Note: it is a requirment of ASTM AM & ASTM FM standard theat the bolt nut & washer should be assembled and supplied by one manufacturer who shall . ASTM Standards: A Specification for Zinc Coating (Hot-Dip) on Iron and. Steel Hardware2. A M Specification for High-Strength Bolts for Struc-. ASTM AM 碳合金钢螺母 – ASTM American Society for Testing and Materials(美国材料与试验协会)成立于年,是美国最老.
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Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. When the dimensional style of the nut is not designated by the purchaser, hex nuts, Style 2, in conformance with ANSI B Please fill this form, we will try to respond as soon as possible. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This shall be the only hardness requirement for nuts that are proof load tested.
When this heat treatment is used, particular attention shall be paid to the requirements in 6. Purchasers are cautioned to consider the dimensional requirements of the application when selecting the most appropriate nut.
B Non-zinc-coated nuts are nuts intended for use with externally threaded fasteners which have a plain nonplated or noncoated finish or have a plating or coating of insufficient thickness to necessitate overtapping the nut thread to provide assemblability. Heat analysis Product analysis Nickel: Such nuts shall be tapped oversize to have internal threads with maximum and minimum limits that exceed the maximum and minimum limits specied for metric coarse internal threads with Grade 6H tolerances by the following diametral allowances: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition see 5. In addition, the manufacturer may add other distinguishing marks indicating that the nut is atmospheric corrosion resistant and of a weathering type.
Heavy Hexagon Nuts ASTM AM
A, B, D, DH This standard is subject to revision at any time by the responsible technical committee and must be reviewed every ve years and if not revised, either reapproved or withdrawn.
Heat analysis Product analysis Silicon: We need your help!
This abstract is a brief summary of the referenced standard. Such nuts are suitable. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
C26 C26 C26 C26 C26 max Heat analysis Product analysis Phosphorus: Individual heats of steel asgm not identied in the nished product. However, if markings are located on the bearing surface or on one of the wrenching ats, they shall be depressed.
NOTE 1—Throughout this specication, the term class means property class. Work Item s – proposed revisions of this standard. G Recommended nut class and style.
Threads of nuts tapped after zinc coating 4. NOTE 2—A complete metric companion to Specification A has been developed—AM; therefore, no metric equivalents are presented in this specification. Classes 8S3 and 10S3 nuts have atmospheric corrosion resistance and weathering characteristics comparable to those of the steels. NOTE 3—An example of an ordering description follows: Nickel or molybdenum may be used.
When required, they are covered by the applicable bolt specification. Last previous edition approved in as A M — Current edition approved April 1, Please help us to share our service with your friends. Originally approved in Last previous edition approved in as A — 07a.
ASTM AM 碳合金钢螺母_百度文库
Details of these supplementary requirements shall be agreed upon in writing between the manufacturer and purchaser. The two identications astj preferably be in different locations and, when on the same level, shall be separated by at least two spaces.
E Non-zinc-coated nuts are nuts intended for use with externally threaded fasteners, which have a plain nonplated or noncoated finish or a have a plating or coating a563n insufficient thickness to necessitate overtapping the nut thread to provide assembiability. See Guide G for methods of estimating corrosion resistance of low alloy steels. With the written approval of the purchaser, the supplier may substitute as follows: Selection of steel analysis shall be the option of the manufacturer.
Heat analysis Product analysis Vanadium: NOTE 2— Axtm loads are computed by multiplying proof load stress Table 3 by thread stress area and dividing by However, if markings are located on the bearing surface, they shall be depressed. The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition see 6.
Heat analysis Product analysis Titanium: Heat analysis Product analysis Chromium: