Home > News >

 

 

BS EN 10025 S275 Equivalent Grades

As a leading exporter and manufacturer of high-quality structural steel plates, Gangsteel specializes in producing BS EN 10025-compliant materials, including the S275 steel grade.

S275 is a non-alloy structural steel under BS EN 10025-2, widely used for general construction and welded applications due to its balanced strength, ductility, and weldability.

Identifying equivalent grades in other international standards is essential for global project compatibility.

Our S275 plates are supplied in as-rolled, normalized, or thermomechanically rolled conditions, depending on the variant (e.g., S275JR, S275J0, S275J2).

For a comprehensive overview of our en 10025 3 normalized steel plate offerings, including related grades like en 10025 3 s275nl normalized structural steel plate, explore our full range.

 

Overview of BS EN 10025 S275

S275 (BS EN 10025-2, designation 1.0044 for S275JR) is a low-carbon structural steel with a minimum yield strength of 275 MPa (for thicknesses ≤16 mm). It is available in variants:

  • S275JR: Impact tested at +20°C (27 J minimum).
  • S275J0: Impact tested at 0°C (27 J minimum).
  • S275J2: Impact tested at -20°C (27 J minimum).

These grades are suitable for buildings, bridges, and machinery, offering good weldability but not specifically designed for extreme low-temperature toughness like en 10025 3 s275n normalized structural steel plate. Equivalent grades in other standards are selected based on comparable yield strength, tensile properties, and weldability, though impact testing and delivery conditions may differ.

 

Equivalent Grades to S275

The table below lists the primary equivalent grades for S275 (focusing on S275JR unless noted) in major international standards.

Standard

Equivalent Grade

Specification

Key Similarities

Notes

ASTM (USA)

A36

ASTM A36/A36M

Yield: ~250–275 MPa; Tensile: 400–550 MPa; General structural use

Slightly lower yield; no mandatory impact test; widely used in US construction.

ASTM (USA)

A572 Gr. 42

ASTM A572/A572M

Yield: 290 MPa; Tensile: 415–550 MPa; High-strength low-alloy

Closer yield match; normalized option aligns with S275J2 for -20°C impact.

DIN (Germany)

St 44-2

DIN 17100

Yield: 275 MPa; Tensile: 410–540 MPa; Structural steel

Near-identical properties; historical standard replaced by EN 10025.

JIS (Japan)

SS400

JIS G 3101

Yield: ~245–275 MPa; Tensile: 400–510 MPa; Rolled steel

Common for general structures; no standard impact test.

GB (China)

Q235B

GB/T 700

Yield: 235–275 MPa; Tensile: 370–500 MPa; Carbon structural steel

Economical substitute; verify impact properties for critical uses.

*Note: For low-temperature applications (-50°C), consider en 10025 3 s275nl normalized structural steel plate or ASTM A633 Gr. A.

 

Chemical Composition Comparison

S275 and its equivalents share low-carbon profiles for weldability (max % unless noted, ≤100 mm thickness).

Element

S275 (EN)

A36 (ASTM)

A572 Gr. 42 (ASTM)

St 44-2 (DIN)

SS400 (JIS)

Q235B (GB)

Carbon (C)

0.21

0.26

0.21

0.21

0.30

0.20

Silicon (Si)

0.40

0.40

0.40

-

-

0.35

Manganese (Mn)

1.50

1.03

1.35

1.40

-

1.40

Phosphorus (P)

0.035

0.040

0.030

0.050

0.050

0.045

Sulfur (S)

0.035

0.050

0.030

0.050

0.050

0.045

Nitrogen (N)

0.012

-

-

-

-

-

Copper (Cu)

0.55

-

-

-

-

-

CEV

0.40

~0.40

~0.41

~0.40

~0.42

~0.38

*Note: S275’s low P/S enhance ductility; CEV ensures weldability.

 

Mechanical Properties Comparison

Properties for ≤16 mm thickness, as-rolled or normalized (S275J2/A572 Gr. 42 may be normalized).

Property

S275JR (EN)

S275J0 (EN)

S275J2 (EN)

A36 (ASTM)

A572 Gr. 42 (ASTM)

St 44-2 (DIN)

SS400 (JIS)

Q235B (GB)

Yield Strength (MPa)

275

275

275

250

290

275

245

235

Tensile Strength (MPa)

410–560

410–560

410–560

400–550

415–550

410–540

400–510

370–500

Elongation (%)

23

23

23

20

20

22

21

26

Charpy Impact (J)

27 at +20°C

27 at 0°C

27 at -20°C

Not required

27 at -20°C (if spec.)

Not required

Not required

Not required

*Notes: S275 variants provide defined impact values; most equivalents lack standard impact testing unless specified.

 

Applications and Substitution Notes

S275 is used in general construction, bridges, and machinery. Equivalents like ASTM A36, JIS SS400, and GB Q235B suit similar roles but may lack impact testing unless specified (e.g., A572 Gr. 42 for S275J2). Verify delivery condition and toughness for critical applications. For higher strength, explore en 10025 3 s355nl normalized structural steel plate or en 10025 3 s420nl normalized structural steel plate.

 

Why Choose Gangsteel?

Gangsteel offers ISO-certified S275 plates and equivalents in custom sizes with global export readiness. Contact us for dual-certified options at sales@gangsteel.com.

 

Summary

BS EN 10025-2 S275 equivalents include ASTM A36 (250 MPa yield), A572 Gr. 42 (290 MPa), DIN St 44-2 (275 MPa), JIS SS400 (245 MPa), and GB Q235B (235 MPa). These grades match S275’s general structural properties, but S275JR/J0/J2 provide defined impact testing (+20°C to -20°C), unlike most equivalents unless specified.

 

FAQ

What is the closest ASTM equivalent to S275?

ASTM A36 (250 MPa yield, 400–550 MPa tensile) is closest for S275JR in general use; A572 Gr. 42 (290 MPa) aligns better with S275J2 for -20°C impact.

How does JIS SS400 compare to S275?

SS400 (245 MPa yield, 400–510 MPa tensile) is similar to S275JR but lacks standard impact testing, making it less suitable for low-temperature applications.

Is GB Q235B a direct substitute for S275?

Q235B (235 MPa yield, 370–500 MPa tensile) is a close match for S275JR but lacks impact testing; verify for critical or cold-climate uses.

Can S275 equivalents be used without testing?

Yes for non-critical applications; for low-temperature or safety-critical projects, confirm impact properties and delivery condition (e.g., normalized for A572 Gr. 42).

What if I need a low-temperature equivalent to S275?

Use S275NL (EN 10025-3) or ASTM A633 Gr. A for -50°C toughness, as standard S275 equivalents lack guaranteed cold performance.

 

Other Products