What is the difference between stainless steel grade 30403 and 304

304 is the grade, and the corresponding UNS number is S30400;

30403 is the UNS number, strictly speaking, it should be S30403, and the corresponding grade is 304L.

This is the classification of the American standard for stainless steel materials.

S30403 is 304L, which implements the 24511 standard, and is generally used in pressure vessels and heads. The 24511 standard for 304 is S30408

340 belongs to ferritic stainless steel with magnetism, ** cheap, easy to rust, suitable for use in dry rooms, 304 stainless steel is a common material in stainless steel, the density is, the industry is also called 18 8 stainless steel. High temperature resistance of 800 degrees, with good processing performance and high toughness, it is widely used in industry, furniture decoration industry and food and medical industry.

30403 and 30408 are both common stainless steel materials, but there are certain differences in chemical width composition and properties:1Chemical Composition:

30403 stainless steel belongs to the 304 series, and its chemical composition is mainly 18% Cr and 8% Ni.

30408 stainless steel belongs to the 304L series, and its chemical composition is mainly 18% Cr, 8-12% Ni and or below C. Compared to 304, 30408 has a higher Ni content, but a lower carbon content is raised. 2.

Performance Comparison: Corrosion Resistance: 30408 has slightly better corrosion resistance than 30403 because the lower carbon content reduces the possibility of corrosion.

Acid resistance: The acid resistance of 30408 is better than that of 30403, which is more suitable for use in acidic environments. Mechanical Strength:

30403 has higher mechanical strength, better tensile strength and impact resistance, which is one of the reasons why the 304 series is more widely used. Ductility: 30408 has better ductility and is easier to process and form.

**: Due to the production process, the ** of 30408 is slightly higher than that of 30403. Melting Point:

30408 has a slightly lower melting point and is easy to weld. In summary, the main differences between 30403 and 30408 are: 1) 30408 has a higher Ni content and a lower C content, so it has better corrosion resistance and acid resistance; 2) 30403 has higher mechanical strength, while 30408 has better ductility; 3) The ** of 30408 is a bit higher, but the weldability is better.

When using, you can choose the right material according to the actual requirements. Generally speaking, if higher corrosion resistance is required, 30408 can be selected; If higher strength is required, 30403 can be chosen. For parts with higher requirements for welding, 30408 stainless steel can also be preferred.

I hope the above comparison of 30403 and 30408 stainless steel will be helpful to you.

30403 and 30408 are different grades of 304 stainless steel, and their main difference is their carbon content and composition ratio.

304 stainless steel is a commonly used stainless steel material, and its main components are elements such as chromium, nickel, molybdenum, and iron. The carbon content of 304 stainless steel is generally not exceeded, so it has good corrosion resistance and processing performance. The carbon content of 30403 stainless steel is lower than that of 304 stainless steel, which is generally below, so it has better resistance to wide rubber corrosion and welding.

In addition, 30408 stainless steel is a high-silicon stainless steel, and its silicon content is 1-2% higher than that of ordinary 304 stainless steel, which can improve its high temperature resistance and corrosion resistance. In addition, the carbon content of 30408 stainless steel is also slightly lower than that of 304 stainless steel.

In conclusion, 30403 and 30408 stainless steel are somewhat different in terms of composition ratio and performance compared with ordinary 304 stainless steel, and the specific choice of which material needs to be selected according to the specific application requirements and material properties.

30403 stainless steel and 39408 stainless steel are both stainless steel materials, but they have different chemical compositions and performance characteristics.

1.30403 stainless steel.

30403 stainless steel, also known as 304L stainless steel, is a type 18-8 stainless steel. Its main components are steel, nickel (8-12%), chromium (18-20%), and carbon (below. Compared to 304 stainless steel, 30403 stainless steel contains a lower carbon content, which makes it more corrosion-resistant and more suitable for use in high-temperature environments.

30403 stainless steel material has excellent corrosion resistance, weldability and gloss. It is widely used in chemical, food processing, medical, and aerospace fields.

2.39408 stainless steel.

39408 stainless steel, also known as 904L stainless steel, is a high-alloy stainless steel. Its main components are steel, nickel (23-28%), chromium (19-23%), molybdenum (4-5%), and copper (1-2%). Similarly, 39408 stainless steel material has excellent corrosion resistance, especially in acidic conditions.

In addition to this, 39408 stainless steel has good wear resistance, heat resistance and low magnetic properties. It is widely used in chemical, petroleum, pharmaceutical and seawater environment equipment manufacturing.

In conclusion, 30403 stainless steel and 39408 stainless steel are both excellent stainless steel materials, and they are suitable for different applications. When selecting materials, it is necessary to determine the appropriate materials according to the requirements of the project and the application conditions.

If the gap between the two trillion traces** is not large, it is recommended to choose 30408. The specific reasons are as follows:

Second, 30408 stainless steel has better mechanical properties, and its hardness, tensile strength, and compressive strength are all higher than 30403 stainless steel, so it is more durable and safe.

