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SUS301 is a chromium-nickel stainless steel material, in which “SUS” is the representation method of stainless steel in the Japanese JIS standard, and 301 represents its specific grade. SUS301 has good corrosion resistance and mechanical properties, and can be used in the manufacture of springs, electronic parts, auto parts, etc. The chemical composition of the material mainly includes: chromium (Cr) 13-17%, nickel (Ni) 6-8%.

The main characteristics of SUS301 stainless steel

SUS301 stainless steel is a high hardness stainless steel with the following main characteristics:

High strength: SUS301 stainless steel has good tensile strength and yield strength, and can be used to manufacture high-strength components and structures.

Good corrosion resistance: SUS301 stainless steel has good corrosion resistance at room temperature, and can resist the erosion of general air, water and most organic and inorganic chemicals.

Good processing performance: SUS301 stainless steel is easy to cut, cold work and weld, and is suitable for manufacturing complex shapes and precision parts.

High hardness: SUS301 stainless steel has high hardness and is suitable for the manufacture of parts that require excellent wear resistance and impact resistance.

Good elasticity: SUS301 stainless steel has good elasticity and elastic recovery properties, and is suitable for making springs and spring parts.

Excellent performance at low temperature: SUS301 stainless steel still has good strength and corrosion resistance in low temperature environment, and is suitable for the manufacture of low temperature equipment and devices.

In general, SUS301 stainless steel has high strength, good corrosion resistance, good processability and excellent low temperature performance, and is suitable for applications in various industrial fields.

Chemical composition of SUS301 stainless steel

material

301

chemical composition

C

Mn

Si

P

S

Kr

Ni

N

≦0.15

≦2.0

≦1.0

≦0.045

≦0.030

16-18

6.0-8.0

≦0.10

Mechanical properties of SUS301 stainless steel

material

SUS301

mechanical properties

Zugfestigkeit

Ertragsstärke

Elongation (% in 50mm)

Bend Test (thickness >

758

276

60

–

Physical properties of SUS301 stainless steel

material

SUS301

Physical properties

Dichte (kg/m3)

Elastizitätsmodul (GPa)

Mean Coefficient of Thermal Expansion (μm/m/°C)

Wärmeleitfähigkeit (W/mK)

Specific Heat 0-100°C
(J/kg.K)

Electrical Resistivity (nΩ.m)

0-100°C

0-315°C

0-538°C

at 100°C

at 500°C

7880

193

16.9

17.2

18.2

16.2

21.4

500

695

Heat resistance of SUS301 stainless steel

SUS301 stainless steel has a certain heat resistance, depending on the conditions of use and temperature range.

 

In general, SUS301 stainless steel can perform well at room temperature and has good oxidation resistance. In a higher temperature environment, such as above 600°C, SUS301 stainless steel begins to harden, its hardness and strength will increase, but its toughness and plasticity will decrease. Above 800°C, its tensile strength and creep resistance decrease significantly.

 

In addition, SUS301 stainless steel also has certain heat resistance to the corrosion of some chemical substances. In some common acid, alkali and salt solutions, its corrosion resistance is relatively good.

 

All in all, the heat resistance of SUS301 stainless steel is average, and it is suitable for some low and medium temperature environments, but in high temperature environments, it is necessary to pay attention to the changes in its mechanical properties and corrosion resistance. In a specific application, it needs to be selected according to the actual use conditions.

Heat Treatment of SUS301 Stainless Steel

SUS301 stainless steel can obtain different structures and properties under different heat treatment conditions. Common heat treatment methods include solution annealing, cold working, austenitizing and tempering.

 

Solution annealing: The common solution annealing temperature is 1000°C to 1100°C. Through solid solution annealing, the carbides in stainless steel can be dissolved to form a uniform austenite structure, improve plasticity and toughness, and reduce hardness.

 

Cold working: The strength and hardness of stainless steel can be increased by cold working. Cold working can include cold rolling, cold drawing, cold drawing and other methods, through deformation to refine the grains and improve the strength of the material.

 

Austenitizing treatment: the austenite phase in stainless steel is increased by rapid cooling or heating treatment. Austenitizing can increase the hardness and strength of stainless steel, but it will reduce the toughness.

 

Tempering: by heating stainless steel to a lower temperature (usually between 200°C and 400°C) and holding it for a period of time before cooling. Tempering can reduce the stress after cold working and improve the toughness and corrosion resistance of stainless steel.

 

It should be noted that when choosing a heat treatment method, the specific composition and application requirements of stainless steel need to be considered. Different composition and application requirements may change the heat treatment conditions. Therefore, it is best to conduct experiments or refer to relevant standards to determine the best heat treatment method before heat treatment.

Cold working of SUS301 stainless steel

SUS301 stainless steel is a stainless steel material with excellent tensile strength and elasticity, suitable for various cold working processes.

Common SUS301 stainless steel cold working processes include the following:

Deep drawing: SUS301 stainless steel has good plasticity and toughness in deep drawing, and can produce parts of various shapes through metal sheet cutting, punching, bending and other operations.

Bending: SUS301 stainless steel has good bending performance, and it can be bent into the desired shape by cold bending machine, bending mold and other tools, such as curved pipes, angle irons, etc.

Stretching: SUS301 stainless steel has high tensile strength, and it can be stretched into long and thin products such as screw rods and steel wires by stretching process.

Shearing: SUS301 stainless steel can be cut into required shapes and sizes by shearing machine, such as plates, strips, etc.

Welding of SUS301 stainless steel

SUS301 stainless steel (also known as AISI 301 stainless steel) is a high-strength stainless steel with excellent mechanical properties and corrosion resistance. It is commonly used in applications such as making springs and fasteners.

 

Application of SUS301 stainless steel

SUS301 stainless steel is a versatile and versatile material that can be used in various industries. Its unique combination of strength, corrosion resistance and formability make it suitable for a wide range of applications.

 

One of the main applications of SUS301 stainless steel is the automotive industry. It is commonly used to produce automotive trim components such as bumpers, grilles and door handles. The high tensile strength and excellent corrosion resistance of SUS301 make it ideal for withstanding the harsh conditions encountered on the road.

 

Another important application is the manufacture of electronic components. SUS301 stainless steel is commonly used in the production of springs and connectors due to its excellent elasticity and electrical conductivity. These components are critical to ensuring the reliable performance of devices such as smartphones, computers and medical equipment.

 

In addition, SUS301 stainless steel can also be used in the construction industry to make architectural elements such as handrails, railings and decorative panels. Its aesthetics combined with its durability make it an excellent choice for enhancing both indoor and outdoor spaces.

 

In addition, this stainless steel has applications in the food processing industry. It is commonly used in the manufacture of equipment such as conveyor belts, storage tanks and mechanical parts that come into contact with food. The corrosion resistance of SUS301 ensures hygienic handling while maintaining product quality.

 

Overall, the diverse applications of SUS 301 stainless steel prove its versatility in several industries. Its exceptional properties make it a valuable material choice when strength, corrosion resistance and formability requirements are considered.