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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Results are commonly expressed in millimeters asstm square metre. Decarburization shall be measured using the microscopical methods described in Test Method E D Oxygen content applies to product analysis and shall be determined in accordance with Test Method E This abstract is a brief summary of the referenced standard. Referenced Documents purchase separately The atm listed below are referenced within the subject standard but are not provided as part of the standard.
All aastm and inspections shall be made at the place of manufacture, unless otherwise agreed to. When two usable plates constitute a heat, two of the sample ingots shall be selected from the second usable plate poured. Materials shall conform to chemical compositions as specified herein, and to physical size and shape as agreed upon between the manufacturer and purchaser.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
ASTM A 高碳耐磨轴承钢技术规范_百度文库
Chemical Composition and Analysis 5. Sizes, Shapes, and Dimensional Tolerances 6. Sulfur Requirement for Machinability S4. 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 and reported as carbide size, carbide network, and lamellar content. Asmt previous edition A — Current edition approved Dec. The polished face shall be longitudinal to the direction of rolling.
This specification covers high-carbon bearing-quality steel to be used in the manufacture of anti-friction bearings. Two thirds of all specimens and at least one from each ingot tested, or from the? Where a single usable plate constitutes a heat, any three random ingots may be selected.
The sum of all lengths for each specimen shall be determined and expressed as total length per area inspected. Special requirements agreed to at the time of purchase shall be noted on the certi? Lamellar content of other compositions shall be as agreed upon between manufacturer and purchaser.
ASTM A295, High-Carbon Bearing Steel
Originally published as A — 46 T. The scale used for rating the specimens shall be the Jernkontoret chart described in Practice E 45, Plate I-r. ASTM does not give any warranty express or a2295 or make any representation that the contents of this abstract are accurate, complete or up to date.
One ingot shall be taken at random from the? Magnetic Particle Method S3. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Decarburization and Surface Imperfections 9.
Historical Version s – view previous versions of standard. Link to Active This link will always route to the current Active version of the standard. Intentional additions of calcium or calcium alloys for deoxidation or inclusion shape control are not permitted unless speci? A number in parentheses indicates the year of last reapproval. Sample Reduction Ratio S5. Combining values from the two systems may result in non-conformance with the standard.
The chemical composition thus determined shall conform to the requirements speci? 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.