Hose and heavy-duty clamps: comparison of materials

Salt spray tests revealed a significant qualitative difference between galvanized iron and stainless-steel clamping systems.

The reliability of hose clamps and heavy-duty clamps, used to secure connections in various systems and machinery, depends on several factors, including the type of material used in their production. Clamping systems are marked with a classification that identifies the manufacturing material: W1 is the classification used for galvanized iron hose clamp, which ensures adequate tightness in dry and low-humidity environments, while W2 indicates hose clamps made of stainless steel, whose composition guarantees high resistance in sensitive environments with a high risk of corrosion and oxidation.

W1 and W2 undergo testing

It's not just a label, but a genuine guarantee of tightness and durability over time. To demonstrate this, we tested the quality of our AISI430 stainless steel clamping systems, by testing them in salt spray with other galvanized iron clamps available on the market.

Before the Test

After 24 hours

After just 24 hours at around 35°C, the galvanized iron clamp showed initial signs of deterioration, displaying white rust on more than 5% of the surface, while the stainless-steel clamp showed no structural or qualitative changes. 

After 72 hours

After 72 hours, the results definitively prove the superior corrosion resistance of our W2-marked hose clamp compared to the W1-marked clamp. The latter exhibited red rust on over 5% of its surface.

Fastening solutions for professional use

We are the only company able to combine the high quality of stainless-steel clamping systems with the competitive price of a galvanized iron hose clamp, ensuring the performance and durability of stainless steel even in the most economical applications..

Consult our catalogue to find the most suitable solution for your application and contact us to learn more!