ASTM F1136M-10

Standard Specification for Zinc/Aluminum Corrosion Protective Coatings for Fasteners [Metric] (Withdrawn 2011)

ABSTRACT
This specification covers the basic requirements and associated test methods for water-based corrosion protective zinc/aluminum dispersion inorganic basecoats, and optional sealers and topcoats for fasteners. The basecoat can contain chrome (C) or be non-chrome (NC). These coatings are applied to ferrous parts by conventional dip-spin, dip-drain, or spray methods, which can be handled through a cleaning, coating, and baking operation, and which are not adversely affected by baking temperatures up to 330 °C. The coatings are classified into six grades (Grades 1 to 6) according to the required minimum basecoat thickness, and when tested, shall conform accordingly to appearance, adhesion, corrosion resistance, blister, thread fit, and hydrogen embrittlement requirements. The coating process does not induce the possibility of internal hydrogen embrittlement provided that the fasteners have not been cleaned or pre-treated with an acid or phosphate. Alkaline cleaning or vapor degreasing is required along with shot blasting to remove rust or scale. In this specification, units are presented in the metric scale.
SCOPE
1.1 This specification covers the basic requirements for water-based zinc/aluminum dispersion inorganic basecoats and optional sealers and topcoats for fasteners. The basecoat can contain chrome (C) or be non-chrome (NC).
1.2 These coatings are applied by conventional dip-spin, dip-drain, or spray methods to ferrous parts which can be handled through a cleaning, coating, and baking operation, and which are not adversely affected by baking temperatures up to 330°C.
1.3 The coating process does not induce the possibility of internal hydrogen embrittlement providing that the fasteners have not been cleaned or pre-treated with an acid or phosphate. Alkaline cleaning or vapor degreasing is required along with shot blasting to remove rust or scale.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
WITHDRAWN RATIONALE
This specification covers the basic requirements for water-based zinc/aluminum dispersion inorganic basecoats and optional sealers and topcoats for fasteners. The basecoat can contain chrome (C) or be non-chrome (NC).
Formerly under the jurisdiction of Committee F16 on Fasteners, this specification was withdrawn in November 2011 and replaced by Specification F1136/F1136M.

General Information

• Status: Withdrawn
• Publication Date: 30-Nov-2010
• Withdrawal Date: 13-Dec-2011
• ICS: 25.220.40 - Metallic coatings
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.03 - Coatings on Fasteners

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F1136M – 10
Standard Specification for
Zinc/Aluminum Corrosion Protective Coatings for Fasteners
1
(Metric)
This standard is issued under the fixed designation F1136M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* Washers, and Rivets (Metric)
F1470 Practice for Fastener Sampling for Specified Me-
1.1 This specification covers the basic requirements for
chanical Properties and Performance Inspection
water-based zinc/aluminum dispersion inorganic basecoats and
F1624 Test Method for Measurement of Hydrogen Em-
optional sealers and topcoats for fasteners. The basecoat can
brittlement Threshold in Steel by the Incremental Step
contain chrome (C) or be non-chrome (NC).
Loading Technique
1.2 These coatings are applied by conventional dip-spin,
F1789 Terminology for F16 Mechanical Fasteners
dip-drain, or spray methods to ferrous parts which can be
F1940 Test Method for Process Control Verification to
handled through a cleaning, coating, and baking operation, and
Prevent Hydrogen Embrittlement in Plated or Coated
which are not adversely affected by baking temperatures up to
Fasteners
330°C.
1.3 The coating process does not induce the possibility of
3. Classification
internal hydrogen embrittlement providing that the fasteners
3.1 Thesecoatingsareclassifiedintosixgradesaccordingto
have not been cleaned or pre-treated with an acid or phosphate.
the requirements in Table 1.
Alkaline cleaning or vapor degreasing is required along with
3.1.1 Grade 1 requires a minimum basecoat thickness of 4
shot blasting to remove rust or scale.
2
µm(16g/m ).Thisisusuallyappliedintwocoatstobulkparts,
1.4 The values stated in SI units are to be regarded as
or one coat to racked parts. No topcoat is applied in Grade 1.
standard. No other units of measurement are included in this
3.1.2 Grade 2 requires a minimum basecoat thickness of 5
standard.
2
µm(20g/m ).Thisisusuallyappliedintwocoatstobulkparts,
1.5 This standard does not purport to address all of the
or one coat to racked parts. No topcoat is applied in Grade 2.
safety concerns, if any, associated with its use. It is the
3.1.3 Grade 3 requires a minimum basecoat thickness of 5
responsibility of the user of this standard to establish appro-
2
µm (20 g/m ) and a single coat of the clear sealer. The sealer
priate safety and health practices and determine the applica-
provides additional corrosion protection and greater lubricity
bility of regulatory limitations prior to use.
than Grade 2.
2. Referenced Documents 3.1.4 Grade 4 requires a minimum basecoat thickness of 8
2
2 µm (28 g/m ). This is usually applied in three coats to bulk
2.1 ASTM Standards:
parts, or one to two coats to racked parts. No topcoat is applied
B117 Practice for Operating Salt Spray (Fog) Apparatus
in Grade 4.
D610 Practice for Evaluating Degree of Rusting on Painted
3.1.5 Grade 5 requires a minimum basecoat thickness of 5
Steel Surfaces
2
µm (20 g/m ) and a single coat of the lubricated sealer. The
D3359 Test Methods for Measuring Adhesion by Tape Test
sealer provides additional corrosion protection than Grade 2
F606M Test Methods for Determining the Mechanical
and greater lubricity than Grade 3.
Properties of Externally and InternallyThreaded Fasteners,
3.1.6 Grade 6 requires a minimum basecoat thickness of 5
2
µm (20 g/m ) with various pigmented topcoats applied. The
1
This specification is under the jurisdiction of ASTM Committee F16 on
topcoats can be black or various other colors.
Fasteners and is the direct responsibility of Subcommittee F16.03 on Coatings on
Fasteners.
4. Ordering Information
Current edition approved Dec. 1, 2010. Published January 2011. Originally
approved in 2004. Last previous edition approved in 2004 as F1136M–04. DOI:
4.1 Ordersforpartsunderthisspecificationshallincludethe
10.1520/F1136M-10.
following information:
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.1.1 Quantity of parts,
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4.1.2 Grade of coating as given in Table 1,
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website.
*A Summary of Changes section appears at the end of this standard.
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F1136M – 10
TABLE 1 Coating Classification
specified mechanical properties. Where mechanical properties
Minimum are not specified, oversizing is subject to the approval of the
Coating Coating
SST
Grade Th
...