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Material Guide



HOT ROLLED SHEET & COIL

LOW CARBON, COMMERCIAL QUALITY A low cost steel sheet, soft enough to bend flat on itself in any direction without cracking, ductile enough for shallow drawing. Carbon is .10 max. for improved welding and forming. Surface has normal mill oxide. Conforms to ASTM A-569. Used for tanks, barrels, farm implements and other applications where surface finish is not critical.

PICKLED AND OILED Acid pickling removes mill oxide, improving surface appearance, uniformity and finishing quality. Paint and enamel adhere well after cleaning. Same properties and forming characteristics as commercial quality but less wear on tooling. Conforms to ASTM A-569. Typical applications: auto and truck parts, farm implements, tanks, stamped and roll formed parts, formed sections.

DRAWING QUALITY Used in fabricating parts where drawing or severe forming may be involved and surface appearance is not of primary importance. Conforms to ASTM A-621. Typical application: auto and truck parts, stamped parts and roll formed sections.

.40/.50 CARBON High carbon content increases yield strength about 50% over low carbon. Abrasion resistance is also improved compared with low carbon. Heat treatable for still greater strength and hardness. Far less formable and weldable than low carbon. Used for scrapers, blades, tools and other applications requiring a strong, moderate cost sheet.

ABRASION RESISTING Medium carbon content plus higher manganese greatly improves resistance to abrasion. Typically used for scrapers, liners, chutes and conveyors. Outlasts low carbon steel by two to ten times. Moderate formability.

HIGH STRENGTH/LOW ALLOY SHEETS

Have much higher minimum yield strengths, improved formability, weldability and/or atmospheric corrosion resistance than ordinary low carbon commercial quality sheets. Lend themselves to applications where weight reduction is a main factor. Extra strength permits weight savings up to 25%. Produced to minimum mechanical requirements. Available in three types:

CONVENTIONAL TYPE ASTM A-607 Lowest cost HSLA steels made to specific minimum yield strengths where atmospheric corrosion resistance is not a requirement. Good formability and weldability. Typical applications: transmission towers, formed utility poles, autoparts, truck trailers.

IMPROVED ATMOSPHERIC CORROSION RESIST-
ANCE TYPE ASTM A-606 Two to four times more resistant to atmospheric corrosion than low carbon steel. Unpainted, Cor-Ten has tightly adherent oxide surface which stops further oxidation. Excellent weldability and formability.

IMPROVED FORMABILITY TYPE ASTM A-715 (HI-
FORM)
Maximum formability with improved toughness and fatigue resistance. Good weldability. Available with minimum yield ranging from 50,000 psi to 80,000 psi. Used when fabrication involves difficult forming or tight radii bending.

MINIMUM MECHANICAL

PROPERTIES

Yield Point psi

Tensile Strength psi 

Cold Formability to .180

A569 (Low Carbon Comm. Qual).

38,000*

52,000*

1T

A607 Gr 45 - INX 45

45,000

60,000

1T

A607 Gr 50 - INX 50/EX-TEN 50

50,000

65,000

1½ T

A606 Type 4 (Cor-Ten)

50,000

70,000

2T**

A715 (HI-FORM) Grade 50

50,000

60,000

½ T

A715 (HI-FORM) Grade 80

80,000

90,000

1½ T

*Typical  **Thickness over .0625

COLD ROLLED SHEET & COIL

LOW CARBON COMMERCIAL QUALITY Closer thickness tolerances and better surface than pickled and oiled. The matte finish is ideal for paints, enamels and lacquers. Soft enough to bend flat on itself in any direction without cracking ductile enough for many moderate drawing applications. Can be electroplated. Light oil protects surface from rust. Conforms to ASTM A-366. Maximum carbon content .10 for improved welding and forming. End uses: refrigerators, ranges, washing machines, auto and truck bodies, signs, panels, shelving, furniture and stamped parts.

IN/TEK The finest surface and flattest cold rolled sheet available in the market today. Produced to one quarter the usual thickness tolerance, it is superior in flatness and surface. A flash coating of nickel allows better bonding of phosphate for a superior painted finish. Pre-packaged in 3,000 Ib. bundles to protect the world class surface.

SPECIAL KILLED (Drawing Quality) A sheet with maximum uniformity used for severe drawing or forming operations. Has maximum ductility plus freedom from age hardening and fluting. Conforms to ASTM A-620.

SPECIAL PROTOTYPE QUALITY (Special Killed-Draw-
ing Quality)
A special killed drawing quality sheet made within closely restricted thickness tolerances. Used for prototype die work and for other deep drawing requirements when closer than commercial tolerances are required. (Also available in HR P/O and galvanized.)

PLATING QUALITY Two finishes suitable for most plating applications: Commercial Bright, rolled with ground and polished rolls, has a relatively bright finish; and Extra Light Matte, produced with lightly blasted rolls, has a slightly duller finish than Commercial Bright. Base metal conforms to ASTM A-366.

EMBOSSED PATTERN Has a leather grain textured surface on one side which hides dings, dents and scratches that can occur during production. Can reduce rejection rates by as much as 70% or more. End uses: appliance wrappers, instrument panels, office equipment, shelving, etc. Base metal conforms to ASTM A-366.

STRETCHER LEVELED STANDARD OF FLATNESS A commercial quality matte finish sheet, further processed to improve flatness. Used for panel work where little forming is done and finished product must be flat and free from waves. Widely used in the manufacture of desk and table tops, truck body panels, partitions, templates and office furniture. Conforms to ASTM A-366.

GALVANIZED SHEET & COIL

The coating weight of hot dipped galvanized sheets conforms to ASTM A924 (previously A525). Electro-galvanized conforms to ASTM A-591. The end use should determine the type of coated sheetandsurfaceconditionrequired.

GALVANIZED sheets are continuously hot dip coated with a durable protective coating of zinc. Can be formed without flaking or peeling. Stamping, cold drawing, double seaming and brake or roll forming will not impair their protective qualities. Can be welded and soldered. Thicknesses 16 ga. and lighter are lockforming quality. Thicknesses 14 ga. and heavier are commercial quality. All conform to ASTM A924 (previously A525). Coatings are G90 (minimum .90 oz. per foot) or G60 (light commercial).

HOT DIPPED GALVANIZED is also available on special order in extra heavy coatings, differentially coated, extra smooth surface, coated one side only, and with various spangle sizes.

GALVANNEALED sheets are heat treated after coating to produce zinc-iron alloy and eliminate the spangle. Can be painted without further surface preparation except for normal cleaning. May be subject to bending and simple forming without impairing its payability or corrosion resistance. Particularly suited for sign boards, metal doors and partitions, truck and trailer bodies, heater and furnace parts, etc. The coating weight is A60 or A40.

GALVALUME is a corrosion resistant sheet, continuously hot dipped coated with an aluminum zinc alloy. For certain applications it offers a substantial increase in corrosion resistance over G90 galvanized sheet. It can be readily formed, welded and soldered. End uses: appliance and automotive parts, metal buildings and agricultural parts. Conforms to ASTM A-792 AZ 50 coating.

ELECTRO-GALVANIZED BONDERIZED sheets are cold rolled steel sheets zinc coated by electrolytic deposition and conform to A-591. Should be painted if subject to outdoor exposure. The coating has a uniform dull gray matte appearance without the spangles normally present on hot dipped galvanized. The surface has been phosphate treated for immediate paintability. Can also be formed, rolled or stamped without flaking, powdering, peeling or cracking. Electrogalvanized sheets have same gauge thickness as cold rolled sheets. Particularly suited for cabinets, signs, light fixtures, etc., where an excellent finish is required.

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