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Welcome to Triton Alloys Inc.'s S355 Steel Knowledge Hub, your trusted source for technical guides, grade comparisons, fabrication insights, welding best practices, and EN 10025 structural steel resources.
Whether you're an engineer, procurement specialist, fabricator, contractor, or project manager, our expert articles help you understand S355JR, S355J0, S355J2, S355J2+N, S355K2, EN 10025 standards, structural steel applications, welding procedures, international equivalents, and material selection best practices.
Explore practical answers to common industry questions, compare steel grades, understand mechanical properties, and learn how to select the right structural steel solution for construction, infrastructure, offshore, mining, renewable energy, and heavy engineering projects.
S355 Comparisons
S355JR vs S355J2, S355 vs S275, ASTM equivalents and more.
Welding Guides
Procedures, electrodes, preheating and fabrication best practices.
Specifications
Mechanical properties, chemical composition and standards.
Why Engineers Choose S355 Steel
355 MPa
Minimum Yield Strength
630 MPa
Maximum Tensile Strength
EN10025
European Standard
Global
Industrial Applications
Expert Insights & Technical Articles on S355 Steel
Looking for something specific?
Browse our product pages or get in touch with our technical experts for personalized advice.
Frequently Asked Questions About S355 Steel
What is S355 steel?
S355 is a high-strength structural steel grade specified under EN 10025 with a minimum yield strength of 355 MPa.
Is S355 stronger than S275?
Yes. S355 provides higher yield strength and is commonly used in more demanding structural applications.
Can S355 steel be welded?
Yes. S355 offers excellent weldability and is suitable for various fabrication processes.
What is S355J2?
S355J2 is impact-tested at -20°C and is widely used where enhanced toughness is required.
