Monel 400 rod and monel K500 rod

What is the difference between Monel 400 rod and monel K500 rod?
Monel 400 rod is a solid solution strengthened alloy and Monel K-500 is a precipitation strengthened alloy. The overall properties of K-500 alloy rod are superior to 400 alloy rod. Both alloys have very good corrosion resistance. Monel 400 rod is magnetic in some cases, while Monel K-500 rod is non-magnetic in all cases.
What is the maximum operating temperature of Monel 400 alloy rod?
Monel 400 alloy rod is a nickel-copper solid solution strengthened alloy. The alloy has moderate strength, good weldability, good corrosion resistance and toughness. Its maximum service temperature is 1000°F (538°C).


What is the heat treatment method for Monel 400 alloy bar?
Annealing heat treatment temperature of MONEL400 alloy bar should generally be carried out in the range of 700 to 900°C (1300 to 1650°F), and the recommended temperature is about 825°C (1510°F). Rapid air cooling or water quenching is recommended for better corrosion resistance.
Is K500 alloy rod magnetic?
Characteristics of K-500 alloyThe alloy is non-magnetic. K-500 alloy rod (2.4375/N05500) is available in the cold-formed or hot-formed condition, or in a subsequently heat-treated condition (solution annealed or age-hardened condition).

Monel 400/K500 Round Bars Chemical Composition
| Grade | C | Mn | Si | Cu | Fe | Ni | s |
| Monel 400 | 0.30 max | 2.00 max | 0.50 max | 28.00 – 34.00 | 2.50 max | 63.00 min | 0.024 max |
| Monel K500 | 0.25 max | 1.5 max | 0.5 max | 63.00 min | 0.010 max | 27.00 – 33.00 | 0.5 – 2 |
Monel 400/K500 Round Bars Mechanical Properties
| Density | Melting Point | Elongation | Tensile Strength | Yield Strength (0.2%Offset) |
| 8.8 g/cm3 | 1350 °C (2460 °F) | 40% | Psi – 80,000 , MPa – 550 | Psi – 35000 , MPa – 240 |
Monel K500 Round Bar Size Charts
| Diameter in MM | Size in Inch |
|---|---|
| 5 | 5 |
| 6 | 6 |
| 8 | 8 |
| 10 | 10 |
| 12 | 12 |
| 16 | 16 |
| 20 | 20 |
| 25 | 25 |
| 32 | 32 |
| 40 | 40 |
| 5.5 | 5.5 |
| 36 | 36 |
| 28 | 28 |
| 22 | 22 |
| 18 | 18 |
| 44 | 44 |
| 14 | 14 |
| 11 | 11 |
| 9 | 9 |
| 7 | 7 |
| 50 | 50 |
Size Range of Alloy 400 Round Bar
| Size & Dimensions of Monel 400 round bar | |||||||
|---|---|---|---|---|---|---|---|
| Metric | US Bar | ASTM/ Canadian | Japanese | ||||
| Bar Size | Diam. (mm) | Bar Size | Diam. (Inch) | Bar Size | Diam. (mm2) | Bar Size | Diam. (mm) |
| 5 | 5 | #2 | 0.250 | 10M | 100 | 6 | 6 |
| 5.5 | 5.5 | #3 | 0.375 | 15M | 200 | 10 | 10 |
| 6 | 6 | #4 | 0.500 | 20M | 300 | 13 | 13 |
| 7 | 7 | #5 | 0.600 | 25M | 500 | 16 | 16 |
| 8 | 8 | #6 | 0.750 | 30M | 700 | 19 | 19 |
| 9 | 9 | #7 | 0.875 | 35M | 1000 | 22 | 22 |
| 10 | 10 | #8 | 1.000 | 45M | 1500 | 25 | 25 |
| 11 | 11 | #9 | 1.125 | 55M | 2500 | 29 | 29 |
| 12 | 12 | #10 | 1.250 | 32 | 32 | ||
| 14 | 14 | #11 | 1.375 | 35 | 35 | ||
| 16 | 16 | #12 | 1.500 | 38 | 38 | ||
| 18 | 18 | #13 | 1.600 | 41 | 41 | ||
| 20 | 20 | #14 | 1.750 | 44 | 44 | ||
| 22 | 22 | #15 | 1.875 | 48 | 48 | ||
| 25 | 25 | #16 | 2.000 | 51 | 51 | ||
| 28 | 28 | #18 | 2.250 | 57 | 57 | ||
| 32 | 32 | ||||||
| 36 | 36 | ||||||
| 40 | 40 | ||||||
| 44 | 44 | ||||||
| 50 | 50 | ||||||

Gnee Steel is a supplier of Monel 400 Rod And Monel K500 Rod, products include tubes: seamless tubes: size: 4 - 219 mm; thickness: 0.5 - 20 mm; welded tubes: size: 5.0 - 1219.2 mm; thickness: 0.5 - 20 mm, plates: plate thickness 0.1 to 100 mm; plate width 10-2500 mm, strips, alloy round rods size: diameter 3-800 mm;, flat rods size: thickness 2-100 mm; width: 10-500 mm, hexagonal rods size: 2-100 mm;, wire and extruded profiles. We work with steel mills to provide customers with 625 alloy, and its products meet or exceed many leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN and BS standards.
Gnee Steel stocks and sells Monel 400 Rod And Monel K500 Rod, Tube, Pipe, Plate, Strip, Plate, Round Bar, Flat Bar, Forged Billet, Hexagon, Wire and Extruded Profiles. Feel free to contact us for a quote at ss@gneesteel.com





