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 Standard ASTM standard · ASTM F Status: Withdrawn · Replaced by : ASTM F Fasteners; Rolling Element Bearings (ASTM VOL ).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 either test method is performed, both conditions will be apparent and shall be reported. See Table 2 and Fig.
The optical method is aetm only valid method for evaluating the depth of gross decarburization. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. We have no document history for this standard. You 2f328 delete a document from your Alert Profile at any time. When either test method is performed, both conditions will be apparent and shall be reported.
Evaluation by the Optical Method 7. This procedure significantly reduces the random test variables when compared to testing on a single thread. The width of any light-etching band of martensite de? This shall be performed in accordance with good metallographic practice.
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Both methods are used for routine inspections when evaluations are conducted at a single location on the product sample. It is the responsibility of the f23288 of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email.
Originally approved in For example, if an order is placed to test for decarburization asrm none is found but the presence of decarburization is detected, it shall be reported on the test report that carburization was found. This standard is also available to be included in Standards Subscriptions.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. The microindentation method 2 shall be considered the referee method. 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.
Both methods are used for routine inspections when evaluations are conducted at a single location on the product sample. Because an evaluation at a speci?
Subscription pricing is determined by: Either method is appropriate for routine examinations. 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.
No other units of measurement are included in this standard. Class 4 Skt Head N min Either method is appropriate for routine examinations. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? The dimensions for N and H are listed in F228 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
F2238 long axis of the Knoop indenter shall be aligned approximately parallel with the thread pitch angle at Position 3. Add to Alert PDF. If visible evidence of surface carburization is present on the surface zone, the microindentation hardness method, in accordance with Section 8, shall be used. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This standard is also available to be included in Standards Subscriptions.
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Gross decarburization is prohibited in Class 3 and Class 4 products. Class 2 Hex Head, N min 0. This test method is not intended to address products which are intentionally carburized to achieve specific results.
This standard is not included in any packages. Care must also be exercised to not alter the surface condition of the substrate during the coating removal process.
ASTM F2328 – 17
Precision and Bias 9. If a nonconformance is indicated, proceed to referee test method in 8. The Microindentation Method 2 shall be considered the referee method. Standards Subsctiption may be the perfect solution. Historical Version s – view previous versions of wstm. We have no amendments or corrections for this standard.