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ASTM A563M PDF

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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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.

NOTE 1—Throughout this specication, the term class means property class.

The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition a53m 5. When properly exposed to the atmosphere, these steels can be used bare uncoated for ashm applications. Current edition approved Oct. Originally approved in Last previous edition approved in as A M — With the written approval of the purchaser, the supplier may substitute as follows: NOTE 4—Purchasers are cautioned that different classes of nuts have different nut thickness see 7.

Dimensional suitability of the nut for the intended application should be considered before approving substitution of a higher class. NOTE 5—Examples of ordering descriptions are: When this heat treatment is used, particular attention shall be paid to the requirements in 6.

NOTE 6—It is the intent of 4. See Guide G for methods of estimating corrosion resistance of low alloy steels. Materials and Manufacture 4. B For Classes a5563m and 12, a sulfur content of 0.

Heat analysis Product analysis Manganese: Heat analysis Product analysis Phosphorus: Heat analysis Product analysis Sulfur: Heat analysis Product analysis Silicon: Heat analysis Product analysis Copper: Heat analysis Product analysis Nickel: Heat analysis Product analysis Chromium: Heat analysis Product analysis Vanadium: Heat analysis Product analysis Molybdenum: Heat analysis Product analysis Titanium: Heat analysis Product analysis A B A 0.

ASTM A563M

Class 8S3 nuts may be made of any of the listed steel analyses. Selection of steel analysis shall be the option of the manufacturer.

Nickel or molybdenum may be used. This shall be the only hardness requirement for nuts that are proof load tested.

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ASTM AM 碳合金钢螺母_百度文库

NOTE 7—The proof load of a nut is the axially applied load the nut must withstand without thread stripping or rupture. Proof loads Table 4 are computed by multiplying proof load stress Table 3 by the nut thread stress area. B70 B70 B70 B78 B C26 C26 C26 C26 C26 max When the dimensional style of nut is asstm designated by the purchaser, hex nuts, Style 2, in conformance with ANSI B Class 9 nuts in nominal thread diameters M42 and larger shall conform to dimensions for heavy hex nuts given in ANSI B When the dimensional style of nut is not designated by the purchaser, hex nuts, Style 1, in conformance with ANSI B When the dimensional style of the nut is not designated by the purchaser, hex nuts, Style 2, in conformance with ANSI B Class 12 nuts in nominal thread diameters M42 and larger shall conform to dimensions for heavy hex nuts given in ANSI B 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: Asmt 2— Proof loads are computed by multiplying proof load stress Table 3 by thread stress area and dividing by NOTE 9—If a5633m over-tapping diametral allowance is greater than the limit specied in 7.

NOTE 10—If the overtapping diametral allowance is greater than the limit specied in 7.

Threads of nuts tapped after zinc coating 4. Threads of nuts tapped prior to zinc coating 4. Number of Tests 9. Additional tests of individual shipments of material are not ordinarily contemplated.

Individual heats of steel are not identied in the nished product. Number of Nuts in Lot and under to to 22 Over 22 Number of Specimens 1 2 3 5 The manufacturer shall afford the inspector all reasonable facilities to satisfy him that the material is being furnished in accordance with this specication. Markings located on the top or bearing surface or on the top of the ange shall be positioned with the base of the numeral s oriented toward the nut periphery.

Class 9 nuts marked on one of the wrenching ats shall have the numeral 9 underlined. However, if markings are located on the bearing surface or on one of the wrenching ats, they shall be depressed. The two identications shall preferably be in different locations and, when on the same level, shall be separated by at least two spaces. Packaging and Package Marking Purchasers are cautioned to consider the dimensional requirements of the application when selecting the most appropriate nut.

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G Recommended nut class and style. I Suitable nut class and style. Class 10 nuts are made of carbon or alloy steel conforming to chemical composition requirements given in Table 1, and are heat treated as specied in 4. Slotted hex nuts are not normally proof load tested. Class 05 nuts are made of carbon or alloy steel conforming to the chemical composition requirements specied for Class 10 nuts in Table 1, and are heat treated as specied in 4.

Hex jam nuts are not normally proof load tested. 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. ASTM International ashm no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. 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 a5563m 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.

Your comments are invited either for revision of this standard or for additional standards and should aztm addressed to ASTM International 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 a5633m 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 phonefaxor service astm.