Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM A370-09
• Năm ban hành / Publication date: 2009
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Methods and Definitions for Mechanical Testing of Steel Products
• Số trang / Page: 47
• Phạm vi áp dụng / Scope of standard: 1.1 These test methods cover procedures and definitions for the mechanical testing of wrought and cast steels, stainless steels, and related alloys. The various mechanical tests herein described are used to determine properties required in the product specifications. Variations in testing methods are to be avoided, and standard methods of testing are to be followed to obtain reproducible and comparable results. In those cases in which the testing requirements for certain products are unique or at variance with these general procedures, the product specification testing requirements shall control. 1.2 The following mechanical tests are described: SectionsTension 5 to 13Bend14Hardness15 Brinell16 Rockwell17 Portable18Impact19 to 28Keywords291.3 Annexes covering details peculiar to certain products are appended to these test methods as follows: AnnexBar ProductsA1.1Tubular ProductsAnnex A2FastenersAnnex A3Round Wire ProductsAnnex A4Significance of Notched-Bar Impact TestingAnnex A5Converting Percentage Elongation of Round Specimens to Equivalents for Flat SpecimensAnnex A6Testing Multi-Wire StrandAnnex A7Rounding of Test DataAnnex A8Methods for Testing Steel Reinforcing BarsAnnex A9Procedure for Use and Control of Heat-Cycle SimulationAnnex A101.4 The values stated in inch-pound units are to be regarded as the standard. 1.5 When this document is referenced in a metric product specification, the yield and tensile values may be determined in inch-pound (ksi) units then converted into SI (MPa) units. The elongation determined in inch-pound gauge lengths of 2 or 8 in. may be reported in SI unit gauge lengths of 50 or 200 mm, respectively, as applicable. Conversely, when this document is referenced in an inch-pound product specification, the yield and tensile values may be determined in SI units then converted into inch-pound units. The elongation determined in SI unit gauge lengths of 50 or 200 mm may be reported in inch-pound gauge lengths of 2 or 8 in., respectively, as applicable. 1.6 Attention is directed to ISO/IEC 17025 and E 1595 when there may be a need for information on criteria for evaluation of testing laboratories. 1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.