After decades of research and development, super duplex stainless steel has won a place in the chemical, petroleum, paper, energy, marine, military and other industrial fields, and its application range is expanding, in many key areas.
Since the duplex stainless steel has a two-phase structure, the duplex stainless steel can combine the properties of ferritic stainless steel and austenitic stainless steel by properly controlling the chemical composition and the heat treatment process, that is, the good toughness and weldability of the austenitic stainless steel. Combined with higher strength and chloride stress corrosion resistance of ferritic stainless steel. It is these superior properties that make duplex stainless steel develop very rapidly as a weldable structural material.
* PREN = % Cr + 3.3 x %Mo + 16 x % N, > 40
What kinds of physical and chemical testing you can provide?
The physical and chemical testing we provide include:
chemical composition testing
physical property testing：hardness test，Tensile performance testing, room temperature impact testing, low temperature impact test
NDT: PT, MT, UT &RT
Looking forward to cooperate with customers all over the world!