Precision steel pipe

Precision steel pipe main material: 10 #, 20 #, 35 #,45 #,40 Cr, 25 mn. 37 mn5, St35 (E235), St37.4, St45 (E255), St52 (E355) light pipe mechanical process performance are excellent, steel pipe can bear high pressure, especially suitable for hydraulic machinery, and automobile air conditioning refrigeration industry. Steel pipe can be cold bending deformation at any Angle, flaring, flattening without cracks, suitable for various bending deformation of steel pipe processing industries.

Commodity name： Precision steel pipe

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Precision steel pipe

PRODUCT DESCRIPTION

Product Parameters

nside Dia (mm)	ID Tolerance (mm)				WT Tolerance (mm)
nside Dia (mm)	H7	H8	H9	H10	WT Tolerance (mm)
≤30	=0.021/0	=0.033/0	=0.052/0	=0.084/0	±7.5%
30 - ≤50	=0.025/0	=0.039/0	=0.062/0	=0.1/0	>210mm ±10%
50 - ≤80	=0.03/0	=0.046/0	=0.074/0	=0.12/0
80 - ≤120	=0.035/0	=0.054/0	=0.087/0	=0.14/0
120 - ≤180	=0.04/0	=0.063/0	=0.1/0	=0.16/0
180 - ≤250	=0.046/0	=0.072/0	=0.115/0	=0.185/0
250 - ≤315	=0.052/0	=0.081/0	=0.13/0	=0.21/0	±7.5%
315 - ≤700	=0.057/0	=0.089/0	=0.14/0	=0.23/0	>210mm ±10%

Steel Grade	Chemical composition %
	C	Si	Mn	P	S	Al
	C	Si	Mn	≤		≥
20#	0.17-0.24	0.17-0.37	0.35-0.65	0.035	0.035	/
45#	0.42-0.50	0.17-0.37	0.50-0.80	0.035	0.035	/
Q345B	≤0.2	≤0.5	1.00-1.60	0.03	0.03	/
Q345D	≤0.2	≤0.5	1.00-1.60	0.03	0.03	0.015
25Mn	0.22-0.29	0.17-0.37	0.70-1.00	0.035	0.035	/
27SiMn	0.24-0.32	1.10-1.40	1.10-1.40	0.035	0.035	/
ST52	≤0.22	≤0.55	≤1.6	0.025	0.025	/
SAE1026	0.22-0.28	0.15-0.35	0.60-0.90	0.04	0.05	/
Delivery Condition	Cold Finished (hard) (BK)	Cold Drawn and Stress-Relieved (BK+S)

Steel Grade	Tensile Strength (Mpa)	Elongation (%)	Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation (%)
20#	≥550	≥8	≥520	≥375	≥15
45#	≥640	≥5	≥600	≥520	≥10
16Mn	≥640		≥600	≥520	≥14
25Mn	≥640		≥600	≥510	≥15
27SiMn	≥800		≥760	≥610	≥10
ST52	≥640		≥600	≥520	≥14
SAE1026	≥640		≥600	≥510	≥15

1.Steel grade: ST52.3, 1020, CK45, 4140 , E355,4130, Duplex 2205, Alloy Steel etc.
2.ID: 2mm-1500mm
3.OD:6mm-1800mm

4.Thickness:max 25mm
5.Length: max 16m
6.Straightness: 0.5/1000 6.Roughness(Ra): 0.2-0.4um

7.ToleranceEXT:DIN2391,DIN17175,DIN1629,ASTM519,ASTMA106,JISG3441,GB/T8163,GB/T3639,GB9948,GB/T5312 etc.
8.Tolerance INT: ISO H8
9.Surface treatment:bright,seamless,galvanized
10.Tolerance:±7%
11.Oiled or unoiled:Slightly Oiled
12.Delivery date:22-30
13.Type: cold drawing, cold rolling, honed
14.Conservation: anti rust oiled inside and outside surface, plastic caps in both ends
15.Package: bundle with steel strip and knitting strip, or wooden case.

Factory appearance

It is a specialized manufacturer and seller of carbon steel, steel bars, stainless steel, galvanized, hot-rolled seamless steel pipes, precision seamless steel pipes, cold drawn seamless steel pipes, alloy pipes, special-shaped pipes, etc.

Application areas

Its products are suitable for various fields such as automobiles, motorcycles, power, machinery, hydraulic accessories, bearings, pneumatic components, oil cylinders, coal mines, conveyors, boiler equipment, pipelines, engineering, etc. Our company has 5 perforation units, 30 precision rolling machines, and 6 cold drawing machines.

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Precision steel pipe