Cerrolow 136

Cerrolow 136, is a fusible alloy that becomes liquid at approximately 58 °C (136 °F). It is a eutectic alloy of bismuth, lead, indium, and tin, with the following percentages by weight: 49% Bi, 18% Pb, 21% In, 12% Sn.

It is also known as ChipQuik desoldering alloy.[1] and Lens Alloy 136, used for mounting lenses and other optical components for grinding.[2] Used for mounting small delicate oddly-shaped components for machining. It slightly expands on cooling, later shows slight shrinkage in couple hours afterwards. Used as a solder in low-temperature physics.[citation needed]

The Young's Modulus is approximately 2.5×106 psi (17.24 GPa) [3]

Similar metals

Alloy Melting point Eutectic? Bismuth
%		 Lead
%		 Tin
%		 Indium
%		 Cadmium
%		 Thallium
%		 Gallium
%		 Antimony
%
Rose's metal 98 °C (208 °F) no 50 25 25 – – – – –
Cerrosafe 74 °C (165 °F) no 42.5 37.7 11.3 – 8.5 – – –
Wood's metal 70 °C (158 °F) yes 50 26.7 13.3 – 10 – – –
Field's metal 62 °C (144 °F) yes 32.5 – 16.5 51 – – – –
Cerrolow 136 58 °C (136 °F) yes 49 18 12 21 – – – –
Cerrolow 117 47.2 °C (117 °F) yes 44.7 22.6 8.3 19.1 5.3 – – –
Bi-Pb-Sn-Cd-In-Tl 41.5 °C (107 °F) yes 40.3 22.2 10.7 17.7 8.1 1.1 – –
Gallium 30.0 °C (86 °F) Pure metal - - - - - - 100 –
Galinstan −19 °C (−2 °F) no <1.5 – 9.5–10.5 21–22 – – 68–69 <1.5

References

  1. ^ Johnson Manufacturing Co, MSDS for Chip Quik Alloy w/Lead. Retrieved on February 6, 2015.
  2. ^ "Lens Blocking alloy 136 58oC". Lowden Limited. Archived from the original on 17 October 2016.
  3. ^ Baker, Wilfred E.; Westine, Peter S.; Dodge, Frank T. Similarity methods in engineering dynamics : theory and practice of scale modeling. Fundamental Studies in Engineering. Vol. 12 (Rev. ed.). Elsevier. p. 134. ISBN 0-444-59813-8. Retrieved 5 December 2019.