Difference Between Inconel 825 and 925

Inconel 825

Incoloy® 825 is also known as Nicrofer 4221, Superimphy 82 and Ferrochronin 825. Incoloy® 825 is a Nickel-Iron-Chromium alloy with additions of Molybdenum and Copper. It has excellent resistance to both reducing and oxidising acids, to stress-corrosion cracking and to localised pitting and crevice corrosion. It is also especially resistant to sulphuric and phosphoric acids.

INCOLOY 825 | ALLOY 825 | N08825 | 2.4858 | NICR21MO | NA 16 | XH38BT | ЭП703 | NCF 825 | NFE30C20DUM

Incoloy 825 alos known as Inconel 825. Its is an alloy formulated of Nickel, Chromium and Iron with extension of Molybdenum, Copper and Titanium. The alloy 825 invented to contribute exceptional resistance to many corrosive environments and reducing environments that acquire sulphuric acid and phosphoric acid. The nickel content in the alloy is acceptable for the resistance to chloride ion and stress corrosion cracking. The alloy 825 has exceptional anti- oxidation and non-oxidizing heat acid performance. The titanium content in the alloy sustains to resists intergranular attack after fabrication and pitting. The alloy 825 has good welability by all conventional mechanism.

Inconel 825 Composition

Grade Ni Cr Fe Mb Ti Cu Mn C S Al Si
Incoloy 825 38.0 – 46.0 19.5 – 23.5 22.0 min 2.5 – 3.5 0.6 – 1.2 1.5 – 3.0 1.0 max 0.05 max 0.03 max 0.2 max 0.5 max

Inconel 825 Equivalent Grades

STANDARD WERKSTOFF NR. UNS GOST AFNOR JIS BS EN OR
Incoloy 825 2.4858 N08825 ЭП703 NFE30C20DUM NCF 825 NA 16 NiCr21Mo XH38BT

Inconel 825 Melting Point, Density and Tensile Strength

Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
8.14 g/cm3 1400 °C (2550 °F) Psi – 80,000 , MPa – 550 Psi – 32,000 , MPa – 220 30 %

Inconel 825 Price

PRODUCT NAME PACK QTY PRICE
Alloy 825 0.5mm thick x 250mm x 250mm 1
£42.00
Alloy 825 0.5mm thick x 250mm x 250mm 2
£60.00
Alloy 825 0.5mm thick x 250mm x 250mm 3
£76.00
Alloy 825 0.5mm thick x 250mm x 250mm 4
£91.00
Alloy 825 0.5mm thick x 250mm x 250mm 5
£97.00
Alloy 825 0.5mm thick x 250mm x 250mm 6
£113.00
Alloy 825 0.5mm thick x 500mm x 500mm 1
£77.00
Alloy 825 0.5mm thick x 500mm x 500mm 2
£126.00
Alloy 825 0.5mm thick x 500mm x 500mm 3
£166.00
Alloy 825 0.5mm thick x 1000mm x 1000mm 1
£215.00

Incoloy 925

Incoloy 925 (UNS N09925) is an agehardenable nickel based alloy with additions of molybdenum, copper, titanium and aluminum. Alloy 925 offers corrosion resistance comparable with that of alloy 825, but with higher strength obtained by age hardening.

Inconel 925 Chemical Composition

Grade C Mn Si S Cu Fe Ni Cr Al Ti
925 0.03 max 1.00 max 0.05 max 0.03 max 1.50 – 3.00 22.00 min 42.00 – 46.00 19.55 – 22.50 0.01-0.05 max

Inconel 925 Melting Point, Density and Tensile Strength

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
925 8.14 g/cm3 1343°C MPa – 650 MPa – 300 30 %

Properties Metric Imperial
Density 8.05 g/cm³ 0.291 lb/in³
Melting point 1343°C 2450°F

Equivalent Grades for Incoloy 925

STANDARD WERKSTOFF NR. UNS JIS
Tube Incoloy 925 Equivalent N09925 NCF 925