446 انبوب مقاوم للصدأ | مثل 446 سبائك الفولاذ المقاوم للصدأ الممتازة

الفولاذ المقاوم للصدأ 446 is a high chromium ferritic stainless steel commonly used for high-temperature applications where excellent resistance to the effect of scaling and تآكل is needed. فيما يلي بعض الميزات المحددة لـ 446 أنابيب الفولاذ المقاوم للصدأ:

Properties and Characteristics

1. درجة حرارة عالية مقاومة: 446 stainless steel has excellent resistance to scaling and oxidation up to 2000°F (1093° C). This makes it ideal for applications in furnaces, kilns, annealing and hardening boxes, and thermal cycling processes.
2. المقاومة للتآكل: This type of stainless steel has a high chromium content, providing strong resistance to various forms of corrosion including sulfidation and other hot corrosive gases.
3. قوة: 446 stainless steel maintains good strength and creep resistance at high temperatures, making it suitable for structural and pressure-containing applications at elevated temperatures.

تطبيقات

Due to its unique properties, 446 stainless steel pipes are used in a variety of industrial applications, بما في ذلك:

• Furnace parts
• Burner shields
• Muffles
• Annealing boxes
• Industrial heating pipes
• Electrical heating elements
• Thermal processing
• Food processing equipment

تصنيع

446 Stainless Steel pipes can be produced using various methods, including seamless, مقاومة كهربائية ملحومة (المتفجرات من مخلفات الحرب), الانصهار الكهربائي الملحومة (افو), and welded. The choice of manufacturing process depends on the intended application, required size, and pressure ratings.

Precautions

بينما 446 stainless steel provides high-temperature resistance, it’s not recommended for applications requiring exposure to temperatures exceeding 2000°F (1093° C) due to rapid grain growth which can result in reduced ductility. It’s also not recommended for usage in highly carburizing atmospheres.

الفولاذ المقاوم للصدأ 446 is a high chromium ferritic stainless steel, commonly used in high-temperature applications where resistance to the effect of scaling and corrosion is necessary. It also has good resistance to oxidation in various environments up to 1095 درجة مئوية.

Equivalent Grades

الفولاذ المقاوم للصدأ 446 is known by different names or equivalents depending on the standard:

• الولايات المتحدة: S44600
• مثل: 446
• EN/DIN: 1.4762 / X10CrAl24
• AFNOR: Z10CAS24

التركيبة الكيميائية

The typical chemical composition for Stainless Steel 446 على النحو التالي:

• T11 (ج): 0.20% ماكس
• المنغنيز (يغطي الأسود الملحوم وغير الملحوم والساخن): 1.50% ماكس
• السيليكون (الاشتراكية الدولية): 1.00% ماكس
• الفوسفور (ص): 0.040% ماكس
• الكبريت (S): 0.030% ماكس
• الكروم (الجمهورية التشيكية): 23.0-27.0%
• حديد (Fe): توازن

This high chromium content gives Stainless Steel 446 its excellent resistance to oxidation and corrosion.

الخصائص الميكانيكية

The mechanical properties of Stainless Steel 446 can also vary somewhat depending on the exact specification and heat treatment. ومع ذلك, typical properties would be:

• مقاومة الشد: 485 الآلام والكروب الذهنية دقيقة
• مقاومة الخضوع (0.2% الأوفست): 275 الآلام والكروب الذهنية دقيقة
• استطالة في 2″: 20% أنا
• صلابة (برينل): 217 BHN max

Different types of stainless steel 446 pipes have different applications and properties:

1. الفولاذ المقاوم للصدأ 446 سلس أنابيب: Seamless pipes are manufactured from a solid round steel billet which is heated and pushed over a form until the steel is shaped into a hollow tube. Seamless pipes are known for their increased ability to withstand pressure. They’re often used in high-pressure applications, such as oil and gas exploration.
2. الفولاذ المقاوم للصدأ 446 المتفجرات من مخلفات الحرب (مقاومة كهربائية ملحومة) أنابيب: ERW pipes are made by rolling a plate and welding the seam, resulting in a pipe with a longitudinal seam. تُستخدم أنابيب المتفجرات من مخلفات الحرب عادةً في تطبيقات الضغط المنخفض إلى المتوسط.
3. الفولاذ المقاوم للصدأ 446 افو (الانصهار الكهربائي الملحومة) أنابيب: EFW pipes are similar to ERW pipes, but the welding process involves an electric arc between the consumable electrode and the pipe material. The heat generated from the arc forms a molten metal that cools and solidifies to form the joint. EFW pipes are often used in larger diameter applications where high-quality welds are required.
4. الفولاذ المقاوم للصدأ 446 الأنابيب الملحومة: Welded pipes are made by forming a flat piece of steel into a cylindrical shape and then welding the edges together. Welded pipes are typically cheaper than seamless pipes and are used in structural applications and in larger diameter pipe for transportation of water, الغاز, والنفط.
5. الفولاذ المقاوم للصدأ 446 أنابيب مستطيلة: These pipes have a rectangular cross-section and are used in structural applications, or applications where a round pipe wouldn’t be as efficient. Rectangular pipes can also be used for aesthetic purposes in architectural designs.

بصورة شاملة, the choice of pipe type depends on the specific requirements of the project, including the pressure the pipe needs to withstand, the environment in which it will be used, and the budget available.