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ASTM-F1941:2007 Edition

ASTM-F1941:2007 Edition

$31.25

F1941-07 Standard Specification for Electrodeposited Coatings on Threaded Fasteners (Unified Inch Screw Threads (UN/UNR))

Published By Publication Date Number of Pages
ASTM 2007 10
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1.1 This specification covers application, performance and dimensional requirements for electrodeposited coatings on threaded fasteners with unified inch screw threads. It specifies coating thickness, supplementary hexavalent chromate or trivalent chromite finishes, corrosion resistance, precautions for managing the risk of hydrogen embrittlement and hydrogen embrittlement relief for high-strength and surface-hardened fasteners. It also highlights the differences between barrel and rack plating and makes recommendations as to the applicability of each process.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 The following precautionary statement pertains to the test method portion only, Section 9, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
2 Terminology
Classification
Ordering Information for Electroplating
FIG. 1
FIG. 2
TABLE 1
TABLE 2
3 Requirements
TABLE 3
4 Dimensional Requirements
Sampling
Test Methods
Electroplating Processes
5 A1. NEUTRAL SALT SPRAY PERFORMANCE
A1.1
TABLE A1.1
6 TABLE A1.2
TABLE A1.3
7 X1. STANDARD ELECTRODEPOSITION PROCESSES
X1.1 Barrel-Plating Process
X1.2 Rack-Plating Process
X2. GUIDELINES FOR CHOOSING BETWEEN BARREL-PLATING AND RACK-PLATING
X2.1
X2.2
TABLE A1.4
8 X3. COATING ACCOMMODATION TOLERANCES FOR EXTERNALLY AND INTERNALLY THREADED FASTENERS
X3.1
X3.2
TABLE X2.1
TABLE X2.2
TABLE X3.1
9 X3.3
X3.4
X4. APPLICATION REQUIREMENTS
X4.1 Cleaning of Basis Metal
X4.2 Hydrogen Embrittlement Risk Management
TABLE X3.2
TABLE X3.3
TABLE X3.4
FIG. X3.1
10 X5. USE OF TRIVALENT CHROMIUM (Cr+3) ON COATED FASTENERS
X5.1

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