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 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will be generally provided Please note: This specification is provided for reference purposes only as it has been superceded by ASTM-B-545 (See below).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. |