Ferrite-austenite duplex [Super duplex] stainless steel seamless is our company’s main products，yearly output is above 1000 ton.   Nationally, our company has the most various kinds of Ferrite-austenite duplex stainless steels. We have the advanced Solid Solution    Device controlled by PLC. It can stably control the heat treatment temperature for all the products and guarantee the ideal duel phase   scale and distribution which can get good results from ASTM A923, ASTM G48 and ASTM E262 inspections.

Main Products Grade:

Specification range:

Out Diameter：3.175-325mm

Wall Thickness：0.5-20mm