Is 304 stainless steel good quality？
304ss material: Characteristics, Applications and Advantages of Walmay Steel
304 stainless steel is one of the most commonly used austenitic stainless steel. It has good corrosion resistance, heat resistance, low-temperature strength, and mechanical properties, and is widely used in many industries.
Walmay Steel will show you the chemical composition, physical properties, application range, future trends, etc. of 304 stainless steel. Walmay Steel is your right choice!
Characteristics of sus304 stainless steelss steel
Chemical composition of 304 stainless
304 | C | Mn | P | S | Si | Cr | Ni |
% | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 18.0–20.0 | 8.0-11.0 |
304 | C | Mn | P | S | Si | Cr | Ni | N |
% | ≤0.07 | ≤2.00 | ≤0.045 | ≤0.030 | ≤0.75 | 17.5–19.5 | 8.0–10.5 | ≤0.10 |
SUS 304 | C | Mn | P | S | Si | Cr | Ni |
% | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 18.0–20.0 | 8.0-10.5 |
SUS 304 | C | Mn | P | S | Si | Cr | Ni |
% | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 18.0–20.0 | 8.0-10.5 |
Chromium (Cr): Provides oxidation resistance and corrosion resistance.
Nickel (Ni): Enhances the ductility and toughness of the material and improves corrosion resistance.
Carbon (C): Low content, ensuring welding performance and resistance to intergranular corrosion.
Physical properties of 304 stainless steel
The physical properties of aisi 304 make it suitable for a variety of environments:
| Performance | Density | Melting point | Coefficient of thermal expansion (20-100°C) | Thermal conductivity (20°C) | Specific heat capacity (20°C) | Resistivity (20°C) | Modulus of elasticity |
| Value | 7.93 g/cm³ | 1400-1450 °C | 17.2 µm/m·°C | 16.2 W/m·K | 500 J/kg·K | 0.72 µΩ·m | 193 GPa |
Corrosion resistance: Excellent performance in most environments, especially in oxidizing media.
Heat resistance: Can maintain stability at high temperatures, suitable for high-temperature equipment.
Processing performance: Easy to weld, stamp and form, suitable for complex parts manufacturing.
Basic mechanical properties of 304 stainless steel
| Properties | aisi 304 yield strength (annealed) | Tensile strength（MPa） | Elongation (50mm) | Hardness (HB, annealed) | Elastic modulus | Impact toughness |
| Value | ≥205 MPa | 515-690 | ≥40% | ≤201 | 193 GPa | high |
Factors affecting the mechanical properties of 304 stainless steel
Heat treatment state
Annealed state: lower strength, higher ductility, suitable for forming processing.
Cold processing state: significantly improved strength, but reduced ductility, suitable for high-strength applications.
Temperature
High temperature: the strength of 304 stainless steel is reduced, but it can still maintain good oxidation resistance and heat resistance.
The strength and toughness of low-temperature 304 stainless steel are still high, suitable for use in low-temperature environments.
Application range of walmay steel's 304 stainless steel
stainless steel 304 is the most widely used chromium-nickel stainless steel. As a widely used steel, it has good corrosion resistance, heat resistance, low-temperature strength, and mechanical properties;
It has good hot processing properties such as stamping and bending, and no heat treatment hardening phenomenon (using temperature -196℃～800℃).
Food processing
Application: s steel 304 is suitable for food processing, storage and transportation.
Advantages: non-toxic, easy to clean, corrosion-resistant, and meets food hygiene standards. It has good processing performance and weldability.
Building decoration
Application: curtain walls, side walls, roofs and other building uses.
Advantages: beautiful, durable, easy to maintain, and obtain aesthetic effects in outdoor environments.
Medical equipment
Application: surgical instruments, medical containers, implants.
Advantages: good biocompatibility, resistant to disinfection and detergent corrosion.
Automobile industry
Application: exhaust pipes, decorative parts, fuel system components.
Advantages: high temperature resistance, corrosion resistance, and extended service life.
stain steel 304 product shape: Stainless steel is manufactured in full standard metal shapes and sizes, and there are also many special shapes.
The most commonly used products are made of thin plates and strips, and medium and thick plates are also used to produce special products, such as hot-rolled structural steel and extruded structural steel.
There are also round, oval, square, rectangular, and hexagonal welded pipes or seamless steel pipes and other forms of products, including profiles, bars, wires, and castings.
Application trend of stainless steel ss 304
Environmental protection and sustainable development
With the increasing awareness of environmental protection, 304 stainless steel has become the preferred material for green buildings and sustainable manufacturing due to its recyclability and long life.
Material innovation
Develop new stainless steel with higher strength and corrosion resistance, such as improving performance through alloy composition adjustment or special heat treatment.
Customized demand
With the development of Industry 4.0, customers’ customized demand for stainless steel products has increased. 304 stainless steel has become an ideal material for customized production due to its good processing performance.
Production process of 304 stainless steel
Including raw material smelting, casting, hot rolling, cold rolling, annealing, pickling and other steps, each step must be strictly controlled to ensure product quality. Modern production lines use automation and intelligent technology to improve production efficiency and consistency.
Reasons to choose Walmay Steel
High-quality products: Walmay Steel’s 304 stainless steel products have excellent performance and meet the needs of high-end applications.
Price competitiveness: Provide cost-effective products by optimizing the production process.
Technical support: Professional team provides technical consultation and solutions.
Customized services: Provide personalized products and services according to customer needs.
Summary
304 stainless steel sheet has shown wide application potential in many fields with its unique performance advantages.
Walmay Steel has become a reliable supplier of 304 stainless steel with advanced production technology, strict quality control and high-quality after-sales service.
Is 304 stainless steel of good quality?
Walmay Steel’s stainless steel quality is trustworthy
Tabs:304 stainless steel，aisi 304，304 stainless steel sheet
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