Introduction Our strut support system is designed with many time-saving features. They are fully adjustable and reusable, with a complete line of channels, fittings and accessories for multi-purpose applications. • No Welding Introduction • No Drilling • Use Your Imagination The strut system installs quickly, with no need for special tools. All you need is a wrench and hacksaw. Channels and parts can be taken apart for reuse as quickly as they were assembled, yet help provide the strength of welded construction. This eliminates welding and drilling which can have substantial savings in time and labor. 1. Channel nut may be inserted anywhere 2. A 90° turn aligns channel nut grooves along continuous slot. Designed for easy with inturned lips of the channel. insertion and self-alignment. 3. Position fitting over channel nut and 4. With the twist of a wrench, channel insert bolt to start any connection. nut locks its teeth firmly against inturned lips. 2 Strut Systems Table of Contents Our strut system provides an economical solution for electrical, mechanical and industrial supports with an unlimited variety of applications in the construction industry. Introduction Electrical Applications • Lighting Fixture Supports • Raceway Systems • Trapeze Hangers • Pipe & Conduit Supports • Cable Tray Supports • Beam Adjustments Mechanical Applications • Piping Racks • Tunnel Pipe Stanchions • Concrete Inserts • Beam Attachments • Pipe Risers Industrial Applications • Racks and Shelving • Partitions • Production Line Supports • Trolley Systems • Wall Framing Strut Systems 3 Technical Data MATERIALS Carbon Steel Aluminum - Channels made from high-quality carbon Standard aluminum channel is extruded concentrated levels of Chlorine, [ Cl ]. steel are continuously roll formed to from aluminum alloy 6063-T6. Strut fittings Please consult our fiberglass corrosion precise dimensions. By cold working the are made from aluminum alloy 5052-H32. resistance charts on pg. 183 for specific steel mechanical properties are increased, chemical recommendation data. allowing lightweight structures to carry the The high strength to weight ratio of required load. Corrosion resistance of channel made of aluminum helps greatly Unlike other base materials depicted in carbon steel varies widely with coating and reduce the overall cost of installation this catalog, fiberglass exhibits unique alloy. See “Finishes” for more detailed through ease of handling and field cutting. physical property changes when operating information. in elevated temperature conditions that are Aluminum owes its excellent corrosion a fraction of increase compared to steel or Stainless Steel resistance to its ability to form an aluminum. Thus, it is advised against using Stainless steel channel is available in AISI aluminum oxide film that immediately fiberglass in temperatures greater than Type 304 or 316 material. Both are reforms when scratched or cut. In most 200° F. non-magnetic and belong to the austenitic outdoor applications, aluminum has stainless steels group, based on alloy excellent resistance to “weathering”. Please refer to the "Corrosion Resistance content and crystallographic structure. Like The resistance to chemicals, indoor or Guide" below for specific applications. carbon steel, stainless steel exhibits outdoor, can best be determined by tests increased strength when cold worked by conducted by the user with exposure to The fiberglass strut systems are Technical Data roll-forming. the specific conditions for which it is manufactured from glass fiber-reinforced intended. The corrosion resistance of plastic shapes that meet ASTM E-84, Class Several conditions make the use of aluminum to some commonly known 1 Flame Rating and self-extinguishing stainless steel ideal. These include chemicals is shown in the Corrosion requirements of ASTM D-635. A surface reducing long term maintenance costs, Chart. For further information, contact veil is applied during pultrusion to insure a high ambient temperatures, appearance, us or the Aluminum Association. and stable structural properties such as resin-rich surface and ultraviolet resistance. yield strength, and high creep strength. Fiberglass While polyester is sufficient for most uses, We offer two fire retardant (FR) resins for vinyl ester is suitable for a broader range of Type 304 resists most organic chemicals, strut systems, polyester and vinyl ester. environments. dyestuffs and a wide variety of inorganic Both resins are ideal for corrosive chemicals at elevated or cryogenic environments or nonconductive temperatures. Type 316 contains slightly applications with moderate strength more nickel and adds molybdenum to give requirements. Some common types of it better corrosion resistance in chloride environments where