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Carbon Steel Seamless Alloy Tube Thick Wall EN10305-4

Basic Information
Place of Origin: China
Certification: ISO9001
Packaging Details: In Bundles, Woodenbox As Your Requirement
Detail Information
Name: Seamless Precision Tube Keyword: Seamless Tube
OD. Range: 6mm – 114.3mm Wall Thickness: 1mm-15mm
Standard: GB/T3090-2000 Grade: ST35,ST45,ST52,E355,E235
Length: Max Length 12M Surface: Black Painting, Varnish, Oil, Epoxy Coating
High Light:

Carbon Seamless Alloy Tube


EN10305 4 Seamless Alloy Tube


EN10305 4

Product Description

EN10305-4 Steel High Precision Bright Surface Thick Wall Seamless Carbon Steel Pipe Tube


ST37.4 EN10305 Seamless Steel Tubes



Outer diameter:10.3-711mm

Wall thickness:2-100mm

Length:5.8-12m or random

Type:Seamless (cold drawn) or ERW

Ends:Plain ends or bevel ends

Delivery Conditions: BK,BKS,BKW,NBK,GBK( As drawn, quenched and tempered, normalized, annealed, stress-relieved)As different requirements,It including pickling,etc. AS per Standard.




Grade and Chemical Composition ( % )


Grade C ≤ Si ≤ Mn ≤ P ≤ S ≤ Al ≥
E215 0.10 0.05 0.70 0.025 0.025 0.025
E235 0.17 0.35 1.20 0.025 0.025 -
E355 0.22 0.55 1.60 0.025 0.025 -



Mechanical properties


Grade Yield strength Reh min Mpa Tensile strength Rm min Mpa Elongation A min %
E215 215 290-430 30
E235 235 340-480 25
E355 355 490-630 22

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 at 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 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 firstly 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 transportatio




Contact Details

Whatsapp : +8613961408918