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, Data Technical 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 (.00075” Thick) 30 29 Life 25 in 21 Years 20 18

10 11 10 8 7 6 5 3

Rural Tropical Temperature Suburban Urban Highly Marine Marine Industrial Environment

Strut Systems 5 Technical Data

DURA-GREEN™ and “Standard for Pipe Hanger Equipment for thoroughly. A bonding coat is applied to DURA- COPPER™ Epoxy Coatings Fire Protection Service, UL203”. the part and then preheated to a DURA-GREEN and DURA-COPPER epoxy temperature above the melting point of the coatings are water borne epoxy coatings Due to DURA-GREEN’s organically based coating powder. The product is then applied to B-Line products by a precisely composition, it seats itself into porous passed through a fluidized bed of vinyl controlled cathodic electro-deposition surfaces more completely and efficiently plastic powder where the powder particles process. This process is accomplished than zinc coatings. As these porous melt, adhere and flow out to form a using a conveyor to transport channel caverns are filled along the material smooth continuous coating. The thickness and fittings through several cleaning, profile, the outer finished surface is controlled by the base metal temperature phosphatizing and application stages prior demonstrates an increased smooth and the immersion time in the bed. It is to being baked (See diagram below). uniform plane which produces then post-heated to complete the fusion of considerably less off-gasing when tested. the outer surfaces. This custom-designed paint system is used for painting all channels, channel DURA-GREEN channel meets or exceeds The standard coating thickness of B-Line’s combinations, slotted angle, and fittings. 100 level clean room standards. This was PVC coated products is 15 mils (.380 mm), confirmed by testing the channel in plus or minus 5 mils (.125 mm). Since the Samples are selected on a routine basis accordance with Boeing (PCL) Standards, chemistry, not the thickness of vinyl plastic for Salt Spray (fog) testing to verify the which are more stringent and complete PVC determines longevity, a coating of 10 quality of the finish. These tests are than ASTM E595-93. DURA-GREEN was to 20 mils (.250 to .500 mm) is more than performed in accordance with ASTM B117 found to be a superior finish, due in part to adequate. If the corrosive conditions are and evaluated and related according to its proven application process. such that the plasticizers are leeched out,

Technical Data ASTM D1654 (Tables 1 & 2). a thicker coating will do little to extend the PVC Coating life of a coated product. The DURA-GREEN and DURA-COPPER Another of the corrosion resistant coatings Epoxy coatings have been tested and offered by B-Line is PVC (polyvinyl For certain environments, a plastisol listed by Underwriters Laboratories in chloride), applied over steel or aluminum dipped PVC coating is available on accordance with “Standard for Surface channel and fittings. The PVC coating request. Metal Raceway and Fittings, UL5” and process begins by cleaning the product PVC coating depends totally on the concept of encapsulation attached to the SALT SPRAY TEST RESULTS base metal by a bonding agent. If any hole or discontinuity occurs, the corrosive ˛ Unscribed Scribed 1/8” (3.2) Creepage action can undercut the base metal to a Type of Finish 5% Failure (1) from Scribe (1) point where all that remains is the PVC. B-Line DURA-GREEN Epoxy 1000 Hours 312 Hours In the event of field cuts or any other Mill Galv. (Pre-Galv.) G90 192 Hours 288 Hours damage to the coating, a liquid PVC patch, Perma-Green 438 Hours 231 Hours available from B-Line, must be applied to Zinc Chromate 36 Hours 96 Hours maintain the integrity of the coating. After the installation is complete, a thorough Industry Green (Range) 10 to 36 Hours 4 to 30 Hours inspection should be performed to assure (1) All salt spray (fog) tests conducted in accordance with ASTM B117 and evaluated and the absence of voids, pinholes, or cuts. rated according to ASTM D1654 Tables 1 & 2. Tests are performed and certified by an independent testing laboratory.

