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P20
Q/BQB 135:2005

China · Baosteel Q/BQB

P20

Q/BQB 135:2005 — Q/BQB 135

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Standards

Q/BQB 135:2009Q/BQB 135
Q/BQB 135:2005Q/BQB 135

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Chemical composition

Element	min	max	Similar	Remarks
C	0.28	0.4
Cr	1.4	2
Mn	0.6	1
Mo	0.3	0.55
P		0.03
S		0.03
Si	0.2	0.8

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