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AISI Type 429
Category Steel
Class Stainless steel
Type Ferritic standard
Common Names Chromium steel
Designations  United States: ASTM A176 , SAE 51429

Composition
ElementWeight %
C  0.12 
Mn  1.00 
Si  1.00 
Cr  14.0-16.0 
P  0.04 
S  0.03 

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) 200 25  
Tensile Strength (Mpa) 490  25  annealed (plate, sheet, strip) more
Yield Strength (Mpa) 310 
Elongation (%) 30 
Reduction in Area (%) 65 
Hardness (HRB) 88 (max)  25  annealed (plate, sheet, strip) 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 10.3  0-100  
Thermal Conductivity (W/m-K) 25.6  100   
Specific Heat (J/kg-K) 460  0-100   

Electric Properties
Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 590  25   
Glossary