Roto158-190F Low Melt Fusible Bismuth Based Alloy Ingot

Sold by the Ingot.

SDS here.

An ingot of Roto158-190F weighs approximately 1 pound and consists of 42.5% Bismuth, 37.7% Lead, 11.3% Tin, 8.5% Cadmium. Roto158-190F can be used for proof casting cavities (threads, dies, molds, blind holes), duplicate patterns in foundry match plate making, supporting work pieces while machining, spray coating wood patterns, and masks for electroplating and spray painting.

Ingot dimensions 4" x 1 5/8" x 1/2"

Contraction expansion factor versus time, measured in inch per inch compared to cold mold dimensions. Test Bar x 10 (Below measurements are x/10,000ths of an inch. ex: 0.0025" is 25/10,000ths of an inch)

• 2 minutes - .0004"
  
• 6 minutes - .0007"
  
• 30 minutes - .0009"
  
• 1 hour + .0000"
  
• 2 hours + .0016"
  
• 5 hours + .0018"
  
• 7 hours + .0019"
  
• 10 hours + .0019"
  
• 24 hours + .0022"
  
• 96 hours + .0025"
  
• 200 hours + .0025"
  
• 500 hours + .0025"

Same as 

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