GB/T700 Q275A/B/C/D steel

Q275A/B/C/D steel is carbon structural steel.

Q275A/B/C/D steel used in the manufacture of the anchor bolts, pipe, roof panel, rivets, low carbon steel wire, sheet, welded tube, rod, hook, bracket, the welding structure.

Q275A/B/C/D steel condition of delivery:Hot rolling, controlled rolling and normalizing.

GB/T700 Q275A/B/C/D material chemical composition,% max

Grade	Level	C	Si	Mn	P	S
Q275	A	0.24	0.35	1.50	0.045	0.050
	B	0.21			0.045	0.045
	C	0.20			0.040	0.040
	D	0.20			0.035	0.035

GB/T700 Q275A/B/C/D carbon structural steel mechanical properties

Grade	Level	Yield strength,ReH,N/mm2,min						Tensile strength,Rm N/mm2	Elongation,min,%					Impact test
		Thickness,mm							Thickness,mm					Temperature oC	Impact energy,min
		≤16	16-40	40-60	60-100	100-150	150-200		≤40	40-60	60-100	100-150	150-200
Q275	A	275	265	255	245	225	215	410-540	22	21	20	18	17	...	...
	B													+20	27
	C													0
	D													-20

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