1.Type:seamless steel pipe
2.Absolute high quality
3.ISO9001:2008
Min Order:20 tons FOB Price:500-1000 USD/TONS.

type	Outer diameter (D)		Wall thickness(S)
cold drown	OD(mm)	Allowable deviation (mm)	Wall thickness(mm)	Allowable deviation (mm)
	30~50	±0.3	30	±10%
	50~219	±0.8%
hot rolled	219	±1.0%	20	±10%
Mechanical Propert
standard	grade	Tensile strength (MPa)	Yield strength(MPa)	Elongation(%)
GB/T8163	10	335~475	205	24
	20	410~550	245	20
	Q345	490~665	325	21
Chemical composition
standard	grade	Chemical Composition(%)
		C	Si	Mn	P	S	Cr	Ni	Cu
GB/T8163	10	0.07~0.14	0.17~0.37	0.35~0.65	0.035	0.035	0.15	0.25	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
	Q345	0.12~0.20	0.20~0.55	1.20~1.60	0.045	0.045	/	/	/