904L Stainless Steel Sheet

904L Stainless Steel Sheet is a high-performance alloy renowned for its exceptional corrosion resistance and durability. This versatile material has become increasingly popular in industries where exposure to harsh environments is common, such as chemical processing, oil and gas, and marine applications. Its unique composition, featuring high levels of chromium, molybdenum, and nickel, allows it to withstand aggressive chemicals and saltwater corrosion better than many other stainless steel grades.

Alloy 904l Stainless Steel Data Sheet

Thicknesses for Alloy 904L

3/16"	1/4"	3/8"	1/2"	5/8"	3/4"
4.8mm	6.3mm	9.5mm	12.7mm	15.9mm	19mm
1"	1 1/4"	1 1/2"	1 3/4"	2"
25.4mm	31.8mm	38.1mm	44.5mm	50.8mm

Physical Properties of Alloy 904L

Density
0.287 lbs/in3
7.95 g/cm3

Specific Heat
0.11 BTU/lb-°F (32 – 212°F)
450 J/kg-°K (0 – 100°C)

Modulus of Elasticity
28.0 x 106 psi
190 GPa

Thermal Conductivity 212°F (100°C)
6.8 BTU/Ft-hr°F
12.9 W/m-°K

Melting Range
2372 – 2534°F
1300 – 1390°C

Electrical Resistivity
33.5 Microhm-in at 68°C
95.2 Microhm-cm at 20°C

5 Key Advantages of 904L Stainless Steel Sheet

Superior Corrosion Resistance

904L exhibits exceptional resistance to various corrosive environments, including acids, chlorides, and seawater, making it ideal for harsh industrial applications.

High Temperature Performance

It maintains its structural integrity and corrosion resistance at elevated temperatures, suitable for use in high-heat processes.

Excellent Weldability

904L can be easily welded using standard welding techniques without losing its corrosion-resistant properties, facilitating fabrication and repairs.

Low Maintenance Requirements

Due to its durability and resistance to corrosion, 904L sheets require minimal maintenance, reducing long-term operational costs.

Versatility

Its combination of strength and corrosion resistance makes it suitable for a wide range of applications across multiple industries, from chemical processing to marine environments.

Application of 904L Stainless Steel Sheet

Piping Systems

Used in industries where corrosion resistance is crucial, such as chemical processing or offshore oil and gas.

Air Pollution Control

Used in scrubbers for coal-fired power plants to withstand corrosive flue gases and acidic environments.

Chemical Processing

Employed in equipment for producing various acids and fertilizers, resisting chemical attack and maintaining purity.

Metallurgical Processing

Utilized in pickling equipment using sulfuric acid, offering superior resistance to acid corrosion.

Oil and Gas Production

Applied in offshore process equipment to combat the corrosive effects of seawater and harsh chemicals.

Pharmaceutical Industry

Used in process equipment where high purity and corrosion resistance are crucial for maintaining product integrity.

Pulp and Paper

Incorporated in processing equipment to withstand the corrosive chemicals used in pulp production and paper bleaching.

Seawater and Brackish Water Applications

Employed in condensers, heat exchangers, and piping systems exposed to corrosive seawater or brackish water environments.

Chemical Processing Plants

Used for tanks, vessels, and other equipment handling corrosive chemicals.

904L Stainless Steel Sheet Fabrication Data

The following information is derived from the 904l stainless steel data sheet, providing key insights into the fabrication properties of this alloy.
Alloy 904L demonstrates excellent weldability and can be processed using standard shop fabrication practices.

Cold Forming

904L exhibits high ductility, allowing for easy forming. However, due to its molybdenum and nitrogen content, more powerful processing equipment may be required compared to standard 304/304L grades.

Hot Forming

For hot working processes, the recommended temperature range is 1562 – 2102°F (850 –1150°C). While hot working typically requires subsequent solution annealing and quenching, 904L offers a unique advantage. If hot forming is halted at a temperature above 2012°F (1100°C) and the material is immediately quenched, no further heat treatment is necessary. It's crucial to ensure the entire workpiece is quenched from temperatures exceeding 2012°F (1100°C). In cases of partial heating, cooling below 2012°F (1100°C), or if cooling occurs too slowly, hot working must be followed by solution annealing and quenching. The recommended solution annealing temperature for 904L is 1940 – 2084°F (1060 –1140°C).

Machining

Due to its cold work hardening rate, Alloy 904L is less machinable compared to 410 and 304 stainless steels.

Welding

Alloy 904L is amenable to most standard welding processes. As an austenitic plate material, it possesses a homogeneous austenitic structure with evenly distributed alloying elements. Post-welding solidification can lead to the redistribution of elements such as molybdenum, chromium, and nickel. These segregations, present in the weld's cast structure, may potentially impact corrosion resistance in certain environments. However, 904L exhibits less pronounced segregation compared to other materials. It can be welded using filler metal of the same composition or even without filler metal.
The recommended welding consumables for 904L are 20 25 CuL covered electrode and 20 25 CuL wire.

Choose 904L Stainless Steel Sheet in Jiagu 

As the demand for stainless steel 904l sheets grows globally, many manufacturers and factories are turning to China suppliers to meet their needs. Jiagu have gained a reputation for producing high-quality 904L stainless steel sheet at competitive prices, making them an attractive option for companies looking to optimize their wholesale supply chain.