ASTM A specification covers high-carbon bearing-quality steel to be used in the manufacture of anti-friction bearings. The most common. ASTM A 高碳耐磨轴承钢技术规范 – Designation: A – 98 Standard Speci?cation for High-Carbon Anti. ASTM A/AM Standard Specification for High-Carbon Anti-Friction Bearing Steel. standard by ASTM International, 10/01/ View all product details.
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Lamellar content of other compositions shall be as agreed upon between manufacturer and purchaser. Chemical Composition and Analysis 5.
Materials shall conform to chemical compositions as specified herein, and to physical size and shape as agreed upon between the manufacturer atm purchaser. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Link to Active This link will always route to the current Active version of the standard. This specification covers high-carbon bearing-quality steel to be used in the manufacture of anti-friction bearings. Decarburization asfm Surface Imperfections 9. Tests may be made on smaller or larger sections by agreement between manufacturer and purchaser.
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. This abstract is a brief summary of the referenced a95. Fields with sizes or numbers of all types of inclusions intermediate between con?
The magnetic particle method measures bearing steel xstm by evaluating the total length of macro-inclusions for a stated area or per unit area. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Sample Reduction Ratio S5. At least one sample shall be taken from each strand.
ASTM A295 Grade 52100 annealed, cold-drawn (stress-relieved) Coils
Sizes, Aatm, and Dimensional Tolerances 6. Combining values from the two systems may result in non-conformance with the standard.
One ingot shall be taken at random from the? A number in parentheses indicates the year of last reapproval. Where a single usable plate constitutes a heat, any three random ingots may be selected.
Other methods of sampling shall be as agreed upon between manufacturer and purchaser. Magnetic Particle Method S3.
When annealing is specified in the order, the steel shall adhere to hardness requirements and have a completely spheroidized microstructure, which shall accordingly be rated aatm reported as carbide size, carbide network, and lamellar content.
It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Two x295 of all specimens and at least one from each ingot tested, or from the?
ASTM A, High-Carbon Anti-Friction Bearing Steel – Special Steel
A — 98 Standard Speci? When so included, a supplementary requirement shall have the same force as if it were in the body of the speci? Quality tests shown in 7. Current edition approved Dec. The polished face shall be longitudinal to the direction of rolling. D Oxygen content applies to product a2955 and shall be determined in accordance with Test Method E ASTM International takes no position respecting the validity of any patent rights asserted in connection with any astn mentioned in this standard.
ASTM A295, High-Carbon Bearing Steel
The sum of all lengths for each specimen shall be determined and expressed as total length per area inspected. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
All tests and inspections shall be made at the place of manufacture, unless otherwise agreed to. Intentional additions of calcium or calcium alloys for deoxidation or inclusion shape control are not permitted unless speci?
Steels shall exhibit fine fracture a29 size when quenched from normal austenitizing temperatures.