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SCM420 hot rolled round bars and forged round bars

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  • 11-May-2024

SCM420 hot rolled round bar

SCM420 Round bar is alloy structural round bar under the standard of JIS G4053-2003. SCM420 alloy structural round bar has High harden ability and No temper brittleness,Weldability is quite good.which is widely used in High pressure pipe and all kinds of fasteners, the higher the carburized parts, such as gear, shaft, etc.

The delivery condition SCM420 round bar are:hot rolled or forged + Normalizing+Tempering+Quenching and tempering+Normalizing and tempering+Annealing .
The size for SCM420 round bar which available for our KUNFENG steel are Ф 5-80 for hot rolled round bar and Ф 80-1200 for forged round bar ,the length range is from 3000 to 12000mm.
The tolerance of the diameter is -0/+3mm ,The tolerance of the length is -0/+20mm.and the straightness tolerance is ≤3mm/m
surface delivery status: black/polishing/turning
UT standard are Chinese standard of GB/T 6402 I.II,III and export standard SEP1921 CLASS C/C,D/D,E/E.

SCM420 hot rolled and forged round bar Chemical composition :


GRADE

C%

Si%

Mn%

P%

S%

Cr%

Cu%

Ni%

Mo

SCM420

0.18~0.23

0.15~0.35

0.60~0.90

0.030

0.030

0.90~1.20

0.03

0.25

0.15~0.25

SCM420 hot rolled and forged round bar Mechanical properties


GRADE

Tensile Strength min

Yield Strength min

Elongation min.

contraction min

impact min

Hardness Max

σb/MPa

σs/MPa

δ5/%

ψ/%

Aku2/J

HBS

SCM420

885

685

12

50

78

197

As the professional SCM420 hot rolled round bars and forged round bars supplier in China. KUNFENG will supply you SCM420 hot rolled round bars and forged round bars with good quality and complete after-sale service and the lowest price. We committed to exceed customer’s expectation on the basis of quality, price, and delivery. We sincerely hope to establish long-term cooperation relations with you on the basis of mutual benefit, reciprocity and common development. So if you need any help ,please be free to contact us.We will give you the best quote of SCM420 hot rolled round bars and forged round bars .

Tags: SAE1345, SACM645, S7

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