1.4404 is a lower carbon grade of 1.4401 steel. It exhibits good acid resistance. It is not susceptible to grain boundary carbide precipitation and therefore is not affected by sensitization. It is primarily used for welded parts thicker than 0.2 inches. The austenitic structure also provides the solid toughness of these stainless grades, also at lower temperatures down to absolute zero (-273 degrees Celsius).
Also known as 316L stainless steel, 1.4404 has a lower carbon content than its family grade 1.4401 steel. Despite its lower carbon content, 1.4404 is very similar to 1.4401 in most commercial and industrial applications. Importantly, the two related grades also cost almost the same, have a long service life, excellent corrosion resistance, and are an excellent choice for stress center type applications.
Chemical composition and physical properties of 1.4401 and 1.4404 stainless steels:
| Property | 1.4401 (316) | 1.4404 (316L) |
|---|---|---|
| Chemical Composition (wt%) | ||
| Carbon (C) | Max 0.08 | Max 0.03 |
| Chromium (Cr) | 16.0 - 18.0 | 16.0 - 18.0 |
| Nickel (Ni) | 10.0 - 14.0 | 10.0 - 14.0 |
| Molybdenum (Mo) | 2.0 - 3.0 | 2.0 - 3.0 |
| Phosphorus (P) | Max 0.045 | Max 0.045 |
| Sulphur (S) | Max 0.030 | Max 0.030 |
| Silicon (Si) | Max 1.0 | Max 1.0 |
| Physical Properties | ||
| Density (g/cm³) | ~7.98 | ~7.98 |
| Melting Point (°C) | 1375-1400 | 1375-1400 |
| Thermal Conductivity (W/m·K) | ~16.3 | ~16.3 |
| Specific Heat Capacity (J/kg·K) | ~500 | ~500 |
| Electrical Resistivity (µΩ·m) | ~72 at 20°C | ~72 at 20°C |
We offer 1.4401 in standard product forms including tubes, pipes, plates, strips, sheets, round bars, flat bars, forgings, hexagonal bars and wires. These products are available in a wide variety of sizes. For detailed specifications and product information, please visit the following website.
Products:https://www.gneestainless.com
GNEE is a professional supplier of austenitic stainless steel, super austenitic stainless steel, duplex steel, super duplex steel and other materials. At present, the total investment is RMB 30 million, the plant area is more than 35,000 square meters, and the number of employees is more than 200. It has internationally advanced high-precision production equipment and first-class processing technology. The product implementation standards include: national standard, American standard, Japanese standard, German standard, European standard, Russian standard, etc. At the same time, non-standard products can be customized according to customer requirements.
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