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AISI Type 403
Category Steel
Class Stainless steel
Type Martensitic standard
Common Names Chromium steel
Designations  France: AFNOR Z 12 C 13M
Germany: DIN 1.4024
Japan: JIS SUS 403 , JIS SUS 416
United Kingdom: B.S. 420 S 29 , B.S. En. 56 B
United States: AMS 5611 , AMS 5612 , ASTM A176 , ASTM A276 , ASTM A314 , ASTM A473 , ASTM A479 , ASTM A511 , ASTM A580 , FED QQ-S-763 , MIL SPEC MIL-S-862 , SAE 51403 , SAE J405 (51403) , UNS S40300

Composition
ElementWeight %
C  0.15 
Mn  1.00 
Si  0.50 
Cr  11.5-13.0 
P  0.04 
S  0.03 

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, hot finished (wire) 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) 9.9  0-100 more  
Thermal Conductivity (W/m-K) 24.9  100 more  
Glossary