DURA-GREEN™/DURA-COPPER™ EPOXY COATING PROCESS

TANK 1 TANK 2 TANK 3 TANK 4 TANK 5 TANK 6 TANK 7 TANK 8 BAKE OVEN The channel A rinse is A phosphatized The material A pre-deionized The electro- The first The final rinse The curing and parts are applied to sealer is applied moves through rinse prepares coating tank post rinse insures a process takes 20 thoroughly remove to insure clear water rinse the metal for the applies a removes any smooth, minutes at a cleaned and insoluble salts corrosion to remove excess cathodic electro- uniform coat unelectrically nonblemish baking temperature phosphatized. and unreacted resistanceand phosphates. coating. of epoxy paint attracted surface. of 375° F (199° C). phosphates. paint adhesion. to the entire solids. surface.

6 Strut Systems Technical Data

WELDING

The welding procedures used in the weld sequence, speed and duration are Quality Assurance fabrication of our steel products are in carefully controlled and monitored by a Our Quality Assurance Program has accordance with American Welding sophisticated electronic control system. been developed and implemented for Society Standards. To achieve the A statistical quality control program, compliance with ISO9001:2008. We highest quality in our manufacturing combining destructive and non- also complies with various industry processes, our welders follow standards destructive testing, is used to ensure standards and specifications. We have set by AWS Code. high quality welds. extensive experience in suppling metal framing components for the nuclear Spot Welding MIG Welding power generating industry, and upon Spot welded back-to-back channel is MIG welded, more properly called gas request can provide products in manufactured using a modern DC metal arc welded (GMAW) combination compliance with 10CFR50 Appendix B, powered resistance welder controlled channels and fittings, are produced NQA-1 and 10CFR21. For more by a microprocessor. This produces a when physical dimensions or certain information on our quality capability Technical Data Technical series of spot welds with speed and combinations require a weld process please visit consistency. Consistency is one of the other than automatic spot welding. The www.cooperbline.com/nuclear. most important advantages in specifying same quality control requirements are back-to-back channel. Variables such as imposed on MIG welded and spot- welded products.

Spot Weld MIG Weld

Strut Systems 7 Technical Data

CORROSION GALVANIC SERIES IN SEA WATER All metal surfaces are affected by Anodic End corrosion. Depending on the physical Magnesium properties of the metal and the Magnesium Alloys environment to which it is exposed, Zinc chemical or electromechanical corrosion Beryllium may occur. Aluminum - Zinc Alloys (7000 series) Atmospheric Corrosion Aluminum - Magnesium Alloys (5000 series) Atmospheric corrosion occurs when Aluminum (1000 series) metal is exposed to airborne liquids, Aluminum - Magnesium Alloys (3000 series) solids or gases. Some sources of Aluminum - Magnesium - Silicon Alloys (6000 series) atmospheric corrosion are moisture, salt, Cadmium dirt and sulphuric acid. This form of Aluminum - Copper Alloys (2000 series) corrosion is typically more severe Cast Iron, Wrought Iron, Mild Steel outdoors, especially near marine Austenitic Nickel Cast Iron environments. Type 410 Stainless Steel (active) Type 316 Stainless Steel (active) Chemical Corrosion Type 304 Stainless Steel (active) Chemical corrosion takes place when Naval Brass, Yellow Brass, Red Brass metal comes in direct contact with a Tin Technical Data corrosive solution. Some factors which Copper affect the severity of chemical corrosion Lead-Tin Solders include: chemical concentration level, Admiralty Brass, Aluminum Brass duration of contact, frequency of Manganese Bronze washing, and operating temperature. Silicon Bronze

