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AISI 1045
Category Steel
Class Carbon steel
Type Standard
Designations  France: AFNOR XC 42 TS , AFNOR XC 45 , AFNOR XC 48 , AFNOR XC42
Germany: DIN 1.1191
Japan: JIS S 45C , JIS S 48 C
Sweden: SS 1672
United States: ASTM A29 , ASTM A510 , ASTM A519 , ASTM A576 , ASTM A682 , FED QQ-S-635 (C1045) , FED QQ-S-700 (1045) , SAE J403 , SAE J412 , SAE J414 , UNS G10450

Composition
ElementWeight %
C  0.43-0.50 
Mn  0.60-0.90 
P  0.04 (max) 
S  0.05 (max) 

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) 585  25  cold drawn, annealed (round bar (16-22 mm)) more
Yield Strength (Mpa) 505 
Elongation (%) 12 
Reduction in Area (%) 45 
Hardness (HB) 170  25  cold drawn, annealed (round bar (19-32 mm)) more

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 15.1  0-700 more annealed 
Glossary