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Stainless steel 904L plate is a stainless alloy that offers superior levels of corrosion resistance. Its composition includes chromium, nickel, molybdenum, and copper components, forming a reliable stainless material that can withstand extreme temperatures and corrosive environments. These highly durable stainless plates offer industrial applications and various everyday benefits.

Chemical Composition of Stainless Steel 904L Plates

Discover the Chemical Composition of Stainless Steel 904L Plates, essential for various industrial applications.

GradeCMnSiPSCrMoNiCu
SS 904L0.020 max2.00 max1.00 max0.040 max0.030 max19.00 – 23.004.00 – 5.00 max23.00 – 28.001.00 – 2.00

The balanced composition of Stainless Steel 904L Plates achieves specific properties, highlighting its versatility and reliability in demanding applications.

Mechanical Properties of Stainless Steel 904L Plates

The table presents a comprehensive analysis of the key elements identified in the Mechanical Properties of Stainless Steel 904L Plates.

DensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
7.95 g/cm31350 °C (2460 °F)Psi – 71000 , MPa – 490Psi – 32000 , MPa – 22035 %

Stainless Steel 904L Plates exhibit outstanding mechanical properties, guaranteeing suitability for various applications with long-lasting reliability.

Advantages of Stainless Steel 904l Plates

SS 904L plates offer several advantages, making them suitable for various industrial applications. Here are some of the key advantages:

1. Corrosion Resistance:

Stainless Steel 904L Plates is highly resistant to corrosion in a wide range of environments, including those with high concentrations of sulfuric acid, which makes it ideal for use in harsh industrial applications.

2. High Temperature Resistance:

904l SS Plates retain their mechanical properties at elevated temperatures, making them suitable for high temperatures and thermal stress applications.

3. Formability and Weldability:

The alloy is easily formable and weldable, allowing for versatile fabrication and construction options in various industries.

4. Chemical Resistance:

Stainless Steel 904L Plates resists a wide range of chemicals, acids, and solvents, making it suitable for applications in chemical processing plants and other corrosive environments.

5. Low Carbon Content:

The low carbon content in 904L Stainless Steel Plates minimizes carbide precipitation during welding, reducing the risk of intergranular corrosion and improving the overall corrosion resistance of the material.

6. Durability and Longevity:

Due to their corrosion resistance and high strength, stainless steel 904L plates exhibit excellent durability and longevity in service, reducing maintenance costs over time.

7. Ease of Maintenance:

Stainless Steel 904L Plates requires minimal maintenance, contributing to its cost-effectiveness over the long term.

Therefore, Stainless Steel 904L plates are often favoured for their combination of corrosion resistance, strength, and other favourable properties.

Common Uses of Stainless Steel 904L Plates

Stainless Steel 904L plates find applications in various industries due to their unique benefits. Some common uses of Stainless Steel 904L plates include:

1. Chemical and Petrochemical Industries:

904L Stainless Steel plates are widely used in chemical processing plants and petrochemical industries for equipment such as pressure vessels, heat exchangers, tanks, and pipes where resistance to corrosive chemicals and acids is crucial.

2. Oil and Gas Processing:

The high corrosion resistance of 904L SS Plates makes it suitable for use in oil and gas refineries, where it is used for components such as pipes, heat exchangers, and storage tanks.

3. Pharmaceutical Industry:

Stainless Steel 904L Plates is utilized in pharmaceutical manufacturing equipment due to its corrosion resistance and hygienic properties. It is often used in reactors, storage tanks, and other critical components.

4. Pulp and Paper Industry:

The corrosion resistance and durability of Stainless Steel 904L plates make them suitable for use in the aggressive environments found in the pulp and paper industry, including digesters, bleaching equipment, and chemical processing.

5. Desalination Plants:

Stainless Steel 904L Plates is used in desalination plants for its resistance to corrosion in seawater environments. It finds applications in components such as heat exchangers and piping systems.

6. Water Treatment Plants:

Stainless Steel 904L plates are used in water treatment plants where resistance to corrosive substances is crucial. This includes applications such as water purification systems and pipelines.

Thus, these highly durable stainless steel 904l plates offer numerous industrial applications and benefits for everyday practical use to increase the performance and longevity of any project.

FAQ's for Stainless Steel 904L Plates

The density of stainless steel 904L plates is typically around 7.95 grams per cubic centimeter (g/cm3). This value is based on the density of the alloy's constituents, which include iron, chromium, nickel, molybdenum, and copper. The density of stainless steel plates may vary between different suppliers, manufacturers, and processing methods. Keep in mind that density is an intrinsic material property that doesn't change much by changing the shape, size, or manufacturing process. It is worth noting that density is not the only property that defines the quality of the material, other properties like strength, corrosion resistance, ductility, and hardness are also important.

  • UNS N08904
  • SAE J405: 904L / UNS N08904
  • DIN 1.4539
  • EN 1.4539 / X1NiCrMoCu25-20-5
  • ASTM A240 / A959
  • JIS G4304
  • GB/T 4237
  • ISO 15510
  • GOST 9941-81


  • Yield Strength: 220 MPa (min) - 310 MPa (max)
  • Tensile Strength: 480 MPa (min) - 620 MPa (max)
  • Elongation: 35% (min)
  • Hardness: 220-280 Vickers (typical)
  • Impact Toughness: Not specified
  • Density: 7.95 g/cm3


Price is based on the various factors, in general, it starts from INR 700/Kg to INR 950/Kg


  • Iron (Fe): balance
  • Chromium (Cr): 19-23%
  • Nickel (Ni): 23-28%
  • Molybdenum (Mo): 4-5%
  • Copper (Cu): 1-2%
  • Carbon (C): no more than 0.02%
  • Manganese (Mn): no more than 2%
  • Silicon (Si): no more than 1%
  • Phosphorus (P): no more than 0.03%
  • Sulfur (S): no more than 0.01%
  • Nitrogen (N): no more than 0.1%
  • Titanium (Ti) : no more than 0.05%
  • Aluminum (Al) : no more than 0.02%


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