Vinyl Ester Resins are and sulfuric acid environments. For more recommended, that Poly Esters are not, information concerning the differences are paper mills, most any metal plating between types 304 and 316, visit operation and any condition with www.cooperbline.com/contactus. B-Line Steel Strut is stamped with: Traceable to the steel’s origin Material/Finish B-Line B22 SS6 87401A6 B-Line part number designation Company Name 4 Strut Systems Technical Data FINISHES Chromium/ Zinc Hot Dip Galvanized After Chromium/ Zinc is a corrosion resistant Fabrication (Hot dip galvanized or Zinc Coatings composition, which was developed to batch hot dip galvanized) Zinc protects steel in two ways. First it protect fasteners and small bulk items for Hot dip galvanized strut products are protects the steel as a coating and automotive use. The coating applications fabricated from steel and then completely second as a sacrificial anode to repair have since been extended to larger parts immersed in a bath of molten zinc. A bare areas such as cut edges, scratches, and other markets. metallic bond occurs resulting in a zinc and gouges. The corrosion protection of coating that completely coats all sufaces, zinc is directly related to its thickness and Chromium/Zinc composition is an including edges and welds. the environment. This means a .2 mil aqueous coating dispersion containing coating will last twice as long as a .1 mil chromium, proprietary organics, and zinc Another advantage of this method is coating in the same environment. flake. coating thickness. Strut products that are hot dip galvanized after fabrication have a Galvanizing also protects cut and drilled This finish provides 500 hours protection minimum thickness of 1.50 ounces per edges. in salt spray testing per ASTM B117. square foot on each side, or a total 3.0 ounces per square foot of steel, Technical Data Zn Pre-Galvanized Zinc according to ASTM A123. ZnFe (Mill galvanized, hot dip mill galvanized The zinc thickness is controlled by the Fe ZnO or continuous hot dip galvanized) Pre- amount of time each part is immersed in galvanized steel is produced by coating the molten zinc bath as well as the speed coils of sheet steel with zinc by at which it is removed. The term "double continuously rolling the material through dipping" refers to parts too large to fit molten zinc at the mills. This is also into the galvanizing kettle and, therefore, Electrogalvanized Zinc known as mill galvanized or hot dip mill must be dipped one end at a time. It galvanized. These coils are then slit to Electrogalvanized Zinc (also known as does not refer to extra coating thickness. size and fabricated by roll forming, zinc plated or electroplated) is the shearing, punching, or forming to process by which a coating of zinc is The layer of zinc which bonds to steel produce our pre-galvanized strut provides a dual protection against deposited on the steel by electrolysis products. corrosion. It protects first as an overall from a bath of zinc salts. barrier coating. If this coating happens The G90 specification calls for a coating to be scratched or gouged, zinc's A rating of SC3, our standard, provides a of .90 ounces of zinc per square foot of secondary defense is called upon to minimum zinc coating thickness of .5 mils steel. This results in a coating of .45 protect the steel by galvanic action. (excluding hardware, which is SC1 = .2 ounces per square foot on each side of mils). the sheet. This is important when Hot-Dip Galvanized After Fabrication is comparing this finish to hot dip recommended for prolonged outdoor When exposed to air and moisture, zinc galvanized after fabrication. exposure and will usually protect steel for forms a tough, adherent, protective film 20 years or more in most atmospheric consisting of a mixture of zinc oxides, During fabrication, cut edges and welded environments and in many industrial hydroxides, and carbonates. This film is areas are not normally zinc coated; environments. For best results, a zinc in itself a barrier coating which slows however, the zinc near the uncoated rich paint (available from B-Line) should subsequent corrosive attack on the zinc. metal becomes a sacrificial anode to be applied to field cuts. The zinc rich This coating is usually recommended for protect the bare areas after a short period paint will provide immediate protection indoor use in relatively dry areas, as it of time. for these areas and eliminate the short provides ninety-six hours protection in time period for galvanic action to “heal” salt spray testing per ASTM B117. the damaged coating. Anticipated Life of Zinc Coatings In Various Atmospheric Environments 40 36 Hot Dip Galvanized = Zinc Coating 1.50 Oz./Ft.2 (.0026” Thick) Pre-Galvanized = Zinc Coating 0.45 Oz./Ft.2