The K-500 alloy is made by adding aluminum and titanium to the MONEL nickel-copper composition and has a face-centered cubic structure. Under aging hardening, the whole matrix forms a sub-microscopic γ’Ni3Al phase.
K500 alloy has excellent corrosion resistance in a wide range of natural and chemical environments, excellent resistance to chloride stress corrosion cracking, and very high strength and hardness.
After aging hardening, the mechanical properties of K500 alloy are about 2 ~ 3 times that of nickel-copper alloy (Monel 400), with high tensile properties up to 650℃, good corrosion fatigue resistance, and low magnetism, up to -135℃ without magnetism.
In general, the corrosion resistance of K500 alloy is similar to that of 400 alloys. Excellent water resistance is expressed in a wide range of media, from pure water to mineral acids, salts, and alkalis. K500 alloy is almost not affected by chloride corrosion crack. Under the aging condition, the oxygenated hydrofluoric acid vapor is prone to stress corrosion cracking near the yield strength. High-speed seawater and Marine atmosphere exhibit good corrosion resistance, but pitting may occur in slow-moving or stagnant seawater. Nicorros Al also exhibits good corrosion resistance in sour gas environments.
| Product Name | Executive Standard | Dimension | Steel Code / Steel Grade |
|---|---|---|---|
| Industrial Pipes | ASTM A312, A358, A778 | OD: 1/4″~40″ WT: SCH5S~SCH80S | TP304, TP304L, TP316L, SUS304TP |
| Tubes for Boiler and Heat-Exchanger, General Service Tubing | ASTM A249, A269, JIS G3463 | OD: 15.9~139.8mm WT: 1.6~5.0mm | TP304, TP304L, TP316L, SUS304TB |
| Mechanical and Structural Tubes | ASTM A554, JIS G3446 | OD: 7.9~152.4mm WT: 0.5~6.5mm | MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD SUS304 |
| Square Tubes | ASTM A554 | OD: 12.7×12.7~150x150mm WT: 0.7~6.5mm | MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD |
| Rectangular Tubes | ASTM A554 | OD: 10×20~100x200mm WT: 0.7~6.5mm | MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill’s STD |
| Sanitary Tubing | ASTM A270 JIS G3447 | OD: 25.4~165.2mm WT: 0.8~3.05mm | TP304, TP304L, TP316L, SUS304TBS |
| Large Gauge Pipes for Ordinary Piping | JIS G3448 | OD: 15.88~318.5mm WT: 0.8~3.0mm | SUS304TPD |
| Large Diameter Pipes | JIS G3468 | OD: 14″~40″ WT: SCH5S~SCH40S | SUS304TPY |
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Better Raw Material
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