Liga NIMONIC 81
Podemos produzir hastes redondas de aço inoxidável de liga NIMONIC 81, forjamento de liga NIMONIC 81, chapa, bobina e tira perfilada, aço deformado, aço plano, molde, fio de aço, temos todas as especificações. Com experiência de produção DuoNian, controle rigoroso da composição química da liga NIMONIC 81 e das propriedades mecânicas da liga NIMONIC 81. Desde fundição, forjamento, aço até processo de laminação a quente e a frio, tratamento térmico, etc., temos o controle de engenheiros profissionais. Possuímos equipamentos avançados de usinagem de precisão, de acordo com as necessidades dos usuários de usinagem. a fim de alcançar o mais satisfeito com os requisitos do usuário.
Especificação de produção do Nimonic® 81
- Barra de aço redonda: 1mm a 3500mm
- Aço quadrado: 1 mm a 4000 mm
- Placa de aço: 0,1 mm a 4000 mm
- Largura: 10 mm a 2500 mm
Lenth: Podemos fornecer qualquer lenth com base na exigência do cliente.
Forjamento: Eixos com flancos/tubos/tubos/lesmas/rosquinhas/cubos/outras formas
Tubulação: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer’s requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer’s requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer’s requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
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Nimonic 81(Nimonic® 81) Nickel Based Superalloy
NIMONIC® 81 and Nimonic 81 is a wrought nickel alloy hardened by controlled additions of titanium and aluminum, and designed to provide enhanced resistance to high temperature corrosion coupled with good high temperature strength. It has excellent hot corrosion resistance due to its high chromium content.
Elevated temperature strength characteristics are similar to those of Liga NIMONIC 80A. Melting, hot-working, cold-working and machining practices are also broadly similar to those for Liga NIMONIC 80A. Applications include components for gas turbines, piston engine exhaust valves, and heat-exchange plant subject to attack by deposits resulting from the combustion of impure fuels, particularly by alkali metal sulfates and chlorides.
Nimonic 81(NIMONIC® 81) is normally used in the solution- and precipitation-treated condition. This heat treatment is generally carried out in air. Material is usually supplied in the solution-treated condition and is aged by the customer as part of the fabrication process. NIMONIC alloy 81 can, however, be supplied to any requested heat-treatment condition. Details of the recommended heat treatments for various forms are given below, where the stated times represent the times at temperature. In establishing furnacing time due allowance must, of course, be made for furnace characteristics and charge weight.
Nimonic 81 Mechanical Properties:
| Material | Ultimate Tensile Strength (MPA) | 0.2 % Yield Strength (MPA) | % Alongamento |
|---|---|---|---|
| Nimonic 81 | 874 | 565 | 14 |
Nimonic® 81 Chemical Composition:
| Elemento | Contente (%) |
|---|---|
| Níquel, Ni | 63 |
| Cromo, Cr | ≤30 |
| Cobalt, Co | ≤2 |
| Titânio, Ti | 1.8 |
| Ferro, Fe | ≤1,0 |
| Alumínio, Al | 0.9 |
| Outros | Restante |
Nimonic® 81 Physical Properties:
| Propriedades | Métrica | Imperial |
|---|---|---|
| Densidade | 8.06 gm/cm3 | 0.291 lb/in3 |
Nimonic® 81 Heat Treatment:
Nimonic® 81 Hot working
NIMONIC alloy 81 can be hot worked at temperature ranges of 950-1160°C (1742-2120°F).
Nimonic® 81 Forging
NIMONIC alloy 81 can be hot forged at temperatures in the range of 1010-1176°C (1850-2150°F).
Nimonic® 81 Cold working
Cold working may be done on the alloy for hardening.
Nimonic® 81 Annealing
NIMONIC alloy 81 should be solution annealed at 1098°C (2010°F) for about 8 hours.
Nimonic® 81 Applications
- Heat exchange plant.
- Gas turbine engineering
- Piston engine exhaust valves
