EXPANDED METAL & GRATING - Alro Steel

1 Racking and handling systems keep Alro's diverse inventory organized and METAL & GRATINGEXPANDED METAL SHEETS GRATING TERMINOLOGY ..18-2 thru 18-3 ORDERING PROCEDURE ..18-3 Standard Carbon Flattened Carbon Sheets ..18-5 Standard Type 304 Stainless ..18-6 Flattened Type 304 Stainless ..18-7 Standard Aluminum Alloy 3003 Flattened Aluminum Alloy 3003 H14 ..18-9 Catwalk and Structural ..18-10 thru 18-11 Steel GRATING ..18-12 thru 18-13 Safety GRATING ..18-14 thru 18-17 Fiberglass GRATING ..18-17 thru 18-20 PERFORATED CARBON Steel SHEETS .. METALTERMINOLOGYSTYLE DESIGNATIONA combination of numbers, letters, and abbreviations permitting proper specifications of dimension, gauge, style, and weight. In EXPANDED METAL products, the first number designates nominal dimension, short way of design. The second number completes the designation and may specify the gauge of METAL , weight per 100 square feet, or may have some other significance.

2 GRATING products are designated by weight of finished product per square EXPANDED METALS tandard EXPANDED METAL as it comes from the press. The strands and bonds are set at a uniform angle to the plane on the sheet. This gives added strength and rigidity, as well as skid-resistant surface. Standard EXPANDED METAL is abbreviated METALF lattened EXPANDED METAL is manufactured by passing the standard EXPANDED sheet through a cold roll reducing mill. Flattened EXPANDED METAL turns the strands and bonds down to provide a flattened surface, reducing the thickness (gauge) and elongating the pattern. Thickness may vary plus or minus 10% from published is a standard EXPANDED METAL pattern produced from heavier gauge low carbon Steel plates. Strands and the openings of GRATING are considerably larger than other meshes. It is ideal for use wherever a strong, durable, lightweight surface is needed.

3 Although used primarily for pedestrian traffic, GRATING can accommodate heavier loads if properly SIZEA ctual dimensions SWD and LWD. Measured from a point to a corresponding point on the design Nominal dimension Short Way of DesignSWOS hort Way of OpeningLWDN ominal dimension Long Way of DesignLWOLong Way of OpeningSTRANDSThe sides of the EXPANDED METAL THICKNESSG auge thickness of METAL WIDTHA mount of METAL fed under dies toproduce one solid intersection of two EXPANDED METALFLATTENED EXPANDED METALSIDE SHEARINGThe process of cutting a piece of EXPANDED METAL parallel to the long dimension of the SIDE SHEARINGSide shearing is a cut made parallel to the LWD dimension of the sheet which usually leaves open SIDE SHEARINGThis cut is made along the length of the sheet on the center line of the bond over the specified width.

4 In most cases it is not practical to attempt to Bond Side Shear either regular or flattened EXPANDED METAL because of the SHEARINGEND RANDOM SHEARINGThe process of shearing a piece of EXPANDED METAL to a specified length (LWD). This cut normally leaves open diamonds at both ends but accomplishes close tolerance when both ends are BOND SHEARINGThe process of shearing a piece of EXPANDED METAL to a specified length (LWD). One end is cut on the Bond parallel to the SWD the other end usually has open BOND SHEARINGSIDE RANDOM SHEARINGEND BOND SHEAREND RANDOM SHEARINGORDERING PROCEDUREWhen ordering EXPANDED Metals, give complete style specifications to avoid possible error. Include style, standard or flattened, type of METAL , and sheet dimensions. SWD dimensions always given before LWD. EXAMPLE 1: EXAMPLE 2: 1/2" #18 carbon Steel standard 1/2" .051 aluminum standard 4 ft.

5 SWD by 8 ft. LWD 8 ft. SWD by 4 ft. LWDD rawings are exaggerated for illustrative SWD LWD SWD LWD SWO LWO Width SWD LWDEXPANDED METAL SHEETSE xpanded METAL is sheet Steel which has been slit and EXPANDED up to 10 times its original width. This results in an increase in the strength and rigidity of the basic sheet. Often used in industry or the home where there is a drainage problem or a need for free passage of air and light. Applications: Standard for partitions, guards, and enclosures; Flattened for trays, bins, shelving, and ofDesigns per ft. Thick-ness Overall Thick ness (in) Design Size(inches)Opening Size(inches)lbs per100 Sq. Length " #20 86 4 8 .250 .125 .718 .072 .036 .135 48 12 45 " #18 114 4 8 .250 .110 .718.

