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Forged steel sections – Shanghai Rainbow Industrial Co.,Lltd | all.biz
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Forged steel sections
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Forged steel sections

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Technical characteristics
  • BrandRainbow
Description

Dimensions and tolerances, shape

 

Nominal diameter * nominal length

20×25

25×35

30×40

30×45

35×45

45×50

50×60

Allowable deviation of diameter

±2

±2

±2

±3

±3

Length allowable deviation

±1.5

±2.5

±3

±3.5

±3.5

 

 

Steel section of the above specifications, surface hardness: HRC:60-65 degrees, central hardness: HRC:60-65 degrees

 

name

Chemical composition (mass fraction)

C

Si

Mn

Cr

Mo

Cu

P

S

Medium carbon alloy steel section

0.45-0.65

0.3-1.9

0.5-1.5

1.0

0.2

0.20

0.030

0.030

High carbon alloy steel section

0.7-0.95

0.2-0.75

0.5~1.0

0.05~0.8

0.2

0.20

0.030

0.030

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