Document o9jyD4k6G8vekYm1Qr6namQw7

Air System Equipment sheet Metals United States Steel Corporation Subsidiaries Camegie-Illlnois Steel Corporation, Pittsburgh and Chicago Columbia Steel Company, San Francisco Tennessee Coal, Iron & Railroad Company,'Birmingham United States Steel Export Company, New York District Offices in all Principal Cities U-S-S COPPER. STEEL For Superior Rust Resistance at Low Cost Corrosion resistance and cost are two determining factors of the type of metal, to be used for various air-conditioning jobs. Copper Steel has 2 to 3 times the at mospheric corrosion resistance of plain steel or pure iron as shown in the results of unbiased tests made at Pittsburgh, Ft. Sheridan and Annapolis by the Amer ican Society, for Testing Materials. The cost of .U-S-S Copper Steel isless than that of pure iron or copper-; bearing pure iron and only slightly more than plain steel. Thus there often is a dividend of 200 per cent to 300 per cent longer life and a saving in the first cost as well. - When galvanized, U-S S Copper Steel produces a sheet that is rust resistant all the way through--not just on the surface. It should be used for all ducts carrying humidified air or placed in damp locations such as basements, shower rooms, etc. Corrosion tost of A.S.T.M. on it gage Hack sheets exposed at Annapolis, Md., October, 1916.' The cop per sled sheds outlasted all others in the test. U-S-S DUL-KOTE U-S-S PAINTBOND UfS-S Dul-Kote is a specially treated U-S-S PaintBond shpuld - be used whenever galvanized steel is to be painted. This special Bonderized sheet can be painted immediately, offers a much better surface for painting, lessens danger of the paint flaking and retards corrosion. It is used for ductwork, furnace housings and outdoor metal work. Produced in Chicago district. Send for our PaintBond booklet. U-S-S GALVANNEALED non-spangled galvanized sheet which also can be painted .immediately without aging or otherwise preparing the surface. Produced in Birmingham district. Send for our Dul-Kote booklet. OTHER U-S-S PRODUCTS INCLUDE: Black Sheets--All grades, hot rolled, cold rolled in a number of different U-S-S Galvannealed has a tight, matte-surface zinc coating that withT stands severe forming operations with out peeling or cracking. Suitable for immediate painting without aging or other ' surface preparation. Produced in Chicago district. finishes. Stainless--Heat resisting steel for various uses where temperatures are high and corrosion severe. '. Cor-Ten--High strength steel--greater strength, greater atmospheric corrosion resistance for smokestacks, hoods, etc. Bends, Coils, Fittings Expansion joints Chicago Metal Hose Corporation EXPANSION JOINT DIVISION Maywood, Illinois PLANTS Maywood, Elgin and Rock Falls, 111. Atlanta Boston District Offices Chicago Cleveland Detroit Ft. Worth Dos Angeles New York Philadelphia Pittsburgh San Francisco In Canada: Canadian Metal Hose Company, Ltd., Brampton, Ontario CMH CONTROLLED-FLEXING EXPANSION JOINTS For pressures up to 300 psi--copper liners for temperatures to 400 F, stainless steel liners for temperatures to 1400 F (under certain conditions). CMH Controlled-Flexing Expansion Joints combine CMH "engineered curva ture of corrugations" with precision de signed control rings. The corrugationmated control rings provide guided flexing of the joint and prevent any per manent deformation of corrugations. Control rings are firmly anchored into corrugations to close working dimension tolerances. Expansion travel up to 6f in. may be secured with a single CMH Expansion Joint. Standard sizes from 4 in. to 24 in. I.D. in either stainless steel or-copper. Avail able with or without stainless steel or Monel internal sleeves. r ,>r ; ji i Cut-away view of CMH Controlled-Flexing Expan sion Joint with flanged ends. CMH Controlled-Flexing Expansion Joint with Weld ing Ends. CMH FREE-FLEXING EXPANSION JOINTS . . . for pressures up to 30 psi . . . Stainless Steel or copper . . . temperatures to 1400 F for Stainless Steel units (under certain conditions) and 400 F for copper. CMH Free-Flexing Expansion Joints are made with single or multiple corru- gations. Designed for expansion travel up to 1 in. per unit. Used in low to mod erate pressure systems for controlling expansion up to -fa in. with each expan sion joint. Additionally, misalignment correction or offset motion is calculated r at fa in* per corrugation when two or ` more corrugations are used. When more than four corrugations are used a greater lateral motion may be allowed, depend ing on service requirements. Standard sizes from 4 in. to 24 in. I.D. in either stainless steel or copper. Avail able with or without stainless steel or Monel internal sleeves. Left--CMH Free-Flexing Expansion Joints with multiple-corrugations require less force to compress tnan single-corrugation joints. Force necessary to compress multiple-corrugation joints may be calculated for copper by multi plying inside diameter in inches by 100; for stainless steel, 150 times diameter in inches. Right--CMH single-corrugation Expansion Joint for travel up to | in. Force in pounds necessary to compress joint | in. may be calcu lated for copper, by multiplying 200 by inside diameter of pipe in inches; for stainless steel, multiply pipe diameter in inches by 300. 1217 ! -1