Q235-A Carbon Steel Plate
Q235-A Carbon Steel Plate is a Chinese national standard (GB/T 700) grade of general structural carbon steel. The "Q" stands for Yield Strength, and "235" indicates a guaranteed minimum yield strength of 235 MPa（for plates ≤16mm thick). The "-A" designation indicates the lowest quality level among the Q235 grades, typically having the highest allowable sulfur (S) and phosphorus (P) content and requiring less stringent impact testing. This steel offers good weldability, plasticity, and moderate strength. Q235-A plate is one of the most common and versatile structural steels used in construction, bridges, general engineering, and manufacturing for structural parts and general components where basic mechanical properties and low cost are prioritized.
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- Commodity name: Q235-A Carbon Steel Plate
Q235-A Carbon Steel Plate is a Chinese national standard (GB/T 700) grade of general structural carbon steel. The "Q" stands for Yield Strength, and "235" indicates a guaranteed minimum yield strength of 235 MPa（for plates ≤16mm thick). The "-A" designation indicates the lowest quality level among the Q235 grades, typically having the highest allowable sulfur (S) and phosphorus (P) content and requiring less stringent impact testing. This steel offers good weldability, plasticity, and moderate strength. Q235-A plate is one of the most common and versatile structural steels used in construction, bridges, general engineering, and manufacturing for structural parts and general components where basic mechanical properties and low cost are prioritized.
Q235-A Carbon Steel Plate Description
Applications
Construction & Infrastructure Structural Fabrication General Engineering Machinery Manufacturing Storage Tanks Bridges (Secondary) Railway Components Container Manufacturing Industrial Equipment Agricultural Machinery Product Parameters
Product Name Q235-A Carbon Steel Plate Type Plate, Sheet, Structural Steel Thickness 3mm - 150mm (Customizable) Length 6000mm, 9000mm, 12000mm, etc. (Customizable) Width 1250mm, 1500mm, 2000mm, 2500mm, 3000mm, etc. (Customizable) Standard GB/T 700 (Equivalent to ASTM A36, JIS SS400, DIN St37-2) Surface Black, Clean, Shot Blasting and Painting Scope of Application General engineering and structural applications, including light construction, factory buildings, bridges, general machinery parts, and non-critical welded structures. Certificate ISO, SGS, BV, LR, DNV, CCS, etc. Production Technology Hot Rolling Edge Processing Shearing, Cutting, Beveling Approximate grade comparison table
Standard System UNS GB/T (China) EN (Approx.) SAE/AISI (Approx.) JIS (Approx.) W. Nr. (German) Grade (Approx.) K02502 Q235A (Ordinary carbon structural steel) S235JR (1.0038) A36 SS400 St37-2 Chemical Composition
Element C (Carbon) Mn (Manganese) Si (Silicon) P (Phosphorus) S (Sulfur) Composition (wt%) ≤0.22 0.30 - 0.70 ≤0.35 ≤0.045 ≤0.050 Mechanical Properties
Property Standard Requirement (GB/T) Yield Strength (ReH) (MPa) (Thickness≤16mm) ≥235 Tensile Strength (Rm) (MPa) 370 - 500 Elongation A5 (%) ≥26 Impact Toughness No requirement guaranteed (Grade A) 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 -
Q235-A Carbon Steel Plate - Stock Warehouse
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Q235-A Carbon Steel Plate - Product Inspection
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Q235-A Carbon Steel Plate - Product Measurement
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Q235-A Carbon Steel Plate- Product Packaging
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