Storage of coarse titanium turnings and chips is relatively safe. Storage or accumulation of titanium fines constitutes a fire hazard. Clean machines and good workshop practice are usually sufficient to avoid any danger of fire when machining titanium.

Titanium chips, turnings or fines should not be allowed to accumulate in machines. If a fire does start its effect can be minimized by isolating the burning material from the bulk. The fire can then be extinguished with a dry powder extinguisher. A sodium chloride base powder can be an effective agent. Use National Fire Protection Association Class D extinguisher (salt). Use salt or sand to reduce oxygen. Fire may be isolated and allowed to burn itself until Fire or explosions may be initiated by exposing any concentrated dust suspension in an enclosed area to spark or flame. Generally, titanium dust or powder must be minus 100-mesh in order to create an explosive dust-air mixture Cutting and grinding fires can present an explosion hazard when airborne in levels above 35 mgim- (U.S. Bureau of Mines Report of investigatzon No. 4835)