En 10025 s275nl equivalent JIS

EN 10025 S275NL Equivalent JIS Grade

As a leading exporter and manufacturer of high-quality structural steel plates, Gangsteel specializes in producing EN 10025-3 compliant materials, including the S275NL steel grade.

S275NL is a normalized fine-grain structural steel designed for welded constructions, offering excellent toughness at low temperatures down to -50°C.

Identifying its equivalent in the Japanese Industrial Standards (JIS) is essential for global project compatibility.

Our S275NL plates are supplied in normalized or normalized rolled conditions, ensuring superior weldability and performance.

For a comprehensive overview of our en 10025 3 normalized steel plate offerings, explore our full range.

S275NL and Its JIS Equivalent

S275NL (EN 10025-3, designation 1.0491) is a low-alloy, fine-grain structural steel with a minimum yield strength of 275 MPa and a minimum Charpy V-notch impact energy of 27 Joules at -50°C, ideal for cold-environment applications like bridges and offshore structures. The closest JIS equivalent is SM490B (JIS G 3106), a rolled steel for welded structures with comparable yield strength, tensile properties, and weldability. When normalized, SM490B can achieve similar low-temperature toughness, though impact testing at -50°C must be specified to match S275NL’s requirements.

Gangsteel supplies S275NL and equivalent grades with full certifications, ensuring seamless substitution for international projects. For related grades, see en 10025 3 s275nl normalized structural steel plate or en 10025 3 s355nl normalized structural steel plate.

Equivalent Grades Table

Chemical Composition Comparison

Both grades feature low-carbon profiles for weldability (ladle analysis, max % unless noted, ≤100 mm thickness).

*Note: S275NL’s tighter C, P, and S limits enhance cold toughness; SM490B’s composition supports weldability when normalized.

Mechanical Properties Comparison

Properties for normalized condition (SM490B as normalized to match S275NL; ≤16 mm thickness, minimum values).

*Notes: SM490B’s higher yield (325 MPa) and tensile strength make it slightly stronger; impact at -50°C requires specific normalization.

Applications and Substitution Notes

• S275NL: Used in cold-climate bridges, offshore platforms, and cranes requiring -50°C toughness.
• SM490B: Suits welded structures like buildings and machinery; when normalized and impact-tested at -50°C, it matches S275NL for arctic use.

When substituting, verify SM490B’s normalization and impact testing to ensure -50°C performance. For higher strength, consider en 10025 3 s420nl normalized structural steel plate.

Why Choose Gangsteel?

Gangsteel offers ISO-certified S275NL and JIS-equivalent plates with dual certifications, ensuring global compatibility. Contact us for custom solutions.

Summary

The JIS equivalent to EN 10025-3 S275NL is SM490B (JIS G 3106), offering comparable yield strength (325 MPa vs. 275 MPa), tensile strength, and weldability. When normalized and impact-tested at -50°C, SM490B matches S275NL’s low-temperature toughness for welded structures in cold environments.

FAQ

What is the JIS equivalent to S275NL?

SM490B (JIS G 3106) is the closest equivalent, with 325 MPa yield and similar weldability; specify normalization and -50°C impact testing for full equivalence.

How do S275NL and SM490B differ chemically?

S275NL has lower carbon (0.16% vs. 0.20%), phosphorus (0.025% vs. 0.035%), and sulfur (0.020% vs. 0.035%) for enhanced cold toughness, but both maintain similar CEV (≤0.43).

Are their mechanical properties identical?

SM490B has higher yield (325 MPa vs. 275 MPa) and tensile strength (490–610 MPa vs. 370–510 MPa) but lower elongation (17% vs. 24%). Impact at -50°C aligns if SM490B is normalized.

Can SM490B replace S275NL in cold environments?

Yes, if normalized and tested for 27 J at -50°C, SM490B matches S275NL’s toughness for applications like arctic bridges or offshore platforms.

What if I need a higher-strength JIS equivalent?

For S355NL equivalents, consider SM520B/C (JIS G 3106); contact Gangsteel for cross-standard guidance.