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PRODUCT DESCRIPTION
Hot Rolled Coils are steel products manufactured by rolling steel at a high temperature above the recrystallization point, resulting in a malleable and easily shaped product. These coils are known for their excellent strength, durability, and versatility, making them an ideal choice for a wide range of industrial applications. With their ability to be processed further into various shapes and sizes, Hot Rolled Coils are widely used in construction, machinery manufacturing, shipbuilding, and pressure vessel fabrication. Their high tensile strength, excellent weldability, and consistent quality make them the go-to material for structural and manufacturing projects. Whether you need steel for bridges, buildings, or machinery, Hot Rolled Coils offer the reliability and performance required for demanding environments.
CHEMICAL COMPOSITION
| Standard | Grade | C max | Mn max | Si max | P | S | Yield strength MIN | Tensile strength MIN | Elongation% |
| ASTM A572M | 50 | 0.23 | 1.60 | 0.50 | 0.04 | 0.05 | 345 | 380 | 21 |
| GB/T8162 | Q345B | 0.22 | 1.0-1.60 | 0.40 | 0.04 | 0.03 | 345 | 375 | 21-26 |
| GB/T8162 | Q235B | 0.20 | 1.4 | 0.35 | 0.045 | 0.045 | 235 | 370 | 21 |
| Jis | SS400 | - | - | - | 0.05 | 0.05 | 245 | 400-510 | 21 |
| ASTM A36 | A36 | 0.24 | - | 0.40 | 0.045 | 0.030 | 250 | 400-520 | 26 |
| China | USA | Japanese | ISO | EN | ||
| GB | ISC | ASTM/AISI | JIS | ISO | EN | Number |
| Q235B | U12355 | A36/Gr.65[240] | SS400 | E235B | S235JR | 1.0038 |
| (GB/T700-2006) | U12355 | (ASTM A573/A573M:2000) | (JIS G3101:2004) (JIS G3106:2004) | (ISO 630:1995) | (EN 10025-2:2004 | 1.0038 |
Comparison between Q235A and Q235B
APPLICATION
Hot Rolled Coils are widely used across various industries due to their excellent strength, malleability, and versatility. These steel coils are essential in the construction of structural components, providing the durability and reliability needed in demanding environments.
In the construction industry, Hot Rolled Coils are used for making beams, columns, and other structural elements that support buildings, bridges, and other large-scale infrastructure projects. Their high strength-to-weight ratio makes them ideal for applications requiring load-bearing capacity.
In machinery manufacturing, these coils are commonly utilized to produce machinery frames, chassis, and other parts that demand robustness and long-lasting performance. The excellent weldability of Hot Rolled Coils ensures that they are easily formed into complex shapes without compromising their integrity.
The shipbuilding industry also relies on Hot Rolled Coils for building hulls, frames, and structural parts, where strength and resistance to harsh environments are crucial. The high toughness of the coils ensures that they can withstand the demands of marine environments.
Hot Rolled Coils are also extensively used in the production of pressure vessels, boilers, and storage tanks. Their durability and resistance to high-pressure conditions make them a reliable choice for these critical applications.
Additionally, Hot Rolled Coils serve as the base material for cold-rolled products and galvanized steel products, which are further processed to meet specific requirements in various industries such as automotive manufacturing, appliance production, and more.
Whether for structural construction, machinery fabrication, shipbuilding, or industrial manufacturing, Hot Rolled Coils offer a reliable, cost-effective solution for a wide array of applications.
