China S355jr S355j2h Round Structural Steel Tubing Seamless For Structure Pipe for sale

S355jr S355j2h Round Structural Steel Tubing Seamless For Structure Pipe

Price Negotiable

Price: Negotiable

MOQ: 1

Delivery Time: 7~30 working days

Brand: BaoYang

Product Description

S355JR and S355J2H Round Seamless Steel Tubes for Structural Applications

1. Product Description:

S355JR and S355J2H Round Seamless Steel Tubes are engineered for structural applications that require high strength and ductility. These tubes are manufactured from low alloy steel and are seamless, ensuring uniform wall thickness and superior structural integrity. The S355 designation indicates the minimum yield strength of 355 MPa, while the JR and J2H grades denote varying levels of impact resistance.

2. Product Features:

Seamless Construction: Provides consistent wall thickness and enhanced resistance to pressure.
High Yield Strength: Offers a minimum yield strength of 355 MPa for robust structural support.
Impact Resistance: J2H grade has enhanced impact resistance for use in colder environments.
Weldability: Suitable for welding, facilitating easy integration into structural frameworks.
Corrosion Resistance: Offers resistance to atmospheric corrosion for extended service life.

3. Product Parameters:

Parameter	Description
Standards	EN 10210-2 (for seamless tubes)
Material	Low Alloy Steel (Seamless)
Grades	S355JR, S355J2H
Shape	Round
Size Range	Various diameters and wall thicknesses as per EN 10210-2
Length	Standard lengths, customizable upon request
Ends	Plain ends, beveled ends, threaded, or socket-weld ends
Surface Treatment	As-rolled, annealed, or normalized

4. Mechanical Properties:

Property	S355JR Requirements	S355J2H Requirements
Tensile Strength	≥440 MPa	≥440 MPa
Yield Strength	≥235 MPa	≥235 MPa
Elongation	≥21%	≥21%
Impact Energy	Varies by grade	Enhanced for J2H

5. Chemical Composition:

Element	Typical Range (%)
Carbon	0.16 - 0.24
Manganese	1.00 - 1.70
Phosphorus	≤0.025
Sulfur	≤0.025
Silicon	≤0.50

6. Product Applications:

Structural Framing: Used in building and construction for structural framing.
Mechanical Equipment: Ideal for manufacturing equipment that requires a strong and stable framework.
Piping Systems: Suitable for use in industrial piping systems for various fluids.
Infrastructure Projects: Employed in bridges, highways, and other large-scale infrastructure projects.