What is SUS304LN Stainless Steel?

SUS304LN is a austenitic chromium-nickel alloy with high nitrogen content. It has a lower carbon content than SUS304 and is used in applications where higher strength is required.

What is the chemical composition of SUS304LN Stainless Steel?

C:≤0.03

Si:≤1.00

Mn:≤2.00

P:≤0.045

S:≤0.030

Cr:17.00~19.00

Ni:8.50~11.50

N:0.12~0.22

What are the mechanical Properties SUS304LN Stainless Steel?

SUS304LN is a stainless steel with a lower carbon content than SUS304. It is an austenitic steel with added nitrogen, which improves its mechanical properties. The following are the mechanical properties of SUS304LN:

Hardness: Rockwell B80 max

Yield strength: 275 MPa min

Tensile strength: 600 MPa min

Elongation: 40% min

Reduction of area: 50% min

Modulus of elasticity (at 20°C): 193 GPa

What are the physical properties of SUS304LN Stainless Steel ?

SUS304LN is a Japanese JIS standard stainless steel grade. It is an austenitic stainless steel with a low carbon content and nitrogen addition. The nitrogen addition increases the strength of the material while maintaining its corrosion resistance. SUS304LN has good welding properties and can be welded using all standard welding methods. It is typically used in food processing and pharmaceutical applications.

What are the characteristics of SUS304LN Stainless Steel?

SUS304LN is a nitrogen-containing austenitic stainless steel. It has a lower carbon content than SUS304 and therefore has improved intergranular corrosion resistance. In addition, it contains about 0.5% nitrogen, which increases its tensile strength and hardness compared to SUS304.

What are the properties of SUS304LN Stainless Steel?

SUS304LN is a austenitic chromium-nickel alloy with nitrogen addition. The addition of nitrogen increases the strength of the alloy and makes it non-magnetic. SUS304LN has good corrosion resistance in both welded and unwelded condition. It is commonly used in food processing, chemical, and architectural applications.

What are the applications of SUS304LN Stainless Steel?

SUS304LN is a stainless steel that is widely used in various industries for its excellent properties. Some of the most common applications of SUS304LN are:

1. Food processing and handling: SUS304LN is often used in food processing and handling equipment due to its high corrosion resistance. It is also non-toxic and safe to use in contact with food.

2. Chemical processing: SUS304LN is resistant to many chemicals, making it ideal for use in chemical processing equipment.

3. Pharmaceuticals: SUS304LN's corrosion resistance and non-toxicity make it ideal for use in pharmaceutical manufacturing and processing equipment.

4. Power generation: SUS304LN's high temperature stability makes it ideal for use in power generation equipment such as boilers and heat exchangers.

Why is SUS304LN Stainless Steel Ideal for Welding?

SUS304LN stainless steel is ideal for welding because it has excellent corrosion resistance, good weldability, and high toughness. It is often used in the food and beverage industry, as well as in other industries where corrosion resistance is a key concern.

What are the best methods for Welding SUS304LN Stainless Steel?

SUS304LN is a low carbon version of SUS304, and is suitable for use in welding applications where intergranular corrosion is a concern. When welding SUS304LN stainless steel, care must be taken to avoid over-welding, as this can lead to localized hot spots and cracking. The best methods for welding SUS304LN stainless steel are the gas tungsten arc welding (GTAW) and shielded metal arc welding (SMAW) processes.

When using the GTAW process, care must be taken to use an appropriate filler metal. In most cases, ER308L or ER309L filler metals should be used. If necessary, pre-heat the base material to 200-300°F (93-149°C) to help reduce the risk of cracking. It is also important to use a watercooled torch when welding SUS304LN stainless steel to help keep the base material cool and prevent distortion.

For the SMAW process, E308 or E309 class electrodes should be used. As with the GTAW process, pre-heating the base material is recommended when using the SMAW process on SUS304LN stainless steel.

How to Weld SUS304LN Stainless Steel?

SUS304LN is a low carbon, nitrogen-containing austenitic stainless steel. It has superior corrosion resistance to 304 and 304L stainless steels, and it can be used in environments where high temperatures are present. SUS304LN is not as widely available as other austenitic stainless steels, but it can be welded using the same processes and welding parameters as other austenitic grades.

What are the tips for Welding SUS304LN Stainless Steel?

SUS304LN is a low carbon, nitrogen-added version of SUS304 stainless steel. It is an austenitic stainless steel with superior corrosion resistance to that of SUS316L stainless steel. The following are tips for welding SUS304LN stainless steel:

1. Use a filler metal that is similar in composition to SUS304LN stainless steel. This will help to avoid weld contamination and ensure the integrity of the weld.

2. Preheat the base metal before beginning the welding process. This will help to prevent cracking and warping during the welding process.

3. Use low-amperage settings when welding thin sections of SUS304LN stainless steel. This will help to prevent burning through the metal.