Typical Size : 0.2362" Diameter x 2.3622" Length or 6mm Diameter x 60mm Length
Reference weight : 0.38 oz/rod or 10.86 gram/rod approximately
Reference quantity per pound : 42 rods/lb or 92 rods/kg approximately

Ferrocerium rod is made from Iron, Magnesium and mostly of an alloy of rare earth metals called mischmetal with an excellent pyrophoric percentage :  98%min. The required chemical composition:   

Mischmetal              76%MIN.
Fe (Ferro or Iron)     18 ~ 21%
Mg ( Magnesium )    1.5 ~ 2.5%
Hardness :               90 ~ 170 HB
Surface   : black lacquer coated, natural grey, colored
Size available :   6mm Diameter  x  5mm up to 1000mm Length.

Application : It is used as the firestarters or fire starter in scouting and camping, sparking entertainment, clockwork toys, strikers for welding torches, etc., it is the best compact firestarter we can easily use, plus its dependability,made it a favorite of survival experts, hunters, fishermen and campers. It works equally well when wet or dry. Swedish Fire Steel has even found its way into cabins and backyards as a fool-proof way to light stoves and gas-barbecues, it is used as part of earthquake survival kit, emergency kit,  survival kits, survival gear, emergency preparedness kit, disaster preparedness kit Emergency Survival Kit, 72 hour emergency kit, first aid kit, survival necklace, survival neck wallet, etc., also the good companion of the outdoor knife.
 
Operation :  You can get a bare rod or ferrocerium blanks and roll some tape on as a handle, that will give you twice as much ferro to work with and may save a little room as well. You simply pull your knife blade or striker slowly and firmly down the length of the ferrocerium rod, and sparks easily ignite a stove, barbecue, paper, dry grass bark, tinder, this iron rod is water resistant, and its 3000° C spark works well even when conditions are wet, cold, and less than optimal. this ferro cerium flint fire starter is a favorite of survival experts, hunters, fishermen, backpackers, campers and boy scouts, etc.,  Also the ferrocerium rod can be inserted into one side of Magnesium block to build a Magnesium Ferrocerium Firestarter, etc., 

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