En10305-1 En10305-4 DIN2391 St37.4 St52.4 Od6mm 8mm 18mm Cold Drawn Hydraulic HPL Black Phosphated Galvanized Cr6 Free Precision Carbon Steel Tube

Customization: Available
Type: Seamless
Technique: Cold Drawn

Product Description

Basic Information

Model NO.
CDS-10
Material
Carbon and Alloy
Surface Treatment
Bright Annealing, Black Phosphating, Galvanizing
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
Tolerance
±0.08mm
Thickness
0.1-10mm
Specification
OD2-60mm

Product Description

En10305-1 En10305-4 DIN2391 St37.4 St52.4 Od6mm 8mm 18mm Cold Drawn Hydraulic HPL Black Phosphated Galvanized Cr6 Free Precision Carbon Steel Tube

Precision Steel Tube 1
Precision Steel Tube 2
Precision Steel Tube 3
COLD DRAWN SEAMLESS STEEL TUBE
Standards Sub-Standard 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
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 1010/1015/1025/1045/4130/4140 OD2 - 60mm × WT0.3 -10mm
JIS G3445 STKM11A/12A/12B/13A/S45C OD2 - 60mm × WT0.3 -10mm

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

Applications

Vehicle & Automotive

  • Powertrain: Fuel-rails, Fuel-lines, Diesel lines
  • Fluid handling: Air-conditioning, Clutch actuator pipes
  • Steering: Power-Steering Feed-Pipes
  • Hydraulic: Pressure Lines, fittings, tubing
  • Others: Front axles, Sun-shading tubes, Headrest tubes

Mechanical & Engineering

  • Mechanic Processing and parts
  • Heat Exchange & Gas Cylinders
  • Sub-sea, Marine and Aerospace
  • Wind Power & Energy Generation
  • Bearings and Metal processing

Manufacture Process

Manufacture Process

Profile

Production Facility

The group operates two specialized manufacturing facilities. One produces steel forgings for Marine, Power, Boiler, Ocean, Oil, Petrochemical, Mechanical, and Hydraulic fields. The other focuses on precision steel tubes for the automotive industry and hydraulic systems. A dedicated semi-independent division handles import and export operations.

With a total area of 150,000 square meters and over 200 employees, the facilities ensure quality through a double-inspection process. Products undergo rigorous testing by professional quality controllers, and customers receive detailed reports for all tested items. We adhere to the principle of "Quality Foremost" and strive to serve global customers with full commitment.

Packaging & Shipping

Packaging and Shipping

Frequently Asked Questions (FAQ)

What standards do your precision steel tubes comply with?
Our tubes are manufactured according to international standards including DIN 2391, EN 10305-1, EN 10305-4, ASTM A519, and JIS G3445.
What size ranges are available for the cold drawn tubes?
We offer an outer diameter (OD) range from 2mm to 60mm, with wall thickness (WT) ranging from 0.1mm to 10mm.
What surface treatments can be applied to the hydraulic tubes?
Available surface treatments include Bright Annealing, Black Phosphated, and Galvanized (Cr6 free) finishes to meet various corrosion resistance requirements.
What are the main applications for these tubes?
Common applications include automotive powertrain systems, fuel lines, hydraulic and pneumatic pressure lines, construction machinery, and heat exchangers.
What delivery conditions do you provide?
We provide several delivery conditions: BK (+C), BKW (+LC), BKS (+SR), GBK (+A), and NBK (+N).
How is the quality of the products ensured?
We perform 100% size and surface checks, along with technical tests such as tensile strength, yield strength, flattening, flaring, and Eddy Current testing.

Related Products