20XГP
2025-06-02 10:35:33 Origin： Remark：0 Click：
ГОСT 4543 -1971 Material Specification for Steel Round bar 20XГP Steel forgings, Plate 20XГP stock available ESR ingot, Hot blooming / rolling / forging, Heat treatment
MATERIAL DESIGNATION - 20XГP
Material specifications: ГОСT 4543 -1971
PRODUCT DESCRIPTION
Grade 20XГT 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.
Grade 20XГT 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.
Final heat treatment - Quenched and tempered.
Rod / round bar / disc (diameter): 5.5 ~ 800mm
Square bar & flat bar: 8 ~ 600mm
Plate & Sheet: cold & hot rolled / forged T 2.0 ~ 300 X W 10 ~ 1500 X L mm
Square bar & flat bar: 8 ~ 600mm
Plate & Sheet: cold & hot rolled / forged T 2.0 ~ 300 X W 10 ~ 1500 X L mm
TYPICAL CHEMICAL COMPOSITIONS (mass fraction %)
Carbon, C (％): 0.18 ~ 0.24
Silicon, Si (％): 0.17 ~ 0.37
Carbon, C (％): 0.18 ~ 0.24
Silicon, Si (％): 0.17 ~ 0.37
Manganese, Mn (％): 0.70 ~ 1.00
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 0.75 ~ 1.05
Nickel, Ni (%): ≤ 0.30
Phosphorus, P (％) ≤: 0.035
Sulfur, S (％) ≤: 0.025
Chromium, Cr (％): 0.75 ~ 1.05
Nickel, Ni (%): ≤ 0.30
Molybdenum, Mo (％): ≤ 0.15
Boron, B (%): 0.001 ~ 0.005
Titanium, Ti (%): ≤ 0.03
Titanium, Ti (%): ≤ 0.03
Tungsten, W (%): ≤ 0.20
Vanadium, V (%): ≤ 0.05
MECHANICAL PROPERTIES - HOT WORKING, HEAT TREATMENT
Heat treatment temperature / ℃, annealing: -.
Heat working temperature / ℃: 1200 ~ 900
Heat treatment temperature / ℃, quenching: 880 oil cooling
Heat treatment temperature / ℃, tempering : 200 air / water cooling
Hardness under annealing condition ≤ HBW: 197
Tensile strength, Rm ≥ MPa: 980
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (%): 9.0
Reduction of area, Z ≥ (%): 50.0
Impact strength, AK ≥ J: -
Hardness after final heat treatment / HBW: -
Hardness under annealing condition ≤ HBW: 197
Tensile strength, Rm ≥ MPa: 980
Yield strength, Rp0.2 ≥ MPa: 785
Elongation, A5 ≥ (%): 9.0
Reduction of area, Z ≥ (%): 50.0
Impact strength, AK ≥ J: -
Hardness after final heat treatment / HBW: -
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 bar 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 bar 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.
TECHNICAL SALES ASSISTANCE & SERVICE
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.
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.
If you are interested in our products or services, pleased to EMAIL (sales@ccsteels.com) our qualified production engineers.
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