Material 40Cr is a Chinese steel grade in GB standard, and material 40Cr is one of the most widely used steels in mechanical manufacturing industry. After quenching and tempering, material 40Cr can get good comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity. The price of material 40Cr is moderate and it is easy to process. After proper heat treatment, material 40Cr can obtain certain toughness, plasticity and wear resistance. The hardenability of material 40Cr is higher than that of 45# steel, and it is suitable for high frequency quenching, flame quenching and other surface hardening treatment.
Material 40Cr equivalent steel grades are: German DIN standard material No. 1.17035/1.7045, German DIN standard steel grade 41Cr4 / 42Gr4, British EN standard steel grade 18, British BS standard steel grade 41Cr4, French AFNOR standard steel grade 42C4, French NF standard steel grade 38Cr4 / 41Cr4, Italy UNI standard steel grade 41Cr4, Belgium NBN standard steel grade 42Cr4, Sweden SS standard steel grade 2245, American AISI / SAE / ASTM standard steel grade 5140, Japanese JIS standard steel grade SCr440 (H) / SCr440, American AISI / SAE / ASTM standard steel grade 5140, ISO standard steel grade 41Cr4, etc.
For more information about 40Cr and other alloy steel grades, welcome to consult BBN steel, the world class steel and fabrication service provider.
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