Complaint
Chromium is used to make stainless steel, auto parts, tools, magnetic tapes and video tapes, etc. Chromium plating on metal can prevent rust, also known as Kadomi, which is sturdy and beautiful.
Chromium can be used to make stainless steel. The color of red and emerald also comes from chrome. As the most important metal in modern technology, chromium-nickel steels fused in different percentages are incredibly varied and varied.
The industrially used chromium ore is chromite, which belongs to spinel (MgO·Al2O3) and magnetite (FeO·Fe2O3), and its general chemical formula is (Fe, Mg)O·(Cr, Fe, Al2O3). Due to the mutual replacement of divalent elements (Mg2+, Fe2+, Zn2+) and trivalent elements (Al3+, Fe3+, Cr3+), various ores of different compositions can appear. In addition to the main components FeO and Cr2O3, it generally contains MgO, Al2O3 and other impurities of different components. The structure and composition of the ore have a significant impact on the use. For example, chrome spinel is more difficult to reduce than chromite (FeO Cr2O3); for chrome ore containing serpentine, if the volatile content is greater than 2%, the chrome refractory bricks made of it are used. When heated to 1000 ºC, it will burst due to the release of crystal water. The United States consumed 917,000 tons of chromite in 1978, and its uses are distributed as follows: 61% for metallurgy, 21% for chemical industry, and 18% for refractory materials. In 1981, the price of chrome ore in the London market: Turkey ore (48% Cr2O3, Cr/Fe=3) 130-135 US dollars / ton, South Africa (Azania), chrome ore (44% Cr2O3) 60-70 US dollars / ton.
1. who are we?
We are based in Hebei, China, start from 2014,sell to South America(20.00%),Central America(10.00%),Western Europe(10.00%),Eastern Europe(10.00%),North America(10.00%),Southern Europe(5.00%),Northern Europe(5.00%),Domestic Market(5.00%),Southeast Asia(5.00%),South Asia(5.00%),Mid East(5.00%),Oceania(5.00%),Eastern Asia(3.00%),Africa(2.00%). There are total about 101-200 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Rare earth oxide,Rare earth fluoride,Zirconia,Rare earth chloride,Calcium Series
4. why should you buy from us not from other suppliers?
HEBEI SUOYI NEW MATERIAL TECHNOLOGY CO.,LTD is a professional manufacture high purity inorganic salts .High purity rare earth series and other products etc. We have factory. We are sure we can supply the high quality products with competitve price.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union;
Language Spoken:English,Chinese
