Q275 Carbon Steel Bar
Q275 Carbon Steel Bar is solid bar stock adhering to the Chinese national standard (GB/T 700) for general structural steel. The "Q" stands for Yield Strength, and "275" indicates a guaranteed minimum yield strength of 275 MPa (for diameters ≤ 16 mm). This grade of steel offers a beneficial combination of moderate strength, good ductility, and excellent weldability, making it a versatile material for various engineering applications. Q275 bar is commonly used for manufacturing structural components, axles, tie rods, mechanical parts, and general purpose fabricated components in construction, infrastructure, and machinery where reliable strength and ease of processing are required.
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- Commodity name: Q275 Carbon Steel Bar
Q275 Carbon Steel Bar is solid bar stock adhering to the Chinese national standard (GB/T 700) for general structural steel. The "Q" stands for Yield Strength, and "275" indicates a guaranteed minimum yield strength of 275 MPa (for diameters ≤ 16 mm). This grade of steel offers a beneficial combination of moderate strength, good ductility, and excellent weldability, making it a versatile material for various engineering applications. Q275 bar is commonly used for manufacturing structural components, axles, tie rods, mechanical parts, and general purpose fabricated components in construction, infrastructure, and machinery where reliable strength and ease of processing are required.
Q275 Carbon Steel Bar Description
Applications
Construction & Infrastructure Machinery Manufacturing Fastener Production Railway Equipment Structural Components Material Handling General Engineering Automotive Components Bridge Components Tooling & Fixtures Product Parameters
Product Name Q275 Carbon Steel Bar Type Round Bar, Square Bar, Flat Bar, Hexagonal Bar Diameter / Thickness 10mm - 300mm (Customizable) Length 6m, 9m, 12m, or Random Length Standard GB/T 700 / GB/T 1591 (Structural Steel Standards) Surface Hot Rolled (Black Surface), Peeled, Drawn, Polished Scope of Application General structural frames, shafts, connecting rods, machine structural components, construction hardware, and parts requiring moderate strength and good weldability. Certificate ISO, SGS, BV, LR, CCS, etc. Production Technology Hot Rolling, Cold Drawing End Finish Sheared, Saw Cut, Forged Approximate grade comparison table
Standard System UNS GB/T (China) EN (Approx.) SAE/AISI (Approx.) JIS (Approx.) W. Nr. (German) Grade (Approx.) K03007 Q275 (Common Structural Steel) S275 (1.0044) A570 Gr. 40 SS400 St44 Chemical Composition
Element C (Carbon) Mn (Manganese) Si (Silicon) P (Phosphorus) S (Sulfur) Composition (wt%) ≤0.30 ≤1.20 ≤0.50 ≤0.045 ≤0.045 Mechanical Properties
Property Standard Requirement (GB/T) Yield Strength (ReH) (MPa) (Diameter ≤ 16mm) ≥275 Tensile Strength (Rm) (MPa) (Diameter ≤ 16mm) 450 - 620 Elongation A5(%) ≥22 Impact Energy (J) (Optional) ≥20 (at 0℃) Physical Performance
Property Density (g/cm3) Modulus of Elasticity (GPa) Mean Coeff. of Thermal Expansion (10−6/deg C) (20-100 deg C) Thermal Conductivity (W/m.K) (20 deg C) Value (Approx.) ~7.85 ~200 ~11.5 ~50 -
Q275 Carbon Steel Bar - Stock Warehouse
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Q275 Carbon Steel Bar - Product Inspection
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Q275 Carbon Steel Bar - Product Measurement
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Q275 Carbon Steel Bar- Product Packaging
Taigang Yilian
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