Not all Hardening Processes
are Equal!
Parker Suparcase™ Ferrule Treatment Delivers Unrivalled Grip and Leak-Free Performance in Hydrogen Applications
The first step in ensuring the integrity of any system is to choose the right materials for the job. That’s why Parker supply fittings in a wide range of materials for all applications where corrosion could be an issue, and where high-integrity connections are required.
What is SuparcaseTM?
The Parker Suparcase™ surface treatment is an unique process that allows stainless steels and other alloys to be hardened without affecting, and even increasing, the corrosion resistance of the given materials. Parker has been using the proprietary Suparcase™ process to surface harden stainless steel ferrules for approximately 30 years. The process achieves a carbon supersaturated surface layer by altering the oxide passive layer on the surface of the stainless steel, without any detrimental effects.
30+
YEARS OF FIELD PERFORMANCE
- Suparcase™ process perfected by Parker gives the Differential Hardness
- Some competitor hardening processes corrode (i.e. Nitride or Edge Hardening)
- Suparcase™ increases the corrosion resistance
- Suparcase™ is applied to all back ferrules, all sizes
Suparcase™ Advantages
The result is a thin surface region supersaturated with carbon in solid solution. This surface region has some unusual advantageous properties
- Improved Hardness
Hardness Test – Suparcased samples are at least 250% harder than their untreated counterparts.
- Increased Fatigue Strength
Bending Test – Suparcased samples showed 50% increase in fatigue strength with respect to the same
untreated samples under the same number of cycles.
- No change in shape, size or colour
- Suparcase layer does not crack or delaminate during forming
- Outstanding Wear and Erosion Resistance
Wear Test performed on a high pressure homogenizer made out of Stainless Steel 316 – The Suparcase™ samples increased the wear & erosion resistance by 13 times in air and by 10 times in seawater with respect to their untreated counterparts.
- Exceptional Corrosion Resistance
ASTM G48 - Standard Test Methods for Pitting and Crevice Corrosion Resistance of Stainless Steels and Related Alloys by Use of Ferric Chloride Solution. Test Results on Type 316 Suparcased™ stainless steel:
ASTM G150 Critical Pitting Temperature.
CPT measures the temperature at which pitting is likely to start:
Download our white paper "Developments in Stainless Steel Instrumentation Tube Fittings" to see the full analysis of the rigorous ferrule testing—and the results.
Parker A-LOK tube fittings with SuparcaseTM hardened back ferrule have been successfully used in general hydrogen applications for over 30 years. Download the catalogue to learn more about Parker Instrumentation solutions for hydrogen application.
Parker Hannifin Manufacturing Ltd.
Instrumentation Products Division, Europe
Riverside Road
Barnstaple EX31 1NP
United Kingdom
phone 0044 1271 313131
©Parker Hannifin 2022
Parker Hannifin Corporation
Instrumentation Products Division
1005 A Cleaner Way
Huntsville AL 358050
United States of America
Tel.: +1 (256) 881 2040
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