ASTM A653/A653M-04a pdf free.Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.
This specification covers steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated (galvannealed) by the hot-dip process in coils and cut lengths.
4. Classification
4.1 The material is available in several designations as follows:
4.1.1 Commercial steel (CS Types A, B, and C),
4.1.2 Forming steel (FS Types A and B),
4.1.3 Deep drawing steel (DDS),
4.1.4 Extra deep drawing steel (EDDS),
4.1 .5 Structural steel (SS),
4.1.6 High strength low alloy steel (HSLAS Type A).
4.1.7 High strength low alloy steel (HSLAS Type B).
4.1.8 Solution hardened steel (SHS), and
4.1.9 Bake hardenable steel (BHS)
4.2 Structural steel, high strength low alloy steel, solution hardened steel, and bake hardenable steel are available in several grades based on mechanical properties. Structural Steel Grade 50 13401 is available in four classes based on tensile strength.
4.3 The material is available as either zinc-coated or zinciron alloy-coated in several coating weights [massesj or coating designations as shown in Table I, and
4.3. 1 The material is available with the same or different coating designations on each surface.
6. Chemical Composition
6. 1 Rave Mela!:
6. 1 . I The heat analysis of the base metal shall Conform to the requirements shown in Table 2 for CS (Types A, B. and C). FS (Types A and B), DDS. and EDDS. and Table 3 for SS, HSLAS (Types A and B), SHS. and B I-IS.
6.1.2 Each of the elements listed in Tables 2 and 3 shall he included in the report of heat analysis. When the amount of copper, nickel, chromium, or molybdenum is less than 0.02 %, report the analysis as either <0.02 % or the actual determined value. When the amount of vanadium, titanium, or columbium is less than 0.008 %, report the analysis as either <0.(X8 % or the actual determined value.
6.1.3 See Specification A 924/A 924M for chemical analysis procedures and product analysis tolerances.
6.2 Zinc Bath Analysis—The bath metal used in continuous hot-dip galvanizing shall contain not less than 99 % zinc.
7.3 When base metal mechanical properties are required, all tests shall be conducted in accordance with the methods specified in Specification A 924/A 924M.
7.4 Bending Properties Minimum cold Bending Radii— Structural steel and high-strength low-alloy steel are commonly fabricated by cold bending. There are many interrelated factors that affect the ability of a steel to cold form over a given radius under shop conditions. These factors includc thickness, strength level, degree of restraint, relationship to rolling direction, chemistry. and base metal microstructure. The table in Appendix Xl lists the suggested minimum inside radius for 900 cold bending for structural steel and high-strength low- alloy steel. They presuppose ‘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” bends are recommended for improved performance.ASTM A653/A653M-04a pdf free download.