GB/T 16270 High strength structural steel plate

Description: The manufacturing process of GB/T 16270 steel plate includes, UT(ultrasonic inspection), based on "augmented reality" technology (hot rolling), production TMCP(thermal mechanical control treatment), N (normalization), Q+T(tempering), Z direction test (Z ...

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GB/T 16270 High strength structural steel plate description

The manufacturing process of GB/T 16270 steel plate includes, UT(ultrasonic inspection), based on "augmented reality" technology (hot rolling), production TMCP(thermal mechanical control treatment), N (normalization), Q+T(tempering), Z direction test (Z15 Z25, Z35), Charpy V-shaped notch impact test, Burp testing, non-destructive testing, PWHT (simulated post-welding heat treatment),NACE0175, third party testing (e.g. SGS testing), coating or blasting.GB/T16270 steel plates are used in the construction of Bridges, highway construction and other engineering construction. Such as hydraulic support, port cranes, flat transport vehicles and so on.

GB/T 16270 steel chemical components:

Designation	C	Si	Mn	P	S	Cu	Cr	Ni	Mo	B	V	Nb	Ti
Q460C	0.20	0.80	1.70	0.025	0.015	0.50	1.50	2.00	0.70	0.005	0.12	0.06	0.05
Q460D	0.20	0.80	1.70	0.025	0.015	0.50	1.50	2.00	0.70	0.005	0.12	0.06	0.05
Q460E	0.20	0.80	1.70	0.025	0.01	0.50	1.50	2.00	0.70	0.005	0.12	0.06	0.05
Q690C	0.20	0.80	1.80	0.025	0.015	0.50	1.50	2.00	0.70	0.005	0.12	0.06	0.05
Q690D	0.20	0.80	1.80	0.025	0.015	0.50	1.50	2.00	0.70	0.005	0.12	0.06	0.05
Q690E	0.20	0.80	1.80	0.020	0.01	0.50	1.50	2.00	0.70	0.005	0.12	0.06	0.05

GB/T 16270 steel mechanical property:

Designation	Yield strength			Tensile strength			Elongation
Designation	≤50	50-100	100-150	≤50	50-100	100-150	%
Q460C	460	440	400	550-720		500-670	17
Q460D	460	440	400	550-720		500-670	17
Q460E	460	440	400	550-720		500-670	17
Q690C	690	650	630	770-940	760-930	710-900	14
Q690D	690	650	630	770-940	760-930	710-900	14
Q690E	690	650	630	770-940	760-930	710-900	14

GB/T 16270 standard equivalent to

EN	DIN,WNr	JIS	AFNOR	BS	EN(old)	IS	GB
S460N	StE460	SM520B	E460R	55C	FeE460KGN	FeE460KGN	E460

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