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流體輸送用無縫鋼管

標準	外徑公差		壁厚公差
GB/T8163-2008	D<50mm	±0.50mm	+15/-12.5%	最小：+0.45mm
	D≥50mm	±1%
最�。�-0.40mm

標準	牌號	抗拉強度 (MPa)	屈服強度(MPa) ≥		延伸率(%) ≥
			≤16	>16mm
GB/T8163-2008	10	335-475	205	195	24
	20	410-550	245	235	20
	Q295	430-610	295	285	22
	Q345	490-665	325	315	21

標準	牌號	C	Si	Mn	P≤	S≤	Ni≤	Cu≤	Cr≤
GB/T8163-2008	10	0.07-0.14	0.17-0.37	0.35-0.65	0.035	0.035	0.25	0.15	0.25
	20	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	0.25	0.25	0.25
	Q295 A	≤0.16	≤0.55	0.80-1.50	0.045	0.045	0.30	0.30	0.30
	Q295 B	≤0.16	≤0.55	0.80-1.50	0.040	0.040	0.30	0.30	0.30
	Q345 A	≤0.20	≤0.55	1.00-1.60	0.045	0.045	0.30	0.30	0.30
	Q345 B	≤0.20	≤0.55	1.00-1.60	0.040	0.040	0.30	0.30	0.30
	Q345 C	≤0.20	≤0.55	1.00-1.60	0.035	0.035	0.30	0.30	0.30
	Q345 D	≤0.18	≤0.55	1.00-1.60	0.030	0.030	0.30	0.30	0.30
	Q345 E	≤0.18	≤0.55	1.00-1.60	0.025	0.025	0.30	0.30	0.30

89*4-4.5-5-5.5-6-6.5-7-7.5-8-9-10-11-12-12.5.-13-14

95*4-4.5-5-5.5-6-7-8-9-10-11-12.5-14-16

102*4-4.5-5-5.5 -6-7-8-9-12

108*4-4.5-5-5.5-6-6.5-7-8-9-10-11-12-12.5-14-16-20

114*4.5-5-5.5-6-7-8-9-10-11-12.5-13-14-15-16

121*4-4.5-5-5.5-6-7-8-8.8-10-11-12.5-14.2-16-18-20

127*4.5-5-5.5-6-7-7.5-8-9-10-11-12.5-14-16-18-20

133*4.5-5-5.5-6-7-8-9-10-11-12.5-14-16-18-20

140*5-6-7-8-10-12-14-16-18-20

159*4.5-5-5.5-6-7-8-9-10-12-12.5-14-16

168*5.5-6-6.5-7-8-9-9.5-10-11-12-13-14-16-18-19-20

219*6-6.5-7-8-9-10-11-12-13-14-15-16-17-18

273*6.5-7-8-9-9.5-10-11-12-13-14-15-16-18-20

325*7-8-8.5-9-10-11-12-13-14-15-16-17-18-20

356*8-9-9.5-10-11-12-13-14-15-16-18-19

377*8-9-9.5-10-11-12-13-14-15-16-18-20

406*8-9-9.5-10-11-12-13-14-16-17-18

426*8-9-9.5-10-11-12-13-14-15-16-17-18

457*9-9.5-10-11-12-13-14-15

480*9-9.5-10-11-12-14