Temporary Corrosion Protection

Steel tubes from Mannesmann Precision Tubes are provided with a temporary corrosion protection from the mill prior to shipment. If the tubes shall be delivered without oil protection in exceptional cases, this must be indicated in the order. Other or additional corrosion protection measures can be agreed upon

Corrosion protection oils are mineral oils that contain among other things inhibitors – corrosion-inhibiting organic substances. On request we can provide the safety data sheets of the corrosion protection. The oil can be removed by the customer with appropriate aqueous neutral or alkaline cleaners or solvents. The protective effect of the oil is dependent on the atmospheric conditions and the storage duration.

By condensation water, which occurs on or in the tubes if the temperature drops below the dew point or at highly variable temperatures and high humidity, the oil film can become ineffective. This effect can also occur when stored under roof.

The corrosion protection lasts for about one to five months when stored under roof and in air-conditioned rooms.

The effectiveness of corrosion protection is always connected with the packaging measures. For longer transport and/or storage duration the tubes must be additionally protected.