ASTM F Standard Test Method for Determining Decarburization and Carburization in Hardened and Tempered Threaded Steel Bolts. ASTM FM 淬火和回火的螺纹钢螺栓、螺钉和螺柱的脱碳和渗碳性测定的 标准试验方法(米制) – Designation: F M – 07 METRIC. Start. Standard ASTM standard · ASTM F Status: Withdrawn · Replaced by : ASTM F Fasteners; Rolling Element Bearings (ASTM VOL ).
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Current edition approved Oct.
Determine the condition of the specimen by subtracting the average reading noted at Position 1 aastm the average reading noted at Position 3, as de? This test method is not intended to address products which are intentionally carburized to achieve specific results. Either method is appropriate for routine examinations. If the document is revised or amended, you will be notified by email. Proceed to Checkout Continue Shopping. Originally approved in Both methods are used for routine inspections when evaluations are conducted at a single location on the product sample.
If visible evidence of surface carburization is present on the surface zone, the microindentation hardness method, in accordance with Section 8, shall be used. This test method covers procedures for measuring, c2328, and determining the presence of decarburization and carburization in the threaded section of hardened and tempered inch series steel bolts, screws, studs, nuts, and similar parts which have been heated to facilitate fabrication or to modify their mechanical properties.
Astmm superscript epsilon e indicates an editorial change since the last revision or reapproval. If the document is revised or amended, you will be notified by email. This 2f328 is not included in any packages. When such data is available, a precision and bias section will be added.
Because an evaluation at a speci?
This ensures that you are always up-to-date and saves you both time and money. The width of any light-etching band of martensite de? Proceed to Checkout Continue Shopping. For example, if an order is placed to test for decarburization and none is found but the presence of decarburization is f238, it shall be reported on the test report that carburization was found. Referenced Documents purchase separately The documents listed below are referenced within t2328 subject standard but are not provided as part of the standard.
Class of Decarburization 5.
Need more than one copy? Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work. The microindentation method 2 shall be considered the referee method.
Individual reprints single or multiple copies of this standard d2328 be astk by contacting ASTM at the above address or at phonefaxor service astm. Class 4 Skt Head N min Need more than one copy? This procedure significantly reduces the random test variables when compared to testing on a single thread. This shall be performed in accordance with good metallographic practice. 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.
If you need to be able to add standards to the monitoring service, you must register as a user with your own username and password. For example, if an order is asttm to test for decarburization and r2328 is found, but the presence of carburization is detected, it shall be reported on the test report that carburization was found. Already Subscribed to this document.
Historical Version s – view previous versions of standard. As the voice of the U. Either method is appropriate for routine examinations.
Please first verify your email before subscribing to alerts. Last previous edition approved in as F M —