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ERW welded steel pipe

Views: 0     Author: Site Editor     Publish Time: 2022-02-18      Origin: Site

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ERW welded steel pipe 

Q195 Q235 Q355 are main material of square tubes.

Q195 = S195 / A53 Gr. A
Q235 = S235 / A53 Grade B / A500 Gr. A / STK400 / SS400 / ST42.2
Q355 = S355JR / A500 Grade B Grade C

The standard ASTM A500 ASTM A53,Grade A,Grade B,Grade C.


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