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EN 10025-3 S420NL Equivalent Grades

As a premier exporter and manufacturer of high-quality structural steel plates, Gangsteel specializes in producing EN 10025-3 compliant materials, including the versatile S420NL steel grade.

S420NL is a normalized fine-grain structural steel designed for welded constructions requiring enhanced toughness at low temperatures, down to -50°C.

Ideal for heavy-duty applications in bridges, cranes, and offshore structures, our S420NL plates are delivered in normalized or normalized rolled conditions to ensure superior weldability and impact resistance.

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

 

What is EN 10025-3 S420NL Steel?

EN 10025-3 S420NL steel, designated as 1.8912 under the European standard EN 10025-3, belongs to the family of weldable fine-grain steels. The "NL" suffix indicates its suitability for normalized delivery with a minimum impact energy of 27 Joules at -50°C in the longitudinal direction, making it perfect for cold climates and demanding environments. Compared to similar grades like en 10025 3 s420n normalized structural steel plate, S420NL offers improved low-temperature performance without compromising on strength.

Gangsteel produces S420NL plates in thicknesses up to 250 mm, with precise control over chemical composition to meet CEV limits for optimal weldability. Our plates are rigorously tested to comply with international standards, ensuring reliability for global projects.

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Equivalent Grades to S420NL

Standard

Grade

DIN 17102

TStE 420

ASTM

A572 Gr. 65

JIS

SM570

GB

Q420B

 

Why Choose Gangsteel for S420NL Steel?

With state-of-the-art mills and a commitment to ISO-certified quality, Gangsteel delivers S420NL plates tailored to your specifications. Stocked in various sizes and ready for immediate export worldwide. For detailed pricing and availability, visit our en 10025 3 s420nl normalized structural steel plate product page or contact our sales team today.

 

Summary

EN 10025-3 S420NL equivalent grades include ASTM A633 Gr. E, DIN TStE 420, and others like A656 Gr. 80 or A709 Gr. 50W, with similar normalized fine-grain properties and low-temperature toughness. While exact matches vary, A633 Gr. E aligns closely with S420NL's 420 MPa yield and -50°C impact for welded structures in cold environments. S420NL from Gangsteel ensures seamless sourcing with certified plates for optimal performance.

 

FAQ

What is the ASTM equivalent to S420NL?

ASTM A633 Gr. E is the closest, with 345–415 MPa yield and low-temperature toughness; A656 Gr. 80 (552 MPa yield) for higher strength alternatives.

How do S420NL and its ASTM equivalents differ chemically?

S420NL has tighter P (0.025% max vs 0.035%) and S (0.020% vs 0.040%), with similar CEV (0.48) for weldability.

Are mechanical properties identical between S420NL and A633 Gr. E?

A633 Gr. E has lower yield (345 MPa vs 420 MPa) but similar tensile (550–690 MPa) and elongation (23%). Impact at -50°C aligns if specified for A633.

Can ASTM equivalents replace S420NL in cold environments?

Yes, if normalized and tested for 27 J at -50°C, A633 Gr. E matches S420NL for applications like bridges or offshore.

What if I need a higher-strength ASTM equivalent?

For S460NL, use A633 Gr. D (415 MPa yield) or A709 Gr. 50W; contact Gangsteel for cross-standard guidance.

 

 

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