Лист Uns S32750

Лист Uns S32750

UNS S32750 sheet is a super duplex stainless steel material with outstanding strength and excellent corrosion resistance. Его высокое содержание хрома, молибден, and nitrogen content make it highly resistant to chloride and seawater corrosion.

Because of its superior mechanical and corrosion-resistant properties, UNS S32750 is widely used in oil and gas, marine engineering, химическая обработка, and high-performance industrial systems where standard stainless steels are not sufficient.

Описание

UNS S32750 sheet is a super duplex stainless steel material with very high strength and excellent corrosion resistance. It is commonly known as 2507 супердуплекс из нержавеющей стали and is widely used in harsh industrial environments where ordinary stainless steels cannot provide sufficient performance.

The microstructure of UNS S32750 combines:

Austenitic stainless steel characteristics
Ferritic stainless steel characteristics

This dual-phase structure gives the material both high mechanical strength and strong corrosion resistance.

Chemical Composition of UNS S32750

UNS S32750 contains high levels of chromium, молибден, и азот, which significantly improve corrosion resistance.

Элемент	Содержание (%)	Функция
Хром (Кр)	24.0 – 26.0	Improves corrosion resistance
Никель (В)	6.0 – 8.0	Enhances toughness and stability
Молибден (Мо)	3.0 – 5.0	Improves pitting resistance
Азот (Н)	0.24 – 0.32	Increases strength and corrosion resistance
Углерод (С)	≤ 0.03	Improves weldability
Железо (Фе)	Баланс	Base metal

Mechanical Properties of UNS S32750 Sheet

UNS S32750 has much higher strength than standard stainless steel grades such as 304 или 316.

Свойство	Производительность
Предел прочности	Очень высокий
Предел текучести	Approximately twice that of 316 нержавеющая сталь
Твердость	Высокий
Impact toughness	Хороший
Fatigue resistance	Отличный

The material is especially suitable for high-pressure and heavy-load environments.

Corrosion Resistance Performance

One of the main advantages of UNS S32750 is its outstanding corrosion resistance.

Excellent Resistance To:

Chloride corrosion
Pitting corrosion
Crevice corrosion
Stress corrosion cracking
Seawater corrosion

This makes it suitable for marine and chemical industries.

Key Features of UNS S32750 Sheet

1. Высокая прочность

Super duplex structure provides:

High load-bearing capability
Reduced material thickness possibility
Better structural efficiency

2. Отличная коррозионная стойкость

The high chromium and molybdenum content significantly improves corrosion resistance in aggressive environments.

3. Хорошая свариваемость

Although it is a high-alloy material, UNS S32750 can still be welded using appropriate procedures.

4. Long Service Life

The material performs well in:

Humid environments
Chemical exposure
Marine conditions
High-pressure systems

Common Applications of UNS S32750 Sheet

UNS S32750 sheets are widely used in industries requiring high strength and corrosion resistance.

Нефтяная и газовая промышленность

Морские платформы
Subsea equipment
Теплообменники
Сосуды под давлением
Pipeline systems

Химическая перерабатывающая промышленность

Резервуары для хранения химикатов
Технологическое оборудование
Corrosion-resistant reactors
Промышленные трубопроводные системы

Морская инженерия

Seawater desalination equipment
Shipbuilding components
Marine structural systems
Saltwater handling equipment

Energy Industry

Power plant systems
Flue gas desulfurization equipment
High-pressure industrial systems

Structural and Industrial Applications

Heavy-duty structural panels
High-strength industrial components
Aggressive environment fabrication systems

Comparison With 316 Нержавеющая сталь

Элемент	США S32750	316 Нержавеющая сталь
Сила	Очень высокий	Середина
Коррозионная стойкость	Отличный	Хороший
Chloride resistance	Отличный	Умеренный
Расходы	Выше	Ниже
Marine performance	Начальство	Стандартный