GB/T 3077 20Cr alloy steel plate

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10-May-2024

There are many clients of GB/T 3077 20Cr steel plate to seek the Professional exporter of GB/T 3077 20Cr steel plate . KUNFENG is Professional exporter of GB/T 3077 20Cr steel plate. we have rich experience in supplying GB/T 3077 20Cr steel plate. Please take some time to know us if you are looking for the Professional exporter of GB/T 3077 20Cr steel plate.

GB/T 3077 20Cr steel plate Chemical composition (Mass fraction) (%)

Carbon C: 0.18 ~ 0.24

Silicon Si: 0.17 ~ 0.37

Manganese Mn: 0.50-0.80

Cr: 0.70 ~ 1.00

Sulfur: allow residual content ≤ 0.035

Phosphorus P: allowable residual content ≤ 0.035

Nickel Ni: Allowable residual content ≤ 0.030

Copper Cu: allow residual content ≤0.30

Equivalent standard of GB/T 3077 20Cr steel plate reference

China GB standard steel 20Cr

Japan JIS standard steel SCr22

Germany DIN standard steel 20Cr4

British BS standard steel 590M17

France NF standard steel 18C3

US AISI / SASTM standard steel 5120

ISO standard steel No. 20Cr4

GB/T 3077 20Cr steel plate Heat treatment

The first quenching heating temperature (℃): 880; coolant: water, oil
The second quenching heating temperature (℃): 780 ~ 820; Coolant: water, oil
Tempering heating temperature (℃): 200; coolant: water, empty
Tensile strength (σb / MPa): ≧ 835
Yield point (σs / MPa): ≧ 540
Elongation at break (δ5 /%): ≧ 10
Section shrinkage (ψ /%): ≧ 40
Impact energy (Aku2 / J): ≧ 47
Brinell hardness (HBS100 / 3000) (annealing or tempering temperature): ≦ 179

Rolling Size of GB/T 3077 20Cr steel plate KUNFENG supplied, the bellow rolling size is we can supply with rich experience of GB/T 3077 20Cr steel plate

Thickness： 3-250mm
Width： 1220-4200mm
Length; 5000-18000mm
Notes: coil thickness ≤ 25m

GB/T 3077 20Cr steel plate Delivery Status

To heat treatment (normalizing, annealing or tempering) or non-heat treatment delivery, delivery status should be specified in the contract. Welcome your enquiry if you are looking for the supplier of GB/T 3077 20Cr steel plate. GB/T 3077 20Cr steel plate can be supplied with high quality and good price by shanghai KUNFENG industry.