SAE AMS 2440A:2000 pdf download

SAE AMS 2440A:2000 pdf download Inspection of Ground, Chromium Plated Steel Parts
1 . SCOPE:
1 .1 Purpose: This specification covers the requirements, procedures, and accept/reject criteria for inspecting ground chromium plated surfaces for grinder-induced damage to the chromium plate and substructure.
1 .2 Application: This procedure has been typically used for nondestructive testing of heat treated, high strength, 1 80 ksi (1 240 MPa) or higher tensile strength, low-alloy steel parts which have been chromium plated and subsequently ground, but usage is not limited to such applications.
1 .2.1 It is possible to have areas of overheated chromium plate without damage to the substrate. Overheating sufficient to damage the substrate will be exhibited by indications in the ground chromium plated surface.
2. APPLICABLE DOCUMENTS: The issue of the following documents in effect on the date of the purchase order form a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been canceled and no superseding document has been specified, the last published issue of that document shall apply.
2.1 SAE Publications:
Available from SAE, 400 Commonwealth Drive, Warrendale, PA 1 5096-0001 .
AMS 2644 Inspection Material, Penetrant
AMS 2649 Etch Inspection of High Strength Steel Parts
AMS 3041 Magnetic Particles, Wet Method, Oil Vehicle
AMS 3042 Magnetic Particles, Nonfluorescent Wet Method, Dry Powder
2.1 (Continued):
AMS 3044 Magnetic Particles, Fluorescent, Wet Method, Dry Powder
AMS 3045 Magnetic Particles, Fluorescent, Wet Method, Oil Vehicle, Ready to Use
AMS 31 55 Oil, Fluorescent Penetrant, Solvent Soluble
AMS 31 57 Oil, Fluorescent Penetrant, High Fluorescence, Solvent Soluble
AMS 31 61 Oil, Odorless, Heavy Solvent
2.2 ASTM Publications:
Available from ASTM, 1 00 Barr Harbor Drive, West Conshohocken, PA 1 9248-2959.
ASTM E 1 41 7 Liquid Penetrant Examination
ASTM E 1 444 Magnetic Particle Examination
2.3 ASNT Publications:
Available from American Society for Nondestructive Testing, 41 53 Arlington Plaza, Columbus, OH 43221 .
SNT-TC-1 A Recommended Practice, Personnel Qualification and Certification in Nondestructive
Testing
3. TECHNICAL REQUIREMENTS:
3.1 Materials:
3.1 .1 Magnetic particle materials shall consist of an odorless inspection oil conforming to AMS 31 61 and magnetic particles conforming to AMS 3041 , AMS 3042, AMS 3044, or AMS 3045 as applicable.:
3.1 .2 Fluorescent penetrant materials, emulsifiers, and developers shall have high sensitivity and shall conform to the requirements of AMS 31 57 or AMS 2644 Type 1 Level 3 Form d or better. High sensitivity AMS 31 55 or AMS 2644 Level 2 penetrants may be used provided equivalent sensitivity to the Level 3 penetrant can be demonstrated in side-by-side tests using crack test specimens equivalent to those defined in AMS 2644. For such demonstrations, both penetrants shall be used with Form d nonaqueous wet developer.
3.2 Equipment and Lighting: Equipment and lighting shall meet the requirements of ASTM E 1 41 7 and ASTM E 1 444 as applicable.
3.3 Preparation of Parts:
3.3.1 Steel parts shall have been temper etch inspected in accordance with AMS 2649 and magnetic particle inspected in accordance with ASTM E 1 444 for damage prior to plating.