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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It is informational only and not an official part of the a95 the full text of the standard itself must be referred to for its use and application.
ASTM A / AM – 14 Standard Specification for High-Carbon Anti-Friction Bearing Steel
Lamellar content of other compositions shall a2955 as agreed upon between manufacturer and purchaser. Chemical Composition and Analysis 5. This specification covers high-carbon bearing-quality steel to be used in the manufacture of anti-friction bearings. Tests may be made on smaller or larger sections by agreement between manufacturer and purchaser.
Permissible variations in product analysis shall be in accordance with Speci?
ASTM A295 Grade 52100 annealed, cold-drawn (stress-relieved) Coils
Magnetic Particle Method S3. ASTM does not give any warranty express or implied or make any a2995 that the contents asttm this abstract are accurate, complete or up to date. This abstract is a brief summary of the referenced standard. Results are commonly expressed in millimeters per square metre. This standard has been approved for use by agencies of the Department of Defense. The sum of all lengths for each specimen shall be determined and expressed as total length per area inspected.
Other methods of sampling shall be as agreed upon between manufacturer and purchaser. A minimum 3 to 1 reduction of rolled billets or forged sections is required for asym cast products. Intentional additions of calcium or calcium alloys for deoxidation or inclusion shape control are not permitted unless speci? Decarburization shall be measured using the microscopical methods described in Test Method E The supplier shall be required to report results of the macroetch and micro-inclusion rating tests detailed below.
At least one sample shall be taken from each strand.
Other compositions may be speci? The magnetic particle method measures bearing steel cleanliness by evaluating the total length of macro-inclusions for a stated area or per unit area. Link to Active This link will always route to the current Active version of the standard.
When so included, a supplementary requirement shall have the same force as if it were in the body of the speci? Historical Version s – view previous versions of standard. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
One ingot shall be taken at random from the? A number in parentheses indicates the year of last reapproval.
ASTM A 高碳耐磨轴承钢技术规范_百度文库
Fields with sizes or numbers of all types of inclusions intermediate between con? Quality tests shown in 7. The polished face shall be longitudinal to the direction of rolling. All tests and inspections shall be made at the place of manufacture, unless otherwise agreed to.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Sizes, Shapes, and Dimensional Tolerances 6. Originally published as A — 46 T. D Oxygen content applies to product analysis and shall be determined in accordance with Test Method E 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.