PCrMo
2024-12-26 10:47:45 Origin： Remark：0 Click：
GJB 3783A - 2015 Specification for Steel PCrMo bars and steel forgings for barrel of middle-small caliber quick firing arms.
TECHNICAL DATA SHEET - GJB PCrMo
Material category - Cr - Ni - Mo - V alloy steel
Material category - Cr - Ni - Mo - V alloy steel
Material specifications - GJB 3783A - 2015
Available in stock: round bar diam. 50 ~ 150mm, ESR ingot.
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 bars 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 bars 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.
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.
Round bar & rod & disc (diameter): 5.5 ~ 850mm
Square bar & flat bar: 8 ~ 640mm
Plate & Sheet: cold & hot rolled / forged T 2.0 ~ 300 X W 10 ~ 1000 X L mm
Square bar & flat bar: 8 ~ 640mm
Plate & Sheet: cold & hot rolled / forged T 2.0 ~ 300 X W 10 ~ 1000 X L mm
TYPICAL CHEMICAL COMPOSITIONS (mass weight - %)
Carbon, C (％): 0.32 ~ 0.42
Silicon, Si (％): 0.17 ~ 0.37
Carbon, C (％): 0.32 ~ 0.42
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.25 ~ 0.50
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 0.90 ~ 1.30
Nickel, Ni (%): ≤ 0.50
Phosphorus, P (％) ≤: 0.025
Sulfur, S (％) ≤: 0.015
Chromium, Cr (％): 0.90 ~ 1.30
Nickel, Ni (%): ≤ 0.50
Molybdenum, Mo (％): 0.20 ~ 0.30
Vanadium, V (％): -
Ferrum, Fe (%): remainder.
Vanadium, V (％): -
Ferrum, Fe (%): remainder.
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT
Heat treatment temperature /℃| annealing: -.
Heat treatment temperature /℃| Normalizing: 860, air cooling
Heat treatment temperature /℃| Quenching: 850 oil cooling
Heat treatment temperature /℃| Tempering : 560 ~ 650 air cooling
Hardness after annealing, ≤ HBW: 207
Tensile strength, Rm ≥ MPa: 635 / 980
Yield strength, Rp0.2 ≥ MPa: -
Elongation, A5 ≥ (%): 25.0
Reduction of area, Z ≥ (%): -
Impact strength, AK ≥ J: 15
Hardness after final heat treatment / HBW: -
Hardness after annealing, ≤ HBW: 207
Tensile strength, Rm ≥ MPa: 635 / 980
Yield strength, Rp0.2 ≥ MPa: -
Elongation, A5 ≥ (%): 25.0
Reduction of area, Z ≥ (%): -
Impact strength, AK ≥ J: 15
Hardness after final heat treatment / HBW: -
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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