25Cr2Mo1V
2025-08-05 09:17:46 Origin： Remark：0 Click：
YB/T 158 1999 Alloy structure steel bars for steam turbine bolts Stock Available 25Cr2Mo1V Round bar, flat bar, plate 25Cr2Mo1V forged blank
MATERIAL DESIGNATION - GB 25Cr2Mo1V
MATERIAL CATEGORY - Alloy structure steel bars for steam turbine bolts.
MATERIAL CATEGORY - Alloy structure steel bars for steam turbine bolts.
MATERIAL SPECIFICATIONS - YB/T 158 - 1999
PRODUCT PROFILE & DIMENSIONS
Rod & round bar & disc (diameter): 5.5 ~ 950 mm
Square bar & flat bar: 8 ~ 650 mm
Plate & Sheet: T 8.0 ~ 350 X W 20 ~ 1000 X L mm
Rod & round bar & disc (diameter): 5.5 ~ 950 mm
Square bar & flat bar: 8 ~ 650 mm
Plate & Sheet: T 8.0 ~ 350 X W 20 ~ 1000 X L mm
Stock Available: Round bar diam. 16 ~ 150mm.
TYPICAL CHEMICAL ELEMENTS (mass fraction %)
Carbon, C (％): 0.22 ~ 0.29
Silicon, Si (％): 0.20 ~ 0.35
Manganese, Mn (％): 0.50 ~ 0.80
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 2.10 ~ 2.50
Molybdenum, Mo (％): 0.90 ~ 1.10
Vanadium, V (％): 0.30 ~ 0.50
Niobium, Nb (％): -
Titanium, Ti (％): -
Nickel, Ni (%): ≤ 0.30
Copper, Cu (%): ≤ 0.25
Ferrum, Fe (%): remainder.
Carbon, C (％): 0.22 ~ 0.29
Silicon, Si (％): 0.20 ~ 0.35
Manganese, Mn (％): 0.50 ~ 0.80
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 2.10 ~ 2.50
Molybdenum, Mo (％): 0.90 ~ 1.10
Vanadium, V (％): 0.30 ~ 0.50
Niobium, Nb (％): -
Titanium, Ti (％): -
Nickel, Ni (%): ≤ 0.30
Copper, Cu (%): ≤ 0.25
Ferrum, Fe (%): remainder.
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT
Heat treatment temperature / ℃ | annealing: -.
Heat treatment temperature / ℃ | Normalizing: -
Heat treatment temperature / ℃ | Quenching: 1040 air cooling
Heat treatment temperature / ℃ | annealing: -.
Heat treatment temperature / ℃ | Normalizing: -
Heat treatment temperature / ℃ | Quenching: 1040 air cooling
Heat treatment temperature / ℃ | Tempering : ≥ 660 air cooling
Hardness after annealing, ≤ HBW: 269
Tensile strength, Rm ≥ MPa: 735
Yield strength, Rp0.2 ≥ MPa: 590
Elongation, A5 ≥ (%): 16.0
Reduction of area, Z ≥ (%): -
Impact strength, AKu ≥ J: -
Hardness after final heat treatment / HBW: 241 max.
Hardness after annealing, ≤ HBW: 269
Tensile strength, Rm ≥ MPa: 735
Yield strength, Rp0.2 ≥ MPa: 590
Elongation, A5 ≥ (%): 16.0
Reduction of area, Z ≥ (%): -
Impact strength, AKu ≥ J: -
Hardness after final heat treatment / HBW: 241 max.
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.
Mechanical parts - connecting rod, bolt and nuts.
Multi-diameter shaft, pressure vessel parts.
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.
Mechanical parts - connecting rod, bolt and nuts.
Multi-diameter shaft, pressure vessel parts.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, mechanical gears, gear shaft, main axis, valve rod.
PRODUCT DESCRIPTION
25Cr2Mo1V is usually produced by EAF + VD + LF 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.
Final heat treatment - Quenched and tempered.
25Cr2Mo1V is usually produced by EAF + VD + LF 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.
Final heat treatment - Quenched and tempered.
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.
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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