TIN PLATING SERVICES
Ideal metal finish for electrical condutivity and solderability
We provide expertise in providing barrel and rack bright and matte tin plating services to most Telecommunications specifications including: ASTM-B545 (Matte & Bright) MIL-T-10727C (Type I)
TIN PLATING SERVICES TO THE FOLLOWING SPECIFICATIONS
MAF specilizes in tin plating for telecommunications industries
Type I: As specified on drawing.
Thickness guide (not part of spec.) as follows:
Electrodeposited – Use ASTM-B-545 as guideline.
If not specified, bright will be generally provided.
Please note: This specification is provided for reference purposes only as it has been super-ceded by ASTM-B-545 (See below).
|.0001-.00025″||Flash for soldering|
|.0002-.0004″||To prevent galling and seizing|
|.0003 min.||Where corrosion resistance is important|
|.0002-.0006″||To prevent formation of case hardening during nitriding.|
Type II: Hot dipped (not currently available at MAF)
Class A: .0001″ min
Class B: .0002″ min
Class C: .00032″ min .0004″ min. for steel
Class D: .0006″ min .0008″ min. for steel.
Class E: .0012″ min
ASTM requires purchaser to supply information, such as base metal, under plating, test requirements and test methods etc. In general, copper alloys containing more than 5% Zn shall have a copper undercoating of at least 0.0001″ or nickel undercoating of at least 0.000050″.
This specification applies to electroplated coatings of not less than 99% tin (except where deliberately alloyed with lead per customer drawings and/or P.O requirements).
Tin 88-98%, remainder lead.
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ITEMS OF NOTE
The final product in plated condition will possess a gray-white color and a very high luster in fused condition.
Tin plating produces a soft, but very ductile surface and displays good corrosion resistance. (Coated items should meet 24 hour 5% salt spray requirement).
We DO NOT recommend tin for low temperature applications as it changes structure and loses adhesion when exposed to temperatures below -40º C.
We plate directly on steel substance (no undercoating for steel unless otherwise specified).