eFunda: Properties of Alloy Steel AISI Type 430F
engineering fundamentals Alloy Steel AISI Type 430F
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AISI Type 430F
Category Steel
Class Stainless steel
Type Ferritic standard
Common Names Chromium steel
Designations  France: AFNOR Z 10 CF 17
Germany: DIN 1.4104
Italy: UNI x 10 CrS 17
Japan: JIS SUS 430
Sweden: SS 2383
United States: ASTM A314 , ASTM A473 , ASTM A581 , ASTM A582 , MIL SPEC MIL-S-862 , SAE 51430F , SAE J405 (51430F) , UNS S43020

Composition

ElementWeight %
C  0.12 
Mn  1.25 
Si  1.00 
Cr  16.0-18.0 
P  0.06 
S  0.15 (min) 
Mo(optional)  0.6 

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) 722.5  25  annealed (wire) 
Yield Strength (Mpa) 105 
Elongation (%)  
Reduction in Area (%)  

Thermal Properties

Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 10.4  0-100 more  
Thermal Conductivity (W/m-K) 26.1  100 more  
Specific Heat (J/kg-K) 460  0-100   

Electric Properties

Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 600  25   
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