Product range chrome bars and chrome tubes

Small and large series can be processed in batch sizes of 500 m up to 50.000 m/a per dimension in layer strengths from 20 to 40 µm.

  Chome bars Chrome tubes Nickel-plated
chrome bars and tubes
Hardened chrome bars
Diameters 20-100mm 20-100mm 20-150mm 20-100mm
Length min 5.000 mm 5.000 mm 200 mm 5.000 mm
Length max 6.800 mm 6.800 mm 2.000 mm 6.800 mm
Material C45 R, 20MnV6
+ 42CRM04 and similar
St 52 and similar C45 R, 20MnV6,
St 52 and similar
C45 R and similar
Layer thickness Cr 25 µm +5 Cr 25 µm +5 Ni 25 µm +,
Cr 25 µm +5
Cr 25 µm +5
Tolerance ISO 7 ISO 7 ISO 7 ISO 7
Surface roughness R max ≤ 2 R max ≤ 2 R max ≤ 2 R max ≤ 2
Roundness ½ tolerance ½ tolerance ½ tolerance ½ tolerance
Percentage contact area Mr ≥ 50 % Mr ≥ 50 % Mr ≥ 50 % Mr ≥ 50 %
Mikrocracks/cm 300 – 600 300 – 600 300 – 600 300 – 600
Hardness (HV, HRC) ≥ 900, ≥ 65 ≥ 900, ≥ 65 ≥ 900, ≥ 65 ≥ 900, ≥ 65
Straitness (mm/m) ≤ 0,1/1.000 ≤ 0,1/1.000 ≤ 0,1/1.000 ≤ 0,1/1.000
Corrosion resistance
(ISO 9227)
100 h/200 h 100 h/200 h 1000 h 100 h/200 h
Rating
(ISO 10289)
9 9 9 9