303 (UNS S30300) is a non-magnetic, austenitic, free-machining stainless steel that is a modification of the basic 10% chromium -8% nickel 
stainless steel specially designed to exhibit improved machinability while maintaining good mechanical and corrosion-resistant properties. 

Chemical Composition of 303 stainless steel 

Mechanical Properties of 303 stainless steel bars

303 stainless steel equivalent standard 

303 stainless steel Corrosion Resistance
Alloy 303 is resistant to mildly corrosive environments. However, the alloy's corrosion resistance is inferior to 304 in most applications. 
Its corrosion resistance is superior to 416, another free-machining grade, but is somewhat inferior to other 400 series stainless steels which do not contain higher sulfur levels.
In order to obtain optimal corrosion resistance, it is recommended that Alloy 303 be chemically treated to remove sulfides from the final surfaces.

Heat Resistance of Stainless Steel Alloy 303 
Grade 303 stainless steel has good resistance to oxidation when intermittently exposed to temperature up to 760°C temperatures. 
It also has good oxidation resistance in continuous service to 870°C. This, however, is not recommended as 303 is sensitive to carbide precipitation with continuous use at 425-860°C.

303 stainless steel bars Welding
Alloy 303 is not recommended for applications requiring welding. If it is necessary to weld the alloy, AWS E312 filler metal may be considered.

303 stainless steel Heat Treatment
Annealing – Heat to a minimum temperature of 1900oF (1038oC) and water quench or rapid cool by other means. 
Hardening – Alloy 303 cannot be hardened by thermal treatment, it can only be hardened by cold working

Anyang Jin Chao yang Materials Co., Ltd has been in the steel selling and exporting market for many years.

Our rich experiences makes us not only providing the exacty product you need but also providing kinds of solutions solving the problems you may confronting in your work or projects.

Mian Products: Ship plate, boiler and pressure vessel steel, corten steel.HR,CR coil/sheet/plate

Events of Jin Chao Yang:

1. Anyang Jin Chao Yang Materials Co., Ltd was established in 2009.

2. With more than 10staff, Anyang Jin Chao Yang Materials Co., Ltd began to expand the Indian market in 2010 and made a sales volume of 30,000tons.

3. With more than 20staff, Anyang Jin Chao Yang Materials Co., Ltd moved to a new office in 2011.At the same year, the markets in Pakistan, mainly the pressure Vessel Steel plate, in Russia and in Africa,were developed with a sales volume of 55,000tons

4.In 2012, the sales volume were more than 70,000tons

5. The domestic trade company, Henan Youjin Commerce Co., Ltd, under Anyang Jin Chao Yang Materials Co., Ltd, made a sales volume of 9,000tons in 2012 and 27,000tons in 2013.

6. In 2013, the headquarter, Henan Runke Imp.&Exp. Trading Co., Ltd, was established.

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