Description

Technical Parameters

Products Description

S275JR is a low-carbon manganese structural steel that complies with EN 10025-2 standard. It offers excellent weldability and workability. With a carbon content of no more than 0.25%, it ensures good toughness and ductility, making it highly suitable for cutting, drilling, punching, and machining.

In terms of mechanical properties, S275JR provides a minimum yield strength of 275 MPa, a tensile strength range of 410–560 MPa, and an elongation of 20% or more. It also delivers a minimum impact energy of 27 J at room temperature, demonstrating reliable impact resistance and structural safety.

S275JR

Thanks to these advantages, S275JR is widely used in building frameworks, bridges, road guardrails, power transmission towers, machinery bases, and equipment supports. It is a versatile structural steel that combines both strength and toughness.

Products Specification

S275JR carbon steel plate specification	Thickness	≤400mm
	Width	≤4200mm
	Length	≤18000mm
Steel Number	1.0044
S275JR carbon steel plate density	7.85g/m3
Deep processing	Cutting, welding, bending, drilling, etc.
Third party inspection	SGS, BV, Intertek, etc.
Delivery state	HR, AR, N

Chemical composition of ladle sample of steel S275JR in accordance with EN 10025-2, %

C for nominal thickness in mm			Mn	P	S	N	Cu
≤ 16	˃16 ≤ 40	˃ 40
≤ 0.21	≤ 0.21	≤ 0.22	≤ 1.50	≤ 0.035	≤ 0.035	≤ 0.012	≤ 0.55

Mechanical properties of steel S275JR

Nominal thickness, mm	Minimum yield strength, MPa	Strength limit, MPa
<3	275	430-580
≥3 ≤ 16	275	410-560
> 16 ≤ 40	265	410-560
> 40 ≤ 63	255	410-560
> 63 ≤ 80	245	410-560
> 80 ≤ 100	235	410-560
> 100 ≤ 150	225	400-540
> 150 ≤ 200	215	380-540
> 200 ≤ 250	205	380-540
> 250 ≤ 400	195	380-540

Steel S275JR analogues

Germany	St44-2
France	E28-2
UK	43B
Europe (outdated)	Fe430B
Sweden	1412-00
Norway	NS12142

Applications of S275JR Carbon Steel Plate

S275JR is a low-carbon manganese structural steel that complies with the EN 10025-2 standard. It offers excellent weldability and machinability, with a minimum yield strength of 275 MPa, a tensile strength range of 410–560 MPa, and an elongation of ≥ 20%, ensuring reliable performance under moderate loads and impact conditions.

Structural Construction

S275JR steel plate is widely used in industrial buildings, residential constructions, and public facilities for frameworks, including beams, columns, trusses, and floor supports. It is also commonly applied in secondary load-bearing components and support plates for bridges, providing stability and safety for the overall structure.

Industrial Manufacturing and Machinery

In machinery manufacturing, S275JR is used for equipment bases, brackets, frames, platforms, and load-supporting components. Its excellent workability allows for cutting, welding, punching, and drilling, meeting the structural demands of heavy machinery and industrial equipment.

Mining and Heavy Equipment

S275JR steel plate is suitable for mining machinery, transport equipment, and crane structures, capable of withstanding high dynamic loads and vibrations while maintaining durability and safety.

General Engineering Applications

Additionally, S275JR is applied in tanks, pipe supports, storage systems, road guardrails, and components of power transmission towers, reflecting its versatility and cost-effectiveness.

Thanks to its reliable mechanical properties and wide range of applications, S275JR has become one of the most commonly used structural steels in industrial, infrastructure, and machinery projects.

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