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AISI 1025
Category Steel
Class Carbon steel
Type Standard
Designations  Germany: DIN 1.1158
Japan: JIS S 25 C , JIS S 28 C
United States: AMS 5075 , AMS 5075B , AMS 5077 , AMS 5077B , ASTM A29 , ASTM A510 , ASTM A512 , ASTM A519 , ASTM A575 , ASTM A576 , FED QQ-S-700 (1025) , MIL SPEC MIL-S-11310 (CS1025) , SAE J403 , SAE J412 , SAE J414 , UNS G10250

Composition
ElementWeight %
C  0.22-0.28 
Mn  0.30-0.60 
P  0.04 (max) 
S  0.05 (max) 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.858 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 440  25  cold drawn (round bar (19-32 mm)) more
Yield Strength (Mpa) 370 
Elongation (%) 15 
Reduction in Area (%) 40 
Hardness (HB) 126  25  cold drawn (round bar (19-32 mm)) more

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 12.1  20-100 more  
Thermal Conductivity (W/m-K) 51.9  0 more  
Specific Heat (J/kg-K) 486  50-100 more  

Electric Properties
Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 169  20 more  
Glossary