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Quick Details

  • Standard: ASTM, DIN, GB, ASTM A513-2007, DIN 2391, DIN EN 10305, GB/T 3639-2000
  • Grade: 10#-45#, ST35-ST52, 10#, 20#, 45#, ST35, St35.4, St35.8, St37, St37-2, ST37.4, St52, St52.4
  • Thickness: 0.5 - 12 mm
  • Section Shape: Round
  • Outer Diameter: 12 - 128 mm
  • Place of Origin: Zhejiang, China (Mainland)
  • Secondary Or Not: Non-secondary
  • Application: Mechanical purpose
  • Technique: Cold Drawn
  • Certification: ISO 9001 TS16949 ISO 14001
  • Surface Treatment: Black Phosphate Finish
  • Special Pipe: Hydraulic Seamless Tube
  • Alloy Or Not: Non-alloy
  • Length: 1-12m
  • Keywords: seamless steel pipe for construction material

Packaging & Delivery

Packaging Details In Hexagonal bundles packaging or In wooden boxes packaging
Delivery Time 30-40 days after order confirmed

1.Quick Detail:
Black Phosphated Hydraulic Tubes with High Precision
EN10305-1, EN10305-4, DIN2391,
E235, E355, ST37.0, ST44.0, ST52.0
Steel Pipes with high precision for Hydraulic Systems Black Phosphating

mleseass steel pipe for construction material
2.Production process:
DIN series tubes, cold drawn and bright annealed precision seamless steel tube is used as the tube to be phosphated. The phosphorization is realized with the imported chemical fluid to form a black film. The antirust oil is absorbed by means of the micropore on the film to prevent the tubes from getting rust.


3.Main Features:
Bright black color is homogeneously distributed on the tube surface. The tube has good property of antirust.


4.Main Application:
Phosphated hydraulic tube is mainly used in hydraulic system.


5.Our products are widely used in:
Engineering machinery Machine tool industry Hydraulic industry Special vehicle
Automobile pipeline Heavy machinery Compressor Shipbuilding industry
Railway locomotive Diesel engine Utility boiler Injection molding machine 
Power equipment Heavy duty automobile Forging and stamping machine


6.Main Characteristics:
No Oxidation Layer on the Outer and Inner Walls
No Crack under Flaring and Flattening
No Leakage under High Pressure 
No Distortion after Cold Bending 
High Precision High Cleanness Excellent Brightness

 

Detailed Images

QUALITY CONTROL

1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness,                  Impact, Mictrostruture etc
8~ Packing and Stocking.

Q: Are you trading company or manufacturer ?

A: A professional steel pipes materials inventor, manufacturer and solution provider

Q: How long is your delivery time?

A: Generally it is 7-14 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us 

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China (Mainland) | Manufacturer, Trading Company
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5 Transactions 50,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $31,000
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