Hi i was told to use soft solder and it worked for me ok when back in the crown with a nice big fire roaring up the lum kenny ----- Original Message ----- From: "Jon Mottershaw" <j.mottershaw@xxxxxxxxxxxxxxx> To: <modeleng@xxxxxxxxxxxxx> Sent: Wednesday, April 05, 2006 4:02 AM Subject: [modeleng] Fusible Plugs >I have a question about fusibleplugs commonly found in the crown of boilers >say 5" gauge. What is the fusible material? Is it soft solder, comsol or >something similar or is it another alloy. I was just wondering what the >melting point would typically be relative to the temperature of the water >over the crown. I ve got one fitted in my boiler and know nothing about it. >Jon > MODEL ENGINEERING DISCUSSION LIST. > > To UNSUBSCRIBE from this list, send a blank email to, > modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject > line. > MODEL ENGINEERING DISCUSSION LIST. To UNSUBSCRIBE from this list, send a blank email to, modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.