Jump to content

The Fountain Pen Network uses (functional) cookies. Read the Privacy Policy for more info.  To remove this message, please click here to accept the use of cookies


Any imput on the Waterman Exclusive?

  • Please log in to reply
21 replies to this topic

#21 Old Salt

Old Salt

    Old Salt

  • Premium - Emerald

  • PipPipPipPipPipPipPipPip
  • 1,433 posts
  • Location:Delaware
  • Flag:

Posted 17 November 2017 - 21:06

Something I didn’t know. From Wikipedia:
Brass is susceptible to stress corrosion cracking,[26] especially from ammonia or substances containing or releasing ammonia. The problem is sometimes known as season cracking after it was first discovered in brass cartridges used for rifle ammunition during the 1920s in the British Indian Army. The problem was caused by high residual stresses from cold forming of the cases during manufacture, together with chemical attack from traces of ammonia in the atmosphere. The cartridges were stored in stables and the ammonia concentration rose during the hot summer months, thus initiating brittle cracks. The problem was resolved by annealing the cases, and storing the cartridges elsewhere.

Sponsored Content

#22 Tweel



  • Member - Gold

  • PipPipPipPipPipPipPipPipPip
  • 1,854 posts
  • Location:Indiana U.S.A., north of Orson

Posted 19 November 2017 - 23:46

Yes, and there are a couple of us around here who have some concern that habitual use of ammonia for flushing could lead to eventual stress corrosion cracking of gold (alloy) nibs.

fpn_1375035941__postcard_swap.png * * * "Don't neglect to write me several times from different places when you may."
-- John Purdue (1863)


Sponsored Content