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 Standard ASTM standard · ASTM F Status: Withdrawn · Replaced by : ASTM F Fasteners; Rolling Element Bearings (ASTM VOL ).
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When such data is available, a precision and bias section will be added.
This shall be performed in accordance with good metallographic practice. The microindentation method 2 shall be considered the referee method. Therefore, limits have been established for three different product groups: You may delete a document from your Alert Profile at any time.
Link to Active This link will always route to the current Active version of the standard. Both methods are used for routine inspections when evaluations are conducted at a single location on the product sample. This test method is not intended to address products which are intentionally carburized to achieve specific results. For example, if an order is placed to test for decarburization and none is found, but the presence of carburization is detected, it shall be reported on the test report that carburization was found.
Subscription – always available and updated A web subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition. For example, if an order is placed to test for decarburization and none is found asrm the presence of decarburization is detected, it shall be reported on the test report that carburization was found. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Evaluation by the Microindentation Hardness Method 8. Too much of either will adversely affect the safety and performance of the threaded product. It is the responsibility of the user of this standard to establish appropriate safety f23328 health practices and determine the applicability of regulatory limitations prior to use.
Add to Alert PDF. This test method is not intended to address products which are intentionally carburized to achieve specific results. No other units of measurement are included in this standard. Precision and Bias 9. The threaded section will give evidence of carburization if the average of the four readings indicates a positive value. These coatings shall be removed prior to mounting if the coating prevents proper etching.
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ASTM F2328 – 17
This test method covers procedures for measuring, classifying, 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.
The microindentation method 2 shall be considered the referee method. Therefore, limits have been established for three different product groups: Either f3228 is appropriate for routine examinations. You can download and open this wstm to your own computer but DRM prevents opening this file on another computer, including a networked server.
The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email. When either test method is performed, both conditions will be apparent and shall be reported. The dimensions for N and H are listed in Table 2 for each Class.
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)_百度文库
Either method is appropriate for routine examinations. This standard is also available to be included in Standards Subscriptions. Standards Subsctiption may be the perfect solution.
This procedure significantly reduces the random test variables when compared to testing on a single thread. Historical Version s – view previous versions of standard.