ASTM A6/A6M-23 pdf free download – Standard Specification For General Requirements For Rolled Structural Steel Bars, Plates, Shapes, And Sheet Piling.
This general requirements specification2 covers a group of common requirements that, unless otherwise specified in the applicable product specification, apply to rolled structural steel bars, plates, shapes.
This general requirements specification also covers a group of supplementary requirements that are applicable to several of the above product specifications as indicated therein. Such requirements are provided for use where additional testing or additional restrictions are required by the purchaser, and apply only where specified individually in the purchase order.
1.9 In case of any conflict in requirements, the requirements of the applicable product specification prevail over those of this general requirements specification.
1.10 Additional requirements that are specified in the purchase order and accepted by the supplier are permitted, provided that such requirements do not negate any of the requirements of this general requirements specification or the applicable product specification.
1.11 For purposes of determining conformance with this general requirements specification and the applicable product specification, values are to be rounded to the nearest unit in the right-hand place of figures used in expressing the limiting values in accordance with the rounding method of Practice E29.
1.12 The text of this general requirements specification contains notes or footnotes, or both, that provide explanatory material. Such notes and footnotes, excluding those in tables and figures, do not contain any mandatory requirements.
1.13 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with this specification.
1.14 This general requirements specification and the applicable product specification are expressed in both inch-pound units and SI units; however, unless the order specifies the applicable “M” specification designation (SI units), the structural product is furnished to inch-pound units.
7.Chemical Analysis7.1 Heat Analysis:
7.1.1 Sampling for chemical analysis and methods of analy-sis shall be in accordance with Test Methods，Practices，andTerminology A751.
7.1.2 For each heat, the heat analysis shall include determination of the content of carbon, manganese, phosphorus, sulfur,silicon,nickel，chromium,molybdenum,copper，vanadium,columbium (niobium); any other element that is specified orrestricted by the applicable product specification for theapplicable grade，class，and type;and any austenitic grainrefining element whose content is to be used in place ofaustenitic grain size testing of the heat (see 8.3.2). Boron shallbe reported if intentionally added.
NOTE 3——For steels that do not have intentional boron additions forhardenability, the boron content will not normally exceed 0.0008 %.
7.1.3 Except as allowed by 7.1.4 for primary heats，heatanalyses shall conform to the heat analysis requirements of theapplicable product specification for the applicable grade, class,and type.
7.1.4 Where vacuum-arc remelting or electroslag remeltingis used, a remelted heat is defined as all ingots remelted froma single primary heat. If the heat analysis of the primary heatconforms to the heat analysis requirements of the applicable.

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