12 фев 1913 г. - First stainless steel
Описание:
Harry Brearley was researching ways to stop excessive wear in rifle barrels for the British Army when he discovered that by adding Chromium to an Iron Carbon Mix, he ended up with a bright surface finish which became Stainless Steel. Stainless Steel contains about 10% Chromium and 8% nickel.Добавлено на ленту времени:
Дата:
12 фев 1913 г.
Сейчас
~ 112 г назад