Stainless steel 1.4938
2026-07-29 09:14:07 Origin： Remark：0 Click：
DIN 10302 specification of martensitic creep-resisting steel 1.4938 hardened round bar, flat bar, stock available ESR steel ingot 1.4938 heat treated, cold finished
MATERIAL DESIGNATION - DIN 1.4938
Steel category: 12Cr - 3.0Ni - 2.0Mo base martensitic creep-resisting steel
Stock on hand round bar, flat bar, forging block
Techncial standard: 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
TYPICAL MECHANICAL PROPERTIES UNDER ROOM TEMP.
Heat treatment practice condition:
Heat treatment practice condition:
quenched 1050℃, oil cooled
tempered 560 ℃, air cooled
Tensile strength, Rm / MPa: 980
Tensile strength, Rm / MPa: 980
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (％): 15.0
Elongation, A5 ≥ (％): 15.0
Impact strength, AKv: 30J min.
1.4938 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, it is used for the production of aviation propellers, especially loaded gears, ball screws, responsible parts working at elevated temperatures.
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