The material of all our products can be choosed from W1 to W5 according to your requirements. For common use, W2 is OK. If you need improved corrosion resistance, we recommend W4, and for environments with high corrosion, W5 will be perfect. You can find more detailed informations and factors about the different material from the table below.
Material Combinations and Corrosion Resistances
Material
Screw
Housing
Band
Application
Corrosion Resistance In Salt Spray
W1
Zinc Plated
Zinc Plated
Zinc Plated
Household appliances, indoor plumbing work
Min. 44 hours
W2
Zinc Plated
DIN 1.4016 AISI 430
DIN 1.4016 AISI 430
Cars, lorries, mechanical engineering with low requirements in terms of corrosion resistance
Min. 72 hours
W3
DIN 1.4016 AISI 430
DIN 1.4016 AISI 430
DIN 1.4016 AISI 430
Automotive sector
Min. 200 hours
W4
DIN 1.4301 AISI 304
DIN 1.4301 AISI 304
DIN 1.4301 AISI 304
For critical connections in cars such as petrol pipes, top grade mechanical engineering, agricultural machinery, motorbikes, etc.
Min. 240 hours
W5
DIN 1.4401 AISI 316
DIN 1.4401 AISI 316
DIN 1.4401 AISI 316
In shipbuilding, defence technology, the foodstuffs industry, sewage treatment works, the chemical industry and mechanical engineering on top requirements.
