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DIN2391 St35 H7 Tolerance 10 Inch Carbon Steel Seamless Honed Tube

China DIN2391 St35 H7 Tolerance 10 Inch Carbon Steel Seamless Honed Tube, Find details about China Honed Tube, Carbon Steel Seamless Honed Tube from DIN2391 St35 H7 Tolerance 10 Inch Carbon Steel Seamless Honed Tube

Thickness
0.1 - 200 mm
Length
2-12m
Delivery Condition
Bk, Bk+S, Gbk, Nbk
Roughness
0.2-0.4 U
Straightness
≤ 0.5/1000
Trademark
Kingmetal
Transport Package
Export Standard Packing
Specification
5 - 500 mm
Origin
China (Mainland)
HS Code
7304399000
Thickness
0.1 - 200 mm
Length
2-12m
Delivery Condition
Bk, Bk+S, Gbk, Nbk
Roughness
0.2-0.4 U
Straightness
≤ 0.5/1000
Trademark
Kingmetal
Transport Package
Export Standard Packing
Specification
5 - 500 mm
Origin
China (Mainland)
HS Code
7304399000

Product Standard:

Our honed hydraulic cylinder tube is usually produced according to norms as ASTM A513, DIN 2391, DIN 1630, DIN 1629, EN 10216-2, A 519, etc on customer's request.

Size Range:

  • Inside diameter from 40 to 1000mm, Max length 8 meters.
  • Straightness: 0.5 /1000
  • Tolerance EXT: DIN 2391
  • Tolerance INT: ISO H8
  • Roughness(Ra): 0.2 to 0.4µ 

Steel Grades We Supply

Carbon steel Honed tubes are available with grades as below:

  • SAE 1020
  • SAE 1026
  • SAE1030/1035
  • E355, E255, E215, E235
  • ST52.3,  St35, ST 52.4, St 37.4

Stainless steel Honed tube can be supplied in grades as below:

  • TP 304 / 304L
  • TP316 / 316L
  • TP 316Ti

Other steel grades of hone tube / honed pipe is available on customer's request.

Type:

  • cold drawing
  • normalizing treatment
  • honing.
Tolerance standard:

Different sizes of ready to use honed tube are available.

ID(mm)TOLERANCE(mm)
H7H8H9H10
<=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 - <=700+0.057/0+0.089/0+0.140/0+0.230/0

This will provide long piston seal life and prevent failure of the cylinder. The tube material is selected on the basis of application & working pressure.

The seamless tube for hydraulic cylinders, obtained from high quality cold drawn tubes, available in a wide dimensional rang

DIN2391 St35 H7 Tolerance 10 Inch Carbon Steel Seamless Honed Tube

Chemical Composition

 

Standard

 

 

Steel Grade

 

 C(%)

Si(%)

Mn(%)

S(%)

P(%)

DIN 2391

St35

≤0.17

≤0.35

≥0.40

≤0.025

≤0.025

St37

≤0.17

≤0.35

≥0.40

≤0.025

≤0.025

St37.4

≤0.17

≤0.35

≥0.40

≤0.025

≤0.025

St45

≤0.21

≤0.35

≥0.40

≤0.025

≤0.025

St44

≤0.21

≤0.35

≥0.40

≤0.025

≤0.025

St52

≤0.22

≤0.35

≥1.60

≤0.025

≤0.025

 

Mechanical Property: 

Standard

Steel Grade

Mechanical Performance

GBK(+A)

NBK(+N)

Tensile

Strength

(Rm mpa)

Elongation

rate

(A5 %)

Tensile

Strength

(Rm mpa)

Yield

Strength 

(Reh mpa)

Elongation

rate

(A5 %)

DIN 2391

St35

≥315

≥25

346-478

≥235

≥25

St37

≥315

≥25

346-478

≥235

≥25

St37.4

≥315

≥25

346-478

≥235

≥25

St45

≥390

≥21

440-570

≥255

≥21

St44

≥390

≥21

440-570

≥255

≥21

St52

≥490

≥22

490-630

≥355

≥22

GUANGZHOU KINGMETAL STEEL INDUSTRY CO., LTD. is an Industry Group Company. It is a professional company in designing, producing and selling steel pipe, pipe fittings, flanges, valves and prefabricated house. We have our own big factories with modern machine line to make high quality products, which is mainly to be exported to oversea markets....

 

We are pure-hearted and awaiting for your kind attention to our company. 

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