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EN 10025-2 S235JR High-strength Low-alloy (HSLA) Steel Plate

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EN 10025-2 S235JR is a European standard for hot-rolled structural steel. Widely used in fields such as construction, mechanical manufacturing, bridges, etc.

Standard :
EN 10025-2
Grade :
S235JR
Thickness :
0.8-30.0 mm
Width :
800-2500 mm
Length :
3000 - 12000 mm

Special thickness, width, and length can be negotiated separately.
We also provide customized processing services.If you have any questions, please contact us.

Overview

EN 10025-2 S235JR is a common non-alloy structural steel in European standards, widely used in construction, machinery manufacturing, bridges, and other fields.

Standard and Grade Designation

Material Standard: EN 10025-2 (Hot-rolled structural steel products)

Steel Grade: S235JR

"S" = Structural steel

"235" = Minimum yield strength (235 MPa)

"JR" = impact toughness at room temperature (27 Joules at +20°C)

Available Forms:

Hot-rolled plates, sheets, bars, and structural sections.

Other Information

Welding & Fabrication:

Good weldability but may require preheating for thick sections (due to rimmed steel nature).

Suitable for cold forming and machining.

Comparison with Similar Grades:

Grade	Yield Strength (MPa)	Impact Test Temp.	Impact Toughness (KV)	Differences In Applicable Scenarios
S235JR	≥ 235	+20℃	≥ 27 J	Lower impact toughness. Suitable for normal temperature environment
S235J0	≥ 235	0℃	≥ 27 J	Intermediate toughness. Suitable for slightly low-temperature environments (such as mild winter areas)
S235J2	≥ 235	-20℃	≥ 27 J	Better low-temperature toughness. Suitable for cold regions with high low-temperature toughness requirements

FAQ

Q1:

What are the weldability characteristics of high-strength low-alloy steel plates?

High-strength low-alloy steel plates offer excellent weldability. As their carbon content is typically low (below 0.2%), they present a lower risk of cracking during welding compared to standard high-strength steel plates and generally do not require complex preheating treatments.

Q2:

Why are high-strength low-alloy steels the preferred choice in construction and automotive manufacturing?

The key advantage of high-strength low-alloy steels is weight reduction. As they offer greater strength, thinner sheets can be used to withstand the same loads, thereby reducing the overall weight of the structure; in the automotive sector, this leads to improved fuel efficiency.

Q3:

What is high-strength low-alloy steel (HSLA)?

High-strength low-alloy steel (HSLA) is a type of steel in which small amounts of alloying elements (such as niobium, vanadium, titanium or copper) are added to enhance its mechanical properties. Compared to traditional carbon steel, it offers higher yield strength and better corrosion resistance whilst maintaining good weldability and formability.