40cr Cold Drawn Precision Seamless Steel Pipe for Mechanical Processing

• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel, Alloy Steel, Stainless Steel
• Surface Treatment: Pickling
• Usage: Pipeline Transport, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• Model NO.: 40Cr seamless steel pipe
• Outer Diameter: 18mm~416mm
• Wall Thickness: 0.8mm~20mm
• Length: 6meters, 9meters, 12meters, Random Length
• Surface: Pickling, Anti-Rust Painting
• Transport Package: Bundled, Wrapped, Wooden Cased.
• Specification: ASTM A213, A312, etc
• Trademark: Iron&steel
• Origin: China
• HS Code: 73041990
• Production Capacity: 100 Tons Per Month

Product Description

40cr Cold Drawn Precision Seamless Steel Pipe for Mechanical ProcessingWe are professional manufacturer of cold drawn seamless steel pipe  in China. Our seamless steel pipe 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 pipe:
1.       Smaller caliber
2.       Accept small qty order
3.       Good surface treatment
4.       The pipe with superior performance, suitable for mechanical making



Chemical Composition of seamless steel pipe

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 pipe

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