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 such treatments for stainless steel parts.
DAVRO INC. - HomeDavro Inc. is ISO 9001:2015, AS9100D, and NADCAP Certified for Stainless steel passivation per QQ-P-35, AMS-QQ-P-35, PN14.10, AMS 2700 Rev E, ASTM A380, and ASTM A967 Specifications. We are also NADCAP certified for Electropolishing stainless steel to specifications such as ASTM B912 and for ium Alpha Case Removal/cleaning.
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Passivation - Eco FinishingOur Passivation Finishing Process. We can make stainless steel more corrosion-resistant through a process called passivation. It is a non-electrolytic finishing process that involves removing the free iron from the surface of the metal using a chemical solution of citric acid or nitric acid. When the surface iron is removed, the other components of the alloy (mainly chromium, often nickel
Passivation Our Passivation Finishing Process. We can make stainless steel more corrosion-resistant through a process called passivation. It is a non-electrolytic finishing process that involves removing the free iron from the surface of the metal using a chemical solution of citric acid or nitric acid.
Passivation Hudson Plating WorksPassivation is performed in accordance with ASTM A967, QQ-P-35, AMS 2700, ASTM A380 and ASTM F86, as well as, many other industry and customer-specific standards. Full in-house testing services certifies specification compliance including water immersion, high humidity, salt spray, copper sulfate, or potassium ferricyanide testing
Passivation Santa Clara PlatingSelection of the correct passivation process is determined by the stainless steel alloy involved and by the specification requirements. We have incorporated most alloy specific passivation processes as specified by AMS2700E, AMS-QQ-P-35, ASTM A967-35 and ASTM A380-13 to meet our customers needs.
The following specs refer to QQ-P-35 for passivation of stainless steel and thus allow the use of ASTM A967 and ASM 2700:MIL-STD-808A / MIL-HDBK-808 (section 220.127.116.11.1, Table II. finish code numbers F-200, F-201, F-202, F-203, F-204, Table VIII. finish code number D-200)
Passivation of Stainless Steel Accurate Metal FinishingPassivation to QQ-P-35. QQ-P-35 does not cover citric acid passivation services. Four active nitric acid passivation services are covered as follows (four inactive methods have been withdrawn):Type I Withdrawn; Type II 20-25 v% Nitric, 2-2.5 w% Sodium Dichromate, 120-130F, 20 Mins minimum; Type III Withdrawn; Type IV Withdrawn
QQ-P-35 C NOTICE-1 PASSIVATION TREATMENTS STEELQQ-P-35C (NOTICE 1), FEDERAL SPECIFICATION:PASSIVATION TREATMENTS FOR CORROSION-RESISTANT STEEL (04 APR 1997) [S/S BY ASTM-A967 OR SAE-AMS-QQ-P-35]., Federal Specification QQ-P-35C, dated October 28, 1988, is hereby canceled. This federal specification is superseded by ASTM A 967-96, "Standard Specification for Chemical
Nitric acid has been the preferred passivation system for the longest time due to QQ-P-35, the governmental specification for passivation until 2005 when it was replaced by ASTM A967 that allows the old nitric passivation and the new citric passivation.
What is Passivation? How Does Stainless Passivation Work?Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems. Refers to ASTM A967 for specifics of how to perform passivation; AMS-QQ-P-35 (superseded) Passivation Treatments for Corrosion-Resistant Steel. Takes the place of MIL-QQ-P-35, but has since been replaced with AMS 2700; ASTM F86
Whatever happened to QQ-P-35, Passivation Treatments for Sep 11, 1998 · Thus the final migration to an industry standard was made possible. So now, the current replacements for QQ-P-35 are the ASTM A967, Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts, and AMS 2700, Passivation of Corrosion Resistant Steels.
Passivation ASTM A380, ASTM A967, QQ-P-35C, BS EN 2516 The process of passivation, is a post-fabrication acid treatment that removes "free iron" contamination left behind on the surface of the stainless steel wire from machining and fabricating. It is not a scale removal treatment, nor is it like a coat of paint.