What is s275nl2 and s275nl steel material？

What is S275NL2 and S275NL Steel Material?

As a premier exporter and manufacturer of high-quality structural steel plates, Gangsteel specializes in producing EN 10025-3 compliant materials, including the versatile S275NL steel grade. While S275NL is a well-established standard grade, S275NL2 appears in some supplier catalogs as a variant but is not officially defined in EN 10025-3. Both are normalized fine-grain structural steels suited for welded constructions in low-temperature environments, offering excellent toughness and weldability. For a comprehensive overview of our en 10025 3 normalized steel plate offerings, explore our full range.

What is S275NL Steel?

S275NL (EN 10025-3, designation 1.0491) is a low-alloy, weldable fine-grain structural steel with a minimum yield strength of 275 MPa. The "NL" suffix indicates normalized delivery and Charpy V-notch impact testing at -50°C (minimum 27 J longitudinal), making it ideal for sub-zero applications like bridges and offshore structures. It is supplied in normalized (+N) or normalized rolled conditions, with thicknesses up to 250 mm. Compared to the milder en 10025 3 s275n normalized structural steel plate (impact at -20°C), S275NL provides superior cold toughness.

Gangsteel produces S275NL with precise CEV control (≤0.42) for optimal weldability and compliance with international standards.

What is S275NL2 Steel?

S275NL2 is not a standard grade in EN 10025-3 but is listed by some manufacturers (e.g., certain Asian suppliers) as a normalized fine-grain structural steel similar to S275NL, potentially with impact testing at -40°C (minimum 27 J longitudinal) for intermediate low-temperature performance. It shares the 1.0490 material number (overlapping with S275N) and is used in construction machinery, cranes, and welded vessels. However, due to non-standard status, always verify specifications; it may be a proprietary or equivalent designation for enhanced toughness variants. For standard alternatives, refer to our en 10025 3 s275nl normalized structural steel plate.

Chemical Composition Comparison

Both grades feature low-carbon profiles for weldability, but S275NL has tighter impurity controls. Values are maximum % unless noted (ladle analysis, ≤100 mm thickness).

*Note: S275NL2 data from supplier specs; CEV calculated per formula for both.

Mechanical Properties Comparison

Properties for normalized condition; S275NL2 values based on available supplier data (impact at -40°C/-50°C variance noted).

*Notes: Elongation per Lo = 5.65 √So. S275NL2 may align closer to S275NL at -50°C in some specs, but non-standard nature requires certification checks.

Applications

• S275NL: Bridges, cranes, offshore platforms, and cold-climate structures where -50°C toughness is essential.
• S275NL2: Similar uses in mining equipment, excavators, and pressure vessels, potentially for transitional temperature ranges (-40°C).

For higher-strength options, explore en 10025 3 s355nl normalized structural steel plate or en 10025 3 s420nl normalized structural steel plate.

Why Choose Gangsteel?

Gangsteel supplies certified S275NL plates with full traceability. While we focus on standard EN 10025-3 grades, contact us for custom variants like S275NL2 equivalents.

Summary

S275NL is a standard EN 10025-3 normalized fine-grain steel with 275 MPa yield and -50°C impact toughness, perfect for extreme cold welded structures. S275NL2, a non-standard variant from select suppliers, offers comparable properties with potential -40°C testing, suitable for similar but less severe applications—always confirm specs for compliance.

FAQ

What is the key difference between S275NL and S275NL2?

S275NL is officially defined in EN 10025-3 with guaranteed 27 J impact at -50°C, while S275NL2 is a supplier-specific grade often with similar strength but impact tested at -40°C, making S275NL better for arctic conditions.

Is S275NL2 compliant with EN 10025-3?

No, EN 10025-3 does not list S275NL2; standard grades are S275N/NL, S355N/NL, etc. S275NL2 may be a proprietary name for a near-equivalent material, so mill certificates are crucial for project approval.

What are the common equivalents for S275NL and S275NL2?

For S275NL: DIN StE 285, ASTM A633 Gr. A, JIS SM490B. S275NL2 equivalents are less standardized but align with S275NL, such as GB Q295NL.

Can both grades be used interchangeably in welding?

Yes, due to low CEV (≤0.42), but S275NL requires verification for -50°C service; preheating is minimal for both (none ≤40 mm). Use EN 1011-2 guidelines.

What thicknesses are available for these materials at Gangsteel?

S275NL up to 250 mm; for S275NL2-like variants, custom inquiries welcome via our en 10025 3 normalized steel plate page.