304 Stainless Steel
304 Stainless Steel
304 stainless steel is a common stainless steel alloy whose main components include 18% chromium and 8% nickel, as well as small amounts of carbon, manganese, silicon, and other alloying elements. Due to its excellent corrosion resistance, high-temperature resistance, and easy processability, 304 stainless steel is widely used in many fields, including kitchen utensils, building materials, chemical equipment, and medical equipment.
304 stainless steel has an austenitic crystal structure, which means it has excellent corrosion resistance at room temperature. Its high chromium and nickel content makes it resistant to attack by most chemical media and is therefore considered a material with excellent corrosion resistance. In addition, 304 stainless steel also has good toughness and processability and can meet various manufacturing needs.
Our factory has 304 stainless steel sheets, 304 medium and thick plates, 304 stainless steel pipes, 304 stainless steel strips, 304 stainless steel rods, etc. in stock in various shapes and specifications.
Overall, 304 stainless steel is an important and versatile stainless steel alloy whose excellent corrosion resistance and processability make it widely used in construction, manufacturing, chemical industry, and other fields.
304 Stainless Steel Data Sheet
Product Specifications
Comparison Table
Production Standards
Chemical Composition
Mechanical Properties
Product Specifications
Plates
The thickness ranges from 0.2 to 65 mm. Width is between 1000 and 2000 mm. Length options include 2438 mm, 3000 mm, 6000 mm, and custom millimeters.
Rods
The diameter ranges from 5 to 1400 mm. The production methods include rolling, cold drawing, and forging.
Pipes
The diameter ranges from 6 to 1400 mm, and the wall thickness ranges from 0.5 to 150 mm.
Comparison Table
304
China: 0Cr18Ni9
USA: AISI 304
Japan: SUS304
Germany: X5CrNi18-10
321
China: 1Cr18Ni9T
USA: AISI 321
Japan: SUS321
Germany: X6CrNiTi18-10
310
China: 1Cr25Ni20
USA: AISI 310
Japan: SUS310
Germany: X15CrNi25-20
309
China: 0Cr23Ni13
USA: AISI 309
Japan: SUS309
Germany: X15CrNiSi20-12
347
China: 0Cr18Ni11Nb
USA: AISI 347
Japan: SUS347
Germany: X6CrNiNb18-10
301
China: 1Cr17Ni7
USA: AISI 301
Japan: SUS301
Germany: X10CrNi18-8
302
China: 1Cr18Ni9
USA: AISI 302
Japan: SUS302
Germany: X12CrNi18-9
303
China: 0Cr18Ni9
USA: AISI 303
Japan: SUS303
Germany: X8CrNiS18-9
316L
China: 00Cr17Ni14Mo2
USA: AISI 316L
Japan: SUS316L
Germany: X2CrNiMo17-12-2
904L
China: 00Cr20Ni25Mo4.5Cu
USA: AISI 904L
Japan: SUS904L
Germany: X1NiCrMoCu25-20-5
254 SMO
China: 00Cr20Ni18Mo6CuN
USA: UNS S31254
Japan: N/A
Germany: N/A
Production Standards
304
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
321
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
310
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
309
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
347
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
301
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
302
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
303
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
316L
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
904L
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: JIS G4303/G4304
German Standard: DIN EN 10088-1
254 SMO
Chinese Standard: GB/T 20878
American Standard: ASTM A240/A666
Japanese Standard: Not available
German Standard: Not available
Chemical Composition
304
UNS S30400, Chromium (Cr) 18-20%, Nickel (Ni) 8-10.5%, Carbon (C) ≤ 0.08%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 0.75%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.03%, Nitrogen (N) ≤ 0.1%.
321
UNS S32100, Chromium (Cr) 17-19%, Nickel (Ni) 9-12%, Carbon (C) ≤ 0.08%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 0.75%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.03%, Nitrogen (N) ≤ 0.1%.
310
UNS S31000, Chromium (Cr) 24-26%, Nickel (Ni) 19-22%, Carbon (C) ≤ 0.25%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 1.5%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.03%, Nitrogen (N) ≤ 0.1%.
309
UNS S30900, Chromium (Cr) 22-24%, Nickel (Ni) 12-15%, Carbon (C) ≤ 0.08%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 1%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.03%, Nitrogen (N) ≤ 0.1%.
347
UNS S34700, Chromium (Cr) 17-20%, Nickel (Ni) 9-13%, Carbon (C) ≤ 0.08%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 1%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.03%, Nitrogen (N) ≤ 0.1%.
301
UNS S30100, Chromium (Cr) 16-18%, Nickel (Ni) 6-8%, Carbon (C) ≤ 0.15%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 1%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.03%.
302
UNS S30200, Chromium (Cr) 17-19%, Nickel (Ni) 8-10%, Carbon (C) ≤ 0.15%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 1%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.03%, Nitrogen (N) ≤ 0.1%.
303
UNS S30300, Chromium (Cr) 17-19%, Nickel (Ni) 8-10%, Carbon (C) ≤ 0.15%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 1%, Phosphorus (P) ≤ 0.2%, Sulfur (S) ≤ 0.15%.
