Answer / krishnamurthy

In water tube boilers - there is no fusible plug and there
is a safety valve. In fire tube boilers it may be there and
material will be lead (less melting point than steel)

Boiler pressure parts shall confirm upto 420 deg c in
carbon steel confirming to ASME A106 Gr. B, for
applications more than 420 to 480 Deg C it shall be ASME
A335 Gr.P1 or P11 and more than than it will be P22, P91
etc. structures shall confirm to IS 2062 Grade B

Answer / karan pratap

Melting tem.of the boiler fusible plug is 550 degri centigred manufatur fusible plug is.steel cache.zink high tem.

Answer / karthick

the metal which has lowest melting pointing is used in
fusible plug.lead is mostly used and i think the melting
temp is around 700 deg.

the metal used for manufacturing boiler is steel.since it
has good corrosion resistance

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