ASTM B221-14 pdf free.Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes.
This specification2 covers aluminum and aluminum-alloy extruded bars, rods, wire, profiles, and tubes in the aluminum alloys (Note 1) and tempers shown in Table 2.
5. Materials and Manufacture
5.1 The products covered by this specification shall be produced by the hot extrusion method or by similar methods at the option of the producer, provided that the resulting products comply with the requirements in this specification.
6. Quality Assurance
6.1 Responsibility for Inspection and Tests-Unless other- wise specified in the contract or purchase order, the producer is responsible for the performance of all inspection and test requirements specified herein. The producer may use his own or any other suitable facilities for the performance of the inspection and test requirements specified herein, unless di approved by the purchaser in the order or at the time of contract signing. The purchaser shall have the right to perform any of the inspections and tests set forth in this specification where such inspections are deemed necessary to ensure that material conforms to prescribed requirements.
7. Chemical Composition
7.1 Limits-The material shall conform to the chemical composition limits in Table 1. Conformance shall be deter- mined by the producer by taking samples in accordance with Practices E7 16 when the ingots are poured and analyzing those samples in accordance with Test Methods E607, E1251, E34. or EN 14242. At least one sample shall be taken for each group of ingots poured simultaneously from the same source of molten metal.If the producer has determined the chemical composition during pouring of the ingots, they shall not be required to sample and analyze the finished product.
NoTE 4-It is standard practice in the United States aluminum industry to determine conformance to the chemical composition limits prior to further processing of ingots into wrought products. Due to the continuous nature of the process, it is not practical to keep a specific ingot analysis identified with a specific quantity of finished material
7.2 If it becomes necessary to analyze extrusions for con- formance to chemical composition limits. the method used to sample extrusions for the determination of chemical composi tions shall be by agreement between the producer and the purchaser. Analysis shall be performed in accordance with Practices E7 16, Test Methods E607. E1251, E34, and EN 14242 (ICP method).ASTM B221-14 pdf free download.