1.0503 / 1.0503.07

Material No.

1.0503 / 1.0503.07

US standard (AISI)

1045, 1043 / --

Abbreviation

C45 / C45 K

Old designation

Description

Carbon steel

Composition
Alloy constituents [%]

C: 0.42 – 0.50
Si: ≤ 0.40
Mn: 0.50 – 0.80
P: ≤ 0.045
S: ≤ 0.045
Cr: ≤ 0.40
Mo: ≤ 0.10
Ni: ≤ 0.40

Density [g/cm³]

7.85

Yield point
Rp0.2 / Re[N/mm²]

>= 275

Tensile strength
Rm [N/mm²]

>= 560

Elongation after fracture
A [%]

>= 16

Machinability

Good

Weldability

Unsuitable

Heat treatment

Possible

Other properties

Main uses

Stops, base rails, stops with positive down force, cam action indexing plungers, clamp straps, hook clamp holders