eFunda: Properties of Stainless Steel AISI Type 302
engineering fundamentals Stainless Steel AISI Type 302
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AISI Type 302
Category Steel
Class Stainless steel
Type Austenitic standard
Common Names Chromium-Nickel steel
Designations  United States: AMS 5515 , AMS 5516 , AMS 5636 , AMS 5637 , AMS 5688 , ASME SA240 , ASME SA479 , ASTM A167 , ASTM A240 , ASTM A276 , ASTM A313 , ASTM A314 , ASTM A368 , ASTM A473 , ASTM A478 , ASTM A479 , ASTM A492 , ASTM A493 , ASTM A511 , ASTM A550 , ASTM A554 , ASTM A580 , ASTM A666 , FED QQ-S-763 , FED QQ-S-766 , FED QQ-W-423 , MIL SPEC MIL-S-862 , SAE 30302 , SAE J230 , SAE J405 (30302) , UNS S30200

Composition

ElementWeight %
C  0.15 
Mn  2.00 
Si  1.00 
Cr  17.0-19.0 
Ni  8.0-10.0 
P  0.045 
S  0.03 

Mechanical Properties

Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 8 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 193 25  
Tensile Strength (Mpa) 515  25  hot finished and annealed (wire) more
Yield Strength (Mpa) 205 
Elongation (%) 40 
Reduction in Area (%) 50 
Hardness (HRB) 88 (max)  25  annealed (plate, sheet, strip) 

Thermal Properties

Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 17.2  0-100 more  
Thermal Conductivity (W/m-K) 16.2  100 more  
Specific Heat (J/kg-K) 500  0-100   

Electric Properties

Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 720  25   
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