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Alloy 47ND Steel grade 47ND is a precision alloy with a given thermal expansion coefficient, which is based on iron and contains up to 48% nickel. In some properties it is similar to platinum, therefore, it is often called platinite and is used as a substitute for an expensive element. Special properties Heat-resistant steel 47ND […]
Alloy 47ND
Steel grade 47ND is a precision alloy with a given thermal expansion coefficient, which is based on iron and contains up to 48% nickel. In some properties it is similar to platinum, therefore, it is often called platinite and is used as a substitute for an expensive element.
Special properties
Heat-resistant steel 47ND has a given TCLE, which has minor changes, at temperatures from -70 to +440 degrees. This allows you to save the volume and linear dimensions, as well as all the properties of products made of 47ND alloy.
smelting and post-treatment technologies using a special technique.
Significant Curie point temperature is provided by a considerable proportion of nickel.
Applications
Heat-resistant 47ND precision alloy provides high-quality bonding to glass and ceramics. The similarity with platinum makes it possible to use a unique alloy in the manufacture of current bushings for incandescent lamps, diodes and transistors, hermetic spring contacts.
The chemical composition of the alloy 47ND
|
Fe |
C |
Si |
Mn |
Ni |
S |
P |
Cu |
|
45.72 – 49.5 |
to 0.05 |
to 0.3 |
to 0.4 |
46 – 48 |
to 0.0 15 |
to 0.015 |
4.5 – 5.5 |
Delivery forms of 47ND alloy
| Circle 47ND |
Diameter 4-300mm |
| Sheet 47ND |
Thickness 0.5-20mm |
| Ribbon 47ND |
Thickness 0.1-2mm |
| Strip 47ND |
Thickness 10-50mm |
| Wire 47ND |
Diameter 0.3-9mm |
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