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Q355B Carbon Steel Flat Bar | GB/T 1591 A108 Gr.1018 S355JR Hot Rolled Flat Steel Bar
- High yield & tensile strength for heavy load structural applications
- Strictly comply with GB/T 1591, match A108 Gr.1018 and S355JR standards
- Good weldability and formability for easy processing
- Uniform dimension & smooth surface, low defect rate
- Wide size range, customizable cutting for project needs
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Product Overview
Q355B Carbon Steel Flat Bar is hot rolled low alloy high strength flat steel manufactured under GB/T 1591 standard. It is equivalent to ASTM A108 Gr.1018 and EN S355JR grades. This flat bar features excellent mechanical performance, reliable impact resistance at room temperature, great welding and bending property. Widely used in steel structure frameworks, mechanical parts manufacturing, engineering supports, trailer frames and general metal fabrication. Available in multiple thickness & width options, we can provide fixed-length cutting for global bulk orders.
Chemical & Mechanical Property Snapshot
Detailed Technical Specifications
Size Specification Table
Product Comparison Table
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FAQs
Q355B follows GB/T 1591, its equivalent grades are ASTM A108 Gr.1018 and EN S355JR.
It is used for building steel structures, machine bases, trailer frames, brackets, agricultural equipment and heavy load fabrication projects.
Yes, custom cutting service is available according to your drawing requirements.
MOQ is 5 tons.
Yes, SGS, BV and other third-party inspections are supported.
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