Third, the cost of 30408 stainless steel is higher, while the cost of 30403 stainless steel is relatively low.

The difference is that the carbon content and intensity values are different.

Summary. Hello, glad to answer for you!

The differences between 304 stainless steel and 316 stainless steel are as follows:

1. The chemical composition is different: 304 does not have molybdenum elements, while 316 has molybdenum elements.

2. Different corrosion resistance: 304 contains only 9% of nickel elements, while 316 contains 12% of nickel elements, so the corrosion resistance of 304 is worse.

3. Different performance: 304 has better corrosion resistance, acid resistance, alkali resistance, etc., while 316 has better chloride corrosion resistance and heat resistance due to the addition of molybdenum elements.

4. The scope of application is different: 304 is widely used to make pots and pans, etc., while 316 is widely used in the food industry, medical industry, watch industry, etc.

5. **Different: Since 316 belongs to food grade and has better corrosion resistance, 316's ** will be more expensive than 304.

304+316+305 stainless steel difference.

Hello, glad to answer for you! The differences between 304 stainless steel and 316 stainless steel are as follows: 1. The chemical composition is different

304 does not have the molybdenum element, whereas 316 has the molybdenum element. 2. Different corrosion resistance: 304 contains only 9% of nickel elements, while 316 contains 12% of nickel elements, so the corrosion resistance of 304 is worse.

3. Different performance: 304 has better corrosion resistance, acid resistance, alkali resistance, etc., while 316 has better chloride corrosion resistance and heat resistance due to the addition of molybdenum elements. 4. The scope of application is different

304 is widely used to make pots and pans, etc., while 316 is widely used in the food industry, medical industry, watch industry, etc. 5. **Different: Since 316 belongs to food grade and has better corrosion resistance, 316's ** will be more expensive than 304.

The differences between 304 and 305 stainless steel are as follows: 1. The nickel metal content of stainless steel 305 and stainless steel 304 is different: stainless steel 305 improves the nickel metal content compared with stainless steel 304, and the aging and deep drawing performance are better than 304, which can be widely used in various purposes.

2. Stainless steel 305 and stainless steel grades are different: 304 stainless steel corresponds to the domestic grade 1Cr18Ni12, GB stainless steel corresponds to the domestic grade 10Cr18Ni9, standard Stainless steel 305 and stainless steel have different application ranges: The application range of stainless steel 305 is:

Chemical containers, mechanical equipment parts, heat-resistant equipment parts, cryogenic container parts, etc. The scope of application of stainless steel 304 is: food, chemical, atomic energy and other industrial equipment, as well as decoration and household goods, cabinets and other fields.

Hope it helps, I wish you all the best, good health, and a good night's sleep! <>

The difference between 303 stainless steel and 304 is manifested in the function, composition and function, 303 stainless steel is an easy-to-cut material, containing more sulfur, carbon and other elements, and is often used in processing parts, while 304 stainless steel is a universal material, containing less sulfur and carbon elements, which can be used in food and medical, household and other industries.

What is the difference between 303 stainless steel and 304

1. The functions are different

nbsp;303 stainless steel and 304 have different functions. 303 stainless steel is a relatively easy to cut material, its surface is smoother, and the finish is higher, while 304 stainless steel is a versatile material, its finish is poor, but the range of applications is wider.

2. The composition is different

nbsp;The composition of 303 stainless steel is different from that of 304. 303 stainless steel contains more sulfur and carbon elements, which is often used in occasions with high finish, while 304 stainless steel has less sulfur and carbon content and high temperature resistance, which is a food-grade stainless steel material.

3. The role is different

303 stainless steel does not work the same as 304. 303 stainless steel has burn resistance and can make metal parts such as bolts, nuts, and screws, while 304 stainless steel can withstand high temperatures of 800 degrees and is often used in food and medical, home decoration and other fields.

Dear users, stainless steel 304 is generally divided into several grades such as 304L, 304H, 304LN, 304N, etc.: 1304L Stainless Steel:

Pay attention to welding performance, low carbon content, use optimized welding technology, avoid overheating of materials during the welding process, and reduce intergranular corrosion. 2.304H Stainless Steel:

High strength at high temperature, but at the same time, the corrosion resistance of stainless steel is reduced, between ordinary 304 and high-grade stainless steel 321, suitable for some accessories of high-temperature stoves, high-temperature equipment, and industrial stoves. 3.304LN Stainless Steel:

Due to the addition of titanium and boron elements, the strength has been improved, and the brittleness during cold working has been reduced, the welding performance has been improved, and the superior corrosion resistance has been widely used in the chemical industry. 4.304N Stainless Steel:

The nitrogen content is increased, the strength and plasticity are greatly improved, the tensile strength and yield strength are high, and the wear resistance and heat resistance are high. Stainless steel 304 is suitable for all kinds of stainless steel products in daily life, such as kitchen utensils, dining utensils, etc., and is also suitable for industrial products, medical equipment and other applications. It is important to note that different grades are suitable for different environments and conditions, and it is important to choose the right stainless steel grade. 