ASTM A1046:17 pdf download.Standard Specification for Steel Sheet, Zinc-Aluminum-Magnesium Alloy-Coated by the Hot-Dip Process.
7.3 When base metal mechanical properties are required, all tests shall be conducted in accordance with the methods specified in Specification A924/A924M.
7.4 Bending Properties:
7.4. 1 Minimum Cold Bending Radii—Structural steel sheet is commonly fabricated by cold bending. There are many interrelated factors that affect the ability of a steel to cold form over a given radius tinder shop conditions. These factors include: thickness, strength level, degree of restraint, relationship to rolling direction, chemistry and base metal microstructure. Appendix Xl lists the suggested minimum inside radius for 900 cold bending for these steel sheets. They pre-suppose “hard way” bending (bend axis parallel to rolling direction) and reasonably good shop forming practices. Where possible, the use of larger radii or ‘easy way” bending is recommended for improved performance.
7.4.2 Fabricators should be aware that cracks may initiate upon bending a sheared edge or cold-worked edge. This is not considered to be a fault of the steel, hut is rather a function of the induced localized cold-work zone.
8. Coating Properties
8. 1 Coating Weight [Mass]:
8.1 . I Coating weight Imass] shall conform to the requirements as shown in Table 1 for the specific coating designation.
& 1 .2 Use the relationships in Table 6 to estimate the coating thickness from the coating weight [mass].
8.1.3 Use the following relationship to convert coating weight to coating mass:
8.2.1 Coating weight [mass] tests shall be performed in accordance with the requirements stated in Specification A924/A924M.
8.2.2 The referee method to be used shall be the dilute hydrochloric acid method, in Test Method A90/A90M
8.3 Coating Bend Test- -The coating bend test specimens shall be capable of being bent through 180° in any direction without faking of the coating on the outside of the bend only.
The coating bend test inside diameter shall have a relation to the thickness of the specimen as shown in Table 7. Flaking of the coating within 0.25 in. [6 mm] of the edge of the bend specimen shall not be cause for rejection.
9. Dimensions and Permissible Variations
9.1 All dimensions and permissible variations shall comply with the requirements of Specification A924/A924M.
10. Keywords
10.1 coatings, metallic; steel sheet, metallic coated; zinc-aluminum-magnesium alloy coating.
ASTM A1046:17 pdf download
