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Duplex Stainless Steel butterfly valve

Duplex Stainless Steel                    
A182 F51 is the most widely used duplex (ferritic/austenitic) stainless steel grade. It finds applications due to both excellent corrosion resistance and high strength. The standard duplex S31803 composition has over the years been refined by many steel suppliers, and the resulting restricted composition range was endorsed as UNS A182 F51 in 1996. Duplex A182 F51 gives better guaranteed corrosion resistance, but for much of the Duplex S31803 currently produced also complies with Duplex A182 F51. A182 F51 is not generally suitable for use at temperatures above 300ºC as it suffers from precipitation of brittle micro constituents, nor below -50ºC because of its ductile-to-brittle-transition.
A995 4A: This material is usually used as Triple Offset Butterfly Valve Series 3000,Higt Performance Double Offset Butterfly Valve Series 5000 Body  and  Disc,it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.
A995 5A: This material is usually used as Triple Offset Butterfly Valve Series 3000,Higt Performance Double Offset Butterfly Valve Series 5000 Body  and  Disc,it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.
A995 6A: This material is usually used as Triple Offset Butterfly Valve Series 3000,Higt Performance Double Offset Butterfly Valve Series 5000 Body  and  Disc,it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.
A182 F51: This material is usually used as Triple Offset Butterfly Valve Series 3000 Champing Ring,  it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.
A182 F53: This material is usually used as Triple Offset Butterfly Valve Series 3000 Champing Ring,  it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.
A182 F55: This material is usually used as Triple Offset Butterfly Valve Series 3000 Champing Ring,  it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.
S31803: This material is usually used as Triple Offset Butterfly Valve Series 3000,Higt Performance Double Offset Butterfly Valve Series 5000 Stem, it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.
S32750: This material is usually used as Triple Offset Butterfly Valve Series 3000,Higt Performance Double Offset Butterfly Valve Series 5000 Stem, it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.
S32760: This material is usually used as Triple Offset Butterfly Valve Series 3000,Higt Performance Double Offset Butterfly Valve Series 5000 Stem, it is suitable for Oil,Artifice ,Chemical fertilizer,Sea water,etc.