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 Standard ASTM standard · ASTM F Status: Withdrawn · Replaced by : ASTM F Fasteners; Rolling Element Bearings (ASTM VOL ).
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The microindentation method 2 shall be considered the referee method. Class 2 Hex Head, N min 0. This standard is not included in any packages. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards.
If a nonconformance is indicated, proceed to referee test method in 8. No other units of measurement are included in this standard. This test method is not intended to address products which are intentionally carburized to achieve specific results. We have no amendments or corrections for this 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. Originally approved in The dimensions for N and H are listed in Table 2 for each Class. You may delete a document from your Alert Profile at any time.
Determine the condition of the specimen by subtracting the average astmm noted at Position 2 from the average reading noted at Position 1, in accordance with 8. The benefits of a subscription: Both methods are used for routine inspections when evaluations are conducted at a single location on the product sample. Adtm have no document history for this standard.
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
Standards Subsctiption may be the perfect solution. Current edition approved Oct. Already Subscribed to this document. When such data is ast, a precision and bias section will be added. As the voice of the U.
ASTM F2328 – 17
Too much of either will adversely affect the safety and performance of the threaded product. The long axis of the Knoop indenter shall be aligned approximately parallel with the thread pitch angle at Position 3. The width of any light-etching band of martensite de?
Compare the image with Fig. Too much of either will adversely affect the safety and performance of the threaded product. 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. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
The optical method is the only valid method for evaluating the depth of gross decarburization. NOTE 1—Refer to the product standard for speci? Your Alert Profile lists the documents that will be monitored.
When either test method is performed, both conditions will be apparent and shall be reported. The threaded section will give evidence of carburization if the average of the four readings ast a positive value.
For example, if an order is placed to test for decarburization and 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 subject to revision at any time by the responsible technical committee and must be reviewed every?
H For heat treated products which have tensile strengths up to MPa and those with a speci? Subscription pricing is determined by: Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.