ZZ fittings Duplex Steel Buttweld Fittings
Duplex steel buttweld fittings have better resistance to sea water than stainless steel grade 316 pipe fittings, and so as the mechanical properties.
We offer a complete range of butt weld elbow, tee, reducer, bend, cap, cross and stub end, which are available in various size, specification, thickness and shapes for meeting customer’s requirements.
Duplex Steel are known by it’s highly corrosion resistance properties with respect to the standard austenitic grades or high alloyed ferrite.
What is the Duplex Steel Grades?
ASTM A815 UNS S31803 Buttweld Fittings
People described 31803 as a duplex stainless steel with a microstructure of 50:50 austenite and ferrite. The steel combines good mechanical strength (typically up to over 480 MPa yield strength) and ductility with moderate to good corrosion resistance in a variety of environments.
