Steel Coil & Strip & Hot Rolled Coil,GB/T 3274-2017、ASTM A36、JIS G3101、EN 10025
I. Product Definition
Hot Rolled Coil (HRC for short) is a coiled steel product made from steel billets rolled by hot rolling mills at high temperature (usually 1100-1250℃). During the production process, the steel billet's plasticity is improved after high-temperature heating, enabling continuous rolling with high production efficiency and complete product specifications. It is a basic steel product with large output and wide application in the steel industry, widely used in various industrial manufacturing, construction engineering and other fields around the world, and is one of the core steel categories for foreign trade export.
II. Core Product Features
(1) High Production Efficiency and Outstanding Cost-Effectiveness
Adopting high-temperature continuous rolling process, the production process is convenient with large production capacity. Compared with cold rolled coils, it has lower production cost and significant cost-effectiveness advantage. It is suitable for bulk purchase and large-scale application, and is the preferred steel for overseas customers to control procurement costs.
(2) Stable Mechanical Properties and Excellent Toughness
During the high-temperature rolling process, the internal grains of the steel are uniformly refined, with good tensile strength, yield strength and toughness. It can withstand various processing methods such as bending, cutting and welding, is not easy to break, adapts to various heavy-duty processing scenarios, and meets the core needs of overseas industrial manufacturing.
(3) Diverse Specifications and Wide Adaptability
According to the needs of overseas customers, products with different thicknesses, widths, materials and surface states can be customized, covering thin specifications, conventional specifications and thick specifications. The width and thickness can be flexibly adjusted to adapt to the differentiated application needs of different countries and industries.
(4) Customizable Surface to Adapt to Multiple Scenarios
The surface of the basic hot rolled coil is covered with scale (black surface), which can be directly used in scenarios with low surface requirements; it can also be subjected to subsequent treatments such as pickling and annealing to remove the oxide layer and improve surface finish, meeting the needs of export orders with certain surface requirements.
(5) Easy to Process, Adapting to Overseas Processing Needs
The steel has good plasticity, is easy to cut and weld, and can be processed subsequently without complex pretreatment. According to the processing requirements of overseas customers, customized pretreatment services such as leveling and slitting can be provided to reduce the subsequent processing costs of customers.
III. Main Specification Parameters
Parameter Category |
Specific Description |
|---|---|
Thickness Range |
1.2mm - 20.0mm (special thickness can be customized; conventional commonly used 2.0mm - 12.0mm) |
Width Range |
1000mm, 1250mm, 1500mm (conventional widths); special widths of 800mm - 1800mm can be customized to adapt to the processing needs of different overseas equipment |
Inner Diameter |
Conventional 508mm, 610mm; can be adjusted according to customer requirements and transportation standards, adapting to commonly used overseas warehousing and processing equipment |
Coil Weight |
Single coil weight 3-30 tons; can be customized according to customer order quantity and transportation method (sea transportation, land transportation), facilitating overseas transportation and warehousing |
Material |
Carbon steel (Q195, Q215, Q235, SS400, A36), low alloy steel (Q355, A572), low carbon steel, etc., which can meet the material standards of different countries |
Surface State |
Black Surface, Pickled Surface, Annealed Surface; can be customized on demand |
Executive Standard |
GB/T 3274-2017, ASTM A36, JIS G3101, EN 10025, etc., which can adapt to the industry standards of different overseas countries |
IV. Material Model and Chemical Composition Table
The following is the chemical composition (mass fraction) of common material models for foreign trade export, which meets international general standards. Special materials and component ratios can be customized according to the standards specified by overseas customers, and third-party testing is supported.
Material Model |
C (Carbon) |
Si (Silicon) |
Mn (Manganese) |
P (Phosphorus) ≤ |
S (Sulfur) ≤ |
Applicable Standard |
|---|---|---|---|---|---|---|
Q235 (A36) |
0.17~0.22 |
≤0.35 |
0.35~0.65 |
0.045 |
0.050 |
GB/T 3274-2017, ASTM A36 |
Q355 (A572) |
0.18~0.24 |
≤0.55 |
1.20~1.60 |
0.045 |
0.045 |
GB/T 3274-2017, ASTM A572 |
SS400 |
≤0.20 |
≤0.35 |
0.60~1.00 |
0.045 |
0.045 |
JIS G3101 |
SPHC (Hot Rolled Low Carbon Steel) |
≤0.12 |
≤0.05 |
≤0.50 |
0.035 |
0.035 |
JIS G3131 |
V. Applicable Application Scenarios
As a basic steel product, hot rolled coils are exported to many countries and regions around the world, widely used in construction, automobile, machinery manufacturing, steel structure, pipeline and other fields. The specific applicable scenarios are as follows:
Construction Engineering: Used for steel structure workshops, bridges, scaffolding, tower cranes, building embedded parts, etc. It has high strength and strong bearing capacity, adapting to large-scale overseas construction projects.
