En10305-1 E235 E355 Concrete Pump Fluid Handling System Seamless Steel Pipe

Customization: Available
Type: Seamless
Technique: Cold Drawn

Product Description

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Basic Information

Material
Carbon and Alloy
Surface Treatment
Bright Annealing, Black Phosphating, Galvanizing
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Heat Exchanger
Section Shape
Round
Standard
DIN2391, En 10305-1, JIS G3445, ASTM A519
Delivery Condition
Bk, Gbk, Bkw, Bks or Nbk
Steel Grade
St35, St45, St52, E235, E355, 1010, Stkm 11A
Certificate
ISO 9001 Ts16949
Application
Automotive, Hydraulic System and Precision Device
Transport Package
Plywood Box or Bundles
Specification
OD2-60mm
HS Code
7304319000
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Detailed Photos

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Technical Specifications

COLD DRAWN SEAMLESS STEEL TUBE
Standards Steel Grades Size Range
DIN 2391 ST35/45/52 OD2 - 60mm × WT0.3 -10mm
1629 ST37/44/52 OD2 - 60mm × WT0.3 -10mm
1630 ST37.4/44.4/52.4 OD2 - 60mm × WT0.3 -10mm
2445 ST35/ST52/ST37.4/52.4 OD2 - 60mm × WT0.3 -10mm
GB/T 8162 / 8163 10/20/16Mn/35/45/etc OD2 - 60mm × WT0.3 -10mm
3639 10/20/16Mn/35/45/etc OD2 - 60mm × WT0.3 -10mm
3093 10/20/16Mn/35/45/etc OD3 - 30mm × ID 1 - 12.5 mm
EN 10305-1 E215/235/255/355 OD2 - 60mm × WT0.3 -10mm
10305-4 E215/235/255/355 OD2 - 60mm × WT0.3 -10mm
ASTM A519 1010/1025/1045/4130/4140 OD2 - 60mm × WT0.3 -10mm
A269 304, 304L, 316, 316L OD2 - 60mm × WT0.3 -10mm
JIS G3445 STKM11A/12A/13A/S45C OD2 - 60mm × WT0.3 -10mm
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Delivery & Applications

Delivery Conditions: BK (+C), BKW (+LC), BKS (+SR), GBK (+A), NBK (+N)

Major Inspection Items: Tensile strength, Yield strength, Elongation, Flattening, Flaring, Chemical analysis, Eddy Current Test (100%), Size and surface checking (100%).

Certificates: According to EN 10204 3.1

Core Applications:

  • Vehicle Systems: Fuel-rails, Fuel-lines, Common-rail diesel lines, SCR & EGR, Air-conditioning tubes, Clutch actuator pipes, Power-Steering Feed-Pipes.
  • Hydraulic Systems: Hydraulic and Pneumatic Pressure Lines, Hydraulic fittings, and tubing.
  • Mechanical Engineering: Metal processing, Heat Exchange, Gas Cylinders, Aerospace, and Power Generation.
  • Other: Front axles, headrest chair tubes, and sun-shading board wire tubes.
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Manufacture Process

Manufacture Process Flow
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Company Profile

Production Facility

The company owns an excellent geographic position with convenient water and land transportation links. It is one group company with two manufactures: one is producing steel forgings for Marine, Power, Boiler, Ocean, Oil, Petrochemical, Mechanical and Hydraulic fields; the other is producing precision steel tubes for the automotive industry and hydraulic systems. There is also a semi-independent company specifically for import and export business.

The facility covers a total area of 150,000 square meters with over 200 employees. All products manufactured by the mills undergo double inspection by professional quality controllers to ensure detailed reports for tested items. By adhering to strict inspection standards, the company has secured long-term business relationships globally, following the tenet of "Customer First, Quality Foremost."

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Packaging & Shipping

Packaging and Shipping

Frequently Asked Questions

1. What international standards do your seamless steel pipes comply with?
Our tubes are manufactured according to major standards including DIN 2391, EN 10305-1, JIS G3445, ASTM A519, and GB/T 3639.
2. What are the primary applications for these precision tubes?
They are widely used in automotive systems (fuel rails, steering pipes), hydraulic and pneumatic pressure lines, mechanical processing, and heat exchangers.
3. What steel grades are available for production?
We offer various grades such as St35, St45, St52, E235, E355, 1010, 1025, and STKM series depending on the standard required.
4. What delivery conditions can I choose from?
Available delivery conditions include BK (Cold finished/hard), BKW (Cold finished/soft), BKS (Stress relieved), GBK (Annealed), and NBK (Normalized).
5. How is the quality of the steel tubes guaranteed?
We perform 100% size and surface checking, along with rigorous tests like Eddy Current testing, tensile strength analysis, and chemical composition checks.
6. What is the typical size range of the tubes?
The standard size range for our cold-drawn seamless tubes is an Outer Diameter (OD) of 2mm to 60mm and a Wall Thickness (WT) of 0.3mm to 10mm.

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