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American Metal Market (AMM) is an online provider of industry news and metal pricing information for the U.S. steel, nonferrous and scrap markets. Products include a daily publication available electronically, live news on the publication's website, a hard-copy magazine and a series of weekly newsletters covering niche markets.
These prices are more an indication than an actual exchange price. Unlike the prices on an exchange, pricing providers tend to give a weekly or bi-weekly price. For each commodity they quote a range (low and high price) which reflect the buying and selling about 9-fold due to China's transition from light to heavy industry and its focus on ...
Cold-rolled 45 65 1.44 22 Hot-rolled and cold-rolled high-strength low-alloy columbium and/or vanadium steel sheet and strip A607 Class I Gr.45 45 60 1.33 Hot rolled (23) Cold rolled (22) Gr.50 50 65 1.30 Hot rolled (20) Cold rolled (20) Gr.55 55 70 1.27 Hot rolled (18) Cold rolled (18) Gr.60 60 75 1.25 Hot rolled (16) Cold rolled (16) Gr.65 65 80
Cold-rolled non-grain-oriented steel is often abbreviated to CRNGO. Grain-oriented electrical steel usually has a silicon level of 3% (Si:11Fe). It is processed in such a way that the optimal properties are developed in the rolling direction, due to a tight control (proposed by Norman P. Goss ) of the crystal orientation relative to the sheet.
Cold-rolled sheets and strips come in various conditions: full-hard, half-hard, quarter-hard, and skin-rolled. Full-hard rolling reduces the thickness by 50%, while the others involve less of a reduction. Cold rolled steel is then annealed to induce ductility in the cold rolled steel which is simply known as a Cold Rolled and Close Annealed.
The most common TRIP range of steels comprises 2 cold rolled grades in both uncoated and coated formats (TRIP 690 and TRIP 780) and one hot rolled grade (TRIP 780), identified by their minimum ultimate tensile strength expressed in MPa.
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In 2008, 2009, 2015 and 2016 output fell in the majority of steel-producing countries as a result of the global recession. In 2010 and 2017, it started to rise again. Crude steel production contracted in all regions in 2019 except in Asia and the Middle East. India is the 2nd leading producer of iron and steel industries. [citation needed]