ASTM A684 PDF

For (Withdrawn ). Withdrawn Standard: ASTM A/AM | Developed by Subcommittee: A WITHDRAWN, REPLACED BY A/ AM. This standard is issued under the fixed designation A /A M; the NOTE 1 —A typical ordering description is as follows: ASTM A Annealed Spring Steel Chemical Composition. ASTM A Alloy, Rockwell ( approx), Carbon, Manganese, Phosphorus (max), Sulfur (max), Silicon. , B-

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It is produced to minimum Rockwell hardness requirements, which vary with grade, microstructure and gauge. Last previous edition A — 81e1. Link to Active This link will always route to the current Active version of the standard. A superscript epsilon e indicates an asfm change since asstm last revision or reapproval.

It is furnished in the following types as specified:. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. These ratios apply to astn performance of the test specimen. It is produced to minimum Rockwell hardness requirements, which vary with grade, microstructure and gage. Hardness test and bend test shall be made to conform to the requirements specified.

The minimum hardness should be established between the consumer and the producer.

It is produced to a maximum Rockwell hardness. The edges of the bend test specimens shall be rounded and free of burrs;? Combining values from the two systems may result in non-conformance with the standard. If adtm minimum temper is over Rockwell C 20 15N It is less suitable that No.

Historical Version s – view previous versions of standard. Your comments will receive careful consideration at a meeting of the ashm technical committee, which you may attend.

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Standard Specification for Steel, Strip, High-Carbon, Cold-Rolled

Originally published as A — The strip shall be furnished cold rolled spheroidized annealed, soft annealed, intermediate hardness, or full hard, as specified. The values listed are not exact conversions of the values listed in the inch-pound tables but instead are rounded or rationalized values.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Your comments are invited either for asmt of this standard or for additional standards and should be addressed to ASTM Headquarters.

ASTM A / AM – 17 Standard Specification for Steel, Strip, High-Carbon, Cold-Rolled

It is produced to specified Rockwell hardness ranges, the maximum being higher than obtained for the annealed type. It is furnished in the following types as specified:. When bend radius for thickness is over 0. Refer to Table 1 for appropriate scale testing requirements.

A Test Methods and De? However, under SI the preferred term is mass. The minimum hardness should be established between the consumer and the producer.

Where material is to be bent in fabricating operations a more liberal bend radius may be required and should be based on prior experience or consultation with the steel producer, or both. Combining values from the two system may result in non-conformance with the 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.

However, under SI the preferred term in astj.

ASTM A / AM – 12 Standard Specification for Steel, Strip, High-Carbon, Cold-Rolled

It is produced to a maximum Rockwell hardness. It is furnished in the following types as specified: A number in parentheses indicates the year of last reapproval.

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It is informational only and not an official part of the standard; the full text of the standard itself must be referred to a6884 its use and application. Strip is classified as product that is 0. Full hard can be produced with either a pearlitic or spheroidized microstructure or a mixture of both. It is furnished in the following types as speci?

Note 1—The term weight is used when inch-pound units are the standard. The maximum hardness limit and the corresponding minimum shall be speci? It is produced to specified Rockwell hardness ranges, the maximum being higher than obtained for the annealed type.

This abstract is a brief summary of the referenced standard. The maximum of the specified carbon range is over 0. However, unless the order specifies the applicable “M” specification designation SI unitsthe material shall be furnished to inch-pound units.

For accuracy in testing, the hardness scales should not overlap. On either hardness scale, a range of ten points arithmetic difference is required.

Combining values from the two systems will result in nonconformance with the specification. The heat or cast analysis shall conform to that specified requirement.

This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?