ASTM A967 & A380 Compliant

On-Site Stainless Steel Passivation Services

Mobile passivation for pharmaceutical, biotech, data centers, EV battery, and aerospace facilities. Citric and nitric acid passivation with complete ASTM documentation and audit-ready turnover packages.

🚨 Emergency Response
🧪 Citric Acid ⚗️ Nitric Acid 🔧 Mobile CIP Skids 📋 Full Documentation

Why Choose CXP Solutions

200+
Facilities Served
Zero
Safety Incidents
10+
Years Experience
24/7
Emergency Response
ASTM
A967 & A380 Compliant
100%
Owner Involvement
Mobile
On-Site Service
Full
Documentation

Our Passivation Services

Click on any card to expand and learn more about our comprehensive passivation and cleaning services. Each service is ASTM compliant with full documentation.

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Mobile CIP Equipment

Trailer-mounted systems for on-site service

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Temperature Controlled

140-180°F for optimal passivation

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Complete Documentation

Audit-ready turnover packages

24/7 Emergency Response

Rapid deployment when you need it

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Citric Acid Passivation

Recommended for Pharma

Pharmaceutical-preferred passivation using 4-10% citric acid. Lower toxicity, excellent iron chelation, and easier disposal. ASTM A967 Citric 1-7 compliant.

4-10%Concentration
140-160°FTemperature
30-60 minContact Time
pH 2-3.5Operating pH
Learn More About Citric →
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Nitric Acid Passivation

Heavy Industrial

Traditional 20-50% nitric acid passivation for heavy industrial applications requiring aggressive treatment of scale and heat tint. ASTM A967 Nitric 1-4 compliant.

20-50%Concentration
70-140°FTemperature
20-60 minContact Time
pH < 1.0Operating pH
Compare Citric vs Nitric →

Hand Passivation

Targeted Treatment

Gel or paste application for targeted treatment of weld areas, spot repairs, localized heat tint removal, and components that cannot be circulated.

Gel/PasteApplication
AmbientTemperature
30-60 minContact Time
TargetedCoverage
View Hand Passivation →
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Derouging Services

Rouge Removal

Complete derouging using chelating agents to dissolve iron oxide contamination (Class I, II, III rouge), followed by ASTM-compliant re-passivation.

ChelationMethod
All ClassesRouge Types
+ RepassivationIncluded
Full DocsVerification
Derouging Services →
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High-Velocity Flushing

Debris Removal

Water circulation at 5-10 ft/sec creates turbulent flow to physically remove weld slag, debris, and loose particles before passivation.

5-10 ft/secFlow Velocity
TurbulentFlow Regime
5-100μmFiltration
LoggedFlow Data
HV Flushing Services →
O₂

Oxygen Service Cleaning

CGA G-4.1 Compliant

Specialized cleaning and passivation for oxygen, medical gas, and enriched-atmosphere systems per CGA G-4.1 requirements.

CGA G-4.1Standard
NVR TestVerification
UV/BlacklightInspection
BaggingTurnover
Oxygen Cleaning Services →
Service Coverage

Our Service Areas

CXP Solutions provides mobile passivation services throughout the Southeast United States. Click a city on the map for more information about local services.

Additional coverage: South Carolina, Virginia, Georgia, Tennessee, Florida. Contact us for service outside these areas.

SANFORD HQ Raleigh Durham Greensboro Charlotte Holly Springs Clayton Fayetteville VA TN NC SC GA FL

📍 City Name

Description of services in this area.

View Local Services →
Proven Results

Before & After Results

Real results from CXP passivation and derouging projects.

Tank before derouging Before

Heavy Rouge Contamination

Pharmaceutical tank with Class III rouge before treatment.

Tank after derouging After

Derouged & Re-Passivated

Mirror finish restored after CXP treatment.

Fitting before Before

Iron Oxide on Fitting

Heavy contamination before passivation.

Fitting after After

Pristine Passivated Surface

Clean, passivated finish after citric treatment.

FAQ

Frequently Asked Questions

How long does passivation take?
Passivation duration depends on system size and condition. Small equipment typically requires 4-8 hours. Large pharmaceutical loops may require 2-5 days. CXP provides detailed timelines during project planning.
What standards apply to passivation?
The primary standards are ASTM A967 and ASTM A380. For pharmaceutical applications, ASME BPE provides additional requirements. For oxygen service, CGA G-4.1 governs procedures.
Does citric acid passivation meet ASTM requirements?
Yes. ASTM A967 includes specific provisions for citric acid passivation (Citric 1-7 methods). Citric is now preferred in pharmaceutical, biotech, and food-grade applications. See our citric vs nitric comparison.
What is the difference between passivation and pickling?
Pickling uses stronger acids to remove heavy scale and heat tint by removing base metal. Passivation uses milder acids to remove free iron and enhance the chromium oxide layer without removing base metal. Pickling is aggressive; passivation is protective.
Can passivation be performed on-site?
Yes. CXP specializes in mobile on-site passivation using trailer-mounted CIP skids with integrated heating, pumps, chemical dosing, and monitoring. On-site service eliminates disassembly costs. Contact us for a quote.
How often should systems be re-passivated?
Re-passivation frequency depends on conditions. High-temperature WFI systems may need derouging and re-passivation every 3-5 years. Systems showing visible rouge or iron contamination should be evaluated immediately.

Ready to Schedule Passivation Services?

CXP Solutions provides rapid-response mobile passivation with complete ASTM documentation. Contact us for a quote or immediate emergency response.

🚨 Emergency Response

Serving pharmaceutical, biotech, data center, EV battery, aerospace, and industrial facilities. ASTM A967 and A380 compliant.

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