Seamless Cold Drawn Hydraulic Cylinder Honed China tube supplier

Pipe Size

32-406mm

Wall Thickness

3.5-50mm

Length

Random length: 5-12m

Standard

ASTM A53,A106,API 5L

DIN1626,DIN1629,DIN17175,DIN 2448

JIS G3452,JIS G3454,JIS G3455,JIS G3456,JIS G3457,JIS G3461

Material

Q235, 20#, Q345

A53B, A106B, API 5L

ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4

STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49

Application

Low and middle pressure fluid pipeline, boiler, petroleum and natural gas industry, drilling, chemical industry, electric industry, shipbuilding, fertilizer equipment and pipeline, structure, petrochemical, pharmaceutical industry

Surface

Black painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE,etc.

Package

Plastic caps on both ends, Steel bundle, Woven bag or acc. to customers' request

Certificate

API, ISO9001:2008

Capacity

50000tons/year

Advantages

1.Reasonable price with excellent quality

2.Abundant stock and prompt delivery

3.Rich supply and export experience, sincere service

Processing

Cylinder Diameter

Straightness

Size Accuracy

W.T/mm

Inner Bore Roughess

Cold drawn/ Cold rolled

ID30-250

0.3

H9-H11

±10%

0.4~1.6um

Honed tube

ID50-250

0.3

H7-H9

±10%

<0.4um

Material

Tensile strength

Yield strength

Elongation

Hardness

Ck20/20#/AISI1020

>520 N/ mm²

>375 N/mm2

>15%

>85HB

Ck45/45#/AISI1045

>600 N/ mm²

>520 N/ mm²

>15%

>85HB

ST52/16Mn/Q345D

>600 N/ mm²

>520 N/ mm²

>15%

>85HB

25Mn/STKM 13C-T

>600 N/ mm²

>530 N/ mm²

>15%

>85HB

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