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 Standard ASTM standard · ASTM F Status: Withdrawn · Replaced by : ASTM F Fasteners; Rolling Element Bearings (ASTM VOL ).
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This test method is not intended to address products which are intentionally carburized to achieve specific results. See Table 2 and Fig.
Class 2 Hex Head, N min 0. Originally approved in Add to Alert PDF. 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.
Need more than one copy? The optical method is the only valid method for evaluating the depth of gross decarburization. The microindentation method 2 shall be considered the referee method. The benefits of a subscription: If you need to be able to add standards to the monitoring service, you must register as a asstm with your own username and password.
This service is not available if you are a URL user where you do not log in with an email address. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. This ensures that you are always up-to-date and saves you both time and money. Examine Vickers HV gf gf gfA gf gf gfA Lighter loads shall be used if the size of the part warrants.
Care must also be exercised to not alter the surface condition of the substrate during the coating removal process. Your Alert Profile lists the documents that will be monitored. Both methods are used for routine inspections when evaluations are conducted at a single location on the product sample. You may delete a document from your Alert Profile at any time. No other units of measurement are included in this standard.
Webprint Printed and bound. This standard is also available to be included in Standards Subscriptions. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server. Please first log in with a verified email before subscribing to alerts. 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
A number in parentheses indicates the year of last reapproval. NOTE 1—Refer to the product standard for speci?
The long axis of the Knoop indenter shall be aligned f22328 parallel with the thread pitch angle at Position 3. You can download and open this file to your own computer but DRM prevents opening this file on another computer, including a networked server.
Current edition approved Oct. The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email. Standards Subsctiption may asym the perfect solution.
Please first verify your email before subscribing to alerts. Therefore, limits have been established for four different product groups: When such data is available, a precision and bias section will be added. The threaded section will give evidence of carburization if the average of the four readings indicates a positive value. F23288 to Checkout Continue Shopping. Subscription xstm 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.
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ASTM F2328 – 17
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. If visible evidence of surface carburization is present on the surface zone, the microindentation hardness method, in accordance with Section 8, shall be used.
When either test method is performed, both conditions will be apparent and shall be reported. Either method is appropriate for routine examinations. This standard is not included in any packages. No other units of measurement are included in this standard. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.
The microindentation method 2 shall be considered the referee method. When either test method is performed, both conditions will be apparent and shall be reported.
For example, if an order is placed to test for decarburization and none is aetm but the presence of decarburization is detected, it shall be reported on the test report that carburization was found.
If the document is revised or amended, you will be notified by email. Determine the condition of the specimen by subtracting the average reading noted at Position 1 from the average reading noted at Position 3, as de? Last previous edition approved in as F M —