تاریخچه ی ASTM. گروهی از مهندسان و دانشمندان به رهبری چارلز دادلی (Charles Dudley) در سال 1898 ASTM را برای جلوگیری از شکست ریل های راه آهن به وجود آوردند. این گروه یک استاندارد برای فولاد را توسعه داد که

ASTM A967-2001 . This standard is issued under the fixed designation A 967; 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

ASTM A967, 2005 Edition, September 1, 2005 - Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts. This specification covers several different types of chemical passivation treatments for stainless steel parts. It includes recommendations and precautions for descaling, cleaning, and passivation of stainless …

ASTM A967-01E1. Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts. ASTM International / 10-Oct-2001 / 6 pages. REPLACED by ASTM A967-05. 1.1 This specification covers several different types of chemical passivation treatments for stainless steel parts. It includes recommendations …

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in 1996. Last previous edition approved in 2013 as A967/A967M – 13. DOI: 10.1520/A0967-17. 2 For referenced ASTM standards, visit the ASTM website,, or contact ASTM Customer Service at [email protected]. For Annual Book of ASTM

ASTM A967.pdf - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Designation: A 967 05e1 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts1 This …

ASTM A967-01 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts 1. Scope 범위) * Stainless Steel 의 descaling, cleaning, passivation 에 대한 권고 및 예방책을 제시한다. * Stainless Steel 에 대한 descaling, cleaning후 효과를

ASTM A967/A967M-17 2017 ASTM A967/A967M-17 ASTM A380/A380M ASTM B117 ASTM B254 ASTM B600 …

Chemical Passivation Treatments for Stainless Steel Parts1. This standard is issued under the fixed designation A967/A967M; the number immediately following the designation indicates the year. of original adoption or, in the …

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ASTM A967-2001 Annual Book o ASTM Standards, Vol 01.03. Annual Book of ASTM Standards, Vol 03.02. Annual Book of …

ASTM A967-17_ A967M 2017().pdf

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AMS 2700. This is a standard used by the aerospace industry to describe and control the passivation of stainless steel. Passivation is a process of making stainless steel more stainless (rust-resistant) than it would be if left alone. It is not a coating and does not change any part's dimensions.

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Passivation of Stainless Steel to ASTM A967. Five nitric and citric methods are listed as follows: Nitric 1: 20-25 v% Nitric Acid, 2.5 w% Sodium Dichromate, 120-130F, 20 Mins minimum. Nitric 2: 20-45 v% Nitric Acid, …

Designation: A967/A967M−17 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts1 This standard is issued under the fixed designation …

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ASTM A967 defines seven tests for verification that a suitable passive surface has been formed on the component surface. These tests are all qualitative. Although some tests can more precisely detect the amount of free iron remaining on a surface, they are meant to serve as a go, no-go test for passivation. Water immersion test.

The parts shall then be thoroughly dried. 10.3The purchaser may specify other post-cleaning treat-ments. 11.Finish 11.1The passivated parts shall exhibit a chemically clean surface and shall,on visual inspection,show no etching, pitting,or frosting resulting from the passivation procedures. 12.Testing Agency 12.1When required,the purchaser

ASTM A967 passivation treatments: This standard covers both nitric and citric acid treatments. The nitric acid treatments are similar to those identified in ASTM A380. In addition, this standard also includes citric acid …

ASTM A967-01e1. Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts. ASTM International / 10-Oct-2001 / 6 pages. REPLACED byASTM A967-05. 1.4 The tests in this specification are intended to confirm the effectiveness of passivation, particularly with regard to the removal of free iron and other exogenous matter.