THIN-WALLED PIPES AND FITTINGS
Statutory marking (such as electro-etching
) is feasible and will
be required for products with a vail thickn
inch EXCEPT (1) for pipes, tubes, and fit ess greater than .080
minimum diameter limits for narking speciftings which fall below
(2) for carbon steel tubing which can not ied below,
statutory method, and (3) high-alloy produclegibly be marked by a
by the importer at the time of entry to be ts which are certified
corrosive environments. These products mus for actual use in
legible method, such as paint stencilling, t be marked by another
or containers of products meeting the sma or tagging of bundles
ll-diameter standards
set forth below*
SMALL-DIAMETER PIPES AND FITTINGS
Fittings not less than one-fourth inch inn
not less than 1.9 inches inner diameter, er diameter, and pipes
the statutory methods EXCEPT for thin-wallmust be marked by one of
and products which are certified by the ed products (see above)
importer at the time of
entry to be for actual use in corrosive env
products must be marked by tagging or pai ironments. These
nt stencilling
FITTINGS
Marking by one of the statutory methods
is required EXCEPT for:
(1) Fittings which meet American Petroleum
Institute (API)
specifications SAC, SAX, 5AQ or higher.
(2) High-alloy fittings ordered to NASA or
specifications which proscibe marking by military
any of the statutory
methods.
(3) Small galvanized iron fittings of the
(dimensions stated are nominal diameters): following types
(a) Elbows 90 degree - one-eighth and one
-fourth inch
(b) Elbows 45 degrees - one-eighth and one
-fourth inch
(c) Street elbows 90 degrees - one-eighth
and one-fourth inch
(d) Street elbows 45 degrees - one-eighth
and one-fourth inch
(e) Tees - one-eighth and one-fourth inch
(f) Crosses - one-eighth and one-fourth inc
h
(g) Couplings (sockets) - one-eighth and one-fourth inc
h
(h) Locknuts - one-eighth, one-fourth, three-eighths,
and onehalf inch
(i) Bushings - one-fourth by one-eighth, three-eighths
eighth, three-eighths by one-fourth, one-by onehalf by one-eighth, one-half by one-fourth,
one-half by three-eighths inch
(j) Onions - one-eighth, one-fourth, and three-eighths
inch
(k) Caps - one-eighth, one-fourth, three-eighths, and
one-half
inch
(1) Plugs - one-half, three-fourths, and one inch
(m) Reducing elbows - one-fourth by one-eighth inch
(n) Reducing tees - one-fourth by one-eighth inch
(o) Reducing coupling - one-fourth by one-eighth inch
(4) Spun iron fittings with a Brinell hardness number
in excess
of 5 (five).
ANY REQUEST FOR AN EXEMPTION FROM THE STATUTORY
REQUIREMENTS FOR FITTINGS WHICH DO NOT MEET THE MARKING
SPECIFICATIONS MUST BE SUBMITTED IN WRITING TO ABOVE
COMMISSIONER (COMMERCIAL OPERATIONS) AT CUSTOM THE ASSISTANT
S HEADQUARTERS.
OIL COUNTRY TUBULAR GOODS (OCTG)
Marking by one of the statutory methods is required EXC
EPT for:
(1) OCTG products which meet API standards SAC, SAX, SAQ
and
higher.
(2) Solution-annealed austenitic ferritic duplex stainl
ess steel.
(3) "Green* tubes smaller than two and seven-eighths inc
hes outer
diameter (which are generally redrawn).
OCTG products must be marked by another legibl
e method, such as
paint Stencilling. ANY REQUEST FOR AN EXEMPTION
ABOVE MUST BE SUBMITTED IN WRITING TO THE ASSIST NOT SPECIFIED
(COMMERCIAL OPERATIONS) AT CUSTOMS HEADQUARTERS ANT COMMISSIONER
.
STRUCTURAL PIPE
Structural pipe must be narked by one of the sta
unless it meets API standards 2B and 2B, in whichtutory methods
case it must be
marked by paint stencilling.
HOLLOW STRUCTURAL SECTIONS
Hollow structural sections must be marked by
methods. ANY REQUEST FOR AN EXEMPTION MUST one of the statutory
WRITING TO THE ASSISTANT COMMISSIONER (COMMEBE SUBMITTED IN
RCIAL OPERATIONS) AT
CUSTOMS HEADQUARTERS.
PRESSURE TUBING
Pressure tubing must be marked by one of the sta
unless (1) it meets ASTM specification A-161, A-1tutory methods
A-192 r A-199, A-200, A-209, A-210, A-213, A-214, 78, A-179,
A-250, A-333, A-334, A-423, A-557, or (2) the impA-226, A-249,
on entry that it is for actual use in an applic orter certifies
ation or
environment in which marking by one of the statut
would substantially diminish or destroy the uti ory methods
tubing. Pressure tubing exempted on one of thelity of the
from marking by any of the statutory methods musse two grounds
t be marked by
paint stencilling.
ORNAMENTAL PIPES AND TUBES
Ornamental products may be exempted from the sta
methods provided each piece is separately tagged tutory marking
country of origin. With repect to these produc to indicate
for which tagging is allowed as an alternative ts and any others
the tag used must be durable and must be securemarking method,
ly affixed to the
product.
LINE PIPE
Marking by one of the statutory methods is
required EXCEPT for:
(1) Ultra high-strength line pipe meeting API
specification 5L
grades X-42 and higher.
(2) Pipe meeting API specification 5LU
These products must be marked by paint ste
ncilling.
ANY REQUEST FOR AN EXEMPTION OTHER
THAN FOR PRODUCTS SPECIFIED
ABOVE MUST BE SUBMITTED IN WRI
TING TO THE ASSISTANT COMMISSIO
NER
(COMMERCIAL OPERATIONS) AT CUSTOMS HEA
DQUARTERS.
MECHANICAL TUBING
Mechanical tubing must be marked by one of
unless (1) it meets American Society for Testhe statutory methods
(ASTM) specification A-511 r A-512, A-513, A-5ting and Materials
A-789, or (2) the importer certifies at the 19, A-554, A-787, or
the tubing will actually be used in an app time of entry that
lication or environment
in which marking by a statutory method would
diminish or destroy the utility of the tub substantially
ing. Mechanical tubing
exempted on one of these grounds from markin
method must be marked by paint stencilling. g by any statutory
COATED PIPE
Galvanized, and plastic and vinyl-coated pip
paint stencilling unless it meets the require will be marked by
tagging. Marking of coated pipe by any of ements for marking by
is frequently illegible, and requiring it the statutory methods
would thwart the
purpose of the marking statute.
BEARING TUBES
;
Bearing tubes must be marked on the face by
one of the statutory
methods.
MOTHER" TUBES
So-called 'mother* tubes which are to be red
rawn (as proved by
the importer) must be mar
ked by paint stencilling.