Tài sản	Giá trị
Độ bền kéo	480 – 550 MPa
Sức mạnh năng suất (0.2%)	170 – 240 MPa
Độ giãn dài	35 – 40%
độ cứng	65 – 90 HRB
Tỉ trọng	8.80 g/cm³
điểm nóng chảy	1300 – 1350°C
Operating Temperature Range	–200°C to 550°C

These mechanical properties enable SASAFLANGE Monel 400 phụ kiện to withstand high pressure, mechanical shock, and thermal expansion without cracking or deforming — characteristics essential for high-performance pipelines and industrial systems.

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Strength Retention at High and Low Temperatures

Monel 400 maintains its toughness even at nhiệt độ đông lạnh, making it ideal for liquefied gas systems, while also resisting softening at elevated temperatures.

• At High Temperatures (up to 550°C): The alloy retains structural stability and resists oxidation and scaling.

• At Low Temperatures (below –100°C): It maintains high ductility and impact resistance without becoming brittle.

These attributes are critical for industries such as offshore oil drilling, cryogenic storage, and refinery operations, where temperature extremes are common.

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Stress and Fatigue Resistance

In dynamic applications where pipelines and fittings are subjected to vibration, đạp xe áp lực, or flow turbulence, Monel 400 provides superior chống mỏi compared to stainless steel or copper-nickel alloys.

Its high yield strength ensures ổn định kích thước, while the alloy’s elasticity minimizes microcrack formation. Kết quả là, SASAFLANGE Monel 400 phụ kiện are widely used in trao đổi nhiệt, bình ngưng, and seawater pumps, where long-term structural reliability is critical.

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Corrosion Resistance in Various Environments

1. Seawater and Marine Environments:

• Monel 400 forms a protective oxide layer that prevents pitting and crevice corrosion.

• Remains resistant even in fast-flowing seawater Và saltwater spray zones.

• Outperforms stainless steel, which suffers from chloride stress corrosion cracking.

2. Acidic Solutions:

• Outstanding resistance to axit flohydric (HF), even at boiling temperatures.

• Thực hiện tốt trong dilute sulfuric and hydrochloric acids, unlike carbon or stainless steels.

3. Alkaline Environments:

• Khả năng chống chịu tuyệt vời xút, natri hydroxit, and ammonia.

• Ideal for use in chemical process systems handling both acidic and basic media.

4. Neutral and Reducing Media:

• Monel 400 vẫn ổn định ở neutral chloride solutions, nước muối, and organic compounds.

Những đặc tính này làm SASAFLANGE Monel 400 phụ kiện suitable for critical service applications in đường ống biển, nhà máy khử muối, and acid recovery systems.

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Common Applications of Monel 400 phụ kiện

Because of their unique balance of corrosion resistance and mechanical strength, Monel 400 phụ kiện are utilized in a variety of demanding industries:

• Kỹ thuật hàng hải: Seawater piping systems, bình ngưng, and pump housings.

• Dầu khí: Sour gas service, offshore pipelines, and chemical injection systems.

• Xử lý hóa chất: HF acid alkylation units, evaporators, và trao đổi nhiệt.

• Phát điện: Cooling circuits, dòng hơi nước, và bình ngưng.

• Nhà máy khử muối: Brine discharge and seawater intake systems.

SASA KÉO DÀI designs and manufactures Monel 400 khuỷu tay, áo thun, bộ giảm tốc, khớp nối, and flanges that meet ANSI, DIN, JIS, and MSS SP-43 tiêu chuẩn, đảm bảo khả năng tương thích với các hệ thống đường ống toàn cầu.

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Fabrication and Welding Characteristics

Despite its high strength, Monel 400 remains highly workable and weldable.

Fabrication Features:

• Can be hot-worked at 900–1150°C and cold-worked for precision forming.

• Excellent weldability with TIG, TÔI, or SMAW processes.

• No post-weld heat treatment is required — welded joints retain full corrosion resistance.

This ease of fabrication allows SASA KÉO DÀI to deliver customized fitting designs and dimensions, meeting the specific needs of offshore, nhà máy lọc dầu, and chemical customers.

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Kiểm soát và kiểm tra chất lượng

Mỗi SASAFLANGE Monel 400 Fitting undergoes a series of stringent tests to ensure chemical and mechanical compliance:

1. Phân tích hóa học (ASTM E1473):

• Confirms alloy composition and element ratios.

2. Mechanical Testing (ASTM E8 / E18):

• Measures tensile strength, độ cứng, and elongation.

3. Kiểm tra không phá hủy (NDT):

• siêu âm, radiographic, and dye penetrant inspections for defects.

4. Kiểm tra thủy tĩnh:

• Verifies pressure integrity and leak-free performance.

5. Dimensional Accuracy Checks:

• Ensures compliance with ASME B16.9 / B16.11 Và EN 10204 3.1/3.2 chứng nhận.

These strict quality protocols ensure that every SASAFLANGE Monel 400 Fitting delivers consistent performance, độ tin cậy, và tuổi thọ dài.

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