No cost, no registration, no passwords -- just aloha, fun & authoritative answers
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

I have components that need to be tin/lead plated to MIL-F-14072 F.





What type of solder is used for this class, M230? 63/37 sn/pb? The drawing does not specify.

Rick Flores

2006



2006

I'm not sure of the question. MIL-F-14072D (latest revision per ASSIST) finish M230 is defined in Table III (on page 34): A base plating of 0.0025" copper per MIL-C-14550, Class 4, plus 0.0076" electroplated lead-tin (50-70% tin) per MIL-P-81728. Footnote 1 of Table III requires reflow of the electroplated lead-tin.

Finish M258 (page 31) is 0.0076" hot-dipped lead-tin solder (40-60%) per QQ-S-571. Solders and impurity limits are given for Class 1 & Class 2 applications, as well as information on fluxes.

Ken Vlach [deceased]
- Goleta, California

contributor of the year Finishing.com honored Ken for his countless carefully researched responses. He passed away May 14, 2015.
Rest in peace, Ken. Thank you for your hard work which the finishing world, and we at finishing.com, continue to benefit from.



your name here



(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"