EN 1.4529 stainless steel is a superaustenitic (highly alloyed) stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the solution annealed (AT) condition. 1.4529 is the EN numeric designation for this material. X1NiCrMoCuN25-20-7 is the EN chemical designation.

It has a moderately high tensile strength and a moderately high ductility among wrought superaustenitic stainless steels.

The graph bars on the material properties cards below compare EN 1.4529 stainless steel to: wrought superaustenitic stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Introduction
INCOLOY 926 DIN1.4529   alloys belong to the category of super-austenitic stainless steel alloys. Nickel, chromium and iron are the principal constituents of this alloy. By adding different additives this alloy can be made to resist different chemical reagents. Good strength and resistance to corrosion are characteristics of these alloys.
Additives such as molybdenum and nitrogen are added to the alloy in order to increase its resistance to pitting, crevice corrosion and thermal stability. The nickel and chromium content extend the corrosion resistance of this alloy over a wide range of environments like non-oxidizing acids, aqueous, caustic chlorides, halides and pulp-mill bleaches. This alloy is available in the form of bars, billets, sheets, round, plate, strips and wire.
This datasheet will look into the chemical composition, properties and applications of INCOLOY 25-6MO.

Chemical Composition
The chemical composition of INCOLOY alloy 25-6MO is given in the following table.ElementContent (%)

Other Designations
Some of the designations used to denote INCOLOY alloy 25-6MO are listed below:-
UNS N08926
Fabrication
Machinability
Machining characteristics of this INCOLOY alloy 25-6MO is similar to that of other austenitic alloys.
Machining of INCOLOY alloy 25-6MO should be done at a slightly lower speed when compared stainless steel using rigid tooling and optimum lubrication and cooling.
Welding
INCOLOY alloy 25-6MO can be welded by gas metal arc welding, gas tungsten arc welding, shielded arc welding, plasma arc welding and submerged metal arc welding. The filler metal and electrodes are usually made of INCONEL alloy.
Hot working
INCOLOY alloy 25-6MO can be hot worked at temperature ranges of 980-1150°C (1800-2100°F).
Cold Working
Cold rolling may be done on the alloy after annealing.
Annealing
INCOLOY alloy 25-6MO should be annealed at temperatures greater than 1175°C (2150°F).
Applications
The INCOLOY alloy 25-6MO is used in the following applications:
Chemical and food processing
Paper bleaching plants
Marine and offshore platform equipment
Air pollution control systems
Salt plant evaporators
Condenser tubes, service water pipes and feed water heaters.