What is S355 in USA?

Gangsteel, a leading manufacturer and exporter of structural steel plates, supplies premium S355 equivalent materials for construction, bridges, and heavy machinery applications. S355 is a European structural steel grade from EN 10025-2, known for its high yield strength of 355 MPa. In the USA, S355 is equivalent to ASTM A572 Grade 50, offering similar strength and weldability for load-bearing structures. This article explores what S355 is in the USA, detailing its equivalents, chemical compositions, mechanical properties, and applications, helping engineers and fabricators select suitable alternatives for US projects.

s355 in usa Overview of S355 Steel

S355 is a non-alloy structural steel grade in EN 10025-2, with sub-grades like S355JR, S355J0, S355J2, and S355K2 based on impact toughness. It is used for welded structures in Europe due to its high strength and ductility. In the USA, S355 is equivalent to ASTM A572 Grade 50, a high-strength low-alloy steel for construction. Gangsteel offers S355 equivalents with ASTM certification, including EN 10025-2 S355J2 steel and EN 10025-2 S355K2 steel, ensuring compliance for global projects.

s355 in usa Grade Equivalent

S355 has direct equivalents in US standards like ASTM. The table below maps S355 sub-grades to US equivalents:

Key Notes on Grade Mapping:

• ASTM A572 Gr 50: Primary equivalent for S355, with yield 345 MPa, used in bridges and buildings.
• A709 Gr 50: For highway bridges, matching S355's strength with weathering options.

These mappings are functional, but verify for specific codes. Gangsteel provides dual-certified plates, including EN 10025-2 S235J2 steel and EN 10025-2 S355JR+N.

s355 in usa Chemical Composition Comparison

Chemical compositions are similar, with low carbon for weldability. The table below compares EN 10025-2 S355JR (representative) with ASTM A572 Gr 50 (% by weight, max values):

Key Notes on Chemical Composition:

• EN 10025-2 has stricter P/S for toughness.
• ASTM A572 Gr 50 has broader limits but comparable weldability.

Gangsteel’s plates meet multiple standards for easy equivalence.

s355 in usa Mechanical Properties Comparison

Mechanical properties are close, with EN 10025-2 offering specified impact toughness. The table below compares EN 10025-2 S355JR with ASTM A572 Gr 50 (for plates up to 16 mm):

Key Notes on Mechanical Properties:

• Both have similar strength, but EN 10025-2 guarantees impact.
• ASTM A572 Gr 50 is versatile but may need testing for cold use.

Gangsteel provides tested plates for reliable performance.

s355 in usa Applications and Substitution Considerations

S355 is used in construction (bridges), offshore (platforms), and machinery (cranes). In the USA, A572 Gr 50 substitutes for:

• High-rise buildings and heavy bridges.
• Wind turbines and moderate-cold machinery.

Substitution considerations:

• Standards Compliance: EN for Europe, ASTM for US.
• Toughness: EN has impact testing; ASTM may not.
• Cost/Availability: ASTM in US, EN in Europe; Gangsteel bridges this.

For low-temperature, check EN 10025-2 S355J2 steel or EN 10025-2 S355K2 steel.

Why Choose Gangsteel for S355 Equivalents?

Gangsteel is a trusted supplier of S355 equivalents, offering:

• Certified Quality: Plates undergo ultrasonic testing and chemical analysis to meet EN/ASTM standards.
• Customization: Available in thicknesses from 6–300 mm, with options for normalization.
• Global Supply: Competitive pricing and reliable delivery worldwide.
• Technical Support: Guidance on equivalents like EN 10025-2 S275J2 steel or EN 10025-2 S355JR+N.

Gangsteel Solution

S355 in the USA is equivalent to ASTM A572 Grade 50, with similar high strength and weldability for structural use. Gangsteel’s high-quality plates ensure compliance for your projects. For more, explore our BS EN 10025-2 material grade guide.

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Gangsteel explores S355 equivalents in the USA, with grade mappings, chemical, and mechanical comparisons.Keywords: S355 USA equivalent, S355 ASTM, S355 properties, S355 applications