ASTM A Standard Specification for Carburizing Steels for Anti-Friction Bearings. standard by ASTM International, 10/01/ View all product details. ASTM A Standard Specification for Carburizing Steels for Anti-Friction Bearings. ASTM A – Designation: A – 01 Standard Speci?cation for Carburizing Steels for Anti-Frict.

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Originally published as A — This specification covers standards for carburizing steels to be used in anti-friction bearings. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

Last previous edition A — This standard has been approved for use by agencies of the Department of Defense.

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. Special requirements agreed to at the time of purchase must be noted astmm the certi? ISO Part Other methods of sampling shall be as agreed upon by manufacturer and purchaser. Magnetic Particle Method S4.

Two thirds of all specimens and at least one from each ingot tested, sstm from the? The magnetic particle method measures bearing steel cleanliness by evaluating the total length of macro-inclusions for a stated area or per unit area. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Sulfur Requirement for Machinability S8.


ASTM A534 Grade 4320H

The polished face shall be longitudinal to the direction of rolling. The number and location of samples shall be by agreement between the purchaser and manufacturer. Referenced Documents purchase separately The documents listed below are referenced within axtm subject standard but are not provided as part of the standard.

Fields with sizes or numbers aatm all types of inclusions intermediate between con? One ingot shall be taken at random from the? Quality tests shown in 7. Sample Reduction Ratio S9. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. Intentional additions of calcium or calcium alloys for deoxidation or inclusion shape control are not permitted unless speci?

ASTM A Rods, Application: Manufacturing, Construction, School/College Workshop | ID:

Ball and Roller Bearing Steels 3. A number in parentheses indicates the year of last reapproval. Decarburization and Surface Imperfections The average total length per area inspected of all six specimens shall be agreed upon between manufacturer and purchaser. The method used shall be agreed upon between the purchaser and the steel supplier at the time of inquiry and order.


Micro-hardness measurements are to be taken using loads of g or higher. D Oxygen content applies to product analysis and shall be determined aetm accordance with Test Methods E The supplier shall be required to report on the results of the macroetch and micro-inclusion rating tests detailed below.

Tests may be made on smaller or larger sections by agreement with the purchaser.

ASTM A534 Rods, Application: Manufacturing, Construction, School/College Workshop

The sample shall be asttm and in the as-quenched condition. All tests and inspections shall be made at the place of manufacture, unless otherwise agreed upon. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Permissible variations in product analysis shall be in accordance with Speci?