When it comes to metals, we're heavyweights.

Stock Lengths 20', 30', & 40' as indicated

Stocked in Lengths up to 60'.

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Stocked in Lengths up to 60'.

Stocked in Lengths up to 60'.

Stock Lengths 20' and 30'.

Stocked in Lengths up to 60'.

Stocked in Lengths up to 60'.

Expanded Metal is available in the "standard" pattern, where the strands and bonds are set at a sharp angle to the plane of the sheet. It is also available in the “flattened” pattern, where the material has been cold-rolled to bring the strands and bonds into the same plane. Flattened Expanded Metal is especially suited to welding because of its flat surface.

Expanded Metal offers the advantages of savings in weight and metal, free passage of light and air, and a decorative or ornamental effect. Structural applications include door panels, open partitions, window guards, enclosures, etc. Decorative applications include grilles, screens, panels, backgrounds, etc.

The width of the sheet is measured in the direction of the short dimension of the diamond. The length of the sheet is measured in the direction of the long dimension of the diamond. For additional information on applications, properties, and fabricating procedures, ask for our special pamphlet on Expanded Metal.

LEGEND

SWD—"Short way of diamond."
LWD—"Long way of diamond."
SWO—"Short way of opening."
LWO—"Long way of opening."
Strand Thickness—Equal to the thickness of the sheet of metal used.
Strand width—Amount of metal of a given thickness in one strand.

Expanded Metal sheets are also available in STAINLESS STEEL, ALUMINUM, and other metals. Information on request.

*Style Designation—The first figure indicates the approximate width, the short way of the diamond, measuring from center to center of the bonds. Second figure indicates the approximate gauge of the sheet before expanding.

*Style Designation—The first figure indicates the approximate width, the short way of the diamond, measuring from center to center of the bonds. Second figure indicates the approximate gauge of the sheet before expanding. 

Information on request.

Expanded Metal Gratings are produced from heavy steel plate and provide an economical open flooring with the advantage of strength, durability, and light weight. Unlike solid flooring, Expanded Metal Gratings do not block light and air. Dirt, grease, snow, and mud cannot collect on the walking surface. Floors made from these gratings are attractive in appearance, and their non-slip quality is an important safety factor. Various styles are available, designed to support walking loads on clear spans up to five feet – longer with reinforcement. For further information, ask for our special pamphlet.

* Measured center to center of bonds.

Gratings, Decking, Grilles, and Stair Treads

We represent various manufacturers of grating products which have been designed to fill many functional and ornamental architectural requirements. Such material offers the benefits of minimum weight, maximum carrying capacity, ventilation, sanitation, light admission, non-skid safety, and self-cleaning. We will be glad to furnish further information upon request.

Stock Sizes

16 Ga. to 1/8"—As indicated below.

3/16” to 3/4"—Thickness and Widths as indicated below. Lengths up to 24’.

Thickness refers to body of plate, not including raised portion.

Wall Thicknesses and Weights per foot

Sheared—Flame Cut

Color Marking: Corner striped blue

Hot Rolled Carbon Steel Plates are produced from basic oxygen process steel. The designations applied to this material are based upon the types of mills used to produce the plates and resulting edge conditions. SHEARED PLATES have been rolled between horizontal rolls, with edges and ends later trimmed by shearing to obtain rectangular shape. In the heavier thicknesses (generally over 1 1/2"), the trimming is accomplished by flame cutting—hence the designation FLAME CUT PLATES. 

Specifications

When material over 1 1/2" thick is used as bearing plates in structures other than bridges, ASTM A 36 applies. 

Analysis (ASTM A36)

Applications—Storage tanks, storage bins, welded pipe, bridge construction, freight and passenger cars, barges, tankers, machinery construction, mining cars and equipment, bearing plates for buildings, and other structural applications and various parts obtained by flame cutting with our modern shape cutting facilities. 

Mechanical Properties (Typical)

* Subject to reduction for thicknesses under 5/16". 

Machinability—Hot Rolled Carbon Plates have a machinability rating of approximately 72%, based on 1212 as 100%, with average surface cutting speed of 120 feet per minute. When considerable machining or drilling is to be performed, we recommend the use of Free-Cutting Plates.

Weldability—These plates are easily welded by all the welding processes and the resultant welds and joints are of extremely high quality. The grade of welding rod to be used depends on the thickness of section, design, service requirements, etc.

Stock Sizes

Sheared: Stocked in thicknesses from 3/16" to 1 1/2", widths up to 120", and lengths up to 480".

Flame cut: Stocked in thicknesses from 1 5/8" to 16". Maximum widths vary from 72" to 96", depending on thickness. Stock lengths are up to 360".

J-20 Carbon Plate
J-45 Carbon Plate

Color Marking:

• J-20—Corner striped Black
• J-45—Corner striped White

J-20 and J-45 free-cutting carbon steel plates are made to EMJ’s own specifications in order to insure free-machining steel of uniformly high quality. Because of their outstanding machinability and excellent finishing characteristics, substantial savings are effected through use of these materials.

J-20 is a low-carbon analyses that may be carburized and hardened using the same treatments employed with ordinary low-carbon steels.

