Gray cast iron, in particular for disc brake components

The invention relates to gray cast iron comprising, in an iron matrix: carbon in an amount of between 3.60% and 3.90% by weight; silicon in an amount of between 1.40% and 1.90% by weight; titanium in an amount of not higher than 0.10% by weight; boron in an amount of between 0.04% and 0.07% by weight; vanadium in an amount of between 0.07% and 0.14% by weight; manganese in an amount of between 0.60% and 0.90% by weight; nickel in an amount of not higher than 0.20% by weight; chromium in an amount of not higher than 0.35% by weight; copper in an amount of not higher than 0.35% by weight; phosphorus in an amount of not more than 0.10% by weight; sulfur in an amount of not higher than 0.12% by weight; tin in an amount of not higher than 0.10% by weight; and molybdenum in an amount of not more than 0.10% by weight. 本发明涉及一种灰铸铁，灰铸铁包括在铁基体内的：按重量计的量介于3.60％与3.90％之间的碳；按重量计的量介于1.40％与1.90％之间的硅；按重量计的量不高于0.10％的钛；按重量计的量介于0.04％与0.07％之间的硼；按重量计的量介于0.07％与0.14％之间的钒；按重量计的量介于0.60％与0.90％之间的锰；按重量计的量不高于0.20％的镍；按重量计的量不高于0.35％的铬；按重量计的量不