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AISI Type 310
Category Steel
Class Stainless steel
Type Austenitic standard
Common Names Chromium-Nickel steel
Designations  France: AFNOR Z 12 CNS 25.20
Germany: DIN 1.4841
Italy: UNI X 16 CrNiSi 25 20 , UNI X 22 CrNi 25 20
Japan: JIS SUS Y 31O
United Kingdom: B.S. 310 S 24
United States: AMS 5694 , AMS 5695 , ASME SA182 , ASME SA213 , ASME SA249 , ASME SA312 , ASME SA358 , ASME SA403 , ASME SA409 , ASTM A167 , ASTM A182 , ASTM A213 , ASTM A249 , ASTM A276 , ASTM A312 , ASTM A314 , ASTM A358 , ASTM A403 , ASTM A409 , ASTM A473 , ASTM A511 , ASTM A580 , ASTM A632 , FED QQ-S-763 , FED QQ-S-766 , FED QQ-W-423 , FED STD-66 , MIL SPEC MIL-S-862 , SAE 30310 , SAE J405 (30310) , UNS S31000

Composition
ElementWeight %
C  0.25 
Mn  2.00 
Si  1.50 
Cr  24.0-26.0 
Ni  19.0-22.0 
P  0.045 
S  0.03 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 8 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 200 25  
Tensile Strength (Mpa) 515  25  hot finished and annealed (plate, sheet, strip) more
Yield Strength (Mpa) 205 
Elongation (%) 40 
Reduction in Area (%) 50 
Hardness (HRB) 95 (max)  25  annealed (plate, sheet, strip) 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 15.9  0-100 more  
Thermal Conductivity (W/m-K) 14.2  100 more  
Specific Heat (J/kg-K) 500  0-100   

Electric Properties
Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 780  25   
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