PLATE
COMMERCIAL AND SPECIFICATION GRADES Commercial
Commercial and Specification Grade Plates are stocked to
meet a variety of end use requirements that range from the most unsophisticated
storage bin to such highly critical applications as Cryogenic Pressure Vessels.

LOW CARBON PLATE

is
manufactured to three separate carbon ranges that relate to thickness and end
use requirements.  Plates ¾” and lighter are produced to the lowest carbon range
(.10-.20) for maximum cold forming and welding properties.  Sizes ¾”- 1-½”  the
carbon range is (.15-.25)  which gives improved machining, while retaining its
forming and welding properties. Plates over 1- ½” have carbon increasing to
(.20-.33). This is a killed steel that provides the best combination of
strength, weldability, and structural soundness.

MEDIUM CARBON PLATE

in
the (.40-.50) carbon range is silicon killed and higher carbon for improved
strength.  Lighter and medium thickness can also be heat treated for greater
strength.  Machinability is good, but forming and welding properties are
limited.

ASTM A-36 PLATE

is a
structural quality product designed for use in welded, bolted, or riveted
fabrications such as oil rigs, buildings and bridges.  Produced with a min.
yield of 36,000 psi, A36 plate can be used in the construction of a variety of
lightweight structures and equipment where good welding properties are
important.

ASTM A514B (T-1 & TYPE A REG)
STRUCTUAL QUALITY

is a quenched and tempered high strength alloy steel
designed for construction type applications and produced to minimum mechanical
properties.  T-1 plate provides subzero temperatures, and weldability with
minimal preheat requirements.  These items stocked in 3/16” through 1- ½”
thick.

ABRASION
RESISTENT GRADES

Abrasion
resisting is produced to a special carbon-manganese specification, developed
specifically foe applications requiring superior wear resistance, and will
usually outlast ordinary steel grades by a wide margin. AR360 is a medium
strength and hardness; quenched and tempered plate, of most price, and excellent
wear properties. AR400 is a high hardness high strength quenched and tempered
chrome-moly, boron treated alloy plate with good resistance to atmospheric
corrosion and impact abrasion.

PRESSURE VESSEL QUALITY

Plate is produced to tightly control ASTM standards in order to provide a
superior grade of carbon steel plate designed specifically for pressure vessel
and boiler applications but also suited to a variety of less demanding
commercial applications. PVQ plate is subject to a specified series of tests to
insure conformance to standards.

ASTM A285 (GRADE C)

in firebox flange quality designed for fusion welded boilers and pressure
vessels where moderate strength and good forming is required.

ASTM A515 (GRADE 70)

has greater strength than
A285 and intended for intermediate and high temperature boilers and pressure
vessels.  It is a silicon killed, coarse-grained steel that requires careful
welding techniques.

ASTM A516 (GRADE 70)

is similar to A55 but is intended to lower temperature applications.  It is also
silicon killed, but has a finer grain and improved notched toughness.  Stocked
in an as rolled condition and charpy tested.

ASTM A572 (GRADE 50) INX-EXTEN

is available with a
50,000 psi min strength level.  It is moderately priced and offers high strength
in combination with good formability and weldability.  Atmospheric corrosion
resistance is about equal to plain carbon steel.  Conform to SAE J410 and Grade
950X.

PLATE COILS

Low carbon, black, and pickled and oiled coils are available for 3/16” to ½”
thick, up to 84” wide for precision roller leveling and cutting to standard and
special lengths up to 480”. Ultrasonic Testing and ABS certification is
available upon request.

Accepted trade practice
provides for invoicing of all Plate product based on the theoretical weight of
the ordered size, using a density of .2836 pound per cubic inch rounded to the
nearest full pound per piece.

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