316L
UNS S31603, Chromium (Cr) 16-18.5%, Nickel (Ni) 10-14%, Carbon (C) ≤ 0.03%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 0.75%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.03%, Nitrogen (N) ≤ 0.1%.
904L
UNS N08904, Chromium (Cr) 19-23%, Nickel (Ni) 23-28%, Carbon (C) ≤ 0.02%, Manganese (Mn) ≤ 2%, Silicon (Si) ≤ 1%, Phosphorus (P) ≤ 0.045%, Sulfur (S) ≤ 0.035%.
254 SMO
UNS S31254, Chromium (Cr) 19.5-20.5%, Nickel (Ni) 17.5-18.5%, Carbon (C) ≤ 0.02%, Manganese (Mn) ≤ 1%, Silicon (Si) ≤ 0.65%, Phosphorus (P) ≤ 0.03%, Sulfur (S) ≤ 0.01%, Nitrogen (N) 0.18-0.22%.
Mechanical Properties
304 (UNS S30400)
Yield Strength (MPa) ≥ 205, Tensile Strength (MPa) ≥ 515, Elongation (%) ≥ 40.
321 (UNS S32100)
Yield Strength (MPa) ≥ 205, Tensile Strength (MPa) ≥ 515, Elongation (%) ≥ 40.
310 (UNS S31000)
Yield Strength (MPa) ≥ 205, Tensile Strength (MPa) ≥ 515, Elongation (%) ≥ 40.
309 (UNS S30900)
Yield Strength (MPa) ≥ 205, Tensile Strength (MPa) ≥ 515, Elongation (%) ≥ 40.
347 (UNS S34700)
Yield Strength (MPa) ≥ 205, Tensile Strength (MPa) ≥ 515, Elongation (%) ≥ 40.
301 (UNS S30100)
Yield Strength (MPa) ≥ 205, Tensile Strength (MPa) ≥ 515, Elongation (%) ≥ 40.
302 (UNS S30200)
Yield Strength (MPa) ≥ 205, Tensile Strength (MPa) ≥ 515, Elongation (%) ≥ 40.
303 (UNS S30300)
Yield Strength (MPa) ≥ 205, Tensile Strength (MPa) ≥ 515, Elongation (%) ≥ 40.
316L (UNS S31603)
Yield Strength (MPa) ≥ 170, Tensile Strength (MPa) ≥ 485, Elongation (%) ≥ 40.
904L (UNS N08904)
Yield Strength (MPa) ≥ 220, Tensile Strength (MPa) ≥ 490, Elongation (%) ≥ 35.
254 SMO (UNS S31254)
Yield Strength (MPa) ≥ 300, Tensile Strength (MPa) ≥ 650, Elongation (%) ≥ 35.
304 and 316 Stainless Steel
304 and 316 are both stainless steel materials, but their alloy compositions are slightly different, so they will have different performances in some specific cases. Generally speaking, 316 stainless steel is more corrosion-resistant than 304 stainless steel, especially in environments containing corrosive substances such as salt.
However, 304 stainless steel generally performs better than 316 stainless steel in high-temperature environments. The maximum service temperature of 304 stainless steel is about 870 degrees Celsius (1600 degrees Fahrenheit), while the maximum service temperature of 316 stainless steel is about 815 degrees Celsius (1500 degrees Fahrenheit). Therefore, 304 stainless steel is usually more suitable for use in high-temperature environments.
304 and 316 Stainless Steel Data Sheet
Chemical Composition
Mechanical Properties
Corrosion Resistance
Chemical Composition
Stainless Steel 304
Chromium (Cr): 18-20%
Nickel (Ni): 8%-10%
Molybdenum (Mo): none
Other Elements: A small amount of carbon, manganese, silicon, etc.
Stainless Steel 316L
Chromium (Cr): 16%-18%
Nickel (Ni): 10%-14%
Molybdenum (Mo): about 2%
Other Elements: A small amount of carbon, manganese, silicon, etc.
Mechanical Properties
Stainless Steel 304
Tensile strength (MPa): About 515
Yield strength (MPa): About 205
Elongation (%): ≥40
Hardness (HB): ≤187
Stainless Steel 316L
Tensile strength (MPa): About 485
Yield strength (MPa): About 170
Elongation (%): ≥40
Hardness (HB): ≤217
Corrosion Resistance
In terms of corrosion resistance, 316 stainless steel is generally superior to 304 stainless steel. This is because 316 stainless steel contains more nickel and molybdenum, making it perform better in corrosive environments. Specifically, 316 stainless steel is more stable when in contact with salt water, chlorides, and other corrosive chemicals, so it is more suitable for use in highly corrosive environments such as seawater environments and chemical industries.
Although 304 stainless steel also has good corrosion resistance, its corrosion resistance is slightly inferior to 316. In general atmosphere, fresh water, and other environments, 304 stainless steel is still an excellent choice, but if higher corrosion resistance is required, 316 stainless steel should be considered.
