ASTM B695-04(2016)

Standard Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel

ABSTRACT
This specification covers the requirements for zinc coatings that are mechanically deposited on iron or steel basis metals. The zinc coatings are classified according to thickness and identified into two types; as coated without supplementary treatments or with colored chromate conversion treatment. The thickest coating classes are usually referred to as "mechanically galvanized". All deposited coatings should have a bright uniform silvery appearance, and a matte to medium-bright luster. Samples should be tested for adhesion, salt-spray corrosion resistance, appearance, thickness, and absence of hydrogen embrittlement. All tests results should comply with the given requirements.
SCOPE
1.1 This specification covers the requirements for a coating of zinc mechanically deposited on iron and steel basis metals. The coating is provided in several thicknesses up to and including 107 μm. The seven thickest classes are usually referred to as “mechanically galvanized.”  
1.2 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.
Note 1: The performance of this coating complies with the requirements of Specification A153/A153M and MIL-C-81562.  
1.3 The values stated in SI units are to be regarded as the standard. The inch-pound equivalents of SI units are given for informational purposes.

General Information

• Status: Historical
• Publication Date: 31-Oct-2016
• ICS: 25.220.40 - Metallic coatings
• Technical Committee: B08 - Metallic and Inorganic Coatings
• Drafting Committee: B08.06 - Soft Metals

