Partial Report on Low Expansion Alloys for Main Steam Lines
Abstract
The properties of some low expansion alloys were studied with the purpose of determining their suitability for main steam lines aboard ship. Alloys of iron-nickel and iron-nickel-cobalt were prepared and their thermal expansion, physical properties and corrosion resistance were studied. In some alloys a material reduction in expansion could be obtained by heat treatment. However, heating to high temperature destroyed the low expansion properties. An alloy containing Fe-54, Ni-28, and Co-18 has an excellent combination of low expansion, low modulus and high elastic limit. This alloy had an average expansion one-fourth that of carbon molybdenum steel between 70 and 800 deg F.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 26, 1940
- Accession Number
- AD1158734
Entities
People
- I. R. Kramer
Organizations
- United States Naval Research Laboratory