Circular steel grinding h6 diameter 25 mm 1.0503 - C45 - 12 050

Specification of Steel 1.0503 (C45E / 12 050)

Numerical designation: 1.0503
EN/DIN: C45E
ČSN/STN: 12 050
AISI/SAE: approx. 1045

Chemical composition (typical values, %):
C: 0.42 – 0.50
Mn: 0.50 – 0.80
Si: <= 0.40
P: <= 0.025
S: <= 0.035

Properties:

• Good strength and toughness

• Suitable for heat treatment (quenching, tempering, hardening and tempering)

• Used for shafts, gears, pins, and connecting elements

? “h6” in the designation
“h6” indicates a diameter tolerance according to ISO for ground (precision) shafts.

Examples of h6 deviations:
o10 mm -> 0 / –0.006 mm
o20 mm -> 0 / –0.009 mm
o50 mm -> 0 / –0.013 mm
o100 mm -> 0 / –0.022 mm

1.0503 h6 therefore means: precision ground round bar made of C45E steel (12 050), manufactured to tolerance class h6.

Applications: Linear guides, guide rods, precision shafts, pins – wherever a precise diameter and smooth surface finish are required.