ASTM A653/A653M - 11 en

Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process

  • Deze norm is ingetrokken sinds 01-12-2013

57,20 69,21 Incl BTW

Over deze norm

Status Ingetrokken
Aantal pagina's 14
Gepubliceerd op 01-11-2011
Taal Engels

1.1 This specification covers steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated (galvannealed) by the hot-dip process in coils and cut lengths.

1.2 The product is produced in various zinc or zinc-iron alloy-coating weights [masses] or coating designations as shown in Table 1 and in Table S2.1.

1.3 Product furnished under this specification shall conform to the applicable requirements of the latest issue of Specification A924/A924M, unless otherwise provided herein.

1.4 The product is available in a number of designations, grades and classes in four general categories that are designed to be compatible with different application requirements.

1.4.1 Steels with mandatory chemical requirements and typical mechanical properties.

1.4.2 Steels with mandatory chemical requirements and mandatory mechanical properties.

1.4.3 Steels with mandatory chemical requirements and mandatory mechanical properties that are achieved through solid-solution or bake hardening.

1.5 This specification is applicable to orders in either inch-pound units (as A653) or SI units (as A653M). Values in inch-pound and SI units are not necessarily equivalent. Within the text, SI units are shown in brackets. Each system shall be used independently of the other.

1.6 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes, excluding those in tables and figures, shall not be considered as requirements of this specification.

1.7 Unless the order specifies the M designation (SI units), the product shall be furnished to inch-pound units.

1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

TABLE 1 Weight [Mass] of Coating RequirementsA, B, C

Note— Use the information provided in 8.1.3 to obtain the approximate coating thickness from the coating weight [mass].

Minimum RequirementD
Triple-Spot Test (TST)
Single-Spot Test (SST)
Inch-Pound Units
TypeCoating DesignationTST
Total Both Sides, oz/ft2
One Side, oz/ft2
Total Both Sides, oz/ft2
ZincG01 no minimumno minimum no minimum
G30 0.300.100.25
G40 0.400.120.30
G60 0.600.200.50
G90 0.900.320.80
Zinc-iron alloyA01 no minimumno minimumno minimum
A40 0.400.120.30
A60 0.600.200.50
SI Units
TypeCoating Designation
Total Both Sides, g/m2
One Side, g/m2
Total Both Sides, g/m2
ZincZ001 no minimumno minimumno minimum
Z90 90 30 75
Z120 120 36 90
Z180 180 60150
Z275 275 94235
Z305 305110275
Z350 350120300
Z450 450154385
Z500 500170425
Z550 550190475
Z600 600204510
Z700 700238595
Z900 900316790
Zinc-iron alloyZF001no minimumno minimumno minimum
ZF75 75 24 60
ZF120120 36 90
ZF180180 60150

A The coating designation is the term by which the minimum triple spot, total both sides coating weight [mass] is specified. Because of the many variables and changing conditions that are characteristic of continuous hot-dip coating lines, the zinc or zinc-iron alloy coating is not always evenly divided between the two surfaces of a coated sheet; nor is it always evenly distributed from edge to edge. However, the minimum triple-spot average coating weight (mass) on any one side shall not be less than 40 % of the single-spot requirement.

B As it is an established fact that the atmospheric corrosion resistance of zinc or zinc-iron alloy-coated sheet products is a direct function of coating thickness (weight (mass)), the selection of thinner (lighter) coating designations will result in almost linearly reduced corrosion performance of the coating. For example, heavier galvanized coatings perform adequately in bold atmospheric exposure whereas the lighter coatings are often further coated with paint or a similar barrier coating for increased corrosion resistance. Because of this relationship, products carrying the statement meets ASTM A653/A653Mrequirements should also specify the particular coating designation.

C International Standard, ISO 3575, continuous hot-dip zinc-coated carbon steel sheet contains Z100 and Z200 designations and does not specify a ZF75 coating.

D No minimum means that there are no established minimum requirements for triple- and single-spot tests.


ICS-code 77.140.50
Engelse titel Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process
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