Product Details

01/ ABOUT OUR PRODUCT

Product Item	Competitive price Cold drawn seamless steel tube
Outer Diameter	30mm~250mm
Wall Thickness	2mm~30mm
Material Grade	10#-45#, 16Mn, Q195-Q345, ST35-ST52, STB35STB42, 20#, 45#, 16Mn, Q345, ST35, St45, St52, St52.4, STB42, 16Mn,St52,10#-45#,ST35-ST52
Standard	ASTM, DIN, ASTM A1020-2002, DIN 2391
Application	Hydraulic Pipe, Hydraulic cylinder, automobile, oil drilling, textile machinery
Certificate	ISO9001:2008
Process Method	Cold Drawn/ Cold Rolled

ABOUT SOME DIMENSIONS

*4050**	*90110**	*140170**	*190215**
*4055**	*95110**	*145170**	*190220**
*5060**	*95115**	*150170**	*190225**
*5065**	*100110**	*150175**	*200220**
*5570**	*100114**	*150180**	*200225**
*6070**	*100115**	*155180**	*200230**
*6075**	*100120**	*160175**	*200245**
*6078**	*100125**	*160180**	*200250**
*6373**	*105125**	*160185**	*220250**
*6375**	*110125**	*160190**	*220270**
*6376**	*110130**	*160195**	*225250**
*6378**	*115130**	*165190**	*240273**
*6580**	*115135**	*165205**	*250290**
*7080**	*120140**	*170200**	*250300**
*7082**	*125140**	*180200**	according to customer's need
*7085**	*125145**	*180205**
*7090**	*125150**	*180210**
*7590**	*130150**	*180215**
*8092**	*130155**	*180220**
*8095**	*130160**	*185205**
*80100**	*135160**	*185215**
*85100**	*140160**	*185220**
*90105**	*140165**	*190210**

ABOUT TOLERANCE

ID size

ID deviation (mm)

+0.021

+0.033

+0.052

>30~50

+0.025

+0.039

+0.062

>50~80

+0.030

+0.046

+0.074

>80~120

+0.035

+0.054

+0.087

>120~180

+0.040

+0.063

+0.100

>180~250

+0.046

+0.072

+0.115

02/ABOUT OUR COMPANY

we are the top 5 manufacture of precision seamless steel tube in China ,we have passed ISO 9001 verified certificate , and our company mainly produces various specification cold finished steel tube .which are widely used in hydraulic cylinder .automobile ,oil drilling ,textil machinery ,and so on ,if you are interested in our product welcome to our company to visiting and negotiate .

Our Process

testing

1.100% PMI,Spectro Chemical Aanlysis Test for Raw Material

2.100% Dimension & Visual Examination

3. Mechanical Properties Test Include Tension Test,Flaring Test (For Seamless tube/pipe)/

Flange Test (For Welded Pipe & Tube), Hardness Test ,Reversed Flattening Test

4.100% Hydrostatic Test or 100% NON-DESTRUCTIVE Test (ET or UT)

5.Radiographic Test for Welded Pipe (shall be accordance with specification,

or shall be as agreed upon between the purchaser and vendor)

6.Straightness Test (optional)

7.Roughness Test (optional)

8.Intergranular Corrosion Test(optional)