Pioneer Pipe - Russel Metals, Inc.

glossary
Glossary of Terms (cont.)
PLATE - Carbon steel plate comprise that group of flat rolled
finished steel products within the following size limitation:
.0180 in. or thicker, over 48 in. wide
.0230 in. or thicker, over 6 in. wide
7.53 lb./ sq. ft. or heavier, over 48 in. wide
9.62 lb./ sq. ft. or heavier, over 6 in. wide
PREHEATING - (1) A general term used to describe heating
applied as a preliminary to some further thermal or mechanical
treatment. (2) A term applied specifically to tool steel to describe
a process in which the steel is heated slowly and uniformly to a
temperature below the hardening temperature and is then transferred
to a furnace in which the temperature is substantially above the
preheating temperature.
PSI - Pounds per square inch gage.
PSL - Product Specification Level
QUENCHING - A process of rapid cooling from an elevated
temperature by contact with liquids, gases or solids.
RANDOM LENGTHS - Lengths can be specified, but, if random
lengths are permitted, cutters have a spread from 2 to 5 feet,
depending on ordered length and size.
SCALE - An oxide of iron which forms on the surface of hot
steel. Sometimes it forms in large sheets which fall off when the
steel is rolled.
SCARFING - Cutting surface areas of metal objects, ordinarily by
using a gas touch. The operation permits surface defects to be cut
from ingots, billets, or the edges of plate that is to be beveled for butt
welding.
SCHEDULE NUMBERS - ANSI numbers assigned to pipe
depending upon wall thickness (Becoming obsolete).
SEAM ANNEALED - Heating a weld seam to a temperature
slightly below the point at which grain structure is effected (known as
the critical temperature), followed by cooling in still air. This reduces
weld hardness without changing the grain structure.
SKELP - A plate of steel or wrought iron from which pipe or tubing
is made by rolling the skelp into shape longitudinally and welding or riveting
the edges together.
SLAB - A semifinished block of steel cut from a rolled ingot, with its
width at least twice its thickness. It differs from a bloom which is
square or nearly so. Slabs are the product of a slabbing mill, or a
blooming mill.
STRESS RELIEVING - A process of reducing residual
stresses in a metal object by heating the object to a suitable temperature
and holding for a sufficient time, and cooling slowly. This treatment
may be applied to relative stresses induced by casting, quenching,
normalizing, machining, cold working or welding.
STRETCH REDUCTION - Property of absorbing considerable
energy before fracture; usually represented by the area under a
stress-strain curve, and therefore involving both ductility and strength.
TBE - Threaded Both Ends.
T&C - Threaded and Coupled.
TENSILE STRENGTH - The value obtained by dividing the
maximum load observed during tensile straining until breakage occurs
by the specimen cross-sectional area before straining. Also called “ultimate
strength”.
TOUGHNESS - Property of absorbing considerable energy
before fracture; usually represented by the area under a stress-strain
curve, and therefore involving both ductility and strength.
TURN - A work shift in the mill of usually 8 hours duration.
ULTRASONIC - A nondestructive testing method of detecting,
locating, and measuring both surface and subsurface defects in metals
with the use of high frequency sound.
VICTAULIC - Registered trademark of Victaulic Corp. of
American.
VIC-VICTAULIC Groove.
WALL-HEAVY - Wall thickness more than the specified minimum
wall thickness called for by the pipe standard designated in the
purchase order specifications.
WALL-THIN - Wall thickness less than the specified minimum
wall thickness called for by the pipe standard designated in the purchase
order specifications.
YIELD STRENGTH - The stress at which a material exhibits
a specified deviation from proportionality of stress and strain. An offset
of 0.2% is used for many metals including steel. API 5L and API 5LX
state that the yield strength shall be the tensile stress required to produce
a total elongation of 0.5% of the gauge length as determined by
an extensometer or by multiplying dividers. Usually expressed in
pounds per square inch.
SMLS - Seamless.
SRL - Single Random Lengths-(16-22 ft. for standard weight ASTM
pipe or as defined in specifications).
STENCIL - Paint spray identification placed on pipe.
Specification, size, wall, grade, test pressure, method of manufacture
and normal mill characters and mill identification are usually included;
however, detail varies by specification. “Made in USA” is included.
Legal Notice: This brochure is intended for general information only. Pioneer makes no warranty or representation, expressed or implied, of any kind with respect to the information
contained herein and shall in no event assume liability or responsibility for any loss, damage or injury whatsoever resulting from the use of this information. In all cases, the customer
is therefore requested to use this information at its own risk and responsibility.
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