Posts Tagged ‘ASTM-B488’

New ASTM B488 2011 Edition released on Electrodeposited Coatings of Gold for Engineering Uses

Thursday, January 19th, 2012

The new ASTM B488-11 Edition has just been released.  The 8 page standard is titled “Standard Specification for Electrodeposited Coatings of Gold for Engineering Uses.”   This specification covers requirements for electrodeposited gold coatings that contain not less than 99.00 mass % gold and that are used for engineering applications.  It is one of Document Center Inc.’s all-time best selling ASTM standards.

This specification does not cover gold coatings produced from autocatalytic, immersion, and vapor deposition.

Gold coatings conforming to ASTM B488 are employed for their corrosion and tarnish resistance (including resistance to fretting corrosion and catalytic polymerization), bondability, low and stable contact resistance, solderability, and infrared reflectivity. Several types of coatings, differing in gold purity and hardness, are covered by this specification.

Coatings are classified into types, which characterize minimum purity, and codes, which designate Knoop hardness. They can be sampled, tested and conform to specified requirements as to purity, hardness, appearance, thickness, mass per unit area, ductility, adhesion (assessed by either bend, heat, or cutting test), and integrity (including gross defects, mechanical damage, and porosity).

There are 6 Appendixes at the end of the specification, which include non-manditory information only.

Purchase ASTM A488-11 from Document Center Inc., which is celebrating it’s 30th year in business in 2012.  You can use our website, www.document-center.com, or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  We have both current and obsolete editions of the ASTM standards available in both paper an pdf format for immediate delivery.

The Plating Spec Poster – A handy tool for plating and coating specialists

Tuesday, August 10th, 2010

Techplate’s Plating and Anodizing Specifications Chart is a handy wall chart developed to summarize a variety of frequently referenced plating specs.

The 2006 Edition covers a wide variety of metals and coatings.  Various classes are covered, along with thicknesses, and applications.  It’s 18 inches wide by 24 inches high, so it’s easy to post and reference.

Here is a list of some of the coatings covered and specs that apply:

Anodic Coatings MIL-A-8625
Black Chromium Plating MIL-DTL-14538
Black Oxide Coating MIL-DTL-13924 and AMS-2485
Cadmium Plating AMS-2700 and ASTM-B766
Chemical Conversion Coatings MIL-DTL-5541
Chromium Plating AMS-2460
Chemical Finish Black MIL-F-495
Copper AMS-2418
Electroless Nickel Coatings AMS-2404 and AMS-C-26074
Electropolish ASTM-B912
Gold Plating ASTM-B488 and AMS-2422
Lubricant, Solid Film MIL-PRF-46010
Magnesium Anodic Treatment AMS-M-45202 and ASTM-D1732
Magnesium Chromic Treatment AMS-M-3171
Nickel Coatings AMS-QQ-N-290 and AMS-2403
Passivation Treatments AMS-2700
Light Phosphate Coating TT-C-490
Heavy Phosphate Coating MIL-DTL-16232
Salt Bath Nitride AMS-2753
Silver Plating ASTM-B700
Sulfamate Nickel MIL-P-27418
Tin Coatings ASTM-B545
Tin Lead Plating AMS-P-81728
Vacuum Cadmium Plating AMS-C-8837
Zinc ASTM-B633
Zinc Alloy Plating ASTM-B840 and ASTM-B841