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Technical Data
SS304
Maximum temperature: 900°C (1650°F). Most widely used low temperature sheath material. Extensively used in food, beverage, chemical and other industries where corrosion resistance is required. Subject to damaging carbide precipitation in 482°C to 871°C (900° to 1600°F) range. Lowest cost corrosion resistant sheath material available.
SS321
Maximum temperature: 871°C (1600°F). Similar to 304 SS except titanium stabilized for intergranular corrosion. This alloy is designed to overcome susceptibility to carbide precipitation in the 482° to 871°C (900° to 1600°F) range. Used in aerospace and chemical applications.
SS316
Maximum temperature: 900°C (1650°F). Best corrosion resistance of the austenitic stainless steel grades. Good corrosion resistance in H2S. Widely used in the food and chemical industry. Subject to damaging carbide precipitation in 482° to 871°C (900° to 1600°F) range.
Chemical Composition of Stainless Steel Sheath
| Sheath Material | Chemical Composition | Max. Temp. In Air | Melting Temp. | |||||||
| C | Si | Mn | P | S | Cr | Ni | Others | |||
| SS304 | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.03 | 17-19 | 8-11 | - | 900℃ | 1405℃ |
| SS321 | ≤0.12 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.03 | 17-19 | 8-11 | 5(C%-0.02)~0.08 | 870℃ | 1400℃ |
| SS316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.03 | 16-19 | 11-14 | Mo: 1.8-2.5 | 925℃ | 1370℃ |
| Sheath material | Sheath OD (mm) | Wall Thickness (mm) | Wire Dia. (mm) | Coil Length(m) |
| SS304 SS321 SS316 | 3.0 | 0.30-0.48 | 0.45-0.60 | 100 |
| 3.2 | 0.32-0.58 | 0.48-0.68 | 100 | |
| 4.0 | 0.40-0.62 | 0.60-0.70 | 70 | |
| 4.8 | 0.48-0.83 | 0.72-0.85 | 70 | |
| 5.0 | 0.50-0.85 | 0.75-0.90 | 50 | |
| 6.0 | 0.60-1.08 | 0.90-1.10 | 50 | |
| 6.4 | 0.64-1.15 | 0.92-1.12 | 40 | |
| 8.0 | 0.80-1.44 | 1.20-1.40 | 30 |
Order Code
Order code
| Order No. | Wire Calibration | Conductors | Conductor Materials | Sheath OD (mm) | Sheath Material |
| MIR-NI-4W-3.0-SS304 | RTD | 4 | Ni | 3.0 | SS 304 |
| MIR-NI-4W-3.0-SS321 | 4 | Ni | 3.0 | SS 321 | |
| MIR-NI-4W-3.0-SS316 | 4 | Ni | 3.0 | SS 316 | |
| MIR-NI-4W-3.2-SS304 | 4 | Ni | 3.2 | SS 304 | |
| MIR-NI-4W-3.2-SS321 | 4 | Ni | 3.2 | SS 321 | |
| MIR-NI-4W-3.2-SS316 | 4 | Ni | 3.2 | SS 316 | |
| MIR-NI-4W-4.0-SS304 | 4 | Ni | 4.0 | SS 304 | |
| MIR-NI-4W-4.0-SS321 | 4 | Ni | 4.0 | SS 321 | |
| MIR-NI-4W-4.0-SS316 | 4 | Ni | 4.0 | SS 316 | |
| MIR-NI-4W-4.8-SS304 | 4 | Ni | 4.8 | SS 304 | |
| MIR-NI-4W-4.8-SS321 | 4 | Ni | 4.8 | SS 321 | |
| MIR-NI-4W-4.8-SS316 | 4 | Ni | 4.8 | SS 316 | |
| MIR-NI-4W-5.0-SS304 | 4 | Ni | 5.0 | SS 304 | |
| MIR-NI-4W-5.0-SS321 | 4 | Ni | 5.0 | SS 321 | |
| MIR-NI-4W-5.0-SS316 | 4 | Ni | 5.0 | SS 316 | |
| MIR-NI-4W-6.0-SS304 | 4 | Ni | 6.0 | SS 304 | |
| MIR-NI-4W-6.0-SS321 | 4 | Ni | 6.0 | SS 321 | |
| MIR-NI-4W-6.0-SS316 | 4 | Ni | 6.0 | SS 316 | |
| MIR-NI-4W-6.4-SS304 | 4 | Ni | 6.4 | SS 304 | |
| MIR-NI-4W-6.4-SS321 | 4 | Ni | 6.4 | SS 321 | |
| MIR-NI-4W-6.4-SS316 | 4 | Ni | 6.4 | SS 316 | |
| MIR-NI-4W-8.0-SS304 | 4 | Ni | 8.0 | SS 304 | |
| MIR-NI-4W-8.0-SS321 | 4 | Ni | 8.0 | SS 321 | |
| MIR-NI-4W-8.0-SS316 | 4 | Ni | 8.0 | SS 316 |
