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420J2

420 stainless steel, similar to Brinell high chromium steel this earliest stainless steel. 420 has a certain wear resistance and corrosion resistance, high hardness, its price is a lower class of stainless steel ball, suitable for stainless steel general requirements of the working environment. 420 stainless steel is suitable for all kinds of precision machinery, bearings, electrical, equipment, instruments, meters, transportation tools, household appliances, etc. More used in the manufacture of atmospheric, water vapor, water and oxidizing acid corrosion parts.

 

Feed No.

chemical composition

OSF

Density

C

Cr

Ni

Si

Mn

S

P

Fe

FDC420W

0.30-0.40

12.0-14.0

≤ 0.75

≤ 1.00

≤ 1.00

≤0.03

≤0.045

Ball

1.167

≥ 7.60

FDC420MA

0.30-0.40

12.0-14.0

≤ 0.75

≤ 1.00

≤ 1.00

≤0.03

≤0.045

Ball

1.216

≥ 7.60