factory supply carbon steel tube hard chromed plated piston rod

Production

Standard

ASTM ,DIN, EN, GB, JIS, AISI ,etc.

Out Diameter

30mm-250mm

Wall Thickness

2mm-30mm

Material

10#-45#,16Mn ,st35-st52,q345,etc.

 Length

1-12m or as customers required

Surface treatment

Black painting, black varnish, transparent oil, epoxy coating, etc,  or according to the customer’s acquirement  

 Technique

Seamless ,DOM

 Usage

 1.hydraulic cylinder

 2.  automobile

 3.  oil drilling

 4.   textile machinery

 5. printing machinery

 6.  engineering machinery

 Package

 1.  Bundle packing.

 2.  Beveled end or plain end or vanished as buyer's required.

 3.  Marking: as per customer's requests.

 4.  Painting varnish coating on the pipe.

 5.  Plastic caps at ends.

 Supply

 1.  Seamless steel pipe

 2.  cold drawn seamless steel tube

 3.  cold rolled seamless steel tube

 4.  hot-rolled steel pipe

5.hydraulic cylinder steel tube

6.DOM tube

Min Order Quantity

According to customer's requirement

Payment terms

L/C, T/T, 

OD x WT

OD x WT

OD x WT

OD x WT

4*0.5

16*0.5

26*1.8

35*9.0

4*0.8

16*0.8

26*2.0

35*10

4*1.0

16*1.0

26*2.2

38*0.5

4*1.2

16*1.2

26*2.5

38*0.8

5*0.5

16*1.5

26*2.8

38*1.0

5*0.8

16*1.8

26*3.0

38*1.2

48*5.0

70*2.8

90*10

130*14

48*5.5

70*3.0

90*12

130*16

48*6.0

70*3.5

90*14

130*18

48*7.0

70*4.0

90*16

140*2.5

48*8.0

70*4.5

95*2.0

140*2.8

48*9.0

70*5.0

95*2.2

140*3.0

ID size

ID deviation (mm)

H7

H8

H9

H10

30

+0.021

0

+0.033

0

+0.052

0

+0.084

0

>30~50

+0.025

0

+0.039

0

+0.062

0

+0.100

0

>50~80

+0.030

0

+0.046

0

+0.074

0

+0.120

0

>80~120

+0.035

0

+0.054

0

+0.087

0

+0.140

0

>120~180

+0.040

0

+0.063

0

+0.100

0

+0.160

0

>180~250

+0.046

0

+0.072

0

+0.115

0

+0.185

0

>250~315

+0.052

0

+0.081

0

+0.130

0

+0.210

0

>315~400

+0.0527

0

+0.089

0

+0.140

0

+0.230

     Application

Cold drawn or cold rolled precision seamless steel tubes for hydraulic pressure and pneumatic services.

For Auto use,machinery use,oil cylinder tube,motorcycle shock reducer use,

auto shock reducer inner cylinder,gas spring use etc.

Seamless steel pipes for low and medium pressure boiler, high pressure boiler, 

ship-building,Liquid service, petroleum cracking, chemical fertilizer equipment,Drawing-oil-equipment and structure purposes.

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)

9.Impact Test (optional)

10.Grain Size Determinations (optional)

NOTES : ALL THE TESTS AND INSPECTION RESULT NEED TO BE SHOWED IN REPORTS ACCORDING TO STANDARD AND SPECIFICATION.