En 10219/En10210 Material S235jr/S355jr or Equal Cold Formed Carbon Steel Hollow Section

Still deciding? Get samples of $ !
Request Sample

Product Description

Basic Info.
Model NO.
bks-01
Material
Carbon Steel
Surface Treatment
Varnishing
Section Shape
Rectangular/Square/Oval/Round
Material Grade
S235jr/S355jr/S275/Ck45/C20/S20c/S45c
Wall Thickness
1-50mm
Length
1~12m
Product Name
S235jr S355jr Seamless Cold Formed Steel Pipe
Process
Cold Formed/Cold Drawn/Cold Rolled
Capacity
10000ton/Month
Product Description

En 10219/En10210 Material S235jr/S355jr Cold Formed Carbon Steel Hollow Section

PART I: PRODUCT INTRODUCTION

1. Description: Seamless rectangular steel tubes, also known as rectangular hollow sections, are manufactured from hot rolled seamless steel pipes. Unlike welded sections, these are produced through hydraulic cold drawing, resulting in seamless tubes with tight size tolerances and perfect twist characteristics.

2. Commodity: S355J2H cold finished rectangular hollow section

3. Available Steel Grades
ASTM A519SAE1020, SAE1026, SAE1045, SAE1518, SAE1524, SAE1541, SAE4130, SAE4140, SAE4145, SAE4340, SAE8620
DIN 2391-2ST35, ST45, ST52
EN 10305-1E195, E235, E355, C35E, C45E, 25CrMo4, 34CrMo4, 42CrMo4
EN 10305-4E215, E235, E355
GB/T 363910#, 20#, 45#, 16Mn, Q345B, Q345C, Q345D, Q345E, 25Mn, 27SiMn
5. Size Range
Side Dimensions80mm*60mm - 300mm*200mm
Wall Thickness (W.T)35mm max

6. Manufacture method: Hydraulic cold drawn

7. Delivery Condition
BKW (+LC) BKS (+SR) GBK (+A) NBK (+N)
Cold drawn Stress relieved Annealed Normalized

8. End finish: Plain ends with square cuts, bevelled ends.

9. Standard export packing: In bundles tied with steel strips. Internal and external oil coating. External packing by PVC bags and knit bags.

10. Customized packing or marking: Available upon request.

Product Showcase
Quality Assurance
BV Certification

Specializing in seamless steel pipe, galvanized steel pipe, stainless steel pipe, and ERW/SSAW/LSAW welded pipe. We offer high-quality products with competitive pricing and dedicated service to meet diverse industrial needs worldwide.

Product Application
Frequently Asked Questions
What is the difference between these seamless rectangular tubes and welded ones?
Our seamless rectangular tubes are made from hot rolled seamless steel pipes through hydraulic cold drawing, ensuring no weld seams, tighter tolerances, and better structural integrity.
Which steel grades are available for these hollow sections?
We provide various grades including S235JR, S355JR, ASTM A519 (SAE1020/1045), EN 10305-1 (E235/E355), and GB/T 3639 (20#/45#).
What are the common applications for S235JR/S355JR steel pipes?
These pipes are widely used in pipeline transport, boiler systems, machinery industry, chemical processing, mining, and construction/decoration projects.
What delivery conditions do you offer for cold drawn tubes?
We offer BKW (Cold drawn), BKS (Stress relieved), GBK (Annealed), and NBK (Normalized) delivery conditions to meet specific mechanical property requirements.
How are the pipes protected during international shipping?
The pipes are bundled with steel strips, coated with internal and external oil for rust prevention, and wrapped in PVC or knit bags for standard export protection.
Can you provide customized sizes and marking?
Yes, customized dimensions within our size range and specific product marking are available upon customer request.

Related Products