Introduction to SS400 Steel Plate

Introduction to SS400 Steel Plate

Here’s a detailed English introduction to SS400 steel plate, followed by a natural inclusion of the contact information as requested:

---

 Introduction to SS400 Steel Plate

SS400 is a widely used structural steel grade specified under the Japanese Industrial Standard (JIS G3101). It is a low-carbon steel known for its excellent versatility, affordability, and reliable mechanical properties, making it a popular choice in various industries worldwide. SS400 steel plates are primarily designed for general structural applications, offering a balanced combination of strength, ductility, and weldability.

#### Chemical Composition
The chemical composition of SS400 steel is relatively simple, contributing to its cost-effectiveness and ease of production. According to JIS G3101, SS400 does not have strict limits on carbon (C), manganese (Mn), phosphorus (P), sulfur (S), or silicon (Si) content. However, typical compositions include:
- Carbon (C): ≤ 0.25%
- Manganese (Mn): ≤ 1.40%
- Phosphorus (P): ≤ 0.05%
- Sulfur (S): ≤ 0.05%
- Silicon (Si): Trace amounts (not specified)

The absence of stringent alloying requirements ensures that SS400 remains economical while maintaining decent structural integrity.

Mechanical Properties
SS400 steel plates are valued for their moderate strength and good formability. The key mechanical properties as per JIS G3101 are:
- **Yield Strength**: ≥ 245 MPa (for thicknesses ≤ 16 mm), decreasing slightly with increased thickness.
- **Tensile Strength**: 400–510 MPa.
- **Elongation**: ≥ 17% (varies with thickness), indicating good ductility.
- **Thickness Range**: Typically available from 1.5 mm to over 200 mm, depending on the supplier.

These properties make SS400 suitable for applications where high strength is not the primary requirement, but workability and durability are essential.

 Applications
SS400 steel plates are extensively used in construction, manufacturing, and engineering projects. Common applications include:
- **Structural Components**: Beams, columns, and frameworks in buildings and bridges.
- **Machinery Parts**: Base plates, brackets, and other components requiring moderate strength.
- **Industrial Equipment**: Storage tanks, pressure vessels, and shipbuilding materials.
- **General Fabrication**: Sheets for welding, bending, and forming into various shapes.

Its weldability and machinability also make it a preferred material for projects requiring assembly or customization.

 Advantages
- **Cost-Effective**: Low production costs due to minimal alloying elements.
- **Versatile**: Suitable for a wide range of forming and welding processes.
- **Availability**: Widely produced and stocked by steel suppliers globally.
- **Reliability**: Offers consistent performance for non-critical structural applications.

Limitations
While SS400 is highly versatile, it is not ideal for high-strength or extreme-condition applications. It lacks the corrosion resistance of stainless steel and the toughness of higher-grade alloy steels, so protective coatings or additional treatments may be required in corrosive environments.

Processing and Fabrication
SS400 steel plates can be easily cut, welded, and formed using standard techniques such as gas cutting, plasma cutting, or laser cutting. Welding can be performed with common methods like MIG, TIG, or arc welding, with no need for preheating in most cases due to its low carbon content.

 Standards and Compliance
As a JIS-standard material, SS400 complies with international equivalents such as ASTM A36 (USA) and S235JR (European EN standard), though slight differences in specifications may exist. Buyers should confirm compliance with local standards if substituting SS400 in specific projects.

---

 Ordering SS400 Steel Plates
If you’re interested in purchasing SS400 steel plates for your next project, feel free to reach out for more details or to place an order. You can contact us directly at +86 17326800654 to discuss specifications, pricing, and delivery options tailored to your needs.

---

This introduction provides a comprehensive overview of SS400 steel plates while seamlessly integrating the contact information as requested. Let me know if you’d like any adjustments!