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ST35 Cold Drawn Precision Seamless Steel Pipe

  • ST35 Cold Drawn Precision Seamless Steel Pipe
  • ST35 Cold Drawn Precision Seamless Steel Pipe
  • ST35 Cold Drawn Precision Seamless Steel Pipe
  • ST35 Cold Drawn Precision Seamless Steel Pipe

ST35 Cold Drawn Precision Seamless Steel Pipe

    Packaging: Standard marine packaging or according to customer requirements
    Productivity: 10000 Tons Per Month
    Brand: H-TONG
    Transportation: Ocean,Land,Air,Express
    Place of Origin: China
    Supply Ability: 10000 Tons Per Month
    Certificate: CE
    HS Code: 7304319000
    Port: Tianjin Port,Qingdao Port,Shanghai Port

Basic Info

Model No.: Cold Drawn Smls Steel Pipe

Product Description

Cold rolled steel pipe

Cold rolled precision Seamless Steel Pipe is a kind of seamless Steel Pipe with high dimensional accuracy and good surface finish for precision mechanical structures, hydraulic equipment or steel sleeve.

The cold working methods of Steel Pipes mainly include cold drawing and cold rolling. In recent years, with the development of science and technology, a cold spinning method has been developed, which can produce large-diameter, high-precision cold-rolled tubes and variable cross-section cold-rolled tubes. The raw materials of cold-rolled steel pipes can be hot-rolled Seamless Steel Pipes or welded pipes. The common characteristics of the cold working method of steel pipes are high dimensional accuracy and good surface roughness. It can produce very thin (up to 0.05~0.01mm) thin-walled tubes and very thin (up to 0.3~0.1 mm in diameter) capillaries.

Seamless steel pipe is a kind of pipe with hollow section, which is widely used to transport fluids, such as oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe is light in weight when its bending and torsional strength is the same. It is a kind of economic section steel, which is widely used in pipeline engineering.

Generally, the production process of seamless steel pipe can be divided into cold rolling and hot rolling. The appearance of cold-rolled seamless steel pipe is shorter than that of hot-rolled seamless steel pipe. The wall thickness of cold-rolled seamless steel pipe is generally smaller than that of hot-rolled seamless steel pipe. But the surface looks brighter than that of thick wall seamless steel pipe. The surface is not too rough, and the diameter is not too much burr.

In order to obtain seamless pipes with smaller size and better quality, cold rolling, cold drawing or a combination of the two methods must be used.
High precision cold drawn precision steel pipe is a new type of steel pipe, which is mainly characterized by high precision. There are usually two production processes of two high mill and three high mill. The precision of three high mill in producing cold rolled seamless steel pipe is higher, which can be controlled within a few wires, but the price is relatively higher

The product specification range of cold rolled steel pipe is: outer diameter 4.0 ~ 450mm; The wall thickness is 0.04 ~ 60mm. Compared with the cold drawing method, the advantage of the periodic cold rolling method is that the shrinkage of the pass surface is large, there is no need for difficult head, and the yield is high.

Common specifications of cold drawn steel pipes:
12mm 14mm 18mm 20 mm 25mm 28mm 30mm 32mm 35mm 38mm 40mm 42mm 52mm


ASTM A179/(ASME SA179)
Seamless Cold Drawn Low Carbon Steel Heat Exchanger And Conderser Tubes
For tubular heat exchangers,condensers,and similar heat transfer apparatus.
Size(mm): O.D.:6.0~114.0mm W.T.:1~15mm L:max 18000mm
Grade and Chemical Composition (%)
Chemical Composition C Mn P≤ S≤ Si≤
0.06-0.18 0.27-0.63 0.035 0.035 0.25
OD In (mm) + - WT In(mm) + -
<1(25.4) 0.10 0.10 ≤1.1/2(38.1) 20% 0
1~1.1/2(25.4~38.1) 0.15 0.15 >1.1/2(38.1) 22% 0
>1.1/2~<2(38.1~50.8) 0.20 0.20
2~<2.1/2(50.8~63.5) 0.25 0.25
2.1/2~<3(63.5~76.2) 0.30 0.30
3~4(76.2~101.6) 0.38 0.38
>4~7.1/2(101.6~190.5) 0.38 0.64
>7.1/2~9(190.5~228.6) 0.38 1.14

ASTM A192/A192M-02
Seamless Carbon Steel Bolier Tubes for High-Pressure
For seamless carbon steel bolier and superheater tubes for high-pressure service
Size(mm): O.D.:6.0~114.0 W.T.:1~15 L:max 18000
Grade and Chemical Composition (%)
Chemical Composition
C Mn P≤ S≤ Si≤
0.06-0.18 0.27-0.63 0.035 0.035 0.25


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 Shandong Huitong Steel Co.,ltd is located in Liaocheng City, Shandong Province, China. Our sales range covers Seamless Steel Pipe, Galvanized Steel Products, Carbon Steel Plate, customized special-shaped steel pipe and Other Steel Products. We have established a sound scientific management and quality assurance system. We can customize metal products according to customers' drawings and samples. With excellent and stable quality, reasonable price and thoughtful and efficient service, we are committed to continuously improving product quality and service level and serving more customers, making Huitong your preferred steel procurement supplier. Huitong has a professional and efficient international trade team, which can better serve customers. Huitong supply Supply the world!

Company Info

  • Product/Service: Seamless Steel Pipe , Carbon Steel Plate , Galvanized Products , Color Coated Roll , Corrugated Roofing Sheet , Welded Pipe
  • Capital (Million US $): 3000000RMB
  • Year Established: 2021
  • Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
  • Export Percentage: 51% - 60%
  • No. of Production Lines: 7
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 11 -20 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 3,000-5,000 square meters
  • Factory Location: Liaocheng, Shandong, China
  • Contact Person: Mr. Hui tong
  • Tel: 86-635-4650736
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