With a large percentage of DCHN’s business in medical and other high quality end markets—and as the innovation leader in our industry—it should be no surprise that DCHN has some of the tightest operating processes in the industry. Each or our processes that serves medical and other high tolerance end applications has been verified and validated with documentation available for customer inspection upon request. The IQ, OQ, PQs have all been reviewed and approved by very well known leaders in the DCHN’s Quality Management System at DCHN is certified to ISO 9001:2008.

Applications Lab and Process Validation

Unlike other aluminum anodizing companies, DCHN has its own application lab capable of carrying out a range of application testing, including abrasion, chipping, autoclave, ultrasonic washing, temperature cycling, and other frequently required testing. With this capability, DCHN is able to conduct Design of Experiment Studies to develop the optimal anodic coating solution to meet your customers’ needs and to give you confidence in how your product will perform in actual use. DCHN has extensive experience in providing complete documentation for your regulatory filing submissions. Ask us about your application needs and how we can help you achieve a very high level of confidence in the coating performance.

Approved Source

DCHN is an approved source for many well-known companies throughout the United States in all of the market segments we serve, including MEDICAL, INDUSTRIAL, MILITARY/AEROSPACE, and HI TECH Electronics. Ask DCHN for more information on company approvals as we are likely to have already been audited and approved by the companies you are working with.

DCHN is ISO-9001:2008 & ISO-13485:2003 2012 Certified

D-CHN is committed to the highest quality customer and product service.

We hold certificates of registration for ISO 13485:2003 ISO 13485:2012 and ISO 9001:2008- International Certification for DCHN’s ongoing commitment to continual improvement, customer satisfaction & sustainability in medical applications, military applications, and commercial applications.

ISO 13485 Certified - Click for PDF

ISO 13485 Certified – Click for PDF

ISO 9001 Certified - Click for PDF

ISO 9001 Certified – Click for PDF

 

ITAR CERTIFICATION

DCHN is now provides ITAR certification. Our customers can now be assured that we are in ITAR compliance with providing services for military and defense applications. Our ITAR certification document can be located on our certification page.

Registration-Complete-Letter

Click to Download PDF

 

 

MIL-STD-171

MIL-STD-171 is the military standard that established the minimum requirements for finishing, and otherwise treating, metal and wood surfaces, and to serve as a general guide to the selection of suitable finishing materials, procedures, and systems.

Cross Ref. Chart

As the MIL-STD-171 standard pertains to aluminum parts and finishes provided by DCHN

  • MIL-STD-171, 7.2.1 calls out Anodic film on aluminum, sulfuric acid, MIL-A-8625*, Type II Class 1, nondyed
  • MIL-STD-171, 7.2.2 calls out Anodic film on aluminum, sulfuric acid, MIL-A-8625,* Type II Class 2, dyed, color to be specified
  • MIL-STD-171, 7.3.1 calls out Chemical film, chromate, MIL-C-5541 Class 1A, for maximum protection against corrosion, painted or unpainted
  • MIL-STD-171, 7.3.3 calls out Chemical film, chromate, MIL-C-5541 Class 3, for protection against corrosion where low electrical resistance is required
  • MIL-STD-171, 75.1 calls out Hard anodic coating on aluminum, MIL-A-8625*, Type III, Class 1 – thickness 0.002” ± 0.0002” unless otherwise specified, nondyed
  • MIL-STD-171, 7.5.2 calls out Hard anodic coating on aluminum, MIL-A-8625*, Type III, Class 2 – thickness 0.002” ± 0.0002” unless otherwise specified, dyed, color to be specified.

Sanford Hard  Coat®
(Hard Anodize Natural and Colors)

  • MIL-A-8625, Type III, Class1 AMS 2468
  • MIL-A-8625, Type III, Class2 AMS 2469
  • AMS-A-8625, Type III, Class1 BAC 5821
  • AMS-A-8625, Type III, Class2 PS 13208
  • MIL-STD 171, 7.5.1 PS 13201
  • MIL-STD 171, 7.5.2 PS 13201.1
  • HP 4-79

Sanford HARDLUBE™® (Hardcoat w/Teflon)

  • MIL-A-63576, Type I AMS 2482
  • Sulfuric Anodize ( Clear and Colors)
  • MIL-A-8625 Type II, Class 1 AMS 2471
  • MIL-A-8625 Type II, Class 2 AMS 2472
  • AMS-A-8625, Type II, Class1 DPS-11.05
  • AMS-A-8625, Type II, Class2 DPS-11.06
  • MIL-STD-171, 7.2.1
  • MIL-STD-171, 7.2.2

Clear and Color Anodizing to Aluminum Association (AA) & American Architectural Manufacturers Association (AAMA) finish designations

Chemical Conversion Coating (Alodine, Iridite, Chem Film)

  • MIL-C-5541E, Class 1A, Class 3
  • MIL-STD-171
  • AMS 2473
  • AMS 2474

MIL-A-8625 Aluminum Anodic Coatings

MIL-A-8625 is the military specification for Anodic Coatings for Aluminum and Aluminum Alloys. This mil-spec covers the requirements for electrochemically-formed anodic coatings on aluminum and aluminum alloys for non-architectural applications. It provides details, methods, and procedures for these various coatings. MIL-A-8625 is approved for use by all Departments and Agencies of the Department of Defense.

Cross Ref. Chart

DCHN’s MIL-A-8625 Anodized Aluminum Finishing

If you need to give an aluminum surface the hardness of case-hardened steel while maintaining the light-weight of aluminum, make DCHN your number one choice. Our custom finishes will make your surface sapphire-hard and corrosion- and abrasion-resistant, help it conduct or resist heat, give it lubricity and dielectric properties, and can even color it.

We make extensive use of the Sanford Process®, a proprietary, hard anodizing method so versatile that it enables us to hard coat virtually any alloy—including 2000 series and cast—to meet your particular requirements.

DCHN offers the following anodic coating types and classes:

The anodic coating types and classes that DCHN offers are as follows:

  • MIL-A-8625, Type II, Class 1 – Sulfuric acid anodizing. Conventional coatings produced from a sulfuric acid bath. Non-dyed.
  • MIL-A-8625, Type II, Class 2 – Sulfuric acid anodizing. Conventional coatings produced from a sulfuric acid bath. Dyed.
  • MIL-A-8625, Type III, Class 1 – Hard anodic coatings. Non-dyed.
  • MIL-A-8625, Type III, Class 2 – Hard anodic coatings. Dyed.
Sanford Hardcoat™ (Hard Anodize – Natural & Colors)

  • MIL-A-8625, Type III, Class 1 AMS 2468
  • MIL-A-8625, Type III, Class 2 AMS 2469
  • AMS-A-8625, Type III, Class 1 BAC 5821
  • AMS-A-8625, Type III, Class 2 PS 13208
  • MIL-STD 171, 7.5.1 PS 13201
  • MIL-STD 171, 7.5.2 PS 13201.1
  • HP 4-79
Sanford HARDLUBE™™ (Hardcoat with Teflon)

  • MIL-A-63576, Type I
  • AMS 2482
Sulfuric Anodize (Clear & Colors)

  • MIL-A-8625 Type II, Class 1 AMS 2471
  • MIL-A-8625 Type II, Class 2 AMS 2472
  • AMS-A-8625, Type III, Class 1 DPS-11.05
  • AMS-A-8625, Type III, Class 2 DPS-11.06
  • MIL-STD-171, 7.2.1
  • MIL-STD-171, 7.2.2

DCHN is a subsidiary of Katahdin Industries Inc. More information can be found at www.katahddin-inc.com