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| PRODUCT DATA of Nitronic 40 |
| Material | Nitronic 40 |
| Safety Datasheet | MSDS_Nimonic |
| Product Datasheet | Nitronic_40 |
| General Information | 21Cr-6Ni-9Mn is a high manganese nitrogen strengthened, austenitic stainless steel that combines high strength in the annealed condition, excellent resistance to oxidation at high temperatures, good resistance to lead oxide and a high level of corrosion resistance at ambient temperatures. The alloy can be fabricated and formed much the same as Type 304 and 316, and is readily weldable. It remains nonmagnetic after severe cold work. |
| Chemical Composition | 19-21.5Cr, 5.5-7.5Ni, 8-10Mn, 0.15-0.4N, rem Fe |
| Name of Manufacturer | Armco/AK steel
AK Steel Ltd Saffron Ground, Ditchmore Lane, Stevenage, Hertfordshire,SG1 3LJ 0044 (0)1438 842910 0044 (0)1438 728362 unitedkingdom@aksteel.eu http://www.aksteel.co.uk/ http://www.aksteel.com/production_facilities/ |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| Equivalent Designations | 21-6-9, UNS S21900 |
| PHYSICAL PROPERTIES |
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| Specific Gravity | 7.83 |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 197 GPa |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 14 W/m.K |
| Thermal Expansion Coefficient | 16.7 μstrain/°C |
| Specific Heat | 0.5 J/g.K |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| Corrosion/Thermal | 21Cr-6Ni-9Mn has good resistance to high temperature oxidation in air |
| Stress Corrosion Status | High Resistance to SCC: Table 1
in annealed condition including weldments Remark: acc. to ECSS-Q-ST-70-36C Data Quality: Design Data |