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10# Q355B JIS G3454 Carbon Steel Seamless Pipe | GB/T 699 Structural & Fluid Seamless Tube
- Combined low-carbon and high-strength grades for structure and fluid applications
- Q355B provides high strength for heavy load structural components
- 10# offers excellent ductility, formability and weldability
- JIS G3454 equivalence supports Japanese standard project requirements
- Wide size range and custom processing for machinery and construction projects
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Product Overview
10#, Q355B and JIS G3454 equivalent carbon steel seamless pipe form a practical grade group for structural and general fluid applications. 10# is a low-carbon grade with excellent ductility, cold formability and weldability, suitable for bending, flanging and low-pressure piping. Q355B is a high-strength low-alloy grade with significantly higher yield strength, designed for heavy load-bearing structures, mechanical frames and large-diameter support members.
JIS G3454 covers carbon steel pipes for pressure service in Japanese standard systems, and the equivalent grades in this group provide compatibility for projects requiring JIS-based material acceptance. These products are manufactured by hot rolling piercing and cold finishing processes, ensuring uniform wall thickness, good straightness and reliable mechanical properties.
This grade group is widely used in construction steel structures, bridge components, machinery manufacturing, forklift and equipment frames, low-to-medium pressure fluid lines, pipe piling and industrial ducting. It offers a balanced choice between economy, formability and load-bearing capacity.
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FAQs
10# pipe is used for low-pressure fluid lines, bent structures and parts requiring good formability.
Q355B is used for high-strength structural applications such as machinery frames, supports and heavy engineering components.
Yes, Q355B has good weldability, though preheating may be required for heavy sections.
Yes, we can supply equivalent grades and related test reports.
The MOQ is 5 ton for standard sizes.
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