6 072 .048 .147 48 12 43 " #20 43 4 8 .500 .438 .938 .072 .036 .140 24 10 80 " #18 70 4&6 8&10 .500 .438 .938 .088 .048 .172 24 10 72 " #16 86 4 8 .500 .375 .938 .087 .060 .175 24 10 65 " #13 147 4&6 8&10 .500 .312 .938 .096 .092 .204 24 10 57 " #16 54 4&6 8&10 .923 .813 .101 .060 .210 13 6 78 " #13 80 4&6 8&10 .923 .750 .096 .092 .205 13 6 76 " #10 (13 ga.)

7 120 4&6 8&10 .923 .750 .144 .092 .290 13 6 72 " # 9 (10 ga.) 180 4&6 8&10 .923 .688 .150 .134 .312 13 6 68 1" #16 44 4 8 .938 .087 .060 .192 12 5 82 1 " #18 20 4 8 .068 .048 .140 9 4 90 1 " #16 40 4 8 .108 .060 .230 9 4 85 1 " #13 60 4&6 8&10 .105 .092 .242 9 4 85 1 " #10 (13 ga.) 79 4&6 8&10 .138 .092 .284 9 4 80 1 " # 9 (10 ga.) 120 4&6 8&10 .144 .134 .312 9 4 76 1 " # 6 ( 6 ga.) 250 4&6 8 .203 .198 .433 9 4 69 2" #10 (13 ga.) 68 6 12 .164 .092 .327 3 82 2" # 9 (10 ga.) 90 4 8 .149 .134 .312 3 84 Style STANDARDCARBON Steel STANDARD EXPANDED METAL " THROUGH 2" DIAMOND DESIGNSS tandardSheet Size (ft)Strand Size(inches)(%)OpenArea Continued on next page METAL SHEETSIn Standard EXPANDED METAL , the strands are set at sharp angles to the plane of the sheet.

8 In the Flattened EXPANDED METAL , the strands have been cold rolled to bring them into one plane, thus providing a flat surface. " #20 82 3&4 8 .250 .715 .079 .030 .030 48 35 " #18 108 3&4 8 .250 .715 .080 .040 .040 48 35 " #20 40 3&4 8 .500 .079 .029 .029 24 65 " #18 66 3&4 8&10 .500 .097 .039 .039 24 60 " #16 82 3&4 8&10 .500 .096 .050 .050 24 63 " #13 140 3&4 8&10 .500 .107 .070 .070 24 52 " #16 51 3&4 8&10 .923 .111 .048 .048 13 74 " #14 63 3&4 8&10 .923 .105 .061 .061 13 74 " #13 75 3&4 8,10&12 .923 .106 .070 .070 13 74 " #10 (13 ga.) 114 4 8 .923 .160 .070 .070 13 68 " # 9 (10 ga.)

9 171 3&4 8,10&12 .923 .165 .120 .120 13 631" #16 41 3&4 8 .098 .050 .050 12 781 " #16 (Lt.) 29 4 8 .093 .050 .050 9 831 " #16 38 3&4 8 .119 .048 .048 9 831 " #14 46 3&4 8 .134 .060 .060 9 801 " #13 57 3&4 8&10 .116 .070 .070 9 801 " #9 (10 ga.) 114 3&4-4 8&10,12 .158 .110 .110 9 75 Above material conforms to military specification MIL-M-17194C Type II Class 1 Weights, gauges, dimensions, and sizes listed above are Steel FLATTENED EXPANDED METAL " THROUGH 1-1/2" DIAMOND DESIGNS StyleSWDS trand Size(inches)%OpenAreaOpening Size(inches) LWDL engthLWDW idthSWDD esign Size(inches)LWDSWOS tandardSheet Size (ft.)SWDW idthThick-nessLWOO verallThick-ness(in.)

10 100Sq. ofDesigns per on next page Size (ft)STAINLESS Steel TYPE 304 EXPANDED METAL SHEETSA bove material conforms to EMMA 557-99 Style STANDARD(%)OpenAreaThick-nessDesign Size(inches)Opening Size(inches)lbs per100 Sq. ft. " #20 50 4 8 .500 .437 .097 .080 .037 .164 24 70 " #18 73 4 8 .500 .438 .938 .087 .050 .164 24 77 " #16 91 4 8 .500 .438 .938 .087 .062 .164 24 70 " #13 187 4 8 .500 .313 .875 .120 .093 .225 24 58 " #18 48 4 8 .923 .813 .106 .050 .200 13 89 " #16 60 4 8.