A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. The values given in parentheses are for information only. It shall apply only when speci? Referenced Documents 2.
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A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. The values given in parentheses are for information only. It shall apply only when speci?
Referenced Documents 2. Unless otherwise speci? A, C, over 11? Current edition approved May 10, Published July Originally published as A — 47 T. Last previous edition A — Ordering Information 3. If no grade is speci? Materials and Manufacture 4. Chemical Composition 5. Mechanical Properties 6.
When equipment of sufficient capacity for full-size bolt testing is not available, or when the length of the bolt makes full-size testing impractical, machined specimens shall be tested and shall conform to the requirements speci?
Properties are shown in Table 4 for information. In the event of con? Also bolts with drilled or undersize heads. These sizes and bolts with modi? After zinc coating the maximum limit of pitch and major diameter shall not exceed the Class 2A maximum limit by more than the following amounts: Diameter, in.
In case of dispute, a calibrated thread ring gage of that same size Class X tolerance, gage tolerance plus shall be used.
Assembly of the gage, or the nut described above, must be possible with hand effort following application of light machine oil to prevent galling and damage to the gage. These inspections, when performed to resolve disputes, shall be performed at the frequency and quality described in Table 5.
Number of Tests and Retests 8. Based on 60 ksi MPa. D Based on 60— ksi — MPa. Dimensions 7. B Inspect all bolts in the lot if the lot size is less than the sample size. A continuous mass production for stock, and the manufacturer shall make sample inspections to ensure that the product conforms to the speci? Additional tests of individual shipments of material are not ordinarily contemplated. Individual heats of steel are not identi?
Responsibility Rejection and Rehearing Product Marking Additional marking required by the manufacturer for his own use shall be at the option of the manufacturer. Test Methods 9. Tests on? Fracture shall be in the body or threads of the bolt without any fracture at the junction of the head and body. Other headed bolts shall be tested by the axial tension method. Inspection The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this speci?
All tests and inspections required by the speci? The two identi? Packaging and Package Marking Keywords Bolts Suitable for Welding S1. This supplemental section, by additional chemical composition restrictions and by a carbon equivalent formula, provides assurance of weldability by chemical composition control. It is presupposed that suitable welding procedures for the steel being welded and the intended service will be selected.
Carbon Manganese Phosphorus Sulfur Silicon 0. NOTE —For marking small sizes, customarily less than " in. Permanent Grade Identi? For the convenience of the user, Committee F16 has highlighted those changes that impact the use of this standard.
This section may also include descriptions of the changes or reasons for the changes, or both. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phone , fax , or service astm.
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ASTM A307M PDF
ASTM A307 Specification
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