ASTM A903 PDF

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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Material Testing The following standards are used to specify the various nondestructive testing methods that can be used for inspecting vehicle components. Non Destructive Testing The following standards define specific techniques and standards used for acceptance of nondestructive testing.

This specification covers acceptance criteria for the surface inspection of steel castings when nondestructively examined by magnetic particle or liquid penetrant inspection. This standard defines the terminology used in the standards prepared by the E07 Committee on Nondestructive Testing. These nondestructive testing NDT methods include: This practice establishes the minimum requirements for conducting liquid penetrant examination of nonporous metal, and nonmetal components.

The penetrant examination processes described in this practice are applicable to in-process, final, and maintenance in-service inspections. These processes are applicable for the detection of discontinuities, such as lack of fusion, axtm, cracks, laps, cold shuts, and porosity, that are open or connected to the surface of the component under examination.

Specify standard, Type of dye, Method, and Sensitivity Usage: This test method covers procedures for penetrant examination of materials. They are nondestructive testing methods for detecting discontinuities that are open to the surface s903 as cracks, seams, laps, cold shuts, laminations, through leaks, or lack of fusion and are applicable to in-process, final, and maintenance examination.

They can be effectively used in the examination of nonporous, metallic materials, both ferrous and nonferrous, and of nonmetallic a930 such as glazed or fully densified ceramics, certain nonporous plastics, and glass. Specify standard, Type of dye, Method, and Criteria Usage: Reference photographs are supplied as a means of establishing types and characteristics of surface discontinuities detectable by the penetrant inspection methods.

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Actual dimensions including maximum length of indications and number of indications per unit area must be specified by the users of this document. No attempt has been made to establish limits of acceptability or the metallurgical cause of a discontinuity.

Specify standard name, desired criteria if any Aastm This guide describes techniques for both dry and wet magnetic particle examination, a nondestructive method for detecting cracks and other discontinuities at or near the surface in ferromagnetic materials. Magnetic particle examination may be applied to raw material, semifinished material billets, blooms, castings, and forgingsfinished material and welds, regardless of heat treatment or lack thereof.

ASTM A903/A903M – 99(2017)

It is useful for preventive maintenance examination. This standard guide is referenced by the more specific ASTM magnetic particle examination standards and procedures. This practice establishes minimum requirements for magnetic particle examination used for the detection of surface or slightly subsurface discontinuities in ferromagnetic material. Guide E can be used in conjunction with this practice as a tutorial.

The magnetic particle examination method is used to detect cracks, laps, seams, inclusions, aetm other discontinuities on or near the surface of ferromagnetic materials. Magnetic particle examination may be applied to raw material, billets, finished and semifinished materials, welds, and in-service parts.

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

This test method provides a procedure for magnetic particle examination of steel forgings. This standard does not contain acceptance standards or recommended quality levels. 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. Alternating current is not permitted because its capability to detect subsurface discontinuities is very limited and therefore unsuitable.

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This test method covers a procedure for the magnetic particle examination of steel forgings using alternating current as the power source.

Only alternating cycle current shall be used as the electric power source for any of the magnetizing methods. The ability to detect subsurface discontinuities is very limited when using an alternating power source, and therefore the test surfaces should be in aa903 final thermally treated and finish machined condition. The following standards define specific techniques and standards used for acceptance of nondestructive testing. Nondestructive testing methods discussed are Liquid Penetrantand Magnetic Particle.

The following standards define specific techniques and standards axtm for liquid penetrant type, nondestructive testing methods that can be used for inspecting vehicle components.

ASTM-A, –

Liquid penetrant examination is suitable for determining surface discontinuities on both ferrous and non-ferrous metals, and other materials. The following standards define specific techniques and standards used for magnetic particle type, nondestructive testing methods, that can be used for inspecting vehicle components.

Magnetic particle examination is not applicable to nonferromagnetic metals and alloys. 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.

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