Nickel Alloy Nimonic 90 UNS N09901
HY N90 Material grades and equivalents
Nimonic 90/GB GH90/ UNS N07090 / BS Nimonic90/ W. Nr. 2.4632
HY N90 characteristics and application fields of summary:
This alloy is aging strengthen ni-based deformation high temperature ally, with a high amount of cobalt and many kinds of strengthening element, this alloy in 815 ~ 870 °C have high tensile strength and contravariance ability, good oxidation resistance and corrosion resistance, cold and heat alternately repeatedly in under the action of a higher fatigue strength and good formability and weldability. Used for turbine engine turbine dish, leaf, high temperature fasteners, card hoop, seals and elastic components etc.
HY N90 chemical ingredients: (GB/T14992-2005)
| Alloy | % | Ni | Cr | Fe | Zr | B | Co | C | Mn | Si | S | Cu | Al | Ti |
| HY N90 | Min | Bal | 18.0 | 15.0 | 1.0 | 2.0 | ||||||||
| Max | 21.0 | 1.5 | 0.15 | 0.02 | 21.0 | 0.13 | 0.4 | 0.8 | 0.015 | 0.2 | 2.0 | 3.0 |
HY N90 physical ability:
| density g/cm3 |
M.point °C |
Heat transfer Rate λ/(W/m•°C) |
specific heat capacity J/kg•°C |
modulus of elasticityGPa | shear elasticityGPa | R μΩ•m |
coefficient of linear expansion a/10-6°C-1 |
|
| 8.2 | 1400 | 21.76(100°C) | 225 | 12.7(20~100°C) |
HY N90 force ablity:
| Heat treatment | Tensile Strength σb/MPa | Yield Strength σp0.2/MPa | Elongationσ5 /% | HB HBS |
| Solution treatment | 820 | 590 | 8 |
Nimonic90 process performance and requirements:
1, the alloy in forging easily produce inside crack, allow hammer blow, don’t allow low temperature chamfering. Ingot outfit furnace temperature is not higher than 700 °C, 1150 °C ± final heating temperature 10 °C, open forging not below 1060 °C temperature, and forging temperature not less than 950 °C.
2, the size of the average grain degrees of alloy forgings and deformation degree, eventually forging is closely related to the temperature.
3, alloy in solid solution state can be inert gas protection electric arc welding and tungsten very flash butt weld.
Specification：
|
bar/wire |
BS HR2 Nimonic 90 bars, billet, forgings；BS HR501 Nimonic 90 cold drawn wire for springs；BS HR502 Nimonic 90 cold drawn and solution； treated wire for springs；BS HR503 Nimonic 90 wire for thread inserts；AMS 5829；AECMA PrEN 2295；AECMA PrEN 2296；AECMA PrEN 2297；AECMA PrEN 2400；AECMA PrEN 2401；AECMA PrEN 2669；AECMA PrEN 2670；MSRR 7016；MSRR 7137；Siemens DL 1641-1；ABB Stal 63 73 01 |
|
sheet/plate/strip |
BS HR202 Nimonic 90 sheet and strip；MSRR 7087；AECMA PrEN 2298；Siemens TLV8525 2100；Siemens TLV8525 31001 |
|
Tube |
BS HR 402；AECMA PrEN 2299 |
| Regular shape for all kinds of alloys | |||
| Form | Specification | Supply Form | Others |
| Sheet | Thickness：0.40-4.75mm，General Width：1000、1219、1500mm | Whole Coil or piece of it | Cold Annealed，Surface 2B、2E |
| Plate | Thickness：4.76-60mm，Width：1500、2000、2500mm，Length：3000、6000、8000、8500mm（Under 10mm plate can be coiled） | Whole Coil or piece of it | Single hot rolling，Solid solution annealed state，Surface 1D |
| Belt | Thickness：0.10-3.0mm，Width：50-500mm | Whole Coil or Specified size | Cold Annealed，Surface 2B、2E |
| Bar & Rod | Rolled barΦ5-45mm，Length≤1500mm | Polished Bar（circle、Square） | Solution annealing,descaling |
| Forged barΦ26-245mm，Length≤4000mm | |||
| Weld tube | Outer diameterΦ4.76-135mm，Wall Thickness0.25-4.00mm，Length：≤35000 mm | Base on your requirement | |
| Seamless Tube | Outer diameterΦ3-114mm，Wall Thickness0.2-4.5mm | Base on your requirement | |
| Wire | Outer diameterΦ0.1-13mm | Base on your requirement | Ni & Ni alloy, Ti & Ti alloy |
| Forged piece | discs,rings,squares,blocks,slabs | Base on your requirement | Steel, Alloy |
| Flangs | All kinds of Flangs | Base on your requirement | Steel, Alloy |
| Welding Material | Coil wire Φ0.025mm-1.6mm | Base on your requirement | Certificate of Origin：America, Sweden, Britain, Germany, Austria, Italy, France. |
| Straight WireΦ1.6mm-4.0mm | |||
| Welding rodΦ1.2mm-4.0mm | |||
| Tube | Elbow, three links, four links, different diameter size | Base on your requirement | Ni & Ni alloy, Ti & Ti alloy |
| Explosive bonded laminate | Raw Sheet Thickness≥2mm | Base on your requirement | Ni & Ni alloy, Ti & Ti alloy |
