Carbon Steel Seamless Pipes
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Carbon Steel Seamless Pipes

Top quality: with all necessary tests as relative standards: Hydrostatic test, X-ray, Eddy current, FPI, FLT, UT, impact Energy, etc.
Punctual Delivery: Large inventory of 30,000 tons per year for standard sizes to meet your urgent needs.
Competitive prices: Direct manufacturer and15 years’ experience guarantee most competitive prices
Excellent services after sale: professional team of sales and engineers offers you the most reasonable scullions, to answer your troubles/complain timely if any. Certificates to be furnished for all pipes as EN10204-3.1B
H.S.Code:7304

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Product Introduction

We are China Carbon Steel Pipe Factory. Seamless steel pipes are made by heat penetrating technology, raw material the solid billet goes through a piercing rod to create the hollow section without any welding or seam.

OD:φ21.3mm~φ660mm (1/2''~ 26'');
WT: 2.5mm~60m;
Length: 5.8m~12m;
Material: CS,LTCS AND AS

Dimension Toleranceof seamless steel pipes as standard ASTM A106/A106M

OD	Permissible Variations in Outside Diameter*
NPS (DN)	Over			Under
	In.	mm	In.			mm
1/8 to 1-1/2 (6-40)	1/64 (0.015)	0.4	1/64 (0.015)			0.4
Over 1-1/2 to 4 (40-100)	1/32 (0.031)	0.8	1/32 (0.031)			0.8
Over 4 to 8 (100-200)	1/16 (0.062)	1.6	1/32 (0.031)			0.8
Over 8 to 18 (200-450)	3/32 (0.093)	2.4	1/32 (0.031)			0.8
Over 18 to 26 (450-650)	1/8 (0.125)	3.2	1/32 (0.031)			0.8
Over 26 to 34 (650-850)	5/32 (0.156)	4.0	1/32 (0.031)			0.8
Over 34 to 48 (850-1200)	3/16 (0.187)	4.8	1/32 (0.031)			0.8
Thickness	+/-12.5%
Length	SRL	16-22ft (4.8-6.7m); min 4.5m
	DRL	Average 35ft (10.7m), min 6.5m
End Finish	≤1-1/2'' (DN40)	PE or BE (at 30°-35°)
	≥2'' (DN50)	Schedule to XS			BE at 30°-35°
		Schedule over XS			PE
Root face for BE ends	1/16'' +/-1/32'' (0.8mm - 2.4mm)

*Except for pipe ordered as special OD tolerance or as inside diameter tolerance pipe.
*For pipe over 10'' (250mm) OD ordered as special OD tolerance pipe, OD tolerance +/-1% of specified OD
*For pipe over 10'' (250mm) ID ordered as ID tolerance pipe, the ID tolerance +/-1% of specified ID

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