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AISI Type 430
Category Steel
Class Stainless steel
Type Ferritic standard
Common Names Chromium steel
Designations  France: AFNOR Z 8 C 17
Germany: DIN 1.4016
Italy: UNI X 8 Cr17
Japan: JIS SUS 430
Sweden: SS 2320
United Kingdom: B.S. 430 S 15
United States: AMS 5503 , AMS 5627 , ASME SA182 , ASME SA240 , ASME SA268 , ASME SA479 , ASTM A176 , ASTM A182 , ASTM A240 , ASTM A268 , ASTM A276 , ASTM A314 , ASTM A473 , ASTM A479 , ASTM A493 , ASTM A511 , ASTM A554 , ASTM A580 , ASTM A651 , FED QQ-S-763 , FED QQ-S-766 , FED QQ-W-423 , FED STD-66 , MIL SPEC MIL-S-862 , SAE 51430 , SAE J405 (51430) , UNS S43000

Composition
ElementWeight %
C  0.12 
Mn  1.00 
Si  1.00 
Cr  16.0-18.0 
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) 480  25  annealed, hot finished (plate, sheet, strip) more
Yield Strength (Mpa) 275 
Elongation (%) 20 
Reduction in Area (%) 45 
Hardness (HRB) 88 (max)  25  annealed (plate, sheet, strip) 

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   
Glossary