Passivating Services

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Passivated Parts
Passivated Parts

Electro-Spec, Inc. provides cost effective high volume passivating services for safety critical and high reliability stainless steel components. We provide a full range of passivation methods utilizing appropriate nitric acid solutions on parts up to 12" in width. The temperature, solution concentrations, and timing are adhered to as outlined for the type II, VI, VII, and VIII methods listed in AMS-QQ-P35 and QQ-P-35, and Nitric 1-5 in ASTM A 967. Passivating removes all impurities from parts and creates a hard non-reactive surface film a few atoms thick, providing resistance to oxidation, corrosion and mild chemical attack.

All passivated parts are treated to pass the testing requirements as specified such as salt spray, high humidity testing, and water immersion among others. Electro-Spec is an accomplished provider of world class plating services, with proven expertise serving the needs of such highly regulated and complex industries as aerospace, medical, the military, and radio frequency microwave. All products and processes are subject to stringent quality control methods and held to the highest industry standards. For more information about our premium passivating services or the other value added capabilities available please see the table below or contact us directly.


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Additional Information about our Passivating Services

Passivation Process

For stainless steel components, the passivation process protects against corrosion and oxidation. During passivation a transparent film forms on the surface of the component. This film occurs naturally on stainless steel, but the film occurs uniformly and quickly through the passivation process.

The passivation process improves the aesthetics of the components as well as improving the stainless steel’s properties. The film layer is only a few atoms thick and chemically inert but it protects the metal from corrosion, oxidation, and mild chemicals. Preventing the surface from pitting and marring prolongs the useful life of the component.

To prevent grit, dirt, oil, grease, iron, or chemicals from undermining successful passivation, Electro-Spec utilizes a comprehensive cleaning procedure comprised of vacuum vapor degreasing with ultrasonic capabilities. Proper cleaning prior to passivation ensures reliable and consistent results that are vital to safety critical and high reliability components used in industries such as medical, aerospace, and military.

Electro-Spec’s passivation process is determined by the part geometry. A full range of passivation methods are provided to meet the requirements of industry and industrial standards. As this is a process that finishes safety critical and high reliability components, a fully-staffed chemistry lab continuously monitors the passivation process at every step. Inspection and testing are performed to ensure that the passivation process is complete and the parts are free of surface defects.

Passivation protects stainless steel components from corrosion and oxidation in harsh environmental and industrial applications.

Electro-Spec is the leader in superior passivation of components that must meet precise safety and performance requirements.

Passivating Capabilities

Type of Finishing Service
Passivating
QQ-P-35 & AMS-QQ-P35
Type II
Type VI
Type VII
Type VIII
ASTM A 967
Nitric 1
Nitric 2
Nitric 3
Nitric 4
Nitric 5
Protects Against
Oxidation
Corrosion
Substrate
Stainless Steel
Width
Up to 12 in
Inspection
Microscope (Visual – up to 500x)
Gage Threads
Testing Ability
X-Ray Fluorescence (Thickness / Composition)
Cross Section
Hardness
Solderability
Nitric Vapor
Sweat
Bake
Adhesion
Purity
Steam Age
Ammonium Sulfide
Copper Sulfate
Potassium Hydroxide
Heat Quench
ICP (Inductively Coupled Plasma Spectrometry)
AA (Atomic Absorption Spectroscopy)
Quality
Statistical Process Control
Traceability
Web Based Tracking
PPAP
PFMEA
Control Plans
Process Validation Protocol
Equipment Validation Protocol
Lean Six Sigma
Documentation
Certificate of Conformance
Packing List
Production Volume
1 to 1,000,000 pieces
Prototype to Large Volume Production
Typical Lead Times Available
3 to 5 days
KANBAN / Inventory Management System

Additional Information

Industry Focus
Medical
Automotive
Aerospace
Military
RF Microwave
Battery
Intended Applications
Safety Critical Parts
High Reliability Parts
Certifications
ISO 9001:2008
AS9100:2009 Revision B
ISO 14001:2004
Lockheed
Raytheon
Industry Standards
NADCAP
ASTM
Mil-Spec
RoHS
EEIC
File Formats
PDF
TIFF

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