Strong And Durable Q345 Carbon Steel Coil
Q345 carbon steel coil, also known as low-alloy high-strength structural steel, offers excellent mechanical properties. Its yield strength ranges from 345 to 470 MPa, making it stronger than many other carbon steel grades. Its tensile strength is also impressive, ranging from 470 to 630 MPa. This combination of high strength and ductility allows Q345 carbon steel coil to withstand significant loads without breaking.
In addition to its mechanical properties, Q345 carbon steel coil also exhibits good weldability and formability. It can be easily welded using various welding methods, and it can be shaped into complex geometries without significant loss of mechanical properties.
| Product Name | Hot Rolled Carbon Steel Coils |
| Technique | Hot Rolled |
| Material | Q195, Q215,Q235,Q345,ST37, A36,45# ,16Mn, SPHC,SGCC,CGCC |
| Thickness(mm) | Hot Rolled Thickness:2.75mm-100mmCold Rolled Thickness:0.2mm-3mm |
| As Your Request | |
| Width(mm) | 45mm-2200mm, As Your Request |
| Length | 1-12m,as Your Request |
| Tolerance | ±1% |
| Coil Weight | 3~5 Tons for as per your request |
| Surface | Bare,Black,Oiled,Shot Blasted,Spray Paint,Coated,Galvanized,or as Your Request |
| Carbon Steel Coil | SGCC/CGCC/TDC51DZM/TDC52DTS350GD |
| Certificate | ISO9001,MTC |
| Coil ID | 508-610mm or as per your request |
| Place of Origin | Shanghai, China |
| Price term | CIF CFR FOB EXW |
| Sample | Free |
| Customize Service | Yes |
| Packages | Packing Standard |
| Delivery Time | 14-30 Days |
| Standard | Grade | General Size | Delivery Condition |
| ASTM A36 | A36/A36-B | 5-20 * 2300-2500*C | Boron added or Black Condition |
| ASTM A283 | A283-B/A283C | 5-20 * 2300-2500*C | Boron added or Black Condition |
| ASTM A572 | A572Gr50-B/A572Gr42-B | 5-20 * 2300-2500*C | Boron added or Black Condition |
| ASTM A515 | A515Gr70 | 5-20 * 2300-2500*C | Boron added or Black Condition |
| ASTM A516 | A516Gr70 | 5-20 * 2300-2500*C | Boron added or Black Condition |
| JIS G 3101 | SS400-B | 5-20 * 2300-2500*C | Boron added or Black Condition |
| JIS G3136 | SN400B | 5-20 * 2300-2500*C | Boron added or Black Condition |
| EN10025-2:2004 | S235JRS355K2+N | 5-20 * 2300-2500*C | Boron added or Black Condition |
| EN10025-5:2004 | S355J2W/S355K2W | 5-20 * 2300-2500*C | Boron added or Black Condition |
| Grade | Rank | Chemical Composition( %) | ||||
| C | Mn | Si | S | P | ||
| Q195 | 0.06~0.12 | 0.25~0.50 | ≤0.3 | ≤0.5 | ≤0.45 | |
| Q215 | A | 0.09~0.15 | 0.25~0.55 | ≤0.3 | ≤0.05 | ≤0.45 |
| B | ≤0.45 | |||||
| Q235 | A | 0.14~0.22 | 0.30~0.65 | ≤0.3 | ≤0.5 | ≤0.45 |
| B | 0.12~0.20 | 0.30~0.70 | ≤0.45 | |||
| C | ≤0.18 | 0.35~0.80 | ----- | ≤0.04 | ≤0.04 | |
| D | ≤0.17 | ≤0.035 | ≤0.035 | |||
| Q255 | A | 0.18~0.28 | 0.40~0.70 | ≤0.3 | ≤0.05 | ≤0.045 |
| B | ≤0.045 | ----- | ||||
| Q275 | 0.28~0.38 | 0.50~0.80 | ≤0.35 | ≤0.05 | ≤0.045 |
The hot-rolled steel coil is made of continuous casting slab or pre-rolled slab as raw material, heated by a walking heating furnace, descaled by high-pressure water, and then entered into the rough rolling mill. Computer-controlled rolling, after final rolling, laminar cooling (computer-controlled cooling rate) and coiling by a coiler become straight rolls.
Hot rolled steel undergoes a rolling process that involves forming and rolling steel slabs into long, hot bands while heated at extremely high temperatures (typically over 1,700'F) above steels recrystallization temperatures.
The hot rolled steel is malleable at high temperatures, enabling it to be rolled into various shapes, forms, and sizes. After forming, the steel is cooled at room temperature, typically leaving a scaly surface finish that techniques like pickling can remove.
Hot rolled steel sheet and coil are basic carbon steel products commonly used for applications in which dimensional tolerances and surface finish quality are not critical, such as: Agriculture Equipment/Automobile Accessories/Automotive Frames/Construction/Pipe and Tubular/Railroad Tracks/Strappings/Stampings/Transportation Infrastructure.
| Packing | Waterproof paper, and steel strip packed. Standard Export Seaworthy Package.Suit for all kinds of transport,or as required. |
| Shipping | 1.Shipping by containers |
| 2.Shipping by bulk ship | |
| The packaging method can be customized according to customer requirements | |
