904L Stainless Steel Plate
904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel is added with copper to improve its resistance to strong reducing acids, such as sulphuric acid.
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Physical Properties
| Grade | Density (kg/m³) | Elastic Modulus (GPa) | Mean Co-eff of Thermal Expansion (µm/m/°C) 0–100°C | Thermal Conductivity (W/m.K) @20°C | Specific Heat 0–100°C (J/kg.K) | Elec Resistivity (nΩ.m) |
|---|---|---|---|---|---|---|
| 904L | 7900 | 190 | 15 | 11.5 | 500 | 952 |
Grade Specification Comparison
| Grade | UNS No | Old British (BS) | Euronorm No | Euronorm Name | Swedish SS | Japanese JIS |
|---|---|---|---|---|---|---|
| 904L | N08904 | 904S13 | 1.4539 | X1NiCrMoCuN25-20-5 | 2562 | - |
Possible Alternative Grades
| Grade | Reasons for choosing grade 904L |
|---|---|
| 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. |
Stainless Steel Seamless Pipe
| Standard | ASTM A213/A213M | ASTM A312/A312M | JIS G3459 |
|---|---|---|---|
| Grade | TP304, TP304L, TP316, TP316L, TP317, TP317L | TP304, TP304L, TP316, TP316L, TP317, TP317L | SUS 304TB, SUS 304LTB, SUS 316TB, SUS 316LTB |
| Yield Strength | ≥170 MPa / ≥205 MPa | ||
| Tensile Strength | ≥485 MPa / ≥515 MPa | ||
| Elongation | ≥35% | ||
| Hardness | HRB < 90 | ||