ASTM A6 – Standard Specification for General Requirements for Rolled Structural Steel Bars, Plates, Shapes, and Sheet Piling
This specification deals with the general requirements that apply to rolled structural steel bars, plates, shapes, and sheet piling. The steel shall be made in an open-hearth, basic-oxygen, or electric-arc furnace followed by additional refining in a ladle metallurgy furnace, or secondary melting by vacuum-arc remelting or electrostag remelting. The steel products shall undergo heat treatment, structural conditioning, and strand casting in stationary molds. Tension testing and chemical analysis shall be performed wherein the specimens shall conform to the required mechanical properties such as tensile strength, yield strength and elongation, and the required metallurgical structure and composition specifications of the products. Final products shall be legibly marked, bundled, and tagged with the applicable designation, grade, heat number, size and thickness, and name, brand, or trademark of the manufacturer for identification and shipment.
1.1 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, and sheet piling covered by each of the following product specifications issued by ASTM:
|Title of Specification
|Carbon Structural Steel
|Structural Steel for Ships
|High-Strength Low-Alloy Structural Steel
|Low and Intermediate Tensile Strength Carbon Steel Plates
|Steel Sheet Piling
|High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding
|High-Strength Carbon-Manganese Steel of Structural Quality
|High-Strength Low-Alloy Columbium-Vanadium Structural Steel
|Structural Carbon Steel Plates
|High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance
|Normalized High-Strength Low-Alloy Structural Steel Plates
|Hot-Rolled Structural Steel, High-Strength Low-Alloy Plate with Improved Formability
|High-Strength Low-Alloy Nickel, Copper, Phosphorus Steel H-Piles and Sheet Piling with Atmospheric Corrosion Resistance for Use in Marine Environments
|Structural Steel for Bridges
|Precipitation–Strengthened Low-Carbon Nickel-Copper-Chromium-Molybdenum-Columbium (Niobium) Alloy Structural Steel Plates
|Carbon and High-Strength Electric Resistance Forge-Welded Steel Structural Shapes
|Hot-Rolled Carbon, Low-Alloy, High-Strength Low-Alloy, and Alloy Steel Floor Plates
|Plates, Carbon Steel, for Forging and Similar Applications
|Alloy Structural Steel Plates
|Plates, Carbon Steel, Structural Quality, Furnished to Chemical Composition Requirements
|Steel Sheet Piling, Cold Formed, Light Gage
|High-Strength Low-Alloy Structural Steel Plate With Atmospheric Corrosion Resistance
|High-Strength Low-Alloy Steel Shapes of Structural Quality, Produced by Quenching and Self-Tempering Process (QST)
|High-Strength Low-Alloy Structural Steel Plate with Low Carbon and Restricted Sulfur for Improved Weldability, Formability, and Toughness
|Fusion-Bonded Epoxy-Coated Structural Steel H-Piles and Sheet Piling
|Structural Steel Shapes
|Structural Steel with Low Yield to Tensile Ratio for Use in Buildings
|High-Strength Low-Alloy Structural Steel Plate Produced by Thermo-Mechanical Controlled Process (TMCP)
1.2 Annex A1 lists permitted variations in dimensions and mass (Note 1) in SI units. The values listed are not exact conversions of the values in Tables 1 to 31 inclusive but are, instead, rounded or rationalized values. Conformance to Annex A1 is mandatory when the “M” specification designation is used.
NOTE 1: The term “weight” is used when inch-pound units are the standard; however, under SI, the preferred term is “mass.”
1.3 Annex A2 lists the dimensions of some shape profiles.
1.4 Appendix X1 provides information on coil as a source of structural products.
1.5 Appendix X2 provides information on the variability of tensile properties in plates and structural shapes.
1.6 Appendix X3 provides information on weldability.
1.7 Appendix X4 provides information on cold bending of plates, including suggested minimum inside radii for cold bending.
1.8 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.