Hard Chrome Plated Rod

Mechanical Properties

CK45(EN8) Diameter mm Yield Strength (Re) min Tensile Strength (Rm)min
Ø ≤ 16 340 N/mm2 620 N/mm2
16 < Ø ≤ 100 305 N/mm2 580 N/mm2
100 < Ø ≤ 250 275 N/mm2 560 N/mm2

Chemical Composition % max

CK45(EN8) C Si Mn P S V C Si Mn P S V
0.42-0.50 0.40 max 0.50-0.80 0.035 0.035 -

Tolerances

Outside Diameter Diameter mm Yield Strength (Re) min Tensile Strength (Rm)min
Ø ≤ 20mm f8,
Ø > 20mm f7.
Roundness within
½ of tolerances.		 0.2 μm Ra or better 850 HV (0.1) min 0.3mm/m on the total
length of bar
Size Range Stock sizes up to 150 mm
Length, Run Out 0.15m to 7.5m
Chrome Thickness 20 to 25 microns
Ovality 0.02mm
Accuracy External Diameter up to 2 microns
Corrosion
Resistance		 CK45 (EN8) 40/120/200 Hours in Neutral, Salt Spray Rating minimum 9.