Stainless steel cup, China Stainless steel cup, Stainless steel cup Manufacturers, China Stainless steel cup Suppliers--yiwugift.com

The "discovery" of stainless steel occured in the 1900 to 1915 time period. However, as with many discoveries, it was the accumulated efforts of several individuals that actually began in 1821. That year a Frenchman named Berthier found that iron when alloyed with chromium was resistant to some acids. Others studied the effects of chromium in an iron matrix, but using a low percentage of chromium. To be stainless steel, the chromium content needs to be at least 10.5%. In 1872, Messrs. Woods and Clark applied for a British patent for what they identified as an acid and weather resistant alloy containing 30 to 35% chromium and 1.5 to 2% tungsten. Then, in 1875, another Frenchman named Brustlein recognized the importance of carbon levels in addition to chromium. Stainless steels need to have a very low level of carbon at 0.15%. While many others investigated the chromium/iron composition, the difficulty in obtaining the low carbon levels persisted for many years until low carbon ferrochrome became commercially available.
more

TEL：0086-579-85379696	Mobile phone	0086-15957972102	E-MAIL/MSN	sales@huapintrade.com	SKYPE(H)
FAX：0086-579-85364147	Mobile phone	0086-15957970152	E-MAIL/MSN	yiwugift@126.com	SKYPE(C)

Stainless-Steel-Insulated-Mug