Incoloy 926 (UNS N08926/ W.Nr. 1.4529)

Incoloy 926 (UNS N08926 / W.Nr. 1.4529) is an austenitic stainless steel alloy which has a similar chemical composition with 904L alloy. Its nitrogen content is 0.2%, molybdenum content is 6.5%. Molybdenum and nitrogen content significantly increased the resistance of pitting and crevice corrosion in the halide media. Meantime, nickel and nitrogen not only ensures the stability of metallographical, but also reduce separating intergranular trend in the thermal process or welding process better than the nitrogen content of nickel alloy.

Equivalent Grades

Trademark	GB	GOST	ASTM	UNS	DIN	W.Nr.	NF	BS	JIS	SS
Incoloy 926 NAS 255NM Cronifer 1925hMo	–	–	Incoloy 926	N08926	25-6Mo	1.4529	X1NiCrMoCu	X1NiCrMoCu	–	–

Chemical Composition, %

Alloy

Incoloy 926

≤0.02

≤0.50

≤2.00

≤0.03

≤0.01

19.0-21.0

24.0-26.0

6.0-7.0

0.6-1.2

0.5-1.5

0.15-0.25

Bal

Typical Physical and Mechanical Properties (RT, Solution annealed)

Density, g/cm3	Melting Point, ℃	Tensile Strength, MPa	Yield Strength, MPa	ELongation, %	Hardness, HB
8.1	1320-1390	650	295	35	–

Available Products and Specifications

Rod, Bar, Wire and Forgings	ASTM B408/ASME SB408, ASTM B564/ASME SB564, ISO 9723/9724/9725
Plate, Sheet and Strip	ASTM A240/A480/B409/B906/ASME SA240/SA480/SB409/SB906, ISO 6208
Pipe and Tube	ASTM B163/ASME SB163, ASTM B407/B829/ASME SB407/SB829, ASTM B514/B775/ASME SB514/SB775, ASTM B515/B751/ASME SB515/SB751, ISO 6207
Welding Product	–
Others	ASTM B366/ASME SB366(Fittings)

Features

It has high resistance to pitting and crevice corrosion when in Halide and H2S contained acid media
In practice, effective in resistance of chloride stress corrosion cracking
A variety of corrosion have good corrosion resistance capability in the normal oxidation and restore environment
Upgrade mechanical properties than Cronifer 1925 LC-Alloy 904 L
Alloys has Improved the stability of metallurgical compared to a range of 18% of the nickel content alloys
With a certification of applied in manufacturing-related pressure vessel (VdTUV-196～400℃ and ASME)

Applications

Fire system, water purification system, marine engineering and hydraulic piping perfusion system
The pipeline, joint, air systems in the acidic gas production
Evaporator, the heat exchanger, filter, mixer, etc. in the phosphate production
Power plants condensation and pipe system in the use of sewage water to cool water
The use of acidic organic catalyst chlorinated derivatives production
The production of cellulose pulp bleacher
Polished bar in the orrosive oil wells
Hose system in the ocean engineering
Flue gas desulphurization system components
Sulfuric acid condensation and separation system
Crystalline salt concentration and the evaporator
Transport of corrosive chemicals containers
Reverse osmosis desalination plant