SUS301L stainless steel is a low-carbon chromium-nickel stainless steel material. It has good ductility, bite and corrosion resistance. SUS301L stainless steel is usually used in the manufacture of electronic components, battery conductors, electroplating materials and other applications.
SUS301L stainless steel chemical composition
material | SUS301L | ||||||||
Chemical Composition
| Fe | Cr | Ni | Mn | Si | P | C | S | N |
Balance | 16-18 | 6-8 | 2 | 1 | 0.045 | 0.03 | 0.03 | 0.2 | |
Mechanical properties of SUS301L stainless steel
material | SUS301L | |||||
Mechanical Properties
| Tensile strength | Yield strength (@strain 0.200%) | Elastic modulus | Elongation at break | Hardness, Brinell | Hardness, Rockwell B |
550 MPa | 550 MPa | 193 GPa | 45% | 241 | 100 | |
Heat Treatment of SUS301L Stainless Steel
The heat treatment of SUS301L stainless steel can generally be divided into two methods: annealing and cold work hardening.
Annealing: Annealing is to reduce the cold work hardening effect of the material and restore the toughness and plasticity of the material by heating the material to an appropriate temperature, keeping it warm for a period of time, and then cooling slowly. Proper annealing can make the material easier to cold work and form.
Cold work hardening: Cold work hardening increases the hardness and strength of materials through mechanical deformation (such as stretching, compression, etc.), but at the same time reduces the toughness and plasticity of materials. Materials after cold work hardening usually have high tensile strength and hardness, but are prone to cracks and fractures.
Welding of SUS301L stainless steel
SUS301L stainless steel is a low-carbon chromium-nickel stainless steel, the welding should pay attention to the following points:
Choose the right welding method: Common welding methods include manual arc welding, argon arc welding, and resistance welding. For thinner workpieces, TIG (argon arc welding) or MIG (insert gas welding) welding methods can be selected.
Preparation: Before welding, ensure that the surface of the workpiece is clean and remove dirt and oxides from the surface. Cleaning can be done with brushes, abrasives or chemical cleaners.
Choose suitable welding materials: For the welding of SUS301L stainless steel, generally choose welding rods or welding wires with similar components for welding. When selecting welding consumables, attention should be paid to the compatibility with the base material, the strength and corrosion resistance of the welded joint.
Control welding parameters: Welding parameters include welding current, voltage, welding speed, etc. For SUS301L stainless steel, the appropriate welding current and voltage should be selected to avoid overheating or overcooling of the welding area, affecting the performance of the joint.
Control the welding process: During the welding process, care should be taken to maintain inert gas protection in the welding area to prevent oxidation and sulfidation, thereby avoiding corrosion of the welded joints. At the same time, the welding speed and penetration depth should be controlled to ensure the quality of the weld.
Post-weld treatment: After welding, proper post-weld treatment should be carried out, including annealing and heat treatment, to improve the strength and corrosion resistance of the joint.
Heat resistance of SUS301L stainless steel
SUS301L stainless steel is a low-carbon stainless steel material with good heat resistance. Heat resistance refers to the stability and oxidation resistance of materials in high temperature environments.
SUS301L stainless steel has good stability at high temperature, can maintain the stability of its structure and performance, and is not easy to deform or melt.
In addition, SUS301L stainless steel also has good oxidation resistance, can resist oxidation at high temperature, and maintain surface finish and corrosion resistance.
Corrosion Resistance of SUS301L Stainless Steel
SUS301L stainless steel has good corrosion resistance. It contains high chromium element, which can form a stable chromium oxide film on the surface, blocking the direct contact between oxygen and metal, thus playing the role of anti-corrosion.
In addition, SUS301L stainless steel also contains a low amount of nickel and molybdenum elements, which enhances its corrosion resistance. The nickel element can improve the corrosion resistance of stainless steel and increase its strength and hardness. Molybdenum can improve acid resistance and chloride ion corrosion resistance.
What are the characteristics of SUS301L stainless steel
The main features of SUS301L stainless steel include:
High strength: SUS301L stainless steel has high strength and can achieve high loads on thinner sections.
Good corrosion resistance: SUS301L stainless steel has excellent corrosion resistance and can be used in humid, acidic and alkaline environments for a long time without rusting.
Excellent processing performance: SUS301L stainless steel has good cold working performance, and can be deformed by cold rolling, cold drawing, cold extrusion, etc. to produce the desired shape and size.
Weldability: SUS301L stainless steel has good welding performance and can be welded by conventional welding methods (such as arc welding, argon arc welding, etc.), while the corrosion resistance of welded joints can also be maintained.
High plasticity: SUS301L stainless steel can change its mechanical properties and organizational structure through heat treatment, so as to meet different use requirements.
Good magnetism: SUS301L stainless steel has low magnetic permeability and magnetic saturation induction, so it can be used in some fields with high magnetic requirements.
What is the difference between SUS301L stainless steel and SUS301 stainless steel?
The difference between SUS301L stainless steel and SUS301 stainless steel is the carbon content and titanium content in their chemical composition.
SUS301L stainless steel is a low carbon stainless steel with a carbon content typically below 0.03%, compared to SUS301 stainless steel which typically has a carbon content between 0.15% and 0.25%. Low carbon content makes SUS301L stainless steel have better corrosion resistance and oxidation resistance.
In addition, a small amount of titanium (about 0.1%) is added to SUS301L stainless steel to increase the stability of the steel. This makes SUS301L stainless steel have better oxidation resistance during welding and reduces oxidation loss during welding.
Therefore, in general, SUS301L stainless steel has better corrosion resistance and oxidation resistance than SUS301 stainless steel, and is more stable during welding. These characteristics make SUS301L stainless steel more popular in some specific application fields, such as chemical industry, food processing and medical equipment.
Application of SUS301L stainless steel
SUS301L stainless steel is low carbon, high manganese, high silicon stainless steel. It has good ductility, strength and corrosion resistance, and can be widely used in various decorative materials, kitchen utensils, electronic products, auto parts, building materials and other fields.
Decorative material: Due to its good luster and corrosion resistance, SUS301L stainless steel is often used to make decorative wall panels, ceilings, stair handrails, glass doors and other home decoration materials.
Electronic products: SUS301L stainless steel has good electrical conductivity, and can be used to make shells, connectors, electrodes, etc. of electronic products after special treatment.
Auto parts: SUS301L stainless steel has good corrosion resistance and can be used in automotive engine parts, exhaust systems and other parts.
Building materials: Because SUS301L stainless steel has the characteristics of high strength and good corrosion resistance, it can be used to make building structural materials, doors and windows, guardrails, etc.
In general, SUS301L stainless steel has a wide range of applications and can meet various occasions that require high material strength, ductility and corrosion resistance.
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