20# Thick Wall Precision SeamlessTube

20# Thick Wall Precision SeamlessTube

Min Order Quantity:1TON

Port:Tianjin Port ,China

Sample :for free

Trade Terms: FOB / CIF / CFR

Payment: L/C,D/A,D/P,T/T,Western Union,Money Gram payments for offline orders.

Mobile/whatsapp: +86-15076763716

Email: july@zssteeltube.com



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20# Thick Wall Precision SeamlessTube is a kind of steel pipe with small size tolerance.  After cold drawn or hot rolling process ,the high precision steel tube is without oxidation layer in the surface. Precision steel tube can be under high pressure without leakage, 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, can be a seamless steel pipe, welded pipe

Precision steel pipe is widely used in automobiles, motorcycles, electric cars, petrochemical, electric power, ships, aerospace, bearing, pneumatic components, such as low pressure boiler seamless steel tubes in the category, also can be applied to steel sleeve, bearings, hydraulic, mechanical processing and other fields.

Size range

Thick wall precision tubes are available in the following size range:

Outside diameter 5-130 mm
Wall thickness 2-20 mm


Outside diameter +/- 0.05 mm (0.002 in.)
Inside diameter +/- 0.05 mm (0.002 in.)
Wall thickness +/-7.5%


Mateial:10、20、35、45 、40cr、42CrMo

Length:Random lengths of 5.2-7.3 m (17-24 ft);Cut lengths of 1.5-9.1 m (5-30 ft)

Precision steel tube formula: (outer diameter  – wall thickness) * wall thickness *  0.02466 kg/m =(weight of per meter)

Standard &material

20# Thick Wall Precision SeamlessTube


Mateial:10、20、35、45 、40cr、42CrMo

Grade chemical component%
C Si Mn S P Cr
10 0.07-0.13 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035
20 0.17-0.23 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035
35 0.32-0.39 0.17-0.37 0.35-0.65 ≤0.035 ≤0.035
45 0.42-0.50 0.17-0.37 0.50-0.80 ≤0.035 ≤0.035
40Cr 0.37-0.44 0.17-0.37 0.50-0.80 ≤0.035 ≤0.035 0.08-1.10
25Mn 0.22-0.29 0.17-0.37 0.70-1.00 ≤0.035 ≤0.035 ≤0.25
37Mn5 0.30-0.39 0.15-0.30 1.20-1.50 ≤0.015 ≤0.020

The characteristics

20# Thick Wall Precision SeamlessTube

1. Smaller outer diameter
2. High precision to do small batch.
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.


20# Thick Wall Precision SeamlessTube

  • Flaring test
  • Flattening test
  • Mechanical test
  • Microstructure test
  • Eddy Current and ultrasonic tests (on request)

Pls contact me


Name: July

CangZhou ZhongShun Steel Pipe Trade  CO., LTD

mobile/whatsapp: +86-15076763716

Email: july@zssteeltube.com


Global Business

1. More than 10 years of sales experience

2. Product exported more than 150 countries

3. Arrange to produce according yo customer's request

Fast Delivery

1. AA level customs broker,Faster through

2. 20 years of experience in the freight forwarding company

3. Delivery Detail: 10-20 days

Trusted Quality

1. Certificate: API, CE, ISO9001.2000.MTC etc

2. Inspection: BV,SGS,others is avaliable.

3. A complete testing system and testing equipments

One-Step Service

1. Free sample can be provided

2. Small order is acceptable

3. OEM is acceptable

4. Any third party testing is acceptable




  • Phone0086-317-2159105


  • Phone0086-317-2159106