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Material Grade

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Zhongrui raw materials used in productions  are from the most reliable steel mills.
 
Austenitic stainless steels  
This type of grades covers the biggest part of Stainless Steel grades. What defines this grades is a chromnium percentaje over 15%  They are resistant to different types of corrosion caused by chemical influences. One specific type of Austenitic Stainless Steel grades are the Heatresistant stainless steel grades  which maintain their mechanical properties when exposed to elevated temperatures. 

Duplex-Superduplex 
Austenitic-ferritic stainless steels(duplex steels) are characterised by comparatively lower presence of nickel compared to standard austenitic grades. Their main feature are the mechanical qualities, particularly their high stress corrosion cracking resistance. They are especially suitable for off shore applications and in the chemical industry. 

 
Austenitic Stainless Steel    
UNS ASTM EN no.
S30400/S30403 304/304L 1.4301/1.4307
S31603 316L 1.4404
S31635 316Ti 1.4571
S32100 321 1.4541
S34700 347 1.4550
S31008 310S 1.4845
N08904 904L 1.4539
     
Duplex& Super Duplex    
UNS ASTM EN no.
S32750  --- 1.4410
S31803  --- 1.4462
S32205  --- 1.4462