Best quality China Manufacturer Precision Steel Pipe 20 Cr Cold Rolled Steel Seamless Precision Steel Tube

Short Description:

Precision Seamless Steel Piping for mechanical and light structural applications. This results in more uniform properties throughout the pipe compared to standard pipes. While mechanical tubes can be produced to standard specifications upon request, the “typical” properties typically produced focus on yield strength for precise dimensions and wall thicknesses. In some heavily formed applications, the yield strength may not even be specified and the mechanical tube is produced “fit for use”. Mechanical tubing includes a wide range of structural and non-structural applications.


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Being supported by an advanced and specialist IT team, we could give technical support on pre-sales & after-sales services for Best quality China Manufacturer Precision Steel Pipe 20 Cr Cold Rolled Steel Seamless Precision Steel Tube, We’ve extra than 20 years experience with this industry, and our product sales are well qualified. We will supply you with one of the most experienced strategies to fulfill your products’ prerequisites. Any troubles, occur to us!
Being supported by an advanced and specialist IT team, we could give technical support on pre-sales & after-sales services for China 20Cr Precision Steel Tube, High output volume, top quality, timely delivery and your satisfaction are guaranteed. We welcome all inquiries and comments. If you are interested in any of our products or have an OEM order to fulfill, please feel free to contact us now. Working with us will save you money and time.

At Haihui Steel, we apply our metallurgical and production expertise to manufacture high-performance seamless mechanical pipe products to meet your needs.

This includes carbon, alloys and even custom steel grades; annealed, normalized and tempered; stress relieved and stress free; quenched and tempered.

Machinery and automotive seamless steel pipes for automobile skeleton and rear axle pipes, manufacturing and processing of precision equipment and instruments.

Application:

Backbone of Automobile and rear axle tube

Manufacturing and processing of precision equipments, instruments and apparatus

Delivery Condition: GBK, BKS, BK, BKW, NBK

Inspection and Test:

Chemical Composition, Mechanical Properties, Visual and Dimension Test, NDT, Grain Size Test

Surface Treatment:

Oil-dip, Varnish, Shot Blasting

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Grade

C

Mn

P≤

S≤

Si

Cr

Mo

1010 0.08-0.13 0.30-0.60 0.04 0.05 - - -
1020 0.18-0.23 0.30-0.60 0.04 0.05 - - -
1045 0.43-0.50 0.60-0.90 0.04 0.05 - - -
4130 0.28-0.33 0.40-0.60 0.04 0.05 0.15-0.35 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.75-1.00 0.04 0.05 0.15-0.35 0.80-1.10 0.15-0.25

Grade

Condition

Tensile strength

Yield stength

Elongation

 

 

Mpa(min)

Mpa(min)

%(min)

1020 CW 414 483 5
  SR 345 448 10
  A 193 331 30
  N 234 379 22
1025 CW 448 517 5
  SR 379 483 8
  A 207 365 25
  N 248 379 22
4130 SR 586 724 10
  A 379 517 30
  N 414 621 20
4140 SR 689 855 10
  A 414 552 25
  N 621 855 20

Minimum Quantities

Hot-finished carbon and alloy—10,000 pounds, or 4,536 kilograms minimum.

Cold-drawn carbon and alloy—5,000 pounds minimum or 125 feet minimum, 2,268 kilograms minimum or 38.1 meters minimum, whichever is greater.

Quantity variation—standard ±10% of the ordered weight, or ±25 feet or 7.61 meters, whichever is greater.

Special Configurations

Tubular Products special seamless tubing configurations start with the highest quality steels. Grade, chemical analysis and surface condition are carefully considered, and production processes are tailored to achieve the best tubing for the end use.

The configurations are formed from round tube by cold drawing. The tube is drawn over a shaped mandrel or through a shaped die, or both. Improved tolerances, finishes and mechanical properties result.

Seamless and welded tubes for mechanical and general engineering applications. Tubes for construction and structural purposes such as civil structures, foundations, etc.

Standard

Steel Grade

EN 10297 E355
10210-1/2 S235JRH, S275JOH, S275J2H, S355JOH, S355J2H
10219-1/2
DIN 1629/2448 St-52
ASTM A500 Gr. A, Gr. B
A501
A618 Gr. I, Gr. II, Gr. III

Supply Conditions

Steel Tubes Provided according to Outside Diameter and Wall Thickness

Steel Pipes Provided according to Outside Diameter, Inside Diameter and Wall Thickness

Steel Tubes with the Outside Diameter of 77 mm, Inside Diameter of 57 mm and the Wall Thickness of 10 mm

Allowable Deviation of Diameter and Wall Thickness

Size (mm)

Allowable Deviation (%)

Size

Allowable Deviation

Size

Allowable Deviation

Outside Diameter

±1.0

Outside Diameter

±1.0%

Outside Diameter

+1.0 mm-0.55 mm

Wall Thickness

≤ 7

6

﹥7-15

2.5

Inside Diameter

±1.75%

Inside Diameter

+1.5 mm-0.5 mm

﹥15

5

Wall-Thickness-Difference

≤ 15% of Nominal Wall Thickness

Wall-Thickness-Difference

≤ 15% of Nominal Wall Thickness

Being supported by an advanced and specialist IT team, we could give technical support on pre-sales & after-sales services for Best quality China Manufacturer Precision Steel Pipe Cold Rolled 20Cr Steel Seamless Precision Steel Tube, We’ve extra than 20 years experience with this industry, and our product sales are well qualified. We will supply you with one of the most experienced strategies to fulfill your products’ prerequisites. Any troubles, occur to us!
Best quality China Precision Steel Tube and Galvanized Steel Pipes, High output volume, top quality, timely delivery and your satisfaction are guaranteed. We welcome all inquiries and comments. If you are interested in any of our products or have an OEM order to fulfill, please feel free to contact us now. Working with us will save you money and time.
If have any inquiry about 20Cr alloy seamless steel pipe ,please kindly send me details to email:bruce@haihuisteel.com or 0086-15865769231(whatsapp),we would like to provide our best price as soon as possible.We also can provide steel pipe cutting service according to your demands.
Welcome to visit our company ,Hope to cooperate with your esteemed company !


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