Storage Corrosion More Anodic Tin Bronze Type 410 Stainless Steel (passive) Wet storage stain (white rust) is caused Nickel - Silver by the entrapment of moisture between surfaces of closely packed and poorly Copper Nickel Alloys ventilated material for an extended Lead period. Wet storage stain is usually Nickel - Aluminum Bronze superficial, having no affect on the Silver Solder properties of the metal. Nickel 200 Silver Light staining normally disappears with Type 316 Stainless Steel (passive) weathering. Medium to heavy buildup Type 304 Stainless Steel (passive) should be removed in order to allow the Incoloy 825 formation of normal protective film. Hastelloy B Proper handling and storage will help to Titanium assure stain-free material. If product arrives wet, it should be unpacked and Hastelloy C dried before storage. Dry material should Platinum be stored in a well ventilated “low Graphite moisture” environment to avoid Cathodic End condensation formation. Outdoor storage is undesirable, and should be avoided Metals in descending order of activity in the presence of an electrolyte. whenever possible. Galvanic Corrosion Galvanic corrosion occurs when two or cathode, and will be protected. If steel 2. The amount and concentration of more dissimilar metals are in contact in and copper are in contact, the steel is electrolyte present - an indoor, dry the presence of an electrolyte (ie. now the anode and will corrode. environment will have little or no galvanic moisture). An electrolytic cell is created The rate at which galvanic corrosion corrosion compared to a wet and the metals form an anode or a occurs depends on several factors: atmosphere. cathode depending on their relative position on the Galvanic Series Table. 3. The relative size of the materials - a The anodic material will be the one 1. The relative position on the Galvanic small amount of anodic material in to corrode. Anodic or cathodic Series Table - the further apart materials contact with a large cathodic material will characteristics of two dissimilar metals are in the Galvanic Series Table, the result in greater corrosion. Likewise, a will depend on the type of each material. greater the potential for corrosion of the large anode in contact with a small For example: If zinc and steel are in anodic material. cathode will decrease the rate of attack. contact, the zinc acts as the anode and will corrode; the steel acts as the

8 Strut Systems Technical Data

Type 304 Type 316 Zinc Chemical Aluminum Dura-Green PVC Stainless Stainless Coated Steel Acetic Acid 10% R NR RR R NR Acetic Acid 2% RFRRRNR Acetone RRNR RR R Ammonium Hydroxide-Conc. RRRRR– Ammonium Hydroxide 10% FRRRR– Ammonium Hydroxide 2% RRRRR– Benzene RRNR RR – Bromine Water NR RRNR NR – Butanol (Butyl Alcohol) RRRRRR Carbon Disulfide RRNR RR – Carbon Tetrachloride FRFRR– Chlorine Water RRRNR FR Cutting Oil –R––––

Diethanolamine RRNR ––NR Data Technical Ethanol RRRRRR Ethyl Acetate RRNR –– R Ethylene Dichloride FRNR –– R Formaldehyde 20% RRRRRR Gasoline RRRRRR Glycerine RRRRRR Household Detergent 10% FRRRR– Hydrochloric Acid 40% NR NR R NR NR NR Hydrochloric Acid 10% NR F–NR NR NR Hydrochloric Acid 2% NR F–NR NR NR Hydrogen Peroxide 30% R NR RR R – Hydrogen Peroxide 3% RR–RR– Hydrogen Sulfide (Gas) RRRFR– JP-4 Jet Fuel RRRRR– Lactic Acid 85% FRRNR –– Latex RR–RRNR Linseed Oil Fatty Acid RFRRR– Methanol RRRRRR Methyl Ethyl Ketone RRNR –– R Methyl Isobutyl Ketone RRNR –– R Mineral Spirits RR–––– Motor Oil-10W RRRRRR Naphtha, VM&P RRRRRR Nitric Acid 2% F NR RR R – Perchloroethylene RR–––NR Petroleum Ether –R–RRR Phenol 10% RRNR RR R Phosphoric Acid 2% F NR RR R NR Potassium Hydroxide 50% NR RRRR – Potassium Hydroxide 10% NR RRRR – Potassium Hydroxide 2% NR RRRR – Sodium Chloride 25% FRRRRF Sodium Hydroxide 50% NR RRRR NR Sodium Hydroxide 10% NR RRRR F Sodium Hydroxide 2% NR RR– – – Sodium Hypochlorite-C1. 10% FRR––– Sodium Hypochlorite-C1. 6% FRRNR R– Sulfuric Acid 2% F NR R NR R NR Tall Oil Fatty Acid (Syfate 94) RRR––– Tannic Acid 50% FRRRR– Water-Deionized RRRRRF Water-Sea FFRRRF Water-Tap RRRFFR Xyol RRNR –– – Fiberglass corrosion chart on page 183. The corrosion data given in this table is for general comparison only. The presence of contaminates and the effect of temperature in chemical environments can greatly affect the corrosion of any material. B-Line strongly suggests that field service tests or simulated laboratory tests using actual environmental conditions be conducted in order to determine the proper materials and finishes to be selected. R=Recommended F=May be used under some conditions NR=Not Recommended –Information not available

