Rotor Forging Steel 30CrMoNiV
2026-10-03 08:57:55 Origin： Remark：0 Click：
JB/T 7022 Specification for rotor forgings for industrial steam turbines heat treated 30CrMoNiV round bar, plate, peeled rod, 30CrMoNiV cold finished
TECHNICAL DATA SHEET - GB 30CrMoNiV
Steel type: 1.25Cr - 1.1Mo - 0.62Ni - 0.3V - 0.3C base alloy steel
Technical specification: JB/T 7022
Stock in hand: plate, flat bar
Shapes and dimensions:
Round bar, rod, disc (diameter): 6.0 ~ 950 mm
Square bar, flat bar: 8 ~ 650 mm
Plate, sheet, strip: T 0.5 ~ 300 x W 20 ~ 1200 x L mm
TYPICAL CHEMICAL COMPOSITIONS (mass weight - %)
Carbon, C (％): 0.28 ~ 0.34
Manganese, Mn (％): 0.30 ~ 0.80
Silicon, Si (％): ≤ 0.30
Phosphorus, P (％): ≤ 0.015Sulfur, S (％): ≤ 0.012
Chromium, Cr (％): 1.10 ~ 1.40
Molybdenum, Mo (％): 1.00 ~ 1.20
Nickel, Ni (％): 0.50 ~ 0.75
Vanadium, V (%): 0.25 ~ 0.35
Copper, Cu (%): ≤ 0.20
Aluminum, Al (%): ≤ 0.010
Ferrum, Fe (%): balance.
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT PRACTICE
Heat treatment temperature, annealing:
Heat treatment temperature, normalizing: -
Heat treatment temperature, quenching: 880 degrees celsius
Heat treatment temperature, tempering : 550 degrees celsius
Hardness after annealing, ≤ HB: 269
Tensile strength, Rm: 700 ~ 850 MPa
Yield strength, Rp0.2: 550 ~ 700 MPa
Elongation, A5: 15.0% Min.
Reduction of area, Z: 40.0% Min.
Impact strength, AKv: 24 J Min.
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.
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.
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.
We closely cooperate with the professional inspection partners to strictly control the quality and improve the quality manage system, and guarantee the goods delivery each time. It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
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.
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.
We closely cooperate with the professional inspection partners to strictly control the quality and improve the quality manage system, and guarantee the goods delivery each time. It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
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