ASTM B849-02(2019)
Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
- Standard No.
- ASTM B849-02(2019)
- Release Date
- 2019
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM B849-02(2023)
- Latest
- ASTM B849-02(2023)
- Scope
- 1.1 This specification covers procedures for reducing the susceptibility or degree of susceptibility to hydrogen embrittlement or degradation that may arise in electroplating, autocatalytic plating, porcelain enameling, chemical conversion coating, and phosphating and the associated pretreatment processes. This specification is applicable to those steels whose properties are not affected adversely by baking at 190 to 230 °C or higher (see 6.1.1). 1.2 The heat treatment procedures established herein have been shown to be effective for reducing the susceptibility of steel parts of tensile strength 1000 MPa or greater that have been machined, ground, cold-formed, or cold-straightened subsequent to heat treatment. This heat-treatment procedure is used prior to any operation capable of hydrogen charging the parts, such as the cleaning procedures prior to electroplating, autocatalytic plating, porcelain enameling, and other chemical coating operations. NOTE 1—1 MPa = 145.1 psi. 1.3 This specification has been coordinated with ISO/DIS 9587 and is technically equivalent. 1.4 The values stated in SI units are to be regarded as the 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 1 This specification is under the jurisdiction of ASTM Committee B08 on Metallic and Inorganic Coatings and is the direct responsibility of Subcommittee B08.02 on Pre Treatment. Current edition approved April 1, 2019. Published April 2019. Originally approved in 1994. Last previous edition approved in 2013 as B849 – 02(2013). DOI: 10.1520/B0849-02R19. Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. 1 2. Referenced Documents
ASTM B849-02(2019) Referenced Document
- ASTM A919 Terminology Relating to Heat Treatment of Metals (Withdrawn 1999)
- ASTM B242 Standard Guide for Preparation of High-Carbon Steel for Electroplating*， 2020-11-01 Update
- ASTM B322 Standard Guide for Cleaning Metals Prior to Electroplating*， 2020-11-01 Update
- ASTM B374 Standard Terminology Relating to Electroplating
- ASTM B851 Standard Specification for Automated Controlled Shot Peening of Metallic Articles Prior to Nickel, Autocatalytic Nickel, or Chromium Plating, or as Final Finish
- ISO 2080 Metallic and other inorganic coatings — Surface treatment, metallic and other inorganic coatings — Vocabulary*， 2022-03-08 Update
ASTM B849-02(2019) history
- 2023 ASTM B849-02(2023) Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
- 2019 ASTM B849-02(2019) Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
- 2002 ASTM B849-02(2013) Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
- 2002 ASTM B849-02(2007) Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
- 2002 ASTM B849-02 Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
- 1994 ASTM B849-94 Standard Specification for Pre-Treatments of Iron or Steel for Reducing Risk of Hydrogen Embrittlement
