Zeron Fastners
Nickel Alloys Monel 400 Slip-On Flanges
Nickel Alloys Monel 400 Slip-On Flanges (SO Flanges) are commonly used pipe flanges known for their ease of alignment and lower cost compared to Weld Neck flanges. Zeron Fasteners manufactures and supplies these components from the high-quality Monel 400 alloy (UNS N04400). The product is designed to slip over the pipe and is then secured by welding both inside and outside the flange bore. Monel 400 material is chosen for this application due to its superior corrosion resistance, particularly against seawater and chloride-bearing environments, where they are used in lower pressure classes. The primary application of these Monel 400 Slip-On Flanges is in less severe service conditions such as low-pressure cooling water lines, fire water systems, and process piping in the marine, chemical, and petrochemical industries.
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Nickel Alloys Monel 400 Slip-On Flanges Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 63.0 min |
| Copper (Cu) | 28.0–34.0 |
| Iron (Fe) | 2.5 max |
| Manganese (Mn) | 2.0 max |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.3 max |
| Sulfur (S) | 0.024 max |
Nickel Alloys Monel 400 Slip-On Flanges Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (min) | 550 MPa (80 ksi) |
| Yield Strength (0.2% Offset min) | 240 MPa (35 ksi) |
| Elongation in 4D (min) | 35% |
| Hardness (Brinell max) | 175 HB |