Armoloy Specifications
Armoloy Specifications
What is ASTM B117?
ASTM B117 is the industry standard for evaluating corrosion resistance using a controlled salt spray (fog) test. It is widely used in quality control and process validation, and often referenced in specifications and programs such as ASTM B650 and Nadcap Certification.
Developed by ASTM International, it simulates harsh environments by exposing samples to a 4-6% sodium chloride (NaCl) mist in a chamber maintained at 35°C (95°F). Testing durations range from 24 hours to over 1,000 hours, depending on material requirements.
After exposure, samples are evaluated for rust, pitting, and surface degradation, providing valuable insights and comparisons of material performance. While the test doesn’t directly predict real-world performance, it is widely used in the aerospace, automotive, and defense industries to benchmark corrosion protection.
This test applies to metals like steel, aluminum, and stainless steel, as well as coatings such as chrome, zinc, and nickel. Its versatility and ease of use make ASTM B117 a critical tool for improving material longevity and performance.
The Role of ASTM B117 in Corrosion Resistance Testing
ASTM B117 is the leading industry benchmark for evaluating corrosion resistance in the U.S., providing a controlled method to simulate salt-laden environments. Its key contributions include:
- Standardized Testing: Provides consistent, repeatable conditions for comparing material and coating performance.
- Industry Benchmark: Used globally to streamline compliance, product validation, and cross-industry collaboration.
- Quality Assurance: Helps manufacturers confirm that materials and coatings meet durability standards before real-world use.
- Advancing Materials Science: Supports the development of advanced protective coatings and corrosion-resistant materials.
As a cornerstone of corrosion testing, ASTM B117 ensures manufacturers can engineer products that withstand harsh environments and maintain long-term performance.
ASTM B117 Testing Methodology & Results
ASTM B117 follows a standardized procedure to assess corrosion resistance in a controlled salt spray environment. Key steps include:
- Sample Preparation: Materials are cleaned and prepped to match real-world applications.
- Testing Chamber Setup: Samples are placed in a chamber that sprays a fine mist of 4-6% sodium chloride (NaCl) solution at 35°C (95°F), with a controlled pH between 6.5 and 7.2.
- Exposure Duration: Test lengths vary based on material requirements, often lasting 24, 48, or over 1,000 hours.
- Corrosion Inspection: Samples are examined for rust, pitting, and surface damage using visual and analytical methods.
- Performance Evaluation: Results are measured by time to first corrosion or surface deterioration percentage, providing a comparative corrosion resistance metric.
While ASTM B117 cannot predict real-world performance, it remains a vital tool for comparing materials and coatings.
Industries that Use AMS 2403
ASTM B117 is a cornerstone for industries that demand corrosion resistance:
- Aerospace: Protects fasteners, landing gear, and structures from harsh conditions.
- Automotive: Ensures trim, wheels, and engine parts withstand road salt and moisture.
- Medical Devices: Prevents corrosion in surgical tools and implants.
- Oil and Gas: Shields pipelines, valves, and drilling equipment from corrosive environments.
- Packaging: Preserves metal coatings on moisture-exposed materials.
- Semiconductors: Extends the lifespan of components in industrial and outdoor settings.
By standardizing corrosion testing, ASTM B117 helps industries build durable, high-performance materials.
Benefits of Working with an ASTM B117 Provider
Proven Quality
Comprehensive testing ensures materials meet corrosion resistance standards
Industry Compliance
Providers ensure components meet or exceed regulatory requirements for automotive, aerospace, and industrial applications
Technical Expertise
Experienced teams offer guidance on material selection and optimized protective coatings
Risk Mitigation
Prevents premature failures, minimizing downtime and disruptions
Efficient Resource Allocation
Outsourcing corrosion testing to an ASTM B117-certified laboratory with ASTM B117 capabilities frees up internal resources for core operations
Enhanced Product Development
Providers use test results to refine coatings and materials, improving product performance
Comprehensive Reporting
Documentation supports traceability and informed decision-making
Global Compatibility
Testing aligns with international standards like ISO 9227, supporting seamless global integration
Specifications at Armoloy
Armoloy offers plating solutions that meet ASTM B117 to support both regulatory compliance and individual project needs. Explore common specifications and accreditations we work with and contact us to find the right solution for your application.
Disclaimer: The interpretations and overviews of ASTM B117 provided by The Armoloy Corporation are solely the views of Armoloy and may not represent the views of other entities. These interpretations are intended for informational purposes only and should not be considered as definitive or legally binding. The Armoloy Corporation is not responsible for the accuracy of these interpretations and expressly disclaims any liability for loss or damage arising from their use. This disclaimer is subject to change and does not create any express or implied warranty regarding the information provided.