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Carburizing Seamless Automotive Steel Pipe ASTM A534 Grade B20 B21 Material

Carburizing Seamless Automotive Steel Pipe ASTM A534 Grade B20 B21 Material

  • High Light

    automotive steel tubing


    drawn over mandrel tubing

  • Grade
  • Thickness
    3.5 - 20 Mm
  • Section Shape
  • Outer Diameter(Round)
    5 - 114 Mm
  • Application
    For Anti-Friction Bearings
  • Technique
    Cold Drawn
  • Product Name
    Automotive Steel Tube
  • Length
  • Place of Origin
    Zhejiang, China (Mainland)
  • Certification
    ISO9001, ISO14001, TS16949
  • Minimum Order Quantity
  • Price

Carburizing Seamless Automotive Steel Pipe ASTM A534 Grade B20 B21 Material

ASTM A534 Grade B20 B21 Carburizing Seamless Type Automotive Steel Tubes


Bearing Steel Tube GCr15 SAE52100 100Cr6 SUJ-2 S135 SKF3 SKF3S

Seamless Cold Worked Bearing Steel Tube
Bearing Steel Tube 100Cr6 , GCr6 , GCr9(SiMn), GCrl5(SiMn) , GSiMnV(Re),GSiMnMoV(Re),GMnMoV(Re)
O.D.: 5-144mm     W.T.:3.5-20mm     L: 0-12000mm according to customer requirements.
GCr15 SAE52100 100Cr6 SUJ-2 S135 SKF3,SKF3S Etc.
1) Steel ball, roller and collar of large machinery bearing
2) High-hardness and high contact fatigue strength machinery parts with heavy load, such as axis of rotation, blade, stator pump, profiling, sleeve, mandril, etc.
1) Good hardability and high toughness
2) Long fatigue life
3) Medium cold processing plasticity
4) Certain machinability
5) Poor weldability


Delivery Condition: Black Surface,ff
The Main Technical Parameter of the finished product


Carburizing Seamless Automotive Steel Pipe ASTM A534 Grade B20 B21 Material 0

About us

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

Equipment & technology

2, Our technicians are of great engineering experience in steel pipe industry for more than 20 years


3, Stable product quality , supply, the good faith management

Our Service
Packing & Delivery

Packing Details  : In bundles or wooden box of automotive steel tube

Delivery Details  : 5-8 working days


In hexagonal bundles packaging with woven 

In hexagonal shaps,the tubes will be well fixed,so it can avoid the damages when delievey .

In wooden boxes.

Solid packaging ,protecting tubes from damages much better.
In poywooden packaging,It cut the packaging costs also it can protect tubes well
In bundles with end caps.well protect tubes from rust.
Carton Packing suit for the cutting length

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time ?

A: It is according to quantity. And usually is 35-50 days after receiving 30% T/T in advance.

Q: How to get the sample of automotive steel tube ?


1. You are requested to pay for sample charges and courier charges from China to your country; and the free sample is according the product like size, steel grade and quantity, please consult our sales for details
2. Sample charges will be refunded when order is placed.

Q: What is your terms of payment ?


1. T/T: 30% deposit in advance, the balance 70% paid before shipment

2. 30% down payment, the balance 70% paid against L/C at sight
3. Upon negotiation