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CX-02
CHENGXIN
730431
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EN 10305-1 Cold Rolled Precision Steel Tube
Model: CX-02
Brand: CHENGXIN
HS Code: 730431
Available Quantity: 1
Product Overview
EN 10305-1 cold rolled precision tubes are seamless steel tubes with exceptional dimensional accuracy, superior surface finish, and high mechanical strength. Designed for applications that demand tight tolerances and high surface quality, these tubes are widely used in automotive components, hydraulic systems, mechanical engineering, and energy infrastructure.
This product is available in carbon steel and alloy steel grades such as E235, making it ideal for both general industrial and high-performance engineering applications.
Specifications
Commodity: Cold Rolled Seamless Precision Steel Tube
Size Range: Outer Diameter 10mm to 325mm, Wall Thickness 1mm to 35mm
Manufacturing Standards: EN 10305-1, DIN 2391-2, ASTM A519, JIS G3445
Steel Grades Available
EN 10305-1: E195, E235, E355, C35E, C45E, 25CrMo4, 42CrMo4
DIN 2391-2: ST35, ST45, ST52, ST52.3, ST52.4
ASTM A519: SAE 1010, 1020, 1026, 1035, 1045, 1518, 1524, 1541, 4130, 4140, 4145, 4340
JIS G3445: STKM 11A/B/C, STKM 12A/B/C, STKM 13A/B/C
Manufacturing Process
Methods: Cold Rolled / Cold Drawn
Delivery Conditions: +C (Cold worked – hard), +LC (Cold worked – soft), +SR (Stress relieved), +A (Annealed), +N (Normalized), Q+T (Quenched and Tempered)
Precision & Finish
Size Tolerance: According to standard or customized requirements
End Finish: Plain ends with square cuts or bevelled ends
Surface Finish: Internal and external oil coating for anti-rust protection
Marking: Each piece marked with CX/Size/Grade/Heat Number
Packaging
Bundling: Secured with steel strips
Coating: Internally and externally oiled
Wrapping: PVC bags and knit fabric for outer protection
Customized Packing: Available upon request
Applications
Automotive suspension and steering systems
Hydraulic and pneumatic cylinder tubes
Mechanical equipment and machine frames
Structural and load-bearing steel assemblies
Oil and gas pipeline pigs and tools
FAQs
Q1: What is E235 carbon steel and why is it used in cold rolled pipes?
A1: E235 is a low-carbon steel grade under EN 10305-1, known for good machinability, formability, and pressure-bearing capacity. It is ideal for cold rolled precision applications.
Q2: What’s the difference between cold drawn and cold rolled tubes?
A2: Both improve surface finish and dimensional accuracy. Cold rolled tubes generally offer tighter tolerances and smoother surface finishes, while cold drawn tubes may be more cost-effective for certain sizes.
Q3: Can I request a specific delivery condition like NBK or GBK?
A3: Yes, all standard delivery conditions including BK, BKW, BKS, GBK, NBK, Q+T are available upon request.
Q4: Do you offer OEM services or custom tube marking?
A4: Yes, we support custom orders, including OEM branding and special markings.
Q5: What’s the lead time?
A5: Usually 20–35 days depending on steel grade availability and order quantity.
Why Choose CHENGXIN
In-house production covering full cold drawing and rolling process
Advanced equipment with complete inspection system
ISO9001 & ISO14001 certified
Over 20 years of export experience
Reliable steel sourcing from global-grade suppliers
Need reliable precision tubing? Contact us today to find the right cold rolled EN 10305-1 E235 tube for your application!
