Hot tank bluing chemicals

[beeperboy]

Here we go...

The standard Canadian heat souce, a Coleman campstove. Hot water with TSP in the left bucket, and the bluing solution in the right. The SS buckets came from the Army/Navy store.

Here is a milling clamp I made a while back. It is cold rolled steel.

This is O-1 tool steel. It turned out slightly red.

These threaded rod were cold rolled steel. They turned out super dark blue.

 

[tiriaq]

Nice results! Good uniform colour. It is recommended that a black iron tank be used for caustic bluing. A reddish cast can result from temperature, some alloys can react differently.

 

[beeperboy]

Nice results! Good uniform colour. It is recommended that a black iron tank be used for caustic bluing. A reddish cast can result from temperature, some alloys can react differently.

Thanks. I screwed up the image links. Maybe one of the moderators can take pity on this newbie soul and fix it?

BB