40XMФA
2026-02-20 15:58:00 Origin： Remark：0 Click：
ГОСT 4543 -1971 Technical specification for steel round bar 40XMФA heat treated forgings plate stock available ESR ingot 40XMФA hot bloomed / rolled / forged, cold drawn rod
TECHNICAL DATA SHEET - 40XMФA
Technical specifications: ГОСT 4543 -1971
Available in stock: round bar diam. 20 ~ 230 mm
PRODUCT DESCRIPTION
The alloy is usually produced by EAF + VD + LF / BEF 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 annealed condition, or bright annealing specially.
Final heat treatment - quenched and tempered.
Rod / round bar / disc (diameter): 6.0 ~ 920 mm
Square bar / flat bar: 10 ~ 630 mm
Plate / sheet via cold & hot rolled / forged: THK 0.50 ~ 300 X wdie 20 ~ 1000 X L mm
Square bar / flat bar: 10 ~ 630 mm
Plate / sheet via cold & hot rolled / forged: THK 0.50 ~ 300 X wdie 20 ~ 1000 X L mm
TYPICAL CHEMICAL COMPOSITIONS (mass weight %)
Carbon, C (％): 0.37 ~ 0.44
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.40 ~ 0.70
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 0.80 ~ 1.10
Nickel, Ni (%): ≤ 0.30
Molybdenum, Mo (％): 0.20 ~ 0.30
Vanadium, V (%): 0.10 ~ 0.18
Carbon, C (％): 0.37 ~ 0.44
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.40 ~ 0.70
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 0.80 ~ 1.10
Nickel, Ni (%): ≤ 0.30
Molybdenum, Mo (％): 0.20 ~ 0.30
Vanadium, V (%): 0.10 ~ 0.18
Ferrum, Fe (%): remainder.
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT
Heat treatment temperature / ℃, annealing: -
Heat working temperature / ℃: 1150 ~ 850
Heat treatment temperature / ℃, quenching: 860 oil cooled
Heat treatment temperature / ℃, tempering : 580 oil cooled
Hardness under annealing condition ≤ HB: 269
Tensile strength, Rm ≥ MPa: 1030
Yield strength, Rp0.2 ≥ MPa: 932
Elongation, A5 ≥ (%): 13.0
Hardness under annealing condition ≤ HB: 269
Tensile strength, Rm ≥ MPa: 1030
Yield strength, Rp0.2 ≥ MPa: 932
Elongation, A5 ≥ (%): 13.0
Reduction of area, Z ≥ (%): 50.0
Impact strength, AK ≥ J: 88
Hardness after final heat treatment / HB: -
Impact strength, AK ≥ J: 88
Hardness after final heat treatment / HB: -
TYPICAL APPLICATIONS
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Steel bar and steel forgings for barrel of middle-small caliber quick firing arms.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
Alloy structural steels are widely used in the filed of ship, vehicle, airplane, guided missile, weapons, railway, bridges, pressure vessel, machine tools, mechanical components with a bigger sectional size and so on.
Steel bar and steel forgings for barrel of middle-small caliber quick firing arms.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
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.
Customizing special material is welcome.
20+ years focus on special steel manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
Raw material stock available
Custom 450 / C450 / XM-25 (S45000), 403 ESR, AISI 616 / 422 ESR, B50A365 / 403Cb+
17-4PH / 630, M-152 / 1.4938 / S151, S159, 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, S111, S131, S154
If you are interested in our products or services, pleased to EMAIL (sales@ccsteels.com) our qualified production engineers or sales department.
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