ASTM A SPECIFICATION FOR STEEL CASTINGS, SURFACE ACCEPTANCE STANDARDS, MAGNETIC PARTICLES AND LIQUID PENETRANT. ASTM AM _ 99 R03 by sekharsappa in Types > School Work and standard. Find the most up-to-date version of ASTM A/AM at Engineering
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Only direct current or rectified alternating full or half wave current shall be used as the electric power source for any of the magnetizing methods. These processes are applicable for the detection of discontinuities, such as lack of fusion, corrosion, cracks, laps, cold shuts, and porosity, that are open or connected to the surface of the component under examination.
Any indication in excess of the acceptance criteria which is believed to be false may be reexamined. Nondestructive testing methods discussed are Liquid Penetrantand Magnetic Particle. This abstract is a brief summary of the referenced standard.
If you like to setup a quick demo, let us know at support madcad. Additionally ferrous metals that have low magnetic permeability, or high alloy steels such as austenitic stainless steels, may be more effectively tested using dye penetrant methods. The values stated in each system are not exact equivalents; therefore each system must be used independently of the other. Individual relevant linear and nonlinear indications exceeding the specified acceptance levels shall be considered unacceptable.
Within the text the SI units are shown in brackets. They can be effectively used in the examination of nonporous, metallic materials, both ferrous and nonferrous, and of nonmetallic materials such as glazed or fully densified ceramics, certain nonporous plastics, and glass. The magnetic particle examination method is used to detect cracks, laps, seams, aatm, and other discontinuities on or near the surface of ferromagnetic materials.
FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. Combining values from the two systems may result in a nonconformance with this specification. This specification covers acceptance criteria for the surface inspection of steel castings when nondestructively examined by magnetic particle or liquid penetrant inspection. Specify standard, Type of dye, Method, and Criteria Usage: When agreed upon between the manufacturer and purchaser, ast liquid penetrant method may be used to verify the presence of surface discontinuities which had been previously indicated by the magnetic particle method.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. This standard guide is referenced by the more specific ASTM magnetic particle examination standards and procedures.
A number in parentheses indicates the year of last reapproval. Only alternating cycle current shall be used as the electric power source for any of the magnetizing methods. Enter your personal account email address to request a password reset: Within the text the SI units are shown in brackets. Land Use and Development. Link to Active This link will always route to the current Active version of the standard.
ASTM A AM() 钢铸件磁粉探伤和荧光渗透检验的表面验收标准_百度文库
Originally approved in Magnetic particle examination may be applied to raw material, billets, finished and semifinished materials, welds, and in-service parts. However, false indications may be produced by localized surface irregularities, metallurgical discontinuities, or magnetic permeability variations.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at x903 above address or at phonefaxor service astm. Guide E can be used in conjunction with this practice as a tutorial. Specify standard, Type of dye, Method, and Sensitivity Usage: The following standards define specific techniques and standards used for acceptance of nondestructive testing.
No items in cart. This practice establishes the minimum requirements for conducting liquid penetrant examination of nonporous metal, and nonmetal components. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
ASTM A903/A903M – 99(2017)
Material Testing The following standards are used to specify the various nondestructive testing methods that can be used for inspecting vehicle components. 9a03 your account email address to request a password reset: Liquid penetrant examination is suitable for determining surface discontinuities on both ferrous and non-ferrous metals, and other materials.
The values stated in each system are not exact equivalents; therefore each system must be used independently of the other. Actual dimensions including maximum length of indications and number of indications per unit area must be specified by the users of this document. Liquid penetrant inspection or magnetic particle inspection shall be used for nondestructive s903.