Custom Coating provides manganese phosphate coating services for steel and iron components requiring processing to MIL-DTL-16232 Type M requirements. Our team reviews customer drawings, purchase orders, revision levels, coating requirements, post-treatment needs, and testing expectations to support specification-driven production.
MIL-DTL-16232 is an active U.S. Department of Defense specification covering heavy phosphate coatings applied to ferrous metals by immersion. The specification includes manganese phosphate coatings designated as Type M.
MIL-DTL-16232 Type M Manganese Phosphate
MIL-DTL-16232 covers heavy phosphate coatings for ferrous metals. Type M identifies a manganese phosphate base coating, which may be specified with different supplementary treatments depending on the required class and application.
Custom Coating supports manganese phosphate requirements commonly associated with:
- MIL-DTL-16232, Type M, Class 1
- MIL-DTL-16232, Type M, Class 2
- MIL-DTL-16232, Type M, Class 3
- MIL-DTL-16232, Type M, Class 4
Understanding Type M Classes
Custom Coating reviews the applicable specification revision, coating class, supplementary treatment, customer drawing, purchase order, and testing requirements before production to help determine the appropriate processing approach.
Our Approach to Specification Requirements
Manganese phosphate is a functional surface treatment, and processing requirements can vary depending on the component, specification, drawing, and intended application. Before production, Custom Coating reviews applicable customer requirements to help determine the appropriate processing approach.
Our review process includes:
- Customer drawings and specifications
- Purchase order requirements
- Revision levels
- Required coating weight
- Supplementary treatment requirements
- Oil or preservative post-treatment requirements
- Testing expectations
- Documentation and traceability requirements
Manganese Phosphate Processing Capabilities
Custom Coating provides manganese phosphate processing for steel and iron components requiring functional surface protection and performance support. The crystalline phosphate surface can retain supplementary oil treatments that support lubricity, break-in performance, wear resistance, and protection during handling and storage.
Our processing capabilities include:
- Automated manganese phosphate processing
- Oil bath post-treatment
- Customer-specific coating requirements
- Production support for industrial components
- Lot traceability
- Quality-focused processing
Custom Coating’s ISO 9001:2015 scope specifically includes the application of oil-absorptive manganese phosphate coating onto iron and steel components for industrial customers.
Components and Applications
MIL-DTL-16232 Type M manganese phosphate may be specified for steel and iron components requiring a functional phosphate coating as part of their finishing requirements.
Custom Coating processes components including:
- Gears
- Threaded components
- Fasteners
- Valves
- Connectors
- Engine components
- Steel and iron parts exposed to sliding or rotating contact
- Other components requiring customer-specified manganese phosphate processing
Why Work With Custom Coating?
Related Manganese Phosphate Services
MIL-DTL-16232 Manganese Phosphate FAQs
MIL-DTL-16232 is a specification covering phosphate coatings for ferrous metals. Type M identifies a manganese phosphate coating, which is used as a functional surface treatment for steel and iron components and may be specified with different supplementary treatments depending on the application requirements.
Providing available customer drawings, specifications, purchase order requirements, revision levels, coating requirements, and post-treatment requirements helps Custom Coating review your project and determine the appropriate processing approach before production.
Yes. Custom Coating reviews applicable customer requirements, including drawings and specifications, to help determine the appropriate processing approach for the component and intended application.
Yes. Depending on the specified class and application requirements, manganese phosphate may include a supplementary lubricating oil or preservative treatment. Custom Coating reviews the applicable customer and specification requirements to determine the appropriate post-treatment process.
Have a MIL-DTL-16232 Coating Requirement?
Contact Custom Coating to discuss your MIL-DTL-16232 manganese phosphate requirements, component specifications, and production needs. Our team can review your project and provide a competitive quote.