ISO 11960:2020 石油および天然ガス産業—井戸のケーシングまたはチューブとして使用するための鋼管 | ページ 6

3.1.1

accessory material

seamless casing (3.1.5) or tubing, or seamless thick-walled tubes or mechanical tubes, or bar stock or hot forgings used for the manufacture of accessories

3.1.2

API threads

threads as specified in API Spec 5B

3.1.3

arc burn

localized point of surface melting caused by arcing between an electrode or ground (earth) and the product surface

Note 1 to entry: Contact marks, which are intermittent marks adjacent to the weld line of EW pipe resulting from electrical contact between the electrodes supplying the welding current and the pipe surface, or contact marks resulting from the use of a spectrometer for the detection of steel chemical composition, are not arc burns.

3.1.4

carload

quantity of product loaded on a railway car for shipment from the product-making facilities

3.1.5

casing

pipe run from the surface and intended to line the walls of a drilled well

3.1.6

connection

threaded assembly of tubular components

3.1.7

controlled cooling

cooling from an elevated temperature in a pre-determined manner to avoid hardening, cracking or internal damage, or to produce a desired microstructure or mechanical properties

3.1.8

coupling

internally threaded cylinder for joining two lengths of threaded pipe

3.1.9

coupling blank

unthreaded material used to produce an individual coupling (3.1.8)

3.1.10

coupling material

thick-walled seamless tube used to manufacture coupling blanks (3.1.9)

Note 1 to entry: The main difference between coupling material and coupling stock is that coupling material has no mandatory NDE inspection requirements (see 10.15). See Clause 9 for mandatory NDE requirements for finished couplings.

3.1.11

coupling stock

coupling material that meets the coupling stock requirements

3.1.12

defect

imperfection of sufficient magnitude to warrant rejection of the product based on criteria defined document

3.1.13

electric-welded pipe

pipe having one longitudinal seam formed by electric-resistance or electric-induction welding, without the addition of filler metal, wherein the edges to be welded are mechanically pressed together and the heat for welding is generated by the resistance to flow of electric current

3.1.14

full-body

complete cross-section of the product

3.1.15

full-length

complete length of the product (end-to-end)

3.1.16

heat

metal produced by a single cycle of a batch melting process

3.1.17

heat analysis

chemical analysis representative of a heat as reported by the metal producer

3.1.18

imperfection

discontinuity in the product wall or on the product surface that can be detected by a specific NDE method

Note 1 to entry: See NDE method included in Table C.42 or Table E.42.

3.1.19

inspection

process of measuring, examining, testing, gauging or otherwise comparing a unit of product with the applicable requirements

3.1.20

inspection lot

lot

definite quantity of product manufactured under conditions that are considered uniform for the attribute to be inspected

3.1.21

inspection lot sample

one or more units of product selected from an inspection lot (3.1.20) to represent that inspection lot

3.1.22

lot size

inspection lot size

number of units of product in an inspection lot (3.1.20)

3.1.23

interrupted quenching

quenching in which the product being quenched is removed from the quenching medium while the product is at a temperature substantially higher than that of the quenching medium

3.1.24

label 1

dimensionless designation for the size or specified outside diameter that can be used when ordering pipe

3.1.25

label 2

dimensionless designation for the mass per unit length that can be used when ordering pipe

3.1.26

length

piece of pipe that can be plain-end, threaded, or threaded and coupled, that is in accordance with specific length requirements

Note 1 to entry: See requirements in 8.6, Table C.27 or Table E.27.

3.1.27

linear imperfection

imperfection which includes, but is not limited to, seams, laps, cracks, plug scores, cuts and gouges

Note 1 to entry: See API Std 5T1.

3.1.28

manufacturer

one or more of the following, depending on the context: pipe mill; processor; threader; coupling manufacturer, pup-joint manufacturer; accessory manufacturer

Note 1 to entry: See Clause 14.

3.1.29

non-linear imperfection

imperfection which includes, but is not limited to, pits and round-bottom die stamping

Note 1 to entry: See API Std 5T1.

3.1.30

pipe

casing (3.1.5) , tubing and pup joints as a group

3.1.31

pipe mill

firm, company or corporation that operates pipe-making facilities

3.1.32

plain-end pipe

pipe, either upset or non-upset, furnished without threads

3.1.33

processor

firm, company or corporation that operates facilities capable of heat-treating products made by a pipe mill

3.1.34

product

pipe, coupling (3.1.8) , coupling stock, coupling material, coupling blank (3.1.9) or accessory material (3.1.1) , either individually or collectively as applicable

3.1.35

product test block

test block removed from the product, the tensile test specimen or through-wall hardness test ring

3.1.36

pup joint

casing (3.1.5) or tubing of length shorter than Range 1

Note 1 to entry: Range 1 is specified in Table C.27 or Table E.27.

3.1.37

purchaser

party responsible for both the definition of requirements for a product order and for payment for that order

3.1.38

quench crack

crack in steel resulting from stresses produced during the transformation from austenite to martensite

Note 1 to entry: This transformation is accompanied by an increase in volume.

3.1.39

seamless pipe

wrought steel tubular product made without a weld seam

Note 1 to entry: To produce the desired shape, dimensions and properties, it is manufactured by hot-working steel, and if necessary, by subsequently cold-working or heat-treating, or a combination of these operations.

3.1.40

skelp

hot-rolled steel strip used for manufacturing EW pipe

3.1.41

special end-finish

threads with specific thread form and features, manufacturing specifications, dimensions, connection (3.1.6) make-up and performance properties

Note 1 to entry: The specificities of such threads are beyond the scope of this document.

3.1.42

standardized test block

test block, certified to a mean hardness number, used for the verification of the performance of hardness testing machines

3.1.43

thread protector

cap or insert used to protect threads and seals during handling, transportation and storage

3.1.44

tubing

pipe placed in a well to produce or inject fluids

3.1.45

upper critical temperature

ar₃

temperature at which austenite begins to transform to ferrite during cooling