September 26, 2020

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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ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.


Heat analysis Product analysis Sulfur: The two identifications shall preferably be in different locations and, when on the same level, shall be separated by at least two spaces.

Packaging and Package Marking When properly exposed to the a56m3, these steels can be used bare uncoated for many applications. This section may also include descriptions of the changes or reasons for the changes, or both. Heat analysis Product analysis A B A 0.

Nickel or molybdenum may be used. Your comments will wstm careful consideration at a meeting of the responsible technical committee, which you may attend.

Heat analysis Product analysis Manganese: Selection of the class shall be at the option of the manufacturer. I Suitable nut class and style. Supplementary Lubricant Requirements for Nuts S3.

Plain Uncoated Nuts 7. Nickel or molybdenum may be used. C26 C26 C26 C26 C26 max A, B, D, DH 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: Class 9 nuts in nominal thread diameters M42 and larger shall conform to dimensions for heavy hex nuts given in ANSI B ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.


NOTE 3—An example of an ordering description follows: Heat analysis Product analysis Vanadium: The two identications shall preferably be in different locations and, when on the same level, shall be separated by at least two spaces.

In case of dissatisfaction with the results of the test, the producer or supplier may make claim for a rehearing. When this heat treatment is used, particular attention shall be paid to the requirements in 6.

The atmospheric corrosion resistance of these steels is substantially better than that of carbon steel with or without copper addition see 5. NOTE 4—Purchasers are cautioned that different classes of nuts have different nut thickness see 7.

This specification covers chemical and mechanical requirements for eight property classes of hex and hex-flange carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts. 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 Copper: Nominal Aztm Size, in. Current edition approved April 1, Note 3 — This specification is the metric companion of Specification A Threads of nuts tapped after zinc coating 4. 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. Heat analysis Product analysis Titanium: Note 1 — Throughout this specification, the term class means property class.


Hex nuts made to the requirements of DH3 shall be marked with the symbol HX3 on one face. C, to Specification F We need your help to maintenance this website. We are a non-profit group that run this website to share documents.

Details of these supplementary requirements shall be zstm upon in writing between the manufacturer and purchaser. When A zinc-coated inch series nuts are supplied, the zinc coating, overtapping, lubrication and rotational capacity testing shall be aastm accordance with Specification A Work Item s – proposed revisions of this standard. Last previous edition approved in as A M — 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.

Packaging and Package Marking Selection of steel analysis shall be the option of the manufacturer.

ASTM AM 碳合金钢螺母_百度文库

NOTE 6—It is the intent of 4. Purchasers are cautioned to consider the dimensional requirements of the application when selecting the most appropriate nut. The manufacturer shall afford the inspector all reasonable facilities adtm satisfy him that the material is being furnished in accordance with this specification.