1.4939
2025-11-06 13:26:00 Origin： Remark：0 Click：
Creep resistant steel 1.4939 is high temperature high strength alloy, 1.4939 used to produce the high temperature components for gas turbine in the field of aviation.
TECHNICAL DATA SHEET - DIN 1.4939
Material category - high temperature, high tensile steel & superalloy
Product description
The alloy is usually produced by EF + VD followed by electroslag refining (ESR) if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.
Bars are usually supplied bright in the solution annealing condition.
Final heat treatment - heat treatment / QT / solution treatment.
Material technical specifications - DIN 17742, 17460, 17480, DIN EN 10302, 10296, 10095.
Stock & inventory: diam. 40 ~ 210mm, ESR ingot, billets.
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
Chromium, Cr (％): 11.0～12.5
Nickel, Ni (％): 2.00～3.00
Molybdenum, Mo (％): 1.50～2.00
Vanadium, V (％): 0.25 ~ 0.40
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
Vanadium, V (％): 0.25 ~ 0.40
Nitrogen, N (%): 0.02 ~ 0.04.
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Hot forming temperature /℃: 1150～800
Heat treatment temperature /℃ | annealing: 660~690
Heat treatment temperature /℃ | quenching or solution: 1050±15 oil
Heat treatment temperature /℃ | tempering: 640 ~ 690
Heat treatment temperature /℃ | ageing: 590 ~ 640
Condition: heat treatment
Mechanical property under room temperature | Rm / MPa: 950~ 1150
Mechanical property under room temperature | Rp0.2 ≥ MPa: 800
Mechanical property under room temperature | A5 ≥ (％): 13
Mechanical property under room temperature | Akv (DVM): 55
Heat stability temperature/℃: 580
Non-scale temperature in air /℃: 600.
RODUCT PROFILE & DIMENSIONS
Round bar / disc (diameter): 6.0 to 850mm
Square bar / flat bar: 10 to 600mm
Plate / Sheet steel / Steel strip: Thickness 0.5 to 5mm
Width: 8mm to 1000mm
Length: random length or based on the customer's special requirement.
Forged steel shape: stepped shafts / other different shapes based on OEM.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry or help, pleased to Email (sales@ccsteels.com) or call our resident team of qualified production engineers.
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