Tin Plating Services
Mid-Atlantic Finishing offers tin plating services for a variety of applications in numerous industries including power transmission/distribution, electronics, telecommunications, medical, marine and aerospace industries.
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
Tin plating is ideal for its properties of electrical conductivity and solderability. 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).
|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Please note: This specification is provided for reference purposes only as it has been superceded by ASTM-B-545 (See below).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)|
|Types are matte, bright, or flow-brightened|
|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.