ASME SB163 Monel 400 Nickel Alloy Heat Exchanger Tubes
Gnee Steel
ASME SB163 Monel 400 Nickel Alloy Heat Exchanger Tubes
ASME SB163 Monel 400 heat exchanger tubes are seamless tubes made from a nickel-copper alloy (UNS N04400) that offer excellent resistance to seawater and other aggressive media, maintaining strength and toughness in subzero and elevated temperatures. These tubes are designed for applications such as heat exchangers and condensers, particularly in marine environments, where excellent resistance to seawater corrosion and stress corrosion cracking is crucial.
Gnee Steel
What are the properties of Monel Alloy 400?
This alloy offers moderate strength, good weldability, good corrosion resistance, and toughness. It has a service temperature range up to 1000°F (538°C). Alloy 400 offers excellent corrosion resistance in fast-moving brackish or seawater environments where resistance to cavitation and corrosion is required.
Specification Of Monel 400 Heat Exchanger Tube
| Standard | ASTM B163, B704 / ASME SB163, SB704 |
| Item | Heat Exchanger Tube |
| Heat Exchanger Tube Sizes | 3/8″ OD to 3″ OD (Imperial and Metric sizes) |
| Heat Exchanger Tube Thickness | 0.7mm to 4mm |
| Heat Exchanger Tube Length | 3 MTRS, Custom Length |
| Test Certifcate | EN 10204 3.1 |
Monel 400 Heat Exchanger Tubes Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Monel 400 | 2.4360 | N04400 | NW 4400 | NA 13 | МНЖМц 28-2,5-1,5 | NU-30M | NiCu30Fe |
Chemical Composition Of Monel 400 Heat Exchanger Tube
| Grade | C | Mn | Si | S | Cu | Fe | Ni |
| Monel 400 | 0.30 max | 2.00 max | 0.50 max | 0.024 max | 28.00 – 34.00 | 2.50 max | 63.00 min |
Mechanical Properties Of Monel 400 Heat Exchanger Tubing
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Monel 400 | 8.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80,000 , MPa – 550 | Psi – 35,000 , MPa – 240 | 40 % |
Monel 400 Heat Exchanger Tube Manufacturing Process
Drawing/Floating Process
Floating or drawing is the process of pulling a metal bar, rod, or wire through a die to alter its surface finish, shape, dimensions, and/or mechanical properties. Through the tube drawing process, the outer diameter, inner diameter, and wall thickness of the tube are reduced. The advantage of stainless steel tube lies in its ability to maintain surface integrity.
Continuous Heat Exchanger Tube Mills
Continuous tube mills have revolutionized the production of heat exchanger tubes. Compared to traditional processes, these mills require no forging, welding, or filler metal. This technology allows heat exchanger tubes to be produced continuously, increasing productivity, reducing costs, and improving efficiency.
Continuous Casting
Continuous casting is a significant advancement in heat exchanger tube production. Molten metal is continuously poured into a water-cooled mold, where it solidifies into a continuous billet. This continuous casting technique ensures tubes with improved uniformity and enhanced mechanical properties.
Annealing
During the annealing process, the metal is heated above its recrystallization point and then cooled to room temperature. During the forming process, molecular bonds in metal are strengthened, making it stronger. Annealing restores the metal's ductility.
Immersed Tubing
Immersed tubing is a reducing drawing technique. In this process, the tube is drawn through a die without a mandrel. Using a mandrel does not guarantee a good internal surface quality. The angle of the die determines the integrity of the external surface. The die used produces a uniform surface. The tube can be significantly smaller than the original dimensions. Immersed tubing is an ideal choice when cost is a concern.
Inspection and Testing
Before shipping our products to consumers, we conduct an inspection process to verify their integrity.
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.
