s420nl steel grade equivalent jis

S420N Steel Grade Equivalent JIS

As a premier exporter and manufacturer of high-quality structural steel plates, Gangsteel specializes in producing EN 10025-3 compliant materials, including the versatile S420N steel grade.

S420N is a normalized fine-grain structural steel with a minimum yield strength of 420 MPa and excellent impact toughness at -20°C, ideal for welded constructions in bridges, cranes, and offshore structures.

Identifying its equivalent in the Japanese Industrial Standards (JIS) is crucial for global project compatibility. The closest JIS equivalent to S420N is SM570 (JIS G 3106), a rolled steel for welded structures with higher yield strength (460 MPa) and similar weldability.

Our S420N 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.

What is S420N Steel Grade?

S420N steel grade, designated as 1.8902 under the European standard EN 10025-3, belongs to the family of weldable fine-grain steels. The "N" suffix indicates its suitability for normalized delivery with a minimum impact energy of 40 Joules at -20°C in the longitudinal direction, making it perfect for moderate cold climates and demanding environments. Compared to similar grades like en 10025 3 s420nl normalized structural steel plate, S420N offers balanced low-temperature performance without compromising on strength.

Gangsteel produces S420N 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.

S420N Steel Grade Equivalent JIS

The JIS equivalent to S420N steel grade is SM570 (JIS G 3106), a rolled steel for welded structures with 460 MPa yield and similar weldability; specify normalization and -20°C impact testing for full equivalence.

Equivalent Grades to S420N

Why Choose Gangsteel for S420N Steel?

With state-of-the-art mills and a commitment to ISO-certified quality, Gangsteel delivers S420N 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 s420n normalized structural steel plate product page or contact our sales team today.

Summary

S420N steel grade equivalent JIS is SM570, offering comparable yield strength (460 MPa vs. 420 MPa), tensile strength, and weldability. When normalized and impact-tested at -20°C, SM570 matches S420N's low-temperature toughness for welded structures in moderate cold environments. S420N from Gangsteel ensures durability in bridges, cranes, and offshore projects. Explore our range for customized solutions and competitive global supply.

FAQ

What is the JIS equivalent to S420N steel grade?

SM570 (JIS G 3106) is the closest equivalent, with 460 MPa yield and similar weldability; specify normalization and -20°C impact testing for full equivalence.

How do S420N and SM570 differ chemically?

S420N has lower carbon (0.20% vs. 0.20%), phosphorus (0.025% vs. 0.035%), and sulfur (0.020% vs. 0.035%) for enhanced cold toughness, but both have comparable CEV (≤0.48) for weldability.

Are their mechanical properties identical?

SM570 has higher yield (460 MPa vs. 420 MPa) and tensile strength (570–720 MPa vs. 520–680 MPa) but similar elongation (19%). Impact at -20°C aligns if SM570 is normalized.

Can SM570 replace S420N in cold environments?

Yes, if normalized and tested for 40 J at -20°C, SM570 matches S420N's performance for applications like bridges or offshore platforms.

What if I need a higher-strength JIS equivalent?

For S460N equivalents, consider SM570 with enhanced specs; contact Gangsteel for cross-standard guidance.