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EN10305-1 4140 Seamless Tubing CS Seamless Pipe OD 6mm

Basic Information
Place of Origin: China
Brand Name: SunShine
Certification: ISO9001
Model Number: 6mm to 114.3mm
Minimum Order Quantity: 5T
Packaging Details: In Bundles, Woodenbox As Your Requirement
Delivery Time: 30days
Payment Terms: L/C, T/T
Supply Ability: 2000T/Month
Detail Information
OD. Range: 6mm – 114.3mm Wall Thickness: 1mm-15mm
Standard: EN10305-1 Grade: E235,E255,E355,C45E, E235C,C35E, ST35,ST45,ST37
Length: Max Length 12M Tolerance: H8,H9,H10
High Light:

CS 4140 seamless tubing


6mm 4140 seamless tubing


EN10305 cs seamless pipe

Product Description

EN10305-1 OD Range 6mm – 114.3mm Hot Dip Galvanized Steel Pipe, Carbon Steel Seamless Pipe/ Seamless Precision Steel Tube


Grade E215, E235, E355
EN10305-1 E215, E235, E355 is the standard applicable to seamless cold-drawn tubes

EN10305 Consists of the following parts under the general title:
Steel tubes for precision applications.

Technical delivery conditions:

Part 1: Seamless cold-drawn tubes.
Part 2: Welded cold-drawn tubes.
Part 3: Welded cold-sized tubes.
Part 4: Seamless cold-drawn tubes for hydraulic and pneumatic power systems.
Part 5: Welded and cold-sized square and rectangular tubes.
Part 6: Welded cold-drawn tubes for hydraulic and pneumatic power systems.



Grade and Chemical Composition ( % )













E235 1.0308 0.17 ≥0..4 0.025 0.025 0.35
St45 1.0408 0.21 ≥0.4 0.025 0.025 0.35
E355 1.0508 0.22 ≤1.6 0.025 0.025 0.55


Mechanical properties:

item grade

Cold finished (Hard)


Cold finished



Cold-finished and stress-relieved


Annealed (GBK)



Rm A Rm A Rm ReH A Rm A Rm ReH A
1 E235 480 6 420 10 420 315 14 315 25 340-470 235 25
2 ST45 580 5 520 8 520 375 12 390 21 440-570 255 21
3 E355 640 4 580 7 580 450 10 450 22 490-630 355 22



EN10305-1 4140 Seamless Tubing CS Seamless Pipe OD 6mm 0



Q: What product information must I provide before making a purchase?
Please provide the grade, width, thickness, and surface treatment requirements, as well as the quantities you require.

Q: What shipping ports are there?
We normally ship from Shanghai, Tianjin, Qingdao, and Ningbo ports

Q: Is it possible to send samples?
Of course, we offer free samples and express shipping to customers all over the world.

Q: Do you offer a service for customized products?
Yes, we can produce according to your specifications and drawings.

Q: Can I pay you a visit to your factory?
Customers from all around the world are welcome to visit our factory.

Q: Can you assist me in importing steel products for the first time?
Yes, we have a shipping agent who will arrange the shipment with you.

Q: Do you have any MOQ limit for production?
We don’t have any MOQ limit. But as for our steel pipe product, we usually use container transport for lower freight. In the case of express delivery, high freight charges will be generated.

Q: Is it OK to print my logo on the product or the carton packing?
Yes. Please inform us formally before our production and confirm the design first based on our sample.

Q: How to pack the product?
The inner layer has a waterproof paper outer layer, iron packaging, and is fixed with a fumigated wooden pallet. It
can effectively protect products from corrosion during ocean transportation


Contact Details

Whatsapp : +8613961408918