微信图片 20230731083158

XM7 stainless steel is a stainless steel material under the Japanese Industrial Standard (JIS), also known as SUSXM7. Stainless steel is an alloy material with good corrosion resistance and high temperature strength. XM7 stainless steel belongs to austenitic stainless steel, which contains relatively high chromium (Cr) and nickel (Ni) components, as well as a moderate amount of copper (Cu) and molybdenum (Mo). This material has excellent corrosion resistance, plasticity and weldability, and is often used in the manufacture of chemical equipment, food processing equipment, medical equipment and other applications requiring high corrosion resistance.

Chemical Composition of XM7 Stainless Steel

XM7 stainless steel is a common stainless steel material that has the following chemical composition:

Carbon (C): ≦0.08%

Silicon (Si): ≦1.00%

Manganese (Mn):≦2.00%

Phosphorus (P):≦0.045%

Sulfur (S): ≦0.030%

Chromium (Cr): 17.00-19.00%

Nickel (Ni): 8.00-10.50%

XM7 stainless steel is an austenitic stainless steel with good corrosion resistance and mechanical properties. It is often used in the manufacture of food processing equipment, chemical containers, medical equipment and other occasions requiring high corrosion resistance.

Mechanical Properties of XM7 Stainless Steel

XM7 stainless steel has good mechanical properties, the following are the general mechanical properties parameters:

Tensile Strength: 540-690MPa

Yield Strength: -245-345MPa

Elongation: 30%-45%

Hardness: 85-95 HRB

These values are general ranges and actual values may vary depending on factors such as specific heat treatment conditions, processing methods, and material dimensions.

Physical Properties of XM7 Stainless Steel

XM7 is a stainless steel grade also known as SUSXM7. The following are the general physical properties of XM7 stainless steel:

Density: 7.9 g/cm3

Melting point: 1398-1420 degrees Celsius

Strength: XM7 stainless steel has medium strength

Toughness: XM7 stainless steel has good toughness and has the ability to resist shock and vibration.

Corrosion resistance: XM7 stainless steel has good corrosion resistance and can resist most common chemical substances, including water, gas and many acid and alkali solutions.

Corrosion resistance of XM7 stainless steel

XM7 stainless steel is a low carbon content austenitic stainless steel, also known as 304 stainless steel. It has good corrosion resistance, especially in general atmospheric environment and many chemical media. XM7 stainless steel has excellent corrosion resistance and can resist the corrosion of a variety of chemicals, including acids, alkalis and salts. It has good corrosion resistance to most organic and inorganic acids and dissolved chlorides at room temperature. It has the following characteristics: high oxidation resistance, general atmospheric corrosion resistance, acid resistance, corrosion resistance, etc.

Heat resistance of XM7 stainless steel

XM7 stainless steel (304 stainless steel) has certain heat resistance, but its performance will be limited in high temperature environment. The following are some characteristics about the heat resistance of XM7 stainless steel:

Short-term high temperature resistance: XM7 stainless steel can withstand high temperature in a short time, generally up to about 800°C.

Oxidation and shrinkage resistance: At high temperature, the chromium element in XM7 stainless steel will react with oxygen in the air to form a dense chromium oxide layer (passivation layer), which provides a certain oxidation resistance. In addition, the stainless steel material also has a certain resistance to crystal shrinkage, that is, it can reduce grain boundary corrosion and grain growth at high temperatures.

Annealing treatment: Through proper annealing treatment, the heat resistance of XM7 stainless steel can be improved. Annealing can eliminate the stress inside the material and improve the toughness and heat resistance of the material.

Welding performance of XM7 stainless steel

XM7 stainless steel has good weldability and can be joined by common welding methods such as arc welding, TIG welding and MIG welding. However, care needs to be taken to control the welding heat input during the welding process to avoid the generation of weld deterioration zones.

Is XM7 stainless steel magnetic?

XM7 stainless steel (AISI 304L) is an austenitic stainless steel with some magnetic properties. In general, austenitic stainless steels have low to moderate magnetic permeability, i.e. they are attracted to an external magnetic field. However, under certain conditions, such as cold deformation or heat treatment to change its crystal structure, XM7 stainless steel can have very low magnetic properties.

It should be noted that the magnetic properties of stainless steel do not affect its corrosion resistance or other physical properties. Therefore, when choosing a stainless steel material, whether it is magnetic or not usually depends on the needs of the specific application. If there are special requirements for magnetism, materials such as stainless steel with lower magnetism can be selected, such as austenitic stainless steel 316L or high-temperature sodium molybdate.

How to Care for XM7 Stainless Steel

To maintain the appearance and performance of XM7 stainless steel, the following maintenance measures can be taken:

Cleaning: Clean the stainless steel surface regularly to remove dirt, grease, fingerprints, etc. Mild soapy water or a specialized stainless steel cleaner can be used. Avoid chlorine-based cleaners as they may damage stainless steel.

Avoid scratches: Try to avoid using hard or abrasive cleaning tools to avoid scratching the stainless steel surface. Choose a soft cloth, sponge, or non-metallic brush for cleaning.

Beautiful Texture Restoration: If the surface of XM7 stainless steel is scratched or slightly damaged, you can use stainless steel polish or lacquer wax to repair it and bring it back to luster.

Protect from Chemical Exposure: Avoid exposing stainless steel to strong acids, salts, or other chemicals to prevent corrosion. In case of accidental spill, rinse immediately with clean water and wipe dry.

Periodic inspection: Regularly inspect the stainless steel surface for corrosion or damage. If a problem is found, take timely measures to repair it to prevent further damage.

Avoid High Temperatures: While XM7 stainless steel has good heat resistance at high temperatures, prolonged exposure to extremely high temperatures may cause surface discoloration. Avoid placing hot pans, grill pans, etc. directly on stainless steel surfaces, use a potholder or stand for protection.

In summary, regular cleaning, gentle handling, and avoidance of scratches and chemical exposure are the keys to maintaining the appearance and performance of XM7 stainless steel. Following these care guidelines will help it last longer and look great.

Application of XM7 stainless steel

XM7 stainless steel (also known as 304 stainless steel) has a wide range of applications in industry and daily life. The following are some typical XM7 stainless steel application areas:

Construction and decoration: XM7 stainless steel has good appearance and corrosion resistance, and is often used in the field of construction and decoration. It can be used to make doors and windows, stair handrails, railings, floor drainage gratings, facade panels, etc.

Food processing and kitchen equipment: Due to its good corrosion resistance and hygienic properties, XM7 stainless steel is often used in food processing equipment, kitchen utensils, utensils and sinks, etc. It is harmless to food safety and easy to clean and maintain.

Medical equipment: XM7 stainless steel is widely used in the medical industry, such as surgical instruments, medical instruments, dental equipment, operating tables, etc. It has antimicrobial properties, corrosion resistance and is easy to disinfect and clean.

Automobile and aviation industry: XM7 stainless steel is used in the automobile and aviation industry to manufacture parts, exhaust systems, oil storage tanks and aero engine parts, etc. It has good heat resistance, corrosion resistance and strength.

Chemical and petroleum industry: Due to its corrosion resistance, XM7 stainless steel is widely used in chemical equipment, petroleum processing facilities, storage tanks and piping systems. It can resist the erosion of corrosive media such as acid and alkali.

Accessories and electronic equipment: XM7 stainless steel is widely used in the manufacture of accessories, hardware tools and various electronic equipment, such as screws, nuts, springs, connectors, etc.

In general, XM7 stainless steel has important application value in many fields due to its excellent corrosion resistance, plasticity and mechanical properties.