10 16:30:49 Origin： Remark：0 Click：
X12CrNiMoV12-3 steel is widely used for the production of aviation propellers, especially loaded gears, ball screws, responsible parts working at elevated temperatures
1.4938 (X12CrNiMoV12-3) is a high-alloy content of 12.0%Cr - 3.0%Ni - 2.0%Mo steel with the addition of 0.33% Vanadium for carburization with a martensitic structure, 1.4938 provides high strength properties and significantly increased resistance to oxidation.
DIN X12CrNiMoV12 is widely used for the production of aviation propellers, especially loaded gears, ball screws, responsible parts working at elevated temperatures.
Stock available: round bar, flat bar, plate
Techncial specifications: DIN 17442,17744, DIN EN 10302, 10095, EN 10088-1
Typical chemical compositions (mass weight - %)
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
MECHANICAL PROPERTIES UNDER ROOM TEMP.
Heat treatment practice condition:
Heat treatment practice condition:
Quenched 1010/1050℃, oil cooled
Tempered 560 ℃, air cooled
Stress relief annealed: 530 ℃, air cooled
Tensile strength, Rm / MPa: 1000
Tensile strength, Rm / MPa: 1000
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (％): 15.0
Elongation, A5 ≥ (％): 15.0
Impact strength, AKv: 40J min.
MANUFACTURING TECHNOLOGY
1.4938 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 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.
20+ years focus on special steel manufacturing and processing.
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