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Material type
Metal
Material name
Mild steel 1045 | 1.0503 | C45 | EN8
Alternative names
C45
Process compatibility
CNC machining
1045 is a medium tensile carbon steel with good strength and impact properties. It has reasonably good weldability in the hot rolled or normalised condition.As a disadvantage, this material has low hardening capabilities.
Mechanical properties
Ultimate tensile strength
600 - 630 MPa
Yield strength
310 - 320 MPa
Young's modulus
(modulus of elasticity)
(modulus of elasticity)
190 - 205 GPa
Elongation at break
16 %
Physical properties
Corrosion resistance
Poor
Magnetism
Semi-magnetic
Weldability
High
Thermal properties
Thermal expansion coefficent
11.2 - 12 10^-6/ºC
Thermal conductivity
51 W/(m⋅°C)
Electrical properties
Electrical resistivity
16 - 19 μΩ*cm
Post treatments
Post-Processing
Annealing & Cold working
Anodizing compatibility
Not suitable
Common applications
Axles
Bolts
Forged connection rods
Crankshafts
Torsion bars