Mechanical Contracting & Plumbing January-December 1909 . ers of the same thickness of metal maybe subjected to a much greater hydraulicpressure with safety. It is possible alsofor it to be drawn into shapes such asboiler heads and pantry sinks. An important feature of the metal isthat having so large a constituent ofnickel it can be polished to have thesame bright surface found in nickelplated articles without the expense ofnickel plating. This adapts it admirablyto boiler and sink construction, as well asto bar fixtures, and, being a harder met-al, it is capable of standing rougher us-age wi
Mechanical Contracting & Plumbing January-December 1909 . ers of the same thickness of metal maybe subjected to a much greater hydraulicpressure with safety. It is possible alsofor it to be drawn into shapes such asboiler heads and pantry sinks. An important feature of the metal isthat having so large a constituent ofnickel it can be polished to have thesame bright surface found in nickelplated articles without the expense ofnickel plating. This adapts it admirablyto boiler and sink construction, as well asto bar fixtures, and, being a harder met-al, it is capable of standing rougher us-age without showing dents, and promisesto wear longer. Being of the same ma-terial all the way through it can be keptpolished as long as it lasts. Stronger than Steel. The accompanying illustrations are ex-act size reproductions of micro-photo-graphs of the cross section of pieces ofcast and rolled Monel metal. Figs. 1 and2 are of the same cross-section, but inFig. 1 the light is directly on the sectionwhile in Fig. 2 the illumination is at an. Fig. 2.—Light and Dark Parts ShowSize of Crystalline Grains. Fig. 3.—75 Diams, Rolled, EtchedLight. Monel metal, which was named afterAmbrose Monel, president of the Inter-national Nickel Co., is a combination ofnickel and copper in proportions, veryapproximately as they occur in the proportions are 68 to 72 per cent,nickel to 25 to 29 per cent, copper. Thecent, and slight traces of sulphur andalloy contains a little iron, about 2 percarbon. It is easily rolled at tempera-tures of from 900 degrees to 1,200 de-grees C. and can be finished hard orsoft similar to sheet copper. B. & Thompson, Montreal, are Canadianagents. Monel Easily Polished. In appearance the metal is silver-whiteand is easily polished to a high finishwhich finish will remain almost inde- bars it is adaptable to valve- stems,shafts, piston rods, resistance wire, rust-less screens, screws, rivets etc. Whenmade into bolts it is better than steelfor the reason
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