1.Chemical composition

2.Stress Relief Annealing

 To relieve stress and work hardening of parts at intermediate stages

of fabrication. It is intended particularly for drawing, forming and

spinning operations.

 1.   Wash and degrease parts.

 2.   Anneal in atmosphere controlled furnace. Atmosphere may be

      wet or dry hydrogen, dissociated ammonia, cracked gas or similar

      neutral atmosphere.

 3.   Annealing temperature is not critical; however, high temperatures

      (greater than 900 oC) or extended time periods (longer than 60 minutes)

       should be avoided because such treatments promote grain growth.

       Typical cycle: 850 oC for 30 minutes.

4.   Parts should be held at temperature for the indicated time and then furnace

      cooled to less than 175 oC to avoid oxidation and/or thermal shock (which may

       cause distortion).

3.Heat Treatment  

Because of its effect on the actual structure of the material, there is a distinction made

between heat treating the material to facilitate fabrication and heat treating the material to

ensure optimum conditions for glass sealing, plating or brazing. 

1:  Focus on stainless steel industry

2:  Products are all made of steel plate(Tisco,Lisco,Baosteel Posco)

3:  No quality complaints

4:  Perfect one-stop purchase

5:  have more than 2000 tons stainless steel in stock

6:  Can order as customer requirement

7:  Serves many country customers

Stainless steels of various kinds are used in thousands of applications. The following gives a flavour of the full range: