En10305-1 Cold drawn seamless black steel tube with stress relieved
En10305-1 Cold drawn seamless black steel tube with stress relieved
En10305-1 Cold drawn seamless black steel tube with stress relieved
En10305-1 Cold drawn seamless black steel tube with stress relieved
En10305-1 Cold drawn seamless black steel tube with stress relieved

En10305-1 Cold drawn seamless black steel tube with stress relieved

USD $800 - $900 /Metric Ton

Min.Order:10 Metric Tons

Supply Ability:
300 Metric Ton / Metric Tons per Month
Port:
Qingdao/Yantai
Payment Terms:
T/T

Quick Details View All >

Thickness:
2, 30
Section Shape:
Round
Outer Diameter:
30 - 250 mm
Place of Origin:
Shandong, China
Secondary Or Not:
Non-secondary
Application:
Hydraulic Pipe

Yantai Xinpeng Steel Pipe Co., Ltd.

Business Type: Manufacturer,Trading Company
Yantai Shandong China
Main Products: hydraulic tube ,precision tube ,honed tube ,mechanical tube ,cold finished tube

Product Details

Product Name: En10305-1 Cold drawn seamless black steel tube with stress relieved

Company Information

 Company Information:

Yantai Xinpeng Steel Pipe Co,.Ltd. is one of the best suppliers of the precision tube and hydraulic cylinder tube in North of China. Since 2002 Cold drawn machine set importing, Xinpeng become a big precision steel pipe manufacture with 500Mt month productivity in the next 12 years.

Products widely used in the hydraulic cylinder of the heavy machinery, Cranes, excavator, forklifts and the Petrol industry.

  1. Hydraulic Cylinder Tube------Main products of Xinpeng,

Used in the hydraulic cylinder of the heavy machinery, Cranes, excavator also forklifts. Material is various, mainly STKM-13CT ST52 CK45 and 1020. We can work and get the mechanical property of the clients need and extended the life of the hydraulic cylinder.

  1. SRB tube ----- used in Elevatorbuffer and Hydraulic Cylinder .This kind tube have a better roughness inner the tube, ra0.2-0.4um and can use directly in the hydraulic cylinder tube. Range: ID 50-250mm and Length can work at most 6M.
  2. Cold finished tube---- Widely Used. Processing range 30-300mm, biggest length is 11M.

Xinpeng Have passed ISo9001 verified from 2008; each tube of ours is strictly in quality control that can assure the product quality of Xinpeng

En10305-1 Cold drawn seamless black steel tube with stress relieved

Product Introduction: 

hydraulic cylinder tube st52 din2391 is a kind of after cold rolling processing of a kind of high precision steel tube, full name cold rolled precision seamless steel tube. Precision seamless steel tube wall inside and outside the precision seamless steel pipe seamless steel pipe without oxidation layers, under high pressure without lea, high precision, high finish, cold bending deformation, flaring, flattening without cracks, etc. It is mainly used to produce pneumatic or hydraulic components products, such as a cylinder or cylinder, are made seamless tube. The chemical composition of precision seamless steel tube with carbon sulfur C, Si, Mn, S, P, Cr.

The difference between precision steel pipe and seamless pipe:

1. The seamless steel tube with obvious difference is that dimensional accuracy can be up to 0.1mm.

2. High precision steel pipe diameter surface finish, the customer without processing can be used directly and ordinary seamless steel tube to the customer and lather, polishing processing.

Features:

hydraulic cylinder tube st52 din2391  inside and outside the wall without oxidation layer, under high pressure, no leakage, high precision, high finish, cold bending deformation, flaring, flattening without cracks, surface rust proofing

1. The smaller outer diameter

2. High precision to do small batch production

3. Cold drawn finished products of high precision, good surface quality

4. The steel pipe transverse area is more complex

5. Steel pipe is superior performance, dense metal

 

Honed tube (Roughness of tube is 0.2μm and straightness is less than 0.15/1000), Product details are completely according to International Standard, (Most of domestic mills don’t do this in order to reduce cost)

En10305-1 Cold drawn seamless black steel tube with stress relieved

Specification: 

Standard

DIN2391, DIN2445, EN10305, GB/T 3639, GB 8713

Grade

ST35(E235), ST37, ST24(E255), ST52(E355), 10#, 20#, 35#, 45#

O.D.

30MM-400MM

W.T.

