Abstract
This specification covers steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated (galvannealed) by the hot-dip process in coils and cut lengths. The material is available in several designations as follows: commercial steel, forming steel, deep drawing steel, extra deep drawing steel, structural steel, high strength low alloy steel, high strength low alloy steel with improved formability, solution hardened steel, and bake hardenable steel. Structural steel, high strength low alloy steel, solution hardened steel, and bake hardenable steel are available in several grades based on mechanical properties. Yield strength, elongation, and bending properties of the steel shall be determined. A bend test shall be done to the coated sheets.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1. Scope
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.
TABLE 1 Weight [Mass] of Coating RequirementsA, B, C
Note 1— 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 |
| Type | Coating Designation | TST Total Both Sides, oz/ft2 | TST One Side, oz/ft 2 | SST Total Both Sides, oz/ft2 |
| Zinc | G01 | no minimum | no minimum | no minimum |
| G30 | 0.30 | 0.10 | 0.25 |
| G40 | 0.40 | 0.12 | 0.30 |
| G60 | 0.60 | 0.20 | 0.50 |
| G90 | 0.90 | 0.32 | 0.80 |
| G100 | 1.00 | 0.36 | 0.90 |
| G115 | 1.15 | 0.40 | 1.00 |
| G140 | 1.40 | 0.48 | 1.20 |
| G165 | 1.65 | 0.56 | 1.40 |
| G185 | 1.85 | 0.64 | 1.60 |
| G210 | 2.10 | 0.72 | 1.80 |
| G235 | 2.35 | 0.80 | 2.00 |
| G300 | 3.00 | 1.04 | 2.60 |
| G360 | 3.60 | 1.28 | 3.20 |
| Zinc-iron alloy | A01 | no minimum | no minimum | no minimum |
| A25 | 0.25 | 0.08 | 0.20 |
| A40 | 0.40 | 0.12 | 0.30 |
| A60 | 0.60 | 0.20 | 0.50 |
| SI Units |
| Type | Coating Designation | TST Total Both Sides, g/m2 | TST One Side, g/m2 | SST Total Both Sides, g/m2 |
| Zinc | Z001 | no minimum | no minimum | no minimum |
| Z90 | 90 | 30 | 75 |
| Z120 | 120 | 36 | 90 |
| Z180 | 180 | 60 | 150 |
| Z275 | 275 | 94 | 235 |
| Z305 | 305 | 110 | 275 |
| Z350 | 350 | 120 | 300 |
| Z450 | 450 | 154 | 385 |
| Z500 | 500 | 170 | 425 |
| Z550 | 550 | 190 | 475 |
| Z600 | 600 | 204 | 510 |
| Z700 | 700 | 238 | 595 |
| Z900 | 900 | 316 | 790 |
| Z1100 | 1100 | 390 | 975 |
| Zinc-iron alloy | ZF001 | no minimum | no minimum | no minimum |
| ZF75 | 75 | 24 | 60 |
| ZF120 | 120 | A90/A90M Test Method for Weight [Mass] of Coating on Iron and Steel Articles with Zinc or Zinc-Alloy Coatings
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A568/A568M Specification for Steel, Sheet, Carbon, Structural, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for
A902 Terminology Relating to Metallic Coated Steel Products
A924/A924M Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process
D7396 Guide for Preparation of New, Continuous Zinc-Coated (Galvanized) Steel Surfaces for Painting
E517 Test Method for Plastic Strain Ratio r for Sheet Metal
E646 Test Method for Tensile Strain-Hardening Exponents (n -Values) of Metallic Sheet Materials
ISO Standard
ISO 4998 Continuous Hot-Dip Zinc-Coated Carbon Steel of Structural Quality
ICS Code
ICS Number Code 77.140.50 (Flat steel products and semi-products)
DOI: 10.1520/A0653_A0653M
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