JIANGSU IRUNT STEEL GROUP CO., LTD.
| Supply Ability | 300000mt Per Year |
| Delivery Time | 5-8 work days |
| Packaging Details | Conventional packing |
| Model NO. | Q390D, Q390E, Q420, Q420B, Q420C, Q420DQ420E |
| Wall Thickness | 0.17 mm-3.5 mm |
| Stock | 1.5-16mm |
| Length | 100-2500mm |
| Samples | available |
| Brand Name | IRUNT |
| Model Number | Carbon Steel Coil |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Supply Ability | 300000mt Per Year | Delivery Time | 5-8 work days |
| Packaging Details | Conventional packing | Model NO. | Q390D, Q390E, Q420, Q420B, Q420C, Q420DQ420E |
| Wall Thickness | 0.17 mm-3.5 mm | Stock | 1.5-16mm |
| Length | 100-2500mm | Samples | available |
| Brand Name | IRUNT | Model Number | Carbon Steel Coil |
| Certification | ISO9001 | Place of Origin | CHINA |
| High Light | Carbon Steel Coil 3.5mm ，Q235 Low Carbon Steel Coil ，Hot Rolled Carbon Steel Coil | ||
Hot Rolled 0.17 Mm-3.5 Mm Wall Thickness Black Q235 Low Carbon Steel Coil
| Product Name | carbon steel coil |
| Wall Thickness | 0.17mm-3.5mm |
| Width | 600mm-1250mm |
| Tolerance | Thickness:±0.03mm, Width: ±50mm, Length: ±50mm |
| Material | Q345B,Q345C,Q345D,Q345E,Q390,Q390B,Q390C, Q390D,Q390E,Q420,Q420B,Q420C,Q420DQ420E, Q460,Q460D,Q500C,Q500D,Q500E,Q550C,Q550D, Q550E,Q620C,Q620D,Q620E,Q690A,Q690B,Q690C, Q690D,Q690E,Q690D,Q690C,Q890C,Q890D 16Mo3,16MnL,16MnR ,16Mng,16MnDR,SGCC , SGCH , DX51D+Z,Q195-Q420 Series,SS400-SS540 Series, S235JR-S355JR Series,ST Series,A36-A992 Series, Gr50 Series. A500 |
| Technique | Hot/cold Rolled |
| Surface treatment | Top paint: PVDF, HDP, SMP, PE, PU Prime paint: polyurethane, epoxy, PE Back paint: epoxy, modified polyester |
| Standard | ASTM, JIS, EN |
| Certificate | ISO |
| Payment terms | 30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100% Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days |
| Delivery times | Delivered within 30 days after the receipt of deposit |
| Package | tied up with steel strips and wrapped with water proof paper |
| Loading port | Qingdao/Tianjin, China |
| Application | Widely used in roofing sheet, window-shades, car ceiling, the shell of the car, air conditioner, outer shell of water machine, steel structure etc |
| Advantages | 1. Reasonable price with excellent quality 2. Abundant stock and prompt delivery 3. Rich supply and export experience, sincere service |
Mild steel (Low carbon steel) is a carbon steel with carbon content less than 0.25%. It is also called mild steel because of its low strength, low hardness and softness. It includes most of the ordinary carbon structural steel and part of the high quality carbon structural steel, most of the engineering structural parts without heat treatment, and some of the carburizing and other heat treatment for wear-resistant mechanical parts.
The annealed structure of low carbon steel is ferrite and a little pearlite, with low strength and hardness, good plasticity and toughness. Therefore, its cold formability is good, can be used to roll, bending, stamping and other methods for cold forming. This steel also has good weldability. Low carbon steel with carbon content from 0.10% to 0.30% is easy to accept all kinds of machining such as forging, welding and cutting, and is often used in the manufacture of chains, rivets, bolts, shafts, etc.
The annealed structure of low carbon steel is ferrite and a little pearlite, with low strength and hardness, good plasticity and toughness. Therefore, its cold formability is good and can be used for cold forming methods such as crimping, bending and stamping. This kind of steel has good weldability. Low carbon steel with very low carbon content has very low hardness and poor machinability, and normalizing treatment can improve its machinability.
Low carbon steel has a great aging tendency, both quenching aging tendency and deformation aging tendency. When the steel is cooled from high temperature, the carbon and nitrogen in the ferrite are in a supersaturated state, and it can slowly form the carbon and nitrogen of iron at room temperature, so the strength and hardness of steel are improved, and the plasticity and toughness are reduced, this phenomenon is called quenching aging. Low carbon steel will produce aging even if it is not hardened and air cooled. The carbon and nitrogen atoms in ferrite interact elastically with the dislocation, and the carbon and nitrogen atoms gather around the dislocation line. This combination of carbon and nitrogen atoms and dislocation lines is called a Corleone air mass. It will increase the strength and hardness of steel and decrease the plasticity and toughness, this phenomenon is called deformation aging. Deformation aging is more harmful to the ductility and toughness of low carbon steel than quenching aging, and there are obvious upper and lower yield points on the tensile curve of low carbon steel. From the appearance of the upper yield point to the end of yield extension, a surface corrugation band, called Luders zone, is formed on the surface of the sample due to uneven deformation. Many stamping parts are often scrapped as a result. There are two ways to prevent it. A high pre-deformation method, pre-deformation of steel placed for a period of time after stamping will also produce luders zone, so the pre-deformation of steel before stamping place time should not be too long. The other is to add aluminum or titanium to the steel to form a stable compound with nitrogen that prevents the formation of deformation aging caused by the Collarian gas mass.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Importer,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
10000-5000000
Employee Number:
500~1000
Ecer Certification：
Active Member
Jiangsu Irunt Steel Group Co., Ltd. is located in Wuxi City , Jiangsu Province, China, which is the largest steel production base. After 30 years of efforts, it has grown from a family factory to a group company. The group company mainly produces and sells a series of steel products suc... Jiangsu Irunt Steel Group Co., Ltd. is located in Wuxi City , Jiangsu Province, China, which is the largest steel production base. After 30 years of efforts, it has grown from a family factory to a group company. The group company mainly produces and sells a series of steel products suc...
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