What is ASTM A967?
1. Passivation Process: ASTM A967 defines the passivation process as the removal of free iron or other foreign matter from the surface of stainless steel by means of a chemical treatment. This treatment encourages the formation of a passive oxide layer, strengthening the steel's resistance to corrosion. 2.
A380/A380M Standard Practice for Cleaning
1.1 This practice covers recommendations and precautions for cleaning, descaling, and passivating of new stainless steel parts, assemblies, equipment, and installed systems. These recommendations are presented as procedures for guidance when it is recognized that for a particular service it is desired to remove surface contaminants that …
D5907 Standard Test Methods for Filterable Matter
1.1 These test methods cover the determination of filterable matter, total dissolved solids (TDS), and nonfilterable matter, total suspended solids (TSS), in drinking, surface, and saline waters, domestic and industrial wastes. The practical range of the determination of nonfilterable particulate matter (TSS) is 4 to 20 000 mg/L. The practical …
Unpacking ASTM A967
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.
ASTM International
ASTM A967/A967M-17 July 1, 2017 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts 1.1 This specification covers several different types of chemical passivation treatments for stainless steel parts. It includes recommendations and precautions for descaling, cleaning, and...
ASTM A967/A967M-13
1.6 The following precautionary caveat pertains only to the test method portions, Section 14 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 …
ASTM A 967/A967M : 2017 | Chemical Passivation …
ASTM A 967/A967M : 2017. Current. Add to Watchlist. Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts. Available format (s): Hardcopy, PDF. Language (s): English. Published date: 07-01-2017. Publisher: American Society for Testing and Materials.
Passivation of Aerospace Stainless Steel Parts with Citric …
ASTM B 117 salt spray testing for 2 to 3 hours, and then evaluated for signs of red rust. Red rust is considered a failure for passivation. In addition, the stainless steel test specimens were also examined for signs of IGA (intergranular attack) and pitting after being treated in the optimized nitric, optimized citric acid, and 3
Standard ASTM A967/A967M-17
ASTM A967/A967M-17. July 2017. Standard Current. Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts. 1.1 This specification covers several …
Understanding QQ-P-35: The Predecessor of ASTM A967 …
For example, ASTM A967 contains more options for passivation verification tests while AMS2700 provides more guidance on sampling large batches of components for testing and inspection after passivation. As the most direct linear descendant of QQ-P-35, AMS 2700 naturally shows its "heritage". QQ-P-35 types II, VI, VII and VIII are equivalent ...
Norme ASTM A967/A967M-17
Normes remplacées (1) ASTM A967/A967M-13. février 2013. Norme Annulée. Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts. 1.1 This …
Lockheed Martin Lessons Learned Stainless Steel …
QQ-P-35 has been cancelled and superseded by ASTM A967 or AMS-QQ-P-35. AMS-QQ-P-35 has been cancelled and superseded by AMS 2700. AMS-QQ-P-35 Type Superseding AMS 2700 Type II 2 VI 6 VII 7 VIII 8 Not Specified Use type appropriate for alloy, subject to purchaser acceptance. This document is written in accordance with the requirements of …
Passivation Standards | Stellar Solutions
The following spec refers to ASTM A380 for passivation of stainless steel and thus allows the use of ASTM A967: MIL-DTL-14072D/E/F (Table IV. Finish E300) The spec MIL-T-704K in section 3.2.6 directly describes a passivation process analogous to QQ-P-35's type II followed by a chromate post-treatment. However, QQ-P-35 assigns this process as ...
ASTM A967 Passivation Standards | Able Electropolishing
The ASTM A967 passivation standard applies to the cleaning, passivation and testing of stainless steel parts. Chemical passivation removes free iron and other surface contaminants from stainless steel parts, improving corrosion resistance. Stainless steel passivation performed to the ASTM A967 standards meets these standards by passing …
プロセス | Vaisala
は、ASTM A967やASTM F86–13などのさまざまなにってわれます。. その、とにするがく、およびでのにながられます。. アプリケーションノートをダウンロードし、ヴァイサラ K ...
· ASTM A 967-05 SPECIFICATIONS · QQ-P-35C/AMS-QQ …
35A, AMS 2700C, ASTM A 967-05 and ASTM A 380-06 standards. Passivation alone will not remove heavy adherent oxide films created from heat treatment, welding, hot-forming and other high-temperature operations. Therefore AST uses different types of pickling acids designed to remove these films prior to the Passivation of the parts.
