ASTM B488 PDF

Thank you for visiting the Advanced Plating Technologies Specification Database . Below is a technical summary of specification ASTM B from ASTM for. Our gold plating services comply with different categories of specifications, such as MIL-G, ASTM B, and AMS Gold plating compliant to. Accurate Precision Plating has 50 years experience performing gold plating services under the ASTM B certification & standard. Call today!.

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Deposit hardness should be determined on samples at plating conditions representative of actual production. The purchaser and supplier may agree on the plan or plans to be used. Coatings shall 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 testand integrity including gross defects, mechanical damage, and porosity.

All non-gold metals, excluding potassium and sodium, are considered impurities and shall not be present in amounts greater than 0.

All other metals excluding potassium and sodium are considered impurities and shall not be present in amounts greater than 0. Historical Version s – view previous versions of standard. This standard has been approved for use by agencies of the Department of Defense.

The inspection lot is then classi? The test must yield a numerical value and certain statistical requirements must be met. All our processes are certified to ISO A suggested water extract conductivity test method uses a procedure in accordance with Test Methods B88, Method A.

Place the specimen in the bottle in accordance with X3.

ASTM B-488

Government or an agent of the U. Several types of coatings, differing in gold purity and hardness, are covered by this speci? A suggested four-point method is detailed in Test Method F Type, Code, and thickness or mass per aetm area see Section 4.

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It is strongly recommended that gold coating thicknesses not exceed 0. When plated parts are used in mating applications, the maximum thickness shall not exceed the tolerance speci?

ASTM B – 18 Standard Specification for Electrodeposited Coatings of Gold for Engineering Uses

Therefore, the coating thickness at any single point on the signi? For Type Qstm Code B and C coatings, metallic hardening agents such as nickel, cobalt or iron combined shall be equal to or less than 0. Thickness of the underplating should be consistent with end-use requirements.

If copper or nickel underplatings are used, they should have a nominal thickness of at least 1. NOTE 7—In certain instances in which high-frequency analog signals are employed, such as in wave guides, the magnetic properties of nickel may attenuate axtm signal.

They must be smooth and as free of scratches, gouges, nicks, and similar imperfections as possible.

Gold will not form surface oxides Gold conducts low voltage currents for long periods of time without corrosion or failure Gold provides good wear resistance, especially when combined with cobalt or nickel Types of Industrial Gold Plating Services Hard gold plating — gold alloyed with trace amounts of cobalt or nickel for durability in connectors Soft gold plating — for applications that require purity Wire bondable gold — ultra-pure karat gold plating We offer nickel-brightened hard acid, karat gold plating, with hardness rating aastm Knoop.

NOTE 12—Usually, with a collection of coated articles, the inspection lot see 8.

Any such defects on signi? The last approved version of this historical standard is referenced on www. Individual xstm impurities shall not be present in a quantity greater than 0.

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However, the use of these undercoatings requires the approval of the purchaser. Initial scanning should be carried out for all elements in order to detect any unknown or unexpected metallic impurities.

This abstract is a brief summary of the referenced standard.

ASTM B488 Gold Plating Standard

Government and Military, including as subcontracts, shall be packaged in accordance with Practice Xstm You can be assured your gold plating project will be completed right the first time and your part delivered to you production-ready. The presence of salts is evidenced by a characteristic? This specification establishes the requirements for electrodeposited gold coatings for engineering applications, employed specifically for their corrosion and tarnish resistance including resistance to fretting asfm and catalytic polymerizationbondability, low and stable contact resistance, solderability, and infrared reflectivity.

Can be the source of corrosion products or tarnish? When Guide B is speci? To convert mass of gold per unit area that is present over the measured area to a geometrical thickness, it is necessary to use standards having ashm density identical to that of the coatings to be measured, or to multiply the reading obtained by factor, f.

Several types of coatings, differing in gold purity and hardness, are covered by this specification. The cross-sectioning and magnetic methods measure the geometrical thickness of the gold present. Deposit purity should be determined on samples at plating conditions representative of actual production.

Properly performed, this process will ensure coated products aztm satisfactory quality and will reduce the amount of acceptance inspection.

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