Factory Direct Sales of Q235/Q345 Carbon Steel Plates in China - Reliable Suppliers for 6mm-12mm Thickness
Our versatile carbon steel sheets meet the diverse needs of industrial and infrastructure projects, encompassing a range of grades to satisfy specific load-bearing, weldability, and corrosion resistance requirements—including low-carbon steel (Q235B, A36, 1018), medium-carbon steel (Q355B, 1045, A572 Grade 50), and high-strength low-alloy steel (HSLA). Low-carbon steel grades offer excellent weldability, formability, and cost-effectiveness, making them ideal for general structural applications such as building frames and machinery bases; medium-carbon steel grades balance tensile strength (up to 600 MPa) and machinability, suitable for load-bearing components such as gears and hydraulic parts; high-strength low-alloy steel grades (e.g., Q355B) incorporate microalloying elements such as manganese and silicon, increasing yield strength without sacrificing ductility, making them ideal for heavy engineering projects.
We offer fully customizable specifications to meet project drawing requirements: thicknesses ranging from 2 mm (precision cold-rolled sheet) to 200 mm (heavy-duty hot-rolled steel sheet), with standard sizes up to 3000 × 12000 mm. Custom cutting, chamfering, and drilling services are available to improve on-site assembly efficiency. All steel sheets undergo rigorous manufacturing processes—structural grade sheets are hot-rolled (refining grain structure through controlled cooling), while precision sheets are cold-rolled (ensuring thickness tolerances of ±0.02 mm). Optional surface treatments such as shot peening, primer, or galvanizing are available to enhance rust resistance in outdoor or humid environments.
Beyond their core advantages (cost-effectiveness, high tensile strength and toughness, and versatility in processing), all products comply with GB/T 700, ASTM A36, ASME SA516, and EN 10025 standards. Each batch undergoes ultrasonic testing, tensile testing, and hardness (HB/HRB) testing to ensure structural integrity. We provide volume supply, just-in-time delivery, and technical consulting services to support global infrastructure, heavy industry, and manufacturing customers.
Carbon steel plate is a popular choice for various industrial applications due to its strength, durability, and cost-effectiveness. It is made by rolling a block of carbon steel into sheets of different thicknesses, resulting in a material that can withstand heavy loads and extreme temperatures. The carbon content in these plates ranges from 0.05% to 0.3%, making them ideal for welding, bending, cutting, and other fabrication processes. They are available in multiple grades and sizes, allowing you to select the right one for your specific requirements. Whether you need it for construction, automotive, shipbuilding, or any other industry, carbon steel plate is a reliable option that offers excellent value for money.
Product Name |
Carbon Steel Plate |
Material |
Q235B / Q355B/C/D/E / Q245R / Q345R / NM360 / NM400 / NM450 / NM500 / 65MN / MN13 / Q235NHB / Q355NHB / Q355GNHB / Q355GNHD / Q295NHB, A32, D32, E32, F32; A36, D36, E36, F36; A40, D40, E40, F40, AH32, DH32, EH32; AH36, DH36, EH36; AH40, DH40, EH40, 2HGr50 |
Thickness |
1mm ~ 300mm |
Width |
20mm ~ 3000mm |
Length |
Customer required (1–12m) |
Zinc Coating |
30g – 275g/m² |
Tolerance |
Thickness: ±0.1mm | Width: ±5mm | Length: ±5mm |
Surface |
Black / White |
Technique |
Hot Rolled |
MOQ |
1 Ton |
Payment Terms |
T/T, L/C, Western Union, etc. |
Price Term |
Ex-works, FOB, FCA, CIF, CFR, DDU, etc. |
Package |
Export standard package, suitable for all kinds of transport, or as required |
Delivery Time |
Within 15 days after deposit payment |
Application |
Steel structure, bridge, formwork, ship |
Advantages |
1 Reasonable price with excellent quality |
