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Special Metals UDIMET® Alloy 250 Maraging Steel
| Category | Metal , Ferrous Metal , Maraging Steel |
| Manufacturer | Special Metals (includes the former Inco Alloys International Inc.) |
| Trade Name | UDIMET® |
| Port | Shanghai port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Special Metals UDIMET® Alloy 250 Maraging Steel.pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
A high-strength, maraging steel of iron and nickel with additions of molybdenum and titanium. It has the strength of standard 18Ni (250) maraging steel but the advantages of containing less molybdenum and no cobalt. Used for missile cases, aircraft forgings, power-transmission shafts and couplings, springs, bolts, punches, and dies. Standard product forms are round, flats, forging stock, and wire.Data provided by the manufacturer, Special Metals.
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 7.92 g/cc | 0.286 lb/in³ |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Tensile Strength, Ultimate | 1830 MPa | 265000 psi | Precipitation Hardened |
| Tensile Strength, Yield | 1750 MPa @Strain 0.200 % |
254000 psi @Strain 0.200 % |
Precipitation Hardened |
| Elongation at Break | 12 % | 12 % | Precipitation Hardened |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 10.04 µm/m-°C @Temperature 20.0 - 100 °C |
5.578 µin/in-°F @Temperature 68.0 - 212 °F |
|
| Thermal Conductivity | 20.3 W/m-K | 141 BTU-in/hr-ft²-°F | |
| Melting Point | 1435 - 1505 °C | 2615 - 2741 °F | |
| Solidus | 1435 °C | 2615 °F | |
| Liquidus | 1505 °C | 2741 °F |
| Component Elements Properties | Metric | English | Comments |
|---|---|---|---|
| Aluminum, Al | 0.050 - 0.15 % | 0.050 - 0.15 % | |
| Carbon, C | <= 0.030 % | <= 0.030 % | |
| Iron, Fe | 75 % | 75 % | As remainder |
| Manganese, Mn | <= 0.10 % | <= 0.10 % | |
| Molybdenum, Mo | 2.75 - 3.25 % | 2.75 - 3.25 % | |
| Nickel, Ni | 18 - 22 % | 18 - 22 % | |
| Phosphorous, P | <= 0.010 % | <= 0.010 % | |
| Silicon, Si | <= 0.10 % | <= 0.10 % | |
| Sulfur, S | <= 0.010 % | <= 0.010 % | |
| Titanium, Ti | 1.3 - 1.45 % | 1.3 - 1.45 % |
| Electrical Properties | Metric | English | Comments |
|---|---|---|---|
| Electrical Resistivity | 0.0000489 ohm-cm | 0.0000489 ohm-cm |
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