Strut Systems 9 Fittings

This section offers a full selection of fittings and accessories to complete our strut system. Fittings are made from hot rolled, pickled and oiled plate or strip steel in accordance with ASTM A1018 33,000 PSI min. yield, unless noted. Dimensions The following dimensions apply to all fittings except as noted:

Hole Spacing – 17/8” (47.6 mm) on center Hole Spacing – 13/16” (20.6 mm) Hole Size – 9/16” from end (14.3 mm) diameter

Thickness – 7/32” (5.5 mm)

Width – 15/8” (41.3 mm)

Materials & Finishes (Unless otherwise noted)

Finish Code Finish Specification PLN Plain ASTM A1018 33,000 PSI min. yield ZN Electro-Plated Zinc ASTM B633 SC3 Type III or ASTM A653 GRN DURA-GREEN™ HDG Hot-Dipped Galvanized ASTM A123 SS4 Stainless Steel Type 304 ASTM A240 SS6 Stainless Steel Type 316 ASTM A240 AL Aluminum ASTM B209 Note: A minimum order may apply on special material and finishes. Load Data The load data published includes safety factor of 2.5 when used with 12 ga. (2.6) channel (safety factor = ratio of ultimate load to the design load).

Use 1/2”-13 x 7/8” hex head cap screws and 1/2”-13 (N225 or TN225) channel nuts for the rated results. Recommended Bolt Torque

Bolt Size 1/4”-20 5/16”-18 3/8”-16 1/2”-13 Foot/Lbs. 6 11 19 50 Nm 8 15 26 68 See chart on page 112 for setscrew torque. Hardware Nuts and bolts are not included with the fittings and must be ordered separately, unless noted. Pre-Assembled Fittings Some fittings are available with hex head cap screws and channel nuts pre-assembled. Strut Fittings These fittings and finishes will be flagged using the following symbol. ZN PA GRN Metric Metric dimensions are shown in parentheses. Unless noted, all metric dimensions are in millimeters.

72 Strut Systems Flat Plate Fittings

B138 B139 B504 TWO HOLE SWIVEL PLATE THREE HOLE SWIVEL PLATE FOUR HOLE SPLICE PLATE • Standard finishes: ZN, GRN • Standard finishes: ZN, GRN • Standard finishes: ZN, GRN • Wt./C 48 Lbs. (21.8 kg) • Wt./C 69 Lbs. (31.3 kg) • Wt./C 73 Lbs. (33.1 kg)

45/8” (117.5) 61/2” 3” (165.1) 5 31/2” 1 /8” (76.2) (41.3) 3” (88.9) 1 4 7 3 / ” 1 /8” (76.2) (82.5) (47.6)

B140 B143 B133 THREE HOLE CORNER PLATE FOUR HOLE CORNER PLATE FOUR HOLE TEE PLATE • Standard finishes: ZN, GRN, HDG, • Standard finishes: ZN, GRN, HDG, • Standard finishes: ZN, GRN, HDG, SS4 SS4 SS4, AL • Wt./C 56 Lbs. (25.4 kg) • Wt./C 75 Lbs. (34.0 kg) • Wt./C 75 Lbs. (34.0 kg) ZN ZN ZN 31/2” PA GRN PA GRN PA GRN (88.9) 31/2” 31/2” (88.9) (88.9) 3 31/2” 5 /8” (88.9) (136.5)

53/8” (136.5)

B132 B135 B142 FIVE HOLE CROSS PLATE THREE HOLE CORNER FOUR HOLE CORNER • Standard finishes: ZN, GRN, HDG GUSSET PLATE GUSSET PLATE • Wt./C 100 Lbs. (45.3 kg) • Standard finishes: ZN, GRN • Standard finishes: ZN, GRN, HDG • Wt./C 70 Lbs. (31.7 kg) • Wt./C 102 Lbs. (46.2 kg) PA ZN GRN ZN PA GRN 53/8” 1 (136.5) 3 /2” (88.9) 31/2” (88.9)

31/2 (88.9) Strut Fittings 53/8” 53/8” (136.5)

PA Preassembled fitting.

Reference page 72 for general fitting and standard finish specifications.

74 Strut Systems