Cold Rolling/Cold Drawing Seamless Steel Pipe Carbon Steel Pipe

• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel, Alloy Steel, Stainless Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Model NO.: seamless steel tube
• Outer Diameter: 18mm~114mm
• Wall Thickness: 0.8mm~20mm
• Length: 6meters, 9meters, 12meters, Random Length
• Surface: Annealing Bright
• Transport Package: Bundled, Wrapped, Wooden Cased.
• Specification: DIN2391, GB/T8182, GB/T3639
• Origin: China
• HS Code: 73041990
• Production Capacity: 100 Tons Per Month

Product Description

We are professional manufacturer of cold rolled seamless steel tube in China, our seamless steel tube with very high precision of size.
Standard: GB/T8162, GB/T8163, GB/T3639, DIN2391-2
Steel material: 20#(AISI 1020/DIN1.0402 C22), 45#(ASTM 1045,DIN45), 20Cr, Q345B, etc
Technique: Cold rolling
OD: 21mm~416mm
Wall thickness: 0.8mm~20mm
Toleraance of size: ±0.1mm(outer diameter).
Usage: widely used for mechanical processing, Automobile industry, hydraulic equipments
Advantages of our high precision seamless steel tube:
1.       Smaller caliber
2.       Accept small qty order
3.       Good surface treatment
4.       The pipe with superior performance, suitable for mechanical making
Perfect surface treatment

Chemical Composition seamless steel tube

Material	Chemical composition (%)
	C	Mn	P	S	Si	Ni	Cu
20# AISI 1020	0.17~0.23	0.35~0.65	≤0.035	≤0.035	0.17~0.37	≤0.3	≤0.25
45# ASTM1045, DIN45	0.42~0.5	0.5~0.8	≤0.04	≤0.045	0.17~0.37	≤0.25	≤0.25

Mechanical Properties of seamless steel tube

Steel material	Tensile Strength Mpa	Yield strength Mpa	Elongation %	Hardness	Straightness
20#	≥510	≥245	≥25	≤156HB	0.3~1.0
45#	≥647	≥355	≥16	≤HRC62	0.3~1.0