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Description of ASTM-A847 2012ASTM A847 / A847M - 12Standard Specification for Cold-Formed Welded and Seamless High-Strength, Low-Alloy Structural Tubing with Improved Atmospheric Corrosion ResistanceActive Standard ASTM A847 / A847M | Developed by Subcommittee: A01.09 Book of Standards Volume: 01.01 ASTM A847 / A847MAbstract This specification covers standard requirements for cold-formed welded and seamless high-strength, low-alloy round, square, rectangular, or special shaped structural tubing for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes where high strength and enhanced atmospheric corrosion resistance are required. Round and shaped tubing shall meet the required tensile properties such as tensile strength, yield strength, and elongation. Heat and product analysis shall be performed wherein steel materials shall conform to the required chemical composition for carbon, manganese, phosphorus, sulphur, and copper. Outside dimension tolerances for square and rectangular tubing shall not exceed the specified plus and minus tolerances. Length tolerance for structural tubing shall be in accordance with the specified values. Twist tolerances for square and rectangular structural tubing shall be indicated. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. 1. Scope 1.1 This specification covers cold-formed welded and seamless high-strength, low-alloy round, square, rectangular, or special shaped structural tubing for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes where high strength and enhanced atmospheric corrosion resistance are required ( Note 1 ). The atmospheric corrosion resistance of this steel in most environments is substantially better than carbon steel with or without copper addition ( Note 2 ). When properly exposed to the atmosphere, this steel can be used bare (unpainted) for many applications. When this steel is used in welded construction, the welding procedure shall be suitable for the steel and the intended service. 1.2 This tubing is produced in welded sizes with a maximum periphery of 64 in. [1626 mm] and a maximum wall of 0.625 in. [15.9 mm], and in seamless with a maximum periphery of 32 in. [813 mm] and a maximum wall of 0.500 in. [12.7 mm]. Tubing having other dimensions may be furnished provided such tubing complies with all other requirements of this specification. 1.3 The values stated in either SI units or inch-pound 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 the standard.
Note 1 Products manufactured to this specification may not be suitable for those applications where low
temperature notch toughness properties may be important, such as dynamically loaded elements in welded structures, etc.
Note 2 For methods of estimating the atmospheric corrosion resistance of low alloy steels see Guide G101 or
actual data.
ASTM Standards A370 Test Methods and Definitions for Mechanical Testing of Steel Products A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Shipment A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products G101 Guide for Estimating the Atmospheric Corrosion Resistance of Low-Alloy Steels Keywords ICS Code ICS Number Code 23.040.10 (Iron and steel pipes); 23.040.40 (Metal fittings) DOI: 10.1520/A0847_A0847M-12 ASTM International is a member of CrossRef. ASTM A847 / A847MThe following editions for this book are also available...This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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