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AISI Type 501
Category Steel
Class Stainless steel
Type Martensitic standard
Common Names Chromium steel
Designations  Germany: DIN 1.7362
United States: AMS 5502 , AMS 5602 , ASME SA194 (Type 3) , ASME SA387 (Type 5) , ASTM A193 , ASTM A194 , ASTM A314 , ASTM A387 (5) , ASTM A473 , SAE J405 (51501) , UNS S50100

ElementWeight %
C  0.10 (min) 
Mn  1.00 
Si  1.00 
Cr  4.0-6.0 
P  0.04 
S  0.03 
Mo  0.40-0.65 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.7-8.03 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 485  25  annealed (bar, plate) more
Yield Strength (Mpa) 205 
Elongation (%) 28 
Reduction in Area (%) 65 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 11.2  0-100 more  
Thermal Conductivity (W/m-K) 36.7  100 more