Alloy 904L
Alloy 904L was originally developed to withstand environments containing dilute sulfuric acid. It also offers good resistance to other inorganic acids such as hot phosphoric acid as well as most organic acids.
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Description
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of alloy 904l in China. With abundant experience, we warmly welcome you to wholesale customized alloy 904l from our factory. For price consultation, contact us.
Type 904L is a high alloy austenitic stainless steel that is known for its corrosion properties. This low carbon version of Type 904 stainless steel also offers other benefits to users including:
Non-magnetic
Stronger corrosion properties than Type 316L an 317L
Good resistance to sulphuric, phosphoric and acetic acids
High resistance to crevice and stress corrosion cracking
Excellent formability and weldability
With its highly alloyed chemistry — 25% nickel and 4.5% molybdenum, 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.
Alloy 904L was originally developed to withstand environments containing dilute sulfuric acid. It also offers good resistance to other inorganic acids such as hot phosphoric acid as well as most organic acids.
Alloy 904L is easily welded and processed by standard shop fabrication practices.
General Properties
Alloy 904L (UNS N08904) is a superaustenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance.
With its highly alloyed chemistry — 25% nickel and 4.5% molybdenum, 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.
Alloy 904L was originally developed to withstand environments containing dilute sulfuric acid. It also offers good resistance to other inorganic acids such as hot phosphoric acid as well as most organic acids.
Chemical Composition (%) of 904L Stainless Steel Plate
| Chromium | Nickel | Molybdenum | Silicon | Manganese | Phosphorus | Copper | Sulfur |
| 19.00-23.00 | 23.00-28.00 | 4.0-5.0 | 1.00 | 2.00 max | 0.045 max | 1.0-2.0 | 0.03 max |
Mechanical Properties of 904L Stainless Steel Plate
| Yield Strength 0.2% Offset | Ultimate Tensile Strength | Elongationin 2 in. | Hardness | ||
| psi (min.) | (MPa) | psi (min.) | (MPa) | % (min.) | (max.) |
| 31,000 | 220 | 71,000 | 490 | 36 | 70-90 Brinell |
Physical Properties of 904L Stainless Steel Plate
| Density (lb. / cu. in.) | Specific Gravity | Specific Heat (Btu/lb Deg F – [32-212 Deg F]) | Melting Range | Modulus of Elasticity |
| 0.287 | 7.95 | 0.11 | 2372 – 2534°F | 28.0 x 106psi 190 GPa |
Alloy 904L is easily welded and processed by standard shop fabrication practices.
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