MULTIMET N155 (wire) 2.4mm
MULTIMET N155 (wire) 2.4mm
List of Features
MULTIMET N155
MULTIMET® alloy (UNS R30155, W73155) is recommended for us in applications involv-ing high stress at temperatures up to 1500°F, and moderate stress up to 2000°F. It has excellent oxidation resistance, good ductility, and is readily fabricated. Its high-temperature properties are inherent and are not dependent upon age-hardening. Production and use of the alloys dates back to the late 1940s.The alloy has been used in a number of aircraft application including tailpipes and tail cones, afterburner parts, exhaust manifolds, combustion chambers, turbine blades, buck-ets, and nozzles. It also gives excellent service for high-temperature bolts, and has proven to be an economical material of construction for use in heat-treating equipment where strength at high temperatures is essential.MULTIMET® alloy has good resistance to corrosion in certain media under both oxidiz-ing and reducing conditions. When solution heat treated, MULTIMET® alloy has about the same resistance to nitric acid as does stainless steel. It has better resistance than stain-less steel to weak solutions of hydrochloric acid. It withstands all concentrations of sulfuric acid at room temperature.MULTIMET® alloy can be machined, forged and cold-formed by conventional methods. The alloy can be welded by various arc and resistance-welding processes.
%Chemical composition
| W | Mo | Cr | Co | Ni | Fe |
| 2.5 | 3 | 21 | 20 | 20 | 30 |
| Mn | Si | Ta | N | C | |
| 1.5 | 1 | 1 | 0.15 | 0.12 | |
Hardness
| Typical ASTM Grain Size | Hradness, HRBW | Form |
| 6.5 - 4.5 | 90 | Sheet |
| 6.5 - 3 | 92 | Plate |
| 5 - 3 | 89 | Bar |
Specifications
| Forgings | Bare Welding Rods & Wire | Billet, Rod, Bar | Sheet, Plate, Strip |
| AMS 5768 B639 | AMS 5794 | AMS 5769 | AMS 5532 |
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