Product

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4340

China's GB steel number: 40CrNiMoA, German DIN steel number 36 CrNiMo4, German DIN material number 1.6511, French NF standard 40NCD3, Japanese JIS standard SNCM439, British BS standard 816M40, American AISI/ASTM4340, and American UNS standard G43400.

 

Feed No.

chemical composition

OSF

Density

C

Cr

Mo

Ni

Si

Mn

Fe

FDC4340MA

0.38-0.42

0.80-1.10

0.15-0.25

1.65-2.00

0.15-0.35

0.75-1.00

Ball

1.216

≥ 7.50