Chapter notes
Notes.
1. In this Chapter and, in the case of Notes (d), (e) and
(f) throughout the nomenclature, the following
expressions have the meanings hereby assigned to them:
(a) Pig iron
Iron carbon alloys not usefully malleable,
containing more than 2% by weight of carbon and
which may contain by weight one or more other
elements within the following limits:
- not more than 10% of chromium
- not more than 6% of manganese
- not more than 3% of phosphorus
- not more than 8% of silicon
- total of not more than 10% of other elements.
(b) Spiegeleisen
Iron carbon alloys containing by weight more than
6% but not more than 30% of manganese and otherwise conforming to the specification at (a) above.
(c) Ferro alloys
Alloys in pigs, blocks, lumps or similar primary
forms, in forms obtained by continuous casting and
also in granular or powder forms, whether or not
agglomerated, commonly used as an additive in the
manufacture of other alloys or as de oxidants, de
sulphurising agents or for similar uses in ferrous
metallurgy and generally not usefully malleable,
containing by weight 4% or more of the element
iron and one or more of the following:
- more than 10% of chromium
- more than 30% of manganese
- more than 3% of phosphorus
- more than 8% of silicon
- a total of more than 10% of other elements,
excluding carbon, subject to a maximum content
of 10% in the case of copper.
(d) Steel
Ferrous materials other than those of heading 72.03
which (with the exception of certain types produced
in the form of castings) are usefully malleable and
which contain by weight 2% or less of carbon.
However, chromium steels may contain higher
proportions of carbon.
(e) Stainless steel
Alloy steels containing, by weight, 1.2% or less of
carbon and 10.5% or more of chromium, with or
without other elements.
(f) Other alloy steel
Steels not complying with the definition of
stainless steel and containing by weight one or
more of the following elements in the proportion
shown:
- 0.3% or more of aluminium
- 0.0008% or more of boron
- 0.3% or more of chromium
- 0.3% or more of cobalt
- 0.4% or more of copper
- 0.4% or more of lead
- 1.65% or more of manganese
- 0.08% or more of molybdenum
- 0.3% or more of nickel
- 0.06% or more of niobium
- 0.6% or more of silicon
- 0.05% or more of titanium
- 0.3% or more of tungsten (wolfram)
- 0.1% or more of vanadium
- 0.05% or more of zirconium
- 0.1% or more of other elements (except sulphur,
phosphorus, carbon and nitrogen), taken
separately.
(g) Remelting scrap ingots of iron or steel
Products roughly cast in the form of ingots without
feeder heads or hot tops, or of pigs, having
obvious surface faults and not complying with the
chemical composition of pig iron, spiegeleisen or
ferro alloys.
(h) Granules
Products of which less than 90% by weight passes
through a sieve with a mesh aperture of 1 mm and
of which 90% or more by weight passes through a
sieve with a mesh aperture of 5 mm.
(ij) Semi finished products
Continuous cast products of solid section, whether
or not subjected to primary hot rolling; and other
products of solid section, which have not been
further worked than subjected to primary hot
rolling or roughly shaped by forging, including
blanks for angles, shapes or sections.
These products are not presented in coils.
(k) Flat rolled