20CrMo1VNbTiB
2025-06-19 14:15:23 Origin： Remark：0 Click：
Material Specifications YB/T 158 1999 Alloy structure steel bars for steam turbine bolts Stock Available 20CrMo1VNbTiB Round bar, flat bar, forge piece, and plate
TECHNICAL DATA SHEET - GB 20CrMo1VNbTiB
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 ~ 850mm
Square bar & flat bar: 10 ~ 600mm
Plate & Sheet: T 8.0 ~ 300 X W 10 ~ 1000 X L mm
Rod & round bar & disc (diameter): 5.5 ~ 850mm
Square bar & flat bar: 10 ~ 600mm
Plate & Sheet: T 8.0 ~ 300 X W 10 ~ 1000 X L mm
TYPICAL CHEMICAL ELEMENTS (mass weight %)
Carbon, C (％): 0.17 ~ 0.23
Silicon, Si (％): 0.40 ~ 0.60
Manganese, Mn (％): 0.40 ~ 0.65
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 0.90 ~ 1.20
Molybdenum, Mo (％): 0.75 ~ 1.00
Vanadium, V (％): 0.50 ~ 0.70
Niobium, Nb (％): 0.11 ~ 0.22
Titanium, Ti (％): 0.05 ~ 0.14
Nickel, Ni (%): ≤ 0.30
Copper, Cu (%): ≤ 0.30
Aluminum, Al (%): -
Carbon, C (％): 0.17 ~ 0.23
Silicon, Si (％): 0.40 ~ 0.60
Manganese, Mn (％): 0.40 ~ 0.65
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 0.90 ~ 1.20
Molybdenum, Mo (％): 0.75 ~ 1.00
Vanadium, V (％): 0.50 ~ 0.70
Niobium, Nb (％): 0.11 ~ 0.22
Titanium, Ti (％): 0.05 ~ 0.14
Nickel, Ni (%): ≤ 0.30
Copper, Cu (%): ≤ 0.30
Aluminum, Al (%): -
Boron, B (%): 0.005
Ferrum, Fe (%): remainder.
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT
Heat treatment temperature / ℃ | annealing: -.
Heat treatment temperature / ℃ | Normalizing: -
Heat treatment temperature / ℃ | Quenching: 1030 oil / water cooling
Heat treatment temperature / ℃ | Tempering : 710 water cooling
Hardness after annealing, ≤ HBW: 269
Tensile strength, Rm ≥ MPa: 780
Yield strength, Rp0.2 ≥ MPa: 680
Elongation, A5 ≥ (%): 14.0
Reduction of area, Z ≥ (%): 50.0
Impact strength, AKu ≥ J: 39
Hardness after final heat treatment / HBW: 269 max.
Hardness after annealing, ≤ HBW: 269
Tensile strength, Rm ≥ MPa: 780
Yield strength, Rp0.2 ≥ MPa: 680
Elongation, A5 ≥ (%): 14.0
Reduction of area, Z ≥ (%): 50.0
Impact strength, AKu ≥ J: 39
Hardness after final heat treatment / HBW: 269 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.
Multidiameter 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.
Multidiameter shaft, Pressure vessel parts.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod.
PRODUCT DESCRIPTION
20CrMo1VNbTiB 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.
Final heat treatment - Quenched and tempered.
Stock Available: Round bar diam. 20 ~ 180mm, plate, sheet
20CrMo1VNbTiB 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.
Final heat treatment - Quenched and tempered.
Stock Available: Round bar diam. 20 ~ 180mm, plate, sheet
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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