Automobile Industry: Used for manufacturing auto chassis, frames, wheels and other parts. It has excellent toughness, can withstand complex processing, and adapts to the needs of overseas automobile manufacturers.
Mechanical Manufacturing: Used for the body, base and parts of machine tools, engineering machinery, agricultural machinery and other equipment. It is easy to process and has stable mechanical properties, reducing the processing costs of overseas manufacturers.
Pipeline Manufacturing: Used for fluid transmission pipelines, gas pipelines, etc. It can be formed by welding, adapting to the needs of overseas municipal engineering and chemical industry.
Hardware Processing: Used for making hardware accessories, steel structural parts, stamping parts, etc. It can be leveled and slit according to customer needs, adapting to the bulk purchase of overseas hardware processing enterprises.
Other Fields: Used for container manufacturing, shipbuilding, home appliance shells, etc. Special specifications can be customized to meet the differentiated needs of different overseas industries.
VI. Quality Assurance
1. Production Standard: Strictly produced in accordance with international general standards (GB, ASTM, JIS, EN, etc.), and can be customized according to the standards specified by overseas customers to ensure that the products meet the quality requirements of the importing country.
2. Testing Process: Each batch of exported products has undergone strict testing, including dimensional accuracy testing, surface quality testing, mechanical performance testing, chemical composition testing, etc. A complete Certificate of Quality is provided, and re-inspection by third-party testing institutions is supported.
3. Quality Commitment: Unqualified products are strictly prohibited from export. If customers suffer losses due to product quality problems, return and exchange can be handled in accordance with the contract to protect the rights and interests of overseas customers.
VII. Export-related Instructions
(1) Packaging Standard
Export-specific packaging is adopted: the outer layer is wrapped with waterproof plastic film + moisture-proof paper, the inner layer is padded with protective pads, the two ends of the steel coil are added with protective plates, and fixed with steel strips to prevent scratches, rust and deformation during transportation. It is suitable for various transportation methods such as sea transportation, land transportation and air transportation, and meets international transportation packaging standards. Packaging marks (such as English shipping marks, specifications and parameters, destination, etc.) can be customized according to customer requirements.
(2) Delivery Cycle
For conventional specification hot rolled coils, the delivery cycle is 5-7 days (calculated from the confirmation of the order, receipt of payment and confirmation of letter of credit); for special customized specifications (special materials, special sizes, special surface treatments), the delivery cycle will be adjusted according to the production difficulty. The specific time will be communicated and confirmed with the customer in advance to ensure on-time delivery without affecting the customer's customs clearance and production plan.
(3) Customs Clearance Documents
Complete export customs clearance documents can be provided, including Commercial Invoice, Packing List, Bill of Lading, Certificate of Quality, Certificate of Origin, etc., to assist customers in smoothly completing import customs clearance.
(4) Transportation Method
Sea transportation is supported (the main method, suitable for large-volume orders, direct or transshipment routes can be arranged), land transportation (for orders from neighboring countries), and air transportation (for small-volume and urgent orders). We can assist customers in contacting freight forwarders, select the optimal transportation plan, control transportation costs, and ensure the safe delivery of goods.
VIII. Product Advantages for Export
1. Price Advantage: Direct supply from the manufacturer, no intermediate links, preferential prices for bulk purchase, helping overseas customers improve market competitiveness.
2. Customization Advantage: Can be customized according to the material, specification, packaging and standard requirements of overseas customers, adapting to the market needs of different countries.
3. Service Advantage: Professional foreign trade team docking, providing one-on-one full-process service, promptly responding to customer inquiries, order follow-up, customs clearance assistance and other needs, solving the worries of customers in export.
4. Production Capacity Advantage: Own production base with sufficient production capacity, able to undertake large-volume export orders, ensure on-time delivery, and guarantee the long-term supply needs of customers.
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