ASME SA 29:2007 pdf free download

ASME SA 29:2007 pdf free download SPECIFICATION FOR STEEL BARS, CARBON AND ALLOY, HOT-WROUGHT AND COLD-FINISHED, GENERAL REQUIREMENTS FOR
6. Mechanical Property Requirements
6.1 Test Specimens:
6.1.1 Selection — Test specimens shall be selected in accordance with the requirements ofthe applicable product specification or in accordance with Supplement I of the latest issue of Test Methods and Definitions A 370, in the sequence named.
6.1.2 Preparation — Unless otherwise specified in the applicable product specification, test specimens shall be prepared in accordance with the latest issue of Test Methods andDefinitions A 370, andespecially Supplement I thereof.
6.2 Methods of Mechanical Testing — All mechanical tests shall be conducted in accordance with the latest issue of Test Methods and Definitions A 370, and especially Supplement I thereof, on steel bar products. 130 6.3 Retests:
6.3.1 Ifany testspecimenshows defective machining or develops flaws, the specimen may be discarded and another substituted.
6.3.2 If the percentage elongation of any tension specimen is less than that specified and any part of the fracture is more than 3 ⁄ 4 in. [20 mm] from the center of a 2 in. [50 mm] specimen, or is outside the middle half of the gage length ofan 8 in. [200 mm] specimen as indicated by scribe scratches marked on the specimen before testing, a retest shall be allowed.
6.3.3 For “as-wrought” material, if the results for any originaltension specimen are within 2000 psi [14 MPa] of the required tensile strength, within 1000 psi [7 MPa] of the required yield point, or within 2% of the required elongation, retesting shall be permitted. Ifthe original test- ing required only one test, the retest shall consist of two random tests from the heat or lot involved. If the original testing required two tests of which one failed by the amounts listed in this paragraph, the retest shall be made on one random test from the heat or lot. If the results on the retest specimen or specimens meet the specified requirements, the heat or test lot will be accepted. If the results of one retest specimen do not meet the specified requirements, the material is subject to rejection.
6.3.4 For thermally treated bars, if the results of the mechanical tests do not conform to the requirements specified, two more tests may be selected for each bar failing, and each of these retests shall conform to the requirements of the product specification.
6.3.5 If a bend specimen fails, due to conditions of bending more severe than required by the specification, a retest shall be permitted from the heat or test lot involved forwhich one random specimen foreach original specimen showing failure shall be used. If the results on the retest specimen meet the requirements of the specification, the heat or test lot will be accepted.
7. Dimensions, Mass, and Permissible Variations
7.1 Hot-WroughtBars — The permissible variations for dimensions ofhot-wrought carbon andalloy steel bars shall not exceed the applicable limits stated in Annex A1 for inch-pound values and Annex A2 for metric values.
7.2 Cold-Finished Bars — The permissible variations for dimensions of cold-finished carbon and alloy steel bars shall not exceed the applicable limits stated in Annex A1 for inch-pound values and Annex A2 for metric values.
8. Workmanship, Finish, and Appearance 8.1 The material shall be free of injurious defects and shall have a workmanlike finish.
9. Rework and Retreatment
9.1 For thermally treated bars only, the manufacturer may retreat a lot one or more times, and retests shall be made in the same manner as the original tests. Each such retest shall conform to the requirements specified.
10. Inspection 10.1 The inspector representing the purchaser shall have entry, at all times while work on the contract of the purchaseris beingperformed, toall parts ofthe manufactur- er’s works that concern the manufacture of the material ordered. The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this specification. All tests (except product analysis) and inspection shall be made at the place of manufacture prior to shipment, unless other- wise specified, and shall be so conducted as not to interfere unnecessarily with the operation of the works.
10.2 All required tests and inspection shall be made by the manufacturer prior to shipment.
11. Rejection
11.1 Unless otherwise specified, any rejection because of noncompliance to the requirements of the specification shall be reported by the purchaser to the manufacturer within 30 working days after receipt of samples.
11.2 Material that shows imperfections capable of adversely affecting processibility subsequent to its accept- ance at the purchaser’s works will be rejected, and the manufacturer shall be notified.