Область применения

1.1 This specification covers the general requirements for hot-rolled, heavy-thickness sheet and strip in coils.

1.2 It applies to Specification A 1018/A 1018M.

1.3 This material is available only in coils described as follows:

Size Limits, Coils OnlyProduct Width, in. [mm] Thickness, in. [mm]Stripover 8 to 12, incl[over 200 through 300] 0.230 to 1.000, incl [from 6.0 through 25]Sheetover 12 to 48, incl [over 300 through 1200]0.230 to 1.000, incl[from 6.0 through 25]Sheetover 48[over 1200]0.180 to 1.000, incl[from 4.5 though 25]

1.4 In case of any conflict in requirements, the requirements of the individual material specification shall prevail over those of this general specification.

1.5 lists permissible variations in dimensions and mass (see Note 0) in SI [metric] units. The values listed are not exact conversions of the values listed in the inch-pound tables, but instead are rounded or rationalized values. Conformance to is mandatory when the "M" specification is used. The term weight is used when inch-pound units are the standard. However, under SI, the preferred term is mass.

1.6 The values stated in either inch-pound units or SI units are to be regarded as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with this specification.

1.7 This specification and the applicable material specifications are expressed in both inch-pound units and SI units. However, unless the order specifies the applicable "M" specification designation (SI units), the material shall be furnished to inch-pound units.