Information On Machining/Treating Magnesium Components - Ah60.00-P-0023-01R

Model all (CAR) 

General: 

Magnesium has the property of forming a compound with oxygen extremely quickly. Nevertheless it is corrosion-resistant when exposed to air, because it forms a tight, continuous thin oxide skin which protects the metal beneath from further oxidation.

If magnesium ignites, then it burns at approx. > 500°C with a blinding white light and strong heat development (approx. 2400°C).

Magnesium dust combusts and explodes just as easily as aluminum dust.

For additional information see Accident Prevention Regulations or the regulations of the trade association.

Machining/treating magnesium: 

• Machining/treating magnesium components by means of an open flame (welding, cutting, soldering, heating, etc.) or by spark-creating grinding is prohibited.
• Any components that suffer structural damage must be replaced completely.

Corrosion protection: 

• Faulty coatings and points affected by corrosion should never be repaired for corrosion reasons.
• Repair over large surfaces should not be performed for reasons of corrosion.
• To prevent contact corrosion on the threaded connections of the components (e.g. internal door parts); the contact surfaces and screw shanks must be coated with paint or the screws must be replaced after dismantling.

Do not use zinc dust paint!

• Plastic bushings and disks installed as standard must not be removed and damaged parts must be replaced.
• Due to extremely severe contact corrosion, damaged threads in the magnesium pressure castings may only be repaired with the MB-approved Helicoil thread inserts made of aluminum.