galvanized or phosphated seamless cold drawn precision steel tubes for hydraulic and pneumatic lines with improved corrosion protection.
Tolerances: according to EN 10305-4 “Steel tubes for precision applications – Technical delivery conditions- Part 4: Seamless cold drawn tubes for hydraulic and pneumatic power systems”.
Steel grade: E235 (St-35/37.4)
Delivery condition: +N (NBK) normalized under controlled athmospheree.
- Internal and external phosphate coating;
- Externally galvanized tubes with a zinc coating of 8 to 12 μm and subsequently chrome VI-free passivated (blue or iridescent silver).
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