ASTM A 380/A380M : 2017 | Stainless Steel Cleaning | SAI …
Buy ASTM A 380/A380M : 2017 practice for cleaning, descaling, and passivation of stainless steel parts, equipment, and systems standard from ASTM. ... (See also Specification A967/A967M.) 1.1.1.3 Passivation is the chemical treatment of a stainless steel with a mild oxidant, such as a nitric acid solution, for the purpose of enhancing the ...
Passivation of Corrosion Resistant Steels
Both AMS 2700 and ASTM A967 base their nitric acid passivation methods on using 42° Baume nitric acid. The Baume scale is a measurement of specific gravity. Positive degrees of Baume indicate chemicals or solutions denser than water. 42° Baume nitric acid corresponds to a 1.4 specific gravity solution of nitric acid that is roughly 67% …
ASSIST-QuickSearch Document Details
Chemical Passivation Treatments for Stainless Steel Parts (Replaced by ASTM-A967/A967M) Scope: This specification covers several different types of chemical …
WK84146 Revision of A967/A967M-17 Standard
Revision of A967/A967M-17 Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts. Rationale. A967 was developed for replacement of Mil QQ-P 35. As part of the development, the word "dissolved" appears to be accidental dropped in para. 7.2. for the description of clean water. ... ASTM offers descriptions of …
ASTM A967/A967M-17
Full Description. 1.1 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 steel parts. It includes several alternative tests, with acceptance criteria, for confirmation of effectiveness of ...
ASTM-A967 ADOPTION NOTICE STANDARDIZATION …
ASTM-A967, "Standardization Specification for Chemical Passivation Treatments for Stainless Steel Parts", was adopted on 31-MAR-97 for use by the Department of Defense (DoD). Proposed changes by DoD activities must be submitted to the DoD Adopting Activity: Defense Supply Center Richmond, Attn: DSCR-VFT/VEA, Richmond, VA 23297-5610.
Standard Test Method for Compressive Strength of …
Scope. 1.1 This test method covers determination of compressive strength of cylindrical concrete specimens such as molded cylinders and drilled cores. It is limited to concrete having a density in excess of 800 kg/m 3 [50 lb/ft 3 ]. 1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard.
A967 Standard Specification for Chemical
Scope. 1.1 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 steel parts. It includes several alternative tests, with acceptance criteria, for confirmation of effectiveness of …
Stainless Steel Passivation Services
Delstar is the industry leader in stainless steel passivation services, delivering the highest quality of passivated products to our customers since 2002. Here at Delstar Metal Finishing, we offer stainless steel passivation services with a focus on ASTM A967, ASTM A380, ASTM B912, and QQP35C specifications. Call or contact us today to speak to ...
ASTM A967: Chemical Passivation Treatments for
astm a967은 스테인리스 강 부품의 화학적 패시베이션 처리에 관한 표준입니다. 패시베이션 처리란 스테인리스 강 표면에서 자유 철과 다른 표면 오염물을 화학적으로 제거하여 부식 저항성을 향상시키는 과정으로 …
Passivation | ASTM A967 | AMS 2700 | ASTM F86 | QQ-P-35 …
ASTM A967/A967M-17 (CITRIC ACID) 7.1.1.1 Citric 1—The solution shall contain 4 to 10 weight percent of citric acid. The parts shall be immersed for a minimum of 4 min at a temperature in the range from 60 to 70°C [140 to 160°F] 7.1.1.2 Citric 2—The solution shall contain 4 to 10 weight percent of citric acid.
Chemical Passivation Treatments for Stainless Steel Parts
A 967 2 3. Terminology 3.1 Definition of Term Specific to This Standard—It is necessary to define which of the several commonly used definitions of the term passivation will be …
ASTM A967 and AMS 2700 Standards for Passivation
ASTM A967. General industries use this standard to describe and control the passivation of stainless steel. Passivation is a process of making stainless steel more stainless than it would be if left alone. It is based on using an acid (nitric or citric) under highly controlled conditions to remove free iron particles from the surface and to help form a metal oxide …
Norme ASTM A967/A967M-17
Normes remplacées (1) ASTM A967/A967M-13. février 2013. Norme Annulée. Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts. 1.1 This specification covers several different types of chemical passivation treatments for stainless steel parts. It includes recommendations and precautions for descaling, cleaning ...
(번역본)ASTM A967-01 Standard Specification for Chemical Passivation
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.