20Cr1Mo1VNbTiB
2024-05-28 08:39:35 Origin： Remark：0 Click：
Specificatioin GB/T 20410 Steels for Turbine Mechanical Parts at high tmperature 20Cr1Mo1VNbTiB Stock Available Round bar, Flat bar, Bolts 20Cr1Mo1VNbTiB nuts
MATERIAL DATASHEET - GB 20Cr1Mo1VNbTiB
MATERIAL CATEGORY - Steels for Turbine bolts and nuts at high tmperature
PRODUCT DESCRIPTION
The alloy 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, or bright annealing specially.
Final heat treatment - Quenched and tempered.
Working Temperature: 570 ℃ Max.
Stock Available: Round bar diam. 20 ~ 300mm
MATERIAL CATEGORY - Steels for Turbine bolts and nuts at high tmperature
PRODUCT DESCRIPTION
The alloy 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, or bright annealing specially.
Final heat treatment - Quenched and tempered.
Working Temperature: 570 ℃ Max.
Stock Available: Round bar diam. 20 ~ 300mm
MATERIAL SPECIFICATIONS - GB/T 20410 - 2006
MAIN CHEMICAL COMPOSITION (mass weight - %)
Carbon, C (％): 0.17 ~ 0.23
Silicon, Si (％): 0.10 ~ 0.35
Manganese, Mn (％): 0.35 ~ 0.75
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.020
Nickel, Ni (%): ≤ 0.30
Chromium, Cr (％): 0.90 ~ 1.20
Molybdenum, Mo (％): 0.90 ~ 1.20
Copper, Cu (％): ≤ 0.25
Vanadium, V (%): 0.50 ~ 0.70
Titanium, Ti (%): 0.05 ~ 0.14
Boron, B (%): 0.001 ~ 0.004
Niobium, Nb (%): 0.11 ~ 0.22
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT AND HARDNESS
Heat treatment temperature /℃| annealing: 680 ~ 720 air cooling
Heat treatment temperature /℃| Normalizing: -
Heat treatment temperature /℃| Quenching: 1020 ~ 1040 Oil / water
Heat treatment temperature /℃| Tempering : 690 ~ 730
Hardness after annealing ≤HBS: 255 Max.
Tensile strength, Rm ≥ MPa: 785
Yield strength, Rp0.2 ≥ MPa: 670
Elongation, A5 ≥ (%): 14.0
Reduction of area, Z ≥ (%): 50.0
Impact strength, AKu ≥ J: 39
PRODUCT PROFILE & DIMENSIONS
Round bar & Disc (diameter): 5.5mm to 800mm
Square bar / Flat bar: 6mm to 610mm
Length: Fixed length or random length or based on the customer's special requirement.
Plate / Sheet via hot / cold rolled: T0.5 - 200mm X W60 - 1500mm X L1000 - 6000mm
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.
Power generation – turbine fasteners – boiler support rods.
Process plant – fasteners, Mechanical gears, gear shaft, main axis, valve rod
Mechanical parts - connecting rod, bolt and nuts.
Multidiameter shaft, Pressure vessel parts.
TECHNICAL SALES ASSISTANCE
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 meet further on any technical enquiry, pleased to email (sales@ccsteels.com) or call our resident team of qualified production engineers.
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