A.6.2. Stainless Steel AISI 304L |
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PRODUCT |
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Type |
Metal Alloy |
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Chemical Composition |
8 to 12% Ni, 18 to 20% Cr, 2% Mn max, 1% Si max, 0.03% C max, Rem. Fe |
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Manufacturer |
Many European suppliers. |
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EXPERIENCE & AVAILABILITY |
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Development Status |
Commercial Product |
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Cost Range |
Low |
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Lot Reproducibility |
AMS 5647, DIN 1.4306, ISO 4954 X2CrNi1810E, B.S. 304 S 12 |
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Space Experience |
Good |
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GENERAL PROPERTIES (Physical, Mechanical, Thermal, Electrical, Optical) |
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Nature |
Typical Value |
Remarks |
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Specific Gravity |
8.0 |
@ Room Temperature |
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Ultimate Tensile Strength |
564 MPa |
@ Room Temperature |
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Proof Stress (0.2%) |
210 MPa |
@ Room Temperature |
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Elongation at Break |
58% |
@ Room Temperature |
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Thermal Conductivity |
16.2 W m -1 °C -1 |
@ Room Temperature |
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Thermal Expansion Coefficient |
17.3 x 10-6 °C -1 |
@ Room Temperature |
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Electrical Resistivity |
7.2 x 10-7 W m |
@ Room Temperature |
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PROPERTIES RELEVANT TO SPACE USE |
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Nature |
Typical Value |
Type of Test |
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Corrosion |
High resistance. |
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Stress Corrosion |
High resistance (refer to ECSS-Q-70-36). |
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SPECIAL RECOMMENDATIONS |
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· AISI 304L is the low carbon version of AISI 304 (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. |
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