Remark :

1. 'F' free machining state is applicable to the products in the molding process, for work hardening and heat treatment conditions have no special requirements, the mechanical properties of the products in this state are not specified

2. 'O' annealing state is applicable to complete annealing to obtain the lowest strength of the processed product

3.'H' work hardening state is suitable for products whose strength is increased by work hardening. After work hardening, the product may undergo (or may not undergo) additional heat treatment to reduce the strength

4.'W' Treatment state An unstable state, only applicable to the solid solution heat treatment after the natural aging of the alloy at room temperature, the state code only indicates that the product is in the natural aging stage

5.'T’ heat treatment state (different from F, O, H state) is applicable to the product after heat treatment, after (or without) work hardening to achieve stability

Wuxi Chengyue Metal Materials Co., Ltd. is located in Wuxi City, Jiangsu Province. It is a diversified private enterprise. Chengyue Metal and some well-known iron and steel enterprises have jointly established a number of steel production lines: 24 steel production lines with an annual output of 100,000 tons; 48 pipe production lines, with an annual production capacity of 800,000 tons; carbon steel inventory of more than 5,000 tons.

Now we can supply all kinds of aluminum materials, aluminum sheets, aluminum coils, aluminum bars, Aluminium materialss, aluminum round tubes, aluminum round plates, etc. Our products are very complete, creating a one-stop service for customers. The main markets are Southeast Asia, Middle East, Europe, South America, North America, Central Asia and East Asia. We always adhere to the service concept of "excellence, win-win cooperation", with the best steel quality, strict quality management, perfect after-sales service, reasonable price, good customer reputation, and the business philosophy of integrity.