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AISI Type 201
Category Steel
Class Stainless steel
Type Austenitic standard
Common Names Chromium-Manganese-Nickel steel
Designations  United States: ASME SA412 , ASTM A276 , ASTM A276 , ASTM A412 , ASTM A429 , ASTM A666 , FED QQ-S-766 , SAE 30201 , SAE J405 (30201) , UNS S20100

Composition
ElementWeight %
C  0.15 
Mn  5.5-7.5 
Si  1.00 
Cr  16.0-18.0 
Ni  3.5-5.5 
P  0.06 
S  0.03 
N  0.25 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.8 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 197 25  
Tensile Strength (Mpa) 515  25  annealed (sheet, strip) more
Yield Strength (Mpa) 275 
Elongation (%) 40 
Reduction in Area (%) 45 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 15.7  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) 690  25   
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