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HIPERCHROMIUM® SERIES

Exceptional corrosion resistance
Exceptional quality able to satisfy extreme requirements: standing a 500 hours test in neutral salt spray, according to ISO 9227, obtaining a high rating according to ISO 10.289: rating 10.


Diameters up to 20 mm, Double Chromelayer 2x14 μm, tolerancef 8

Diameters over 20 mm, Double Chromelayer 2x20 μm min., tolerance f7

Chromelayer hardness HRC 66-69
(HV 0,1 / HV 850-1000)

Roughness Ra max. 0,20 μm

500 hours
in Neutral Salt Spray
Rating 10

Technical Data

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LABORATORY TEST according to ISO 9227 (NSS)
Results evaluation according to ISO 10.289

DIAMETERS > 25 mm

 
StraightnessBetter than 0,5 / 2000 m
ToleranceAccording to ISO f7
Out of roundnessWithin ½ of ISO tolerance field
Surface RoughnessRa < 0,2 μm
Rt < 3 μm max.
Chromium Layer HardnessHRC 66 - 69 (HV 0,1 / HV850-1000)
Steel GradesCK 45, 18MnV5 / 20MnV6
42MnV7, 45MnV1
38MnVS6, 42CrMo4
Induction HardeningCK 45/50,
45MnV1, 20MnV6
38MnVS6, 42CrMo4

STELMI BARS ARE FULLY CHROMED UP TO THE ENDS



Gauss distribution of corrosion tests results.
Stelmi: Rating 10
Competition: rating 9 as anaverage.

Gauss distribution of
corrosion tests results The graphic shows the substantial difference between what Stelmi declares about the evaluation of the corrosion resistance (Rating) and what is often declared by other producers. Gauss distribution of
corrosion tests results »

Category: Linear shafts
Application fields: All applications
Application fields

the range

Since 2001 Stelmi is world leader in corrosion resistence of its chrome bars and tubes.

The HIPERCHROMIUM technology has established new standards in the fluidpower industry: 200, 500 and 1000 hours of corrosion resistance in Neutral Salt Spray test ( in compliance with ISO 9227 standard) with a minimum rating ) ( according to ISO 10289 standard).
A technological milestone than many companes still try to reach.
Thousands tests in our quality laboratory confirmed by indipendent laboratories and by the most prestigious Customers around the world proved the reliability of this technology.
The HIPERCHROMIUM TECHNOLOGY is fully developed in our R&R Department: mone than 35 years of technological know-how, proudly MADE IN ITALY.

INFINITY® SERIES
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