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| PRODUCT DATA of AISI 316L |
| Material | AISI 316L |
| Product Datasheet | AK steel 316_316L_Data_Sheet Aubert Duval 316L_X18MBC |
| General Information | Low-carbon modification of Type 316 for welded construction |
| Effects of Space environment | The natural oxide layer is not repaired in vacuum when damaged. Cold welding might occur in contact to similar materials. |
| Chemical Composition | 12% Ni, 17% Cr, 2.5% Mo, 2% Mn, 1% Si, 0.03% C max, Rem. Fe |
| Name of Manufacturer | Many European suppliers. |
| EXPERIENCE IN PRACTICE |
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| Development Status | Commercial Product |
| Cost Range | Low |
| Lot Reproducibility | Good |
| Equivalent Designations | ISO 4954 X2CrNiMo17133E, UNS S31603, 1.4404, 1.4432, 1.4435, A4,AISI316L |
| Space Experience | Good |
| PHYSICAL PROPERTIES |
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| Crystal Structure | Face centered cubic (fcc) |
| Specific Gravity | 7.95 |
| Magnetic Properties | Nonmagnetic |
| ELASTIC PROPERTIES |
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| Tensile Modulus | 199 GPa |
| Shear Modulus | 79 GPa |
| Poisson Ratio | 0.26 |
| ELECTRICAL PROPERTIES |
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| Electrical Volume Resistivity | 7.4e-7 ohm.m @ RT |
| THERMAL PROPERTIES |
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| Thermal Conductivity | 15.8 W/m.K @RT |
| Thermal Expansion Coefficient | 17.2 μstrain/°C Remark:RT to 200°C |
| Melting Range | 1370 to 1400 °C |
| Specific Heat | 0.5 J/g.K |
| RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY |
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| General Corrosion Status | No specific corrosion protection required |
| Stress Corrosion Status | High Resistance to SCC: Table 1
Remark: acc. to ECSS-Q-ST-70-36C Data Quality: Design Data |
| EMF vs SCE | -0.07 V Remark: Measured in 3.5% NaCl solution Data Quality: Design Data |
| Bimetallic Corrosion | Can be connected without any restriction to: Cr, Au, Pt, C, Rh, Ag, Gun-metal, P-bronzes, Sn-bronzes, Ti+alloys
Can be connected in a non-controlled environment to the above and Cd, Cu, Brasses, Ni, monel, inconel, N-Mo alloys, 400 series stainless steel Can be connected in a clean room environment to above and Al-Cu alloys, Cu-Ni alloys, Al-bronzes, Si-bronzes Needs specific measures: All others Test:ECSS-Q-ST-70C Rev.1 Table 5.1 Data Quality: Design Data |
| FLUID SYSTEMS COMPATIBILITY |
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| Gaseous Oxygen (GOX) | Meets the mechanical impact requirements. No batch test required. |
| Liquid Oxygen (LOX) | Meets the mechanical impact requirements. No batch test required. |
| Nitrogen Tetroxide (N2O4) | SCC susceptibility is low and no fluid decomposition |
| Hydrazine (HDZE) | SCC susceptibility is low and no fluid decomposition |
| SPECIAL RECOMMENDATIONS |
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| Special Recommendations | AISI 316L is the low carbon version of AISI 316 (0.08 %C) which may be susceptible to intergranular corrosion in certain corrosive media after it is welded or otherwise heated at temperatures between 430 and 860°C. · For welded applications avoid the unstabilised, higher carbon, versions |