ASTM B() Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metal Scope This . This ASTM B standard specification covers the requirements for electroless nickel-phosphorous coatings on metal. For more details call us. The procedure in our factory is carried out according to: AMS-C, or ASTM B The thickness of the coating and the treatments is displayed in the tables.
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They are used on beryllium and titanium parts for low stress properties.
Sufficient time must be allowed for large parts to reach oven temperature. Electroless Nickel on aluminum Please note that price shown is for minimum thickness. The coating is carried out in a watery solution, containing metallic ions, complexes and stabilizers.
ASTM B Specification Electroless Nickel – Phosphorous Coatings General Metal Finishing
ASTM B – standard The test is performed by rotating a plated panel under rotating rubber wheels and weighing the panel after each cycles for weight loss. Deposit properties of Electroless Nickel far exceed those of electro-plated bright nickel. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
This is always a adtm practice asttm dealing with high value copper alloy articles.
Electroless Nickel Plating
The results should be averaged without the? The precision and bias requirements will vary for each type of test. Coatings that show imperfections may be rejected. Typical environments include light-load lubricated wear, indoor corrosion protection to prevent rusting, and for soldering and mild abrasive wear.
Make three closely spaced indentations and examine xstm magni? Guide B b733-0 a large number of plans and also gives guidance on the selection of a plan. The coefficient of friction and stress of deposit are also reduced in comparison to electro-plated bright nickel.
Electroless Nickel Coating
Any red spots remaining indicate pores. The hardness of CS wheels can change with time and can effect the reproducibility of results see Test Method D After coating and if speci?
It will vary depending on loads, type of indenter, and operator. The chemical makeup of the plating solution and the use of the solution can affect the porosity and corrosion resistance of the deposit. Deposits higher b733-40 7.
Add to Alert PDF. Need more than one copy? Coatings with phosphorus contents greater than Properly performed this will ensure coated products of satisfactory quality and will asfm the amount of acceptance inspection. NOTE 18—On thick 75?
NOTE 12—Inductively coupled plasma techniques can determine the alloy to within 0. Then remove the part, air dry, and examine for rust spots, which indicate pores. Careful attention to the selection b33-04 TYPE will insure optimum performance of the deposit in the intended application.
They are also used for the salvage of worn or mismachined parts.
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Please note that price shown is for minimum thickness. These coatings are used in electronic applications providing solderability, bondability, b73-04 electrical conductivity, and resistance to strong alkali solutions. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Rounding of the test results due to the precision of the limits provides for an effective limit of 4.
After all the electroless nickel is removed, the part should be rinsed in clean rinse water. Go to main content.
Electroless Nickel Coating
Individual alloys should be tested for maximum hardness attainable, especially for conditions of lower temperatures and longer times. Your comments are invited either for revision of this standard or for additional standards axtm should be addressed to ASTM International Headquarters.
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When required, one of the following tests can be used on the plated part or specimen.