J-45 is a high-carbon analyses that may be hardened satisfactorily by direct-heating and quenching, flame hardening, or induction hardening. 

Analysis (Typical)

Applications—The low carbon grades are used for mechanical rubber molds, V-belt mold rings, gears, cams, sprockets, jigs and fixtures, templates, etc. The high carbon grades are used for rubber molds, short-run blanking and trimming dies, slides, racks, machine ways, spinning chucks, etc. 

Mechanical Properties (Typical)—The following values are average and may be considered as representative of the grade:

In thicker sections, properties are somewhat lower. 

Machinability—These steels are machinable at speeds up to 40% higher than other steels with comparable carbon content. J-20 is machined at cutting speeds up to 170 surface feet per minute. J-45 is machined at cutting speeds up to 145 surface feet per minute. Flame cutting of the high carbon grades produces a hardening effect on the cut edge which may be minimized by stress relieving.

Weldability—These free machining steels are not generally recommended for welding. They can be welded using the proper techniques and electrodes. Low-hydrogen electrodes are recommended to avoid excessive porosity and under-bead cracking that is likely to occur with the use of cellulose-covered rods. American Welding Society Classes EXX16 or EXX18 should be used with the tensile strength class determined by the strength desired. Current control is critical, and amperage should be regulated to obtain adequate fluidity of the weld metal and yet minimize dilution of the weld metal by the parent metal. The high carbon grades should be preheated to 350o-450o prior to welding and stress-relieved or normalized (see below) immediately after welding.

Hardening—J-20 responds to any of the standard carburizing and subsequent hardening methods used for such grades as 1018. J-45 responds to any of the standard treatments used for such grades as 1144.

"J-20" and "J-45" are trademarks of Earle M. Jorgensen Co.

Stock Sizes

These plates are stocked in thicknesses from 1/4" to 6". Most thicknesses are carried in widths up to 96" and lengths up to 240".

Sheared—Flame Cut
UNS G10450

Color Marking: 1045 As-Rolled—Corner striped Red

This high carbon grade possesses higher strength with good toughness than is found in low carbon plate. It has low hardenability which means that it can be fully hardened in thin sections only with a drastic quench. In heavier sections, partial hardening increases strength substantially, and flame or induction hardening pro- duces high surface hardness. 

1045 has good wear and abrasion resistance which can be further improved by heat treatment. 

Analysis

Applications—The 1045 grade is generally used for gears, pinions, brake discs, wear plates, base plates, etc.

Mechanical Properties (Typical)—The following values are average and may be considered as representative of the grade:

Machinability—1045 As-Rolled—average cutting speed is 95 surface feet per minute. This is not free-machining steel and when considerable machining is to be performed, J-45 are the free-machining steel equivalents to 1045.

Weldability—High Carbon Plates may be welded with proper precautions. With thin sections and a flexible design, gas or arc welding may be used without preheating; but in joints over 3/8” thick preheating is necessary. To develop equivalent strength in a weld, a low alloy filler is recommended. Stress relieving is also recommended. The grade of welding rod to be used depends on the thickness of section, design, service requirements, etc. 

Hardening—This Grade is essentially a water-hardening steel, but may be quenched in oil.

Stock Sizes

High Carbon Plates are stocked in thicknesses from 3/16" to 14", widths up to 96", and lengths up to 30 feet. 

These are hot rolled carbon steel plates produced by the basic oxygen process. They are high quality products which meet ASTM and ASME specifications, as well as those of the Hartford Steam Boiler Inspection and Insurance Co. They have been rigidly inspected and tested to insure quality satisfactory for pressure vessels.

Specifications and Color Marking

Analysis

Applications

ASTM A 285 covers plates of low and intermediate tensile strengths for pressure vessels. The maximum thickness of plates produced to this specification is 2".

ASTM A 515 covers a course grain carbon silicon steel intended for intermediate or high temperature service in boilers and other pressure vessels.

ASTM A 516 covers a fine grain carbon manganese silicon steel intended for service in pressure vessels at temperatures where improved notch toughness is important.

Material for all three specifications is intended for fusion welding where the welding technique is of prime importance with welding procedure accomplished under approved methods.

Mechanical Properties

Subject to modification for thicknesses under 5/16" and over 3/4".

 Machinability—Although not considered free-machining, these grades can be surface machined or drilled readily.

Weldability—These grades are easily welded by all welding processes although they are intended for fusion welding. The resultant welds are of high quality, when the welding procedure is accomplished under approved methods.

Stock Sizes

Pressure Vessel Quality Plates are stocked in thicknesses from 3/16" to 8", widths up to 96", and lengths up to 336".

ASTM A 768

Floor Plate provides maximum skid resistance regardless of how the plate is laid or the angle from which it is approached. Patterns are continuous whether adjoining plates are laid end to end, side to side, or side to end. Cutting waste is reduced to a minimum. Cleaning is easily accomplished with a hose, brush, or mop, with rapid and complete drainage. 

Analysis

Applications—Running board steps, floors, walkways, platforms, cover plates, stair treads, hatch covers, trench covers, truck runways, conveyors, etc.

Mechanical Properties—Floor Plates are not normally used as main stress-carrying members and are seldom specified to tensile requirement. However, properties are approximately as follows: