T1 and T2 aluminized steel Part I
What is the difference between Type 1 (T1) and Type 2 (T2) of aluminized steel in the American standard ASTM A463? Can T1 replace T2? Today, MESCO STEEL will exclusively help you interpret it!
First of all, let us take a look at the past and present of the continuous hot dip process: In 1930-1931, the Sendzimir method was born, and the emergence of the continuous hot dip galvanizing process marked the official beginning of the era of large-scale industrial production of coated steel.
From 1939 to 1940, based on the Sendzimir method, the American Armco Company developed aluminized steel plates. In the following 50 years, aluminized steel plates were not widely used because of their poor processing performance, that is, the contact between molten aluminum and steel base quickly forms Fe-AI metal compounds. This alloy is hard and brittle, which will seriously affect the plastic processing formability of the aluminized steel plate!
In 1999, ArcelorMittal successfully developed aluminum-silicon coated steel plates, which solved the above-mentioned defects by adding a certain proportion of silicon to the coating to further improve the processability, heat resistance and corrosion resistance of the steel plates.
In 2006, the ASTM A463 standard appeared, and Type 1 of aluminum-silicon alloy coating and Type 2 of pure aluminum coating also officially appeared.
T1 coating is usually 80-150 grams/square meter, and the silicon content is in the range of 5-11%. The lowest value of pure aluminum coating T2 in this standard is 200 grams/square meter!
Currently, there are about 12 aluminized steel plate manufacturers in the world, and most of them produce T1 standards. The latest survey found that there may not be more than 2 companies, or even only one, that can produce T2 standards...
Moreover, because the order quantity is small, it is very difficult to organize production, the delivery time is very unstable, and the price is seriously beyond the market's ability to accept it. ! This has led to more and more projects replacing T2 with T1.
Follow MESCO STEEL, learn about steel products and China's steel industry with us!
MESCO STEEL is a professional steel products supplier.
Specialized in #Hot Rolled Steel, #Cold Rolled Steel, #Wear Resistant Steel, #Zn-Al-Mg Coated Steel, #Stainless Steel, #Aluminized Steel, #Powder Coated Steel, #Enamelled Pressed Steel, #PVC Laminated Steel, #Silicon Steel, #Tin Plate, #Aluminum Coil, #Steel structure, #Galvanized Steel, #Galvalume Steel, #PPGI, and #PPGL products.
The Largest Private Steel Supplier In Northeast China.
16 years, 78 countries, 480+ clients domestically and worldwide! No Stain In Reputation.
Wind Vane Company of price in mainstream media.
Council member enterprise of Chinese Steel Export Union.
Council member enterprise of Chinese Northeast Steel Structure Union.
Chinese top 20 coating steel supplier in 2019.
Chinese top 100 steel steel supplier in 2020.
Chinese top 30 coating steel supplier in 2020.