Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of 904l 1.4539 material stainless steel in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
904L stainless steel, also known as 1.4539 material, is a high-quality austenitic stainless steel. One of the key factors that sets 904L apart from other stainless steels is its unique composition, which contains higher levels of nickel, chromium and molybdenum compared to standard stainless steel. This increases resistance to various acids, including sulfuric, phosphoric and acetic acids.
904L stainless steel is versatile and can be used in a variety of applications, including heat exchangers, pipelines, storage tanks and pumps. It is also commonly used in the production of flanges, fittings and valves for high pressure and high temperature applications, as well as in the manufacture of medical devices and the aerospace industry.
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904L (1.4539) Chemical Composition |
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| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | Cu |
| 904L (1.4539) | %0.02 max | %2.0 max | %1.0 max | %0.045 max | %~0.01 min |
%19-21 |
%24-26 |
%4-5 | %1.2-2.0 |
Mechanical properties (at room temperature in annealed condition)
| Product Form | ||||||||
|---|---|---|---|---|---|---|---|---|
| C | H | P | L | L | TW/TS | |||
| Thickness (mm) Max. | 8.0 | 13.5 | 75 | 160 | 2502) | 60 | ||
| Yield Strength | Rp0.2 N/mm2 | 2403) | 2203) | 2203) | 2304) | 2305) | 2306) | |
| Rp1.0 N/mm2 | 2703) | 2603) | 2603) | 2603) | 2603) | 2503) | ||
| Tensile Strength | Rm N/mm2 | 530 - 7303) | 530 - 7303) | 520 - 7203) | 530 - 7304) | 530 - 7305) | 520 - 7206) | |
| Elongation min. in % | Jmin (Longitudinal) | - | 100 | 100 | 100 | - | 120 | |
| Jmin (Transverse) | - | 60 | 60 | - | 60 | 90 | ||
Possible alternative grades to grade 904L stainless steels
| 316L | A lower cost alternative, but with much lower corrosion resistance. |
|---|---|
| 6Mo | A higher resistance to pitting and crevice corrosion is needed. |
| 2205 | A very similar corrosion resistance, with the 2205 having higher mechanical strength, and at a lower cost to 904L. (2205 not suitable for temperatures above 300°C.) |
| Super duplex | Higher corrosion resistance is needed, together with a higher strength than 904L. |
Mechanical and physical properties of 1.4539, X1NiCrMoCu25-20-5, AISI 904L at room temperature:
Tensile strength, Rm = 530 - 570 MPa
Yield point, Rp0,2: >230 MPa
Elongation, A: >35%
Modulus of elasticity,E: 195 GPa
Heat capacity, cp20℃= 450 J * kg-1 * K-1
Heat conductivity, λ: 12 W * m-1 * K-1
Linear Expansion Factor, α20℃=15,8 * 10-6 K-1
Specific resistance: 1 Ω * mm2/m
Hardness: <230 HB
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