Монель 400

Monel 400 Nickel Copper Alloy

Monel® 400

UNS N04400 | W.Nr. 2.4360 | Alloy 400

Monel 400 is a solid-solution binary alloy of nickel (approx. 63%) and copper (approx. 30%) that offers an excellent combination of high strength and toughness over a wide temperature range, and superior resistance to many corrosive environments.

  • Общие формы: Pipe, Tube, Plate, Sheet, Round Bar, Wire, Forgings.
  • Ключевая особенность: Exceptional resistance to sea water and steam at high temperatures.
  • Chemical Resistance: Resistant to hydrochloric and hydrofluoric acids when de-aerated.
  • Свариваемость: Good weldability by standard processes.
Why Choose Monel 400?

Monel 400 is defined by its unique nickel-copper composition, which provides greater corrosion resistance than commercially pure nickel, particularly in reducing environments. Its versatility makes it a standard material in marine and chemical industries.

Marine Environment

The industry standard for marine applications due to its extremely low corrosion rate in flowing seawater and resistance to bio-fouling.

Фтористоводородная кислота

One of the few alloys that can withstand hydrofluoric acid in all concentrations up to the boiling point, making it vital for alkylation units.

High Strength & Toughness

Maintains excellent mechanical properties from sub-zero temperatures up to approx. 1000°F (538°C). It does not undergo a ductile-to-brittle transition.

Химический состав (%)
Элемент Содержание (%)
Никель (Ni) 63,0 мин
Медь (Cu) 28.0 - 34.0
Железо (Fe) 2,5 макс.
Марганец (Mn) 2.0 макс.
Углерод (C) 0,3 макс.
Кремний (Si) 0,5 макс.
Сера (S) 0.024 max
Стандартные спецификации
Форма продукта Стандарты ASTM / ASME
Трубы и трубки (бесшовные) ASTM B165, ASME SB165
Труба (сварная) ASTM B725, ASME SB725
Пластина, лист, полоса ASTM B127, ASME SB127
Бар и стержень ASTM B164, ASME SB164
Фитинги ASTM B366, ASME SB366
Поковки ASTM B564, ASME SB564
Механические свойства (отожженные типичные)
Недвижимость Типичные значения (комнатная температура)
Прочность на разрыв 75 - 90 ksi (517 - 620 MPa)
Предел текучести (смещение 0,2%) 25 - 50 ksi (172 - 345 MPa)
Удлинение 35 - 60 %
Твердость (Бринелль) 110 - 150 HB

*Note: Properties can vary significantly based on the product form and temper (e.g., cold-drawn vs. annealed).

Типовые применения

Морская техника

Propeller and pump shafts, sea water valves, strainer baskets, and fishing trawler parts.

Химическая обработка

Equipment for handling hydrofluoric acid, sulfuric acid, and alkalis; salt production equipment.

Oil & Gas Well

Pump shafts and impellers, drill collars, and instruments used in corrosive well environments.

Электронные компоненты

Used in electrical and electronic applications due to its good electrical conductivity and non-magnetic properties (at room temp).

Need Monel 400 for Your Project?

We stock a wide range of Monel 400 in pipe, sheet, and bar forms. Contact our sales team for availability and mill test reports (MTR).

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