eFunda: Properties of Stainless Steel AISI Type 384
engineering fundamentals Stainless Steel AISI Type 384
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AISI Type 384
Category Steel
Class Stainless steel
Type Austenitic standard
Common Names Chromium-Nickel steel
Designations  United States: ASTM A493 , SAE 30384 , SAE J405 (30384) , UNS S38400

Composition

ElementWeight %
C  0.08 
Mn  2.00 
Si  1.00 
Cr  15.0-17.0 
Ni  17.0-19.0 
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) 450-585 25  annealed (wire under 4mm in diameter) more
Yield Strength (Mpa) 65-85
Elongation (%)  
Reduction in Area (%)  

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) 790  25   
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