EN 10219 S235JRH Carbon Steel Welded Pipe

 

S235JRH welded pipe is a type of hollow section supplied in a normalized or as-rolled condition, suitable for cold forming. Here is a detailed breakdown of its designation:

S: Indicates that the pipe is made of structural steel.

235: Refers to the minimum yield strength of the steel, which is 235 MPa.

JR: Signifies that the pipe is supplied in a normalized or as-rolled condition.

H: Indicates that the pipe is a hollow section.

S235JRH Welded Steel Pipe Specification

Standard	BS EN 10219 – Cold Formed Rectangular Hollow Sections Pipes
Grade	S235JRH
Wall Thickness	0.5 – 25mm
Length	6000-14000 mm
Type	Welded / ERW / EFW
Dimension Range	26.9 – 323.9 mm
Surface Protection	Black (Self Coloured uncoated), Varnish/Oil Coating, Pre-Galvanized, Hot Dip Galvanized

EN 10219 S235JRH Pipe Chemical Composition

Steel Grade	Steel No.	Chemical Composition Limits (%)
		C Max.	Si Max.	Mn Max.	P Max.	S Max.	N Max.
S235JRH	1.0039	0.17	–	1.40	0.040	0.040	0.009

S235JRH EN 10219 Carbon Steel Pipe Mechanical Properties

Steel Grade	Steel No.	Mechanical Properties			Impact Energy (KV J)
		Yield Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)	Test Temperature At Test Temperature of ℃
					-20	0	20
S235JRH	1.0039	235	360-510	26	–	–	27

S235JRH Cold-formed Welded Structural Pipes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Surface Condition of S235JRH Hollow Structural Steel Sections

1. General Surface Condition:
Hollow structural steel sections should have a smooth surface consistent with the manufacturer's methods. Surface imperfections such as impacts, dents, or shallow grooves caused by the manufacturing process are acceptable, provided that the thickness remains within tolerance. Surface defects can be removed by the manufacturer through grinding, but the repaired product thickness must not fall below the minimum thickness tolerance.

2. Cutting Ends:
The ends of the steel pipes should be cut perpendicular to the axis.

3. Weld Repair for Non-Alloy and Fine-Grain Hollow Sections:
Weld repair is permissible for non-alloy and fine-grain hollow structural steel products. However, the state and procedures of the repair must be mutually agreed upon by the manufacturer and the customer.
Customers may specify that no weld repair is to be performed on the product at the time of ordering.
Weld repair of the pipe body for fine-grain hollow steel products is not allowed unless agreed upon by the customer.

4. Weld Repair Certification:
Weld repair must be carried out according to EN 287-1 operating certification. The welding procedures must follow the standards outlined in EN 288-1 to EN 288-3 and be covered by the manufacturer's quality assurance system.

5. Compliance with European Standards:
Repairs to hollow sections should adhere to all the requirements of this European standard.

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