ASTM A479 PDF
July 26, 2020 | by admin
Application – A is the application of stainless steel just for use in boilers, etc. ASME A is for all applications of stainless steel bars and other shapes. A specifically defers bars for reforging and free machining grades to other ASTM standards (A and A/AM) while A is silent on. ASTM A Standard Specification for Stainless Steel Bars and Shapes_物理_ 自然科学_专业资料。Standard Specification for Stainless Steel.
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A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense.
Failure to comply with the general requirements of Speci? The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other. Combining values from the two systems may result in nonconformance with the speci?
Current edition approved June 15, Originally approved in Grain Size for Austenitic Grades 6. B Maximum unless otherwise indicated. C Except as required for speci? D American Welding Society designation.
ASTM A Bar, ASTM A Forged Bar, ASTM A UNS S Bar |
E See Supplementary Requirement S1. F Nitrogen content is to be reported for this grade. H Product analysis tolerance over the maximum limit for carbon and nitrogen to be 0. XM Up to 2 in.
Reduction of area does not apply on? C The material shall be capable of meeting the required reduction of area where listed, but actual measurement and reporting of the reduction of area are not required unless speci?
E Tensile strength 70 ksi [ MPa] min permitted for extruded shapes. F For bars greater than 2 in. G For sections over 2 in. H Elongation in 2 in. I Elongation in 2 in.
J Annealed bars shall be capable of meeting the tempered condition requirements when heat treated. Mechanical Properties Requirements 7. At least one room-temperature asgm shall be performed by the manufacturer on a sample from at least one bar or shape from each lot of material. A Samples for testing shall be in the form of a section not exceeding 3? Materials for High-Temperature Service S1. The grain size shall be reported on a Certi?
All austenitic stainless steels shall be capable of passing intergranular corrosion tests in the as-shipped condition. Tests shall be performed in accordance with Practice E of Practices A The analysis shall meet the requirements of Table 1.
In the event of failure, the lot represented shall be rejected except sstm, at the option of the manufacturer, each bar in the lot asm be tested for acceptance. Product analysis tolerance provisions do not apply. Bars furnished in lengths of 20 ft [6 m] and over shall be tested at each end. Straightening is permitted as a? Thus, solution annealing also can be accomplished for nonstabilized grades by taking advantage of hot rolling temperatures which always exceed solution annealing temperature requirementsmaintaining hot rolling?
Stabilized grades with columbium or titanium added cannot be handled this way, since they would become destabilized due to columbium or titanium carbide solution, without subsequent reheating. For that reason, a minimum grain size has been required of the H grades created for optimum elevated temperature propertiesand a mandatory grain size test and report has been added for the non—H grades so that the information is available for those desiring to reclassify a non—H grade to H grade.
Approved June 15, Approved March 15, Approved March 1, Heat treatment requirements added to 4. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
ASTM A479 Specifications
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