This specification covers a group of common requirements which shall apply to tin mill products. The steel shall be made by the open-hearth, electric-furnace, or basic-oxygen process. The steel shall conform to specified chemical composition requirements. Rockwell 30T hardness test shall be done to the plates. This test forms the basis for a system of temper designation. The mechanical properties of continuously annealed plate and batch annealed plate of the same Rockwell 30T temper designation are not identical. It is important to keep in mind, that the Rockwell 30T test does not measure all various factors which contribute to the fabrication characteristics of the plate.
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1.1 This specification covers a group of common requirements, which unless otherwise specified in the purchase order or in an individual specification, shall apply to tin mill products.
1.2 In case of conflict in requirements, the requirements of the purchase order, the individual material specification,and this general specification shall prevail in the sequence named.
1.3 The following safety hazards caveat covers Annex A1 through Annex A8 of this specification: 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.
Note 1—A complete inch-pound companion to Specification A623M has been developedA623; therefore, no inch-pound equivalents are presented.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A987 Practice for Measuring Shape Characteristics of Tin Mill Products
E18 Test Methods for Rockwell Hardness of Metallic Materials
E112 Test Methods for Determining Average Grain Size
MIL-STD-163 Steel Mill Products, Preparation for Marking and Storage
Fed.Std.No.123 Marking for Shipment (Civil Agencies)
Abbreviated ratio tables; Aerated media polarization (AMP) test; Alloy-tin couple (ATC) test; Chromium coatings--specifications; Diphenylcarbazide method; Dissolution rate; Iron solution value; Metallic coatings--specifications; Pickle lag test; Tin crystal size test; Tin mill products--specifications; Total surface oil;
ICS Number Code 77.140.50 (Flat steel products and semi-products)
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