2MM-30MM

Surface Treatment

bare, varnished, oiled, anti-corrosion coating as request

Packing

1. bundle packing

2. marking as per customer's requests

3. paint on the pipe as per customer request

4. pipe caps as customer request

Condition of Delivery

1. NBK(+N)

after cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium

2. GBK(+A)

after cold forming, annealing in non oxidizing medium protective gas

3. BK(+C)

the final heat treatment after cold forming, therefore small steel pipe plastically, the plastically degree does not guarantee

4. BKW(+LC)

after final heat treatment, a tiny cold drawing deformation, continue again when machining steel pipe allowed inside certain limits cold deformation(bending, flaring)

5. BKS(+SR)

have a stress relief after cold forming, heat treatment, steel pipe can be carried out within a certain limit in the appropriate processing again

Tolerance in Dimension:

OD

GB/T3639(GB8713)

DIN2391(EN10305)

Our Tolerence

Best Quality

4-30mm

±0.10mm

±0.08mm

±0.05mm

±0.02mm

31-40mm

±0.15mm

±0.15mm

±0.05mm

±0.03mm

41-50mm

±0.20mm

±0.20mm

±0.05mm

±0.03mm

51-60mm

±0.25mm

±0.25mm

±0.08mm

±0.03mm

61-70mm

±0.30mm

±0.30mm

±0.10mm

±0.05mm

71-160mm

±0.30mm

±0.30mm

±0.10mm

±0.05mm

Tolerance in WT

±0.12mm

±0.10mm

±0.05mm

±0.03mm

 

    

Process

Diameter

Length

Precision

Inner Hole Roughness

Cold Rolled

30-100mm

≤12 m

H8-H10

0.4-1.6

Cold Draw

30-250mm

≤12 m

H8-H10

0.8-1.6

Honing

40-500mm

≤12 m

H8-H9

0.4-0.8

Rolling

40-400mm

≤7 m

H8

0.4

 

 

 

 

 

Inner Diameter

H8

H9

H10

 

30mm

±0.033

±0.052

±0.084

5-30mm

30-50mm

±0.039

±0.062

±0.100

±0.080

50-80mm

±0.046

±0.074

±0.120

 

80-120mm

±0.054

±0.087

±0.140

 

120-180mm

±0.063

±0.100

±0.160

 

180-250mm

±0.072

±0.115

±0.185

 

250-315mm

±0.081

±0.130

±0.210

 

315-400mm

±0.089

±0.140

±0.230

 

 

Product Process 

En10305-1 Cold drawn seamless black steel tube with stress relieved

Step 1 PICKLING- PHOSPHATING- Saponification

En10305-1 Cold drawn seamless black steel tube with stress relieved

Step 2 cold rolled/Drawn

En10305-1 Cold drawn seamless black steel tube with stress relievedEn10305-1 Cold drawn seamless black steel tube with stress relieved

Step3 Stress relieved/ Annealed /BKS

En10305-1 Cold drawn seamless black steel tube with stress relieved

Step4 Straightening

En10305-1 Cold drawn seamless black steel tube with stress relieved

Step5 straightness testing

En10305-1 Cold drawn seamless black steel tube with stress relieved

Size and tolerance testing

En10305-1 Cold drawn seamless black steel tube with stress relieved

Srb or honed 

En10305-1 Cold drawn seamless black steel tube with stress relieved

Product testing  ( mechanical property testing, hardness , UT test ) All the tubes of ours can assure 100% UT test

En10305-1 Cold drawn seamless black steel tube with stress relieved

 

 

 

Packaging & Shipping

 

 

product package: 1.Standard packing with plastic caps and strapped bundles2. Wooden package 

3.according to customer's request.

 

 

 

FAQ

 

Application:

hydraulic cylinder tube st52 din2391 widely used in hydraulic system with precision steel tube, injection molding machine with precision steel tube, hydraulic press with precision steel tube, shipbuilding with steel tube, EVA foaming, hydraulic machinery, hydraulic cutting machine, shoe making machinery, hydraulic equipment, high pressure tubing, hydraulic tubing, card sets of joints, pipe joints, rubber machinery, forging machinery, casting machinery, engineering machinery, automotive high pressure steel pipe concrete pump, sanitation vehicle, automobile industry, shipbuilding industry, metal processing, military industry, diesel engine, the internal combustion engine, air compressor, construction machinery, forestrymachinery, etc.

En10305-1 Cold drawn seamless black steel tube with stress relieved


Xinpeng Have Passed ISo9001 2008 verified

En10305-1 Cold drawn seamless black steel tube with stress relieved

 

 HONED AND SRB TUBE

 

En10305-1 Cold drawn seamless black steel tube with stress relievedAbout our service:

1. Cargo track service during transporting and feedback service after cargo is loaded on board

2. Flexible terms of payment by

3. Big discount for repeat customers

4. Smooth delivering procedure

5. Payment Terms: T/T , L/C And so on.

If there is any Question, please feel free to send us inquiry.

We will provide the professional Explanation.

We always do our Best!

 

Why you choose us as your best choice?

 

 

Contact Supplier

Ms. Judy Gao General Manager Chat Now
Telephone
0086-535-6835398
Mobile
86-18953537620
Fax
0086-535-6835383
Address
2th,Binglun Road,APEC Technology Industrial Park,Zhifu District,Yantai City Yantai,Shandong

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