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:B695 −04 (Reapproved 2016)
Standard Specification for
1
Coatings of Zinc Mechanically Deposited on Iron and Steel
This standard is issued under the fixed designation B695; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope A490Specification for Structural Bolts, Alloy Steel, Heat
Treated, 150 ksi Minimum Tensile Strength (Withdrawn
1.1 This specification covers the requirements for a coating
3
2016)
of zinc mechanically deposited on iron and steel basis metals.
A563Specification for Carbon and Alloy Steel Nuts
The coating is provided in several thicknesses up to and
B117Practice for Operating Salt Spray (Fog) Apparatus
including 107 µm. The seven thickest classes are usually
B183Practice for Preparation of Low-Carbon Steel for
referred to as “mechanically galvanized.”
Electroplating
1.2 This standard does not purport to address all of the
B242Guide for Preparation of High-Carbon Steel for Elec-
safety concerns, if any, associated with its use. It is the
troplating
responsibility of the user of this standard to establish appro-
B322Guide for Cleaning Metals Prior to Electroplating
priate safety and health practices and determine the applica-
B487Test Method for Measurement of Metal and Oxide
bility of regulatory limitations prior to use.
Coating Thickness by Microscopical Examination of
NOTE 1—The performance of this coating complies with the require- Cross Section
ments of Specification A153/A153M and MIL-C-81562.
B499Test Method for Measurement of CoatingThicknesses
by the Magnetic Method: Nonmagnetic Coatings on
1.3 The values stated in SI units are to be regarded as the
Magnetic Basis Metals
standard. The inch-pound equivalents of SI units are given for
B571Practice for Qualitative Adhesion Testing of Metallic
informational purposes.
Coatings
2. Referenced Documents B602Test Method for Attribute Sampling of Metallic and
Inorganic Coatings
2
2.1 ASTM Standards:
B697Guide for Selection of Sampling Plans for Inspection
A153/A153MSpecification for Zinc Coating (Hot-Dip) on
of Electrodeposited Metallic and Inorganic Coatings
Iron and Steel Hardware
B762Test Method of Variables Sampling of Metallic and
A194/A194MSpecification for Carbon Steel, Alloy Steel,
Inorganic Coatings
and Stainless Steel Nuts for Bolts for High Pressure or
F1470Practice for Fastener Sampling for Specified Me-
High Temperature Service, or Both
chanical Properties and Performance Inspection
A325Specification for Structural Bolts, Steel, Heat Treated,
2.2 Military Standard:
120/105 ksi Minimum Tensile Strength (Withdrawn
3 MIL-C-81562 Coating, Cadmium, Tin Cadmium and Zinc
2016)
4
(Mechanically Deposited)
2.3 AISC Standard:
Specifications for Structural Joints Using ASTM A325 or
1
This specification is under the jurisdiction of ASTM Committee B08 on
5
A490 Bolts
Metallic and Inorganic Coatings and is the direct responsibility of Subcommittee
B08.06 on Soft Metals.
3. Classification
Current edition approved Nov. 1, 2016. Published November 2016. Originally
approvedin1982.Lastpreviouseditionapprovedin2009asB695–04(2009).DOI:
3.1 Classes—Zinc coatings are classified on the basis of
10.1520/B0695-04R16.
thickness, as follows:
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
4
Standards volume information, refer to the standard’s Document Summary page on Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
the ASTM website. Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098
3 5
The last approved version of this historical standard is referenced on Available from American Institute of Steel Construction (AISC), One E.
www.astm.org. Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B695−04 (2016)
6.2.1 Stress-Relief Treatment—All steel parts that have an
Class Minimum Thickness, µm
110 107
ultimate tensile strength of 1000 MPa and above and that
80 81
contain tensile stresses caused by machining, grinding,
70 69
straightening, or cold-forming operation shall be given a
65 66
55 53
stress-relief heat treatment prior to cleaning and metal deposi-
50 50
tion. The temperature and time at temperature shall be 190 6
40 40
15°C for a minimum of3hso that maximum stress relief is
25 25
12 12
obtained without reducing the hardness below the specified
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B695 − 04 (Reapproved 2009) B695 − 04 (Reapproved 2016)
Standard Specification for
1
Coatings of Zinc Mechanically Deposited on Iron and Steel
This standard is issued under the fixed designation B695; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
1.1 This specification covers the requirements for a coating of zinc mechanically deposited on iron and steel basis metals. The
coating is provided in several thicknesses up to and including 107 μm. The seven thickest classes are usually referred to as
“mechanically galvanized.”
1.2 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.
NOTE 1—The performance of this coating complies with the requirements of Specification A153/A153M and MIL-C-81562.
1.3 The values stated in SI units are to be regarded as the standard. The inch-pound equivalents of SI units are given for
informational purposes.
2. Referenced Documents
2
2.1 ASTM Standards:
A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
A194/A194M Specification for Carbon Steel, Alloy Steel, and Stainless Steel Nuts for Bolts for High Pressure or High
Temperature Service, or Both
3
A325 Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength (Withdrawn 2016)
3
A490 Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength (Withdrawn 2016)
A563 Specification for Carbon and Alloy Steel Nuts
B117 Practice for Operating Salt Spray (Fog) Apparatus
B183 Practice for Preparation of Low-Carbon Steel for Electroplating
B242 Guide for Preparation of High-Carbon Steel for Electroplating
B322 Guide for Cleaning Metals Prior to Electroplating
B487 Test Method for Measurement of Metal and Oxide Coating Thickness by Microscopical Examination of Cross Section
B499 Test Method for Measurement of Coating Thicknesses by the Magnetic Method: Nonmagnetic Coatings on Magnetic Basis
Metals
B571 Practice for Qualitative Adhesion Testing of Metallic Coatings
B602 Test Method for Attribute Sampling of Metallic and Inorganic Coatings
B697 Guide for Selection of Sampling Plans for Inspection of Electrodeposited Metallic and Inorganic Coatings
B762 Test Method of Variables Sampling of Metallic and Inorganic Coatings
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
2.2 Military Standard:
4
MIL-C-81562 Coating, Cadmium, Tin Cadmium and Zinc (Mechanically Deposited)
1
This specification is under the jurisdiction of ASTM Committee B08 on Metallic and Inorganic Coatings and is the direct responsibility of Subcommittee B08.06 on Soft
Metals.
Current edition approved Sept. 1, 2009Nov. 1, 2016. Published December 2009November 2016. Originally approved in 1982. Last previous edition approved in 20042009
as B695– 04.– 04(2009). DOI: 10.1520/B0695-04R09.10.1520/B0695-04R16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
B695 − 04 (2016)
2.3 AISC Standard:
5
Specifications for Structural Joints Using ASTM A325 or A490 Bolts
3. Classification
3.1 Classes—Zinc coatings are classified on the basis of thickness, as follows:
5
Available from American Institute of Steel Construction (AISC), One E. Wacker Dr., Suite 700, Chicago, IL 60601-2001, http://www.aisc.org.
2

---------------------- Page: 2 ----------------------
B695 − 04 (2016)
Class Minimum Thickness, μm
110 107
80 81
70 69
65 66
55 53
50 50
40 40
25 25
12 12
8 8
...