X50MnCrWN18-4
2026-02-02 10:38:00 Origin： Remark：0 Click：
DIN SEW 390 specification X50MnCrWN18-4 ring forge, round bar, flat bar steelmaking, ESR ingot, hot bloomed, forged / rolled, heat treated
OFFICIAL TEST CERTIFICATE: issued by TUV - SGS - BV
TECHNICAL DATA SHEET - X50MnCrWN18-4
Material category: Mn18 - Cr4 - W1.0 nonmagnetic forged ring for steam turbine generator
Material specifications: DIN SEW 390 (1991) / JB/T 1268 -93
Typical chemical compositions (mass fraction %)
Carbon, C (％): 0.40 ~ 0.60
Silicon, Si (％): 0.30 ~ 0.80
Manganese, Mn (％): 17.0 ~ 19.0
Phosphorus, P (％) ≤: 0.060
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 3.50 ~ 6.00
Silicon, Si (％): 0.30 ~ 0.80
Manganese, Mn (％): 17.0 ~ 19.0
Phosphorus, P (％) ≤: 0.060
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 3.50 ~ 6.00
Nickel, Ni (％): -
Molybdenum, Mo (％): -
Vanadium, V (%): -
Tungsten, W (%): 0.70 ~ 1.20
Aluminum, Al (%): -
Nitrogen, N (％): ≥ 0.08
Nitrogen, N (％): ≥ 0.08
HOT WORKING, HEAT TREATMENT AND MECHANICAL PROPERTIES
Grade one
Tensile strength, Rm ≥ MPa: 895
Yield strength, Rp0.2 ≥ MPa: 760
Elongation, A5 ≥ (％): 25.0
Yield strength, Rp0.2 ≥ MPa: 760
Elongation, A5 ≥ (％): 25.0
Reduction of area, Z ≥ (％): 35.0
Impact strength, Akv ≥ J: -
Impact strength, Akv ≥ J: -
Grade two
Tensile strength, Rm ≥ MPa: 965
Yield strength, Rp0.2 ≥ MPa: 825
Elongation, 5A ≥ (％): 20.0
Yield strength, Rp0.2 ≥ MPa: 825
Elongation, 5A ≥ (％): 20.0
Impact strength, Akv ≥ J: -
Grade three
Tensile strength, Rm ≥ MPa: 1035
Yield strength, Rp0.2 ≥ MPa: 900
Elongation, A5 ≥ (％): 20.0
Yield strength, Rp0.2 ≥ MPa: 900
Elongation, A5 ≥ (％): 20.0
Reduction of area, Z ≥ (％): 30.0
Impact strength, Akv ≥ J: -
Impact strength, Akv ≥ J: -
TYPICAL APPLICATIONS
High-voltage electrical apparatus, bolts and nuts
Transformer tank, Generator or parts, Preparation equipments
Electronics.
PRODUCT DESCRIPTION
The alloy is usually produced by AOD / VD / BEF followed by electroslag refining (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment + ageing
The alloy is usually produced by AOD / VD / BEF followed by electroslag refining (ESR) / VAR if necessary for special purpose. Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied black/bright in the annealed condition.
Final heat treatment - solution treatment + ageing
PRODUCT PROFILE & DIMENSIONS
Round bar / rod / disc (diameter): 6.0 to 800 mm
Square bar / flat bar: 8 to 600 mm
Length: random length or based on the customer's special requirement.
Round bar / rod / disc (diameter): 6.0 to 800 mm
Square bar / flat bar: 8 to 600 mm
Length: random length or based on the customer's special requirement.
Heavy/middle plate via hot rolled: T7 ~ 400 X W20 ~ 1200 X L1000 ~ 4000 mm
Sheet steel via cold rolled: T0.5 ~ 6 X W10 ~ 1000 X L1000 ~ 2000 mm
Forging piece: stepped shafts, other different shapes based on OEM.
Sheet steel via cold rolled: T0.5 ~ 6 X W10 ~ 1000 X L1000 ~ 2000 mm
Forging piece: stepped shafts, other different shapes based on OEM.
HEAT TREATMENT PRACTICE
Heat treatment is only suitable for specific grades of stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. - Email: sales@ccsteels.com
Heat treatment is only suitable for specific grades of stainless steel. When heat treating a stainless the hardening temperatures, including rate of heating, cooling and soaking times will vary due to several factors such as the shape and size of each component. Other considerations during the heat treatment process include the type of furnace, quenching medium and work piece transfer facilities. Please consult with the heat treatment provider for whole guidance on heat treatment of stainless steel grades. We are delighted to help to work with you the special heat treatment based on your special requirements.
TECHNICAL SALES ASSISTANCE
If you meet further on any technical enquiry. pleased to EMAIL our resident team of qualified production engineers. - Email: sales@ccsteels.com
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