Properties

Mechanical properties

Steel for enamelling has the following mechanical properties (skin-passed) - these are measured transverse to the rolling direction:

^1. The values of the yield strength are those of the 0.2% yield strength for products that do not present a definite yield point, and the lower yield strength R_eL for the other products.
^2. For a thickness of 0.5 mm < t < 0.7 mm the maximum value of the yield strength is increased by 20 N/mm² and the minimum elongation after fracture is decreased by 2%.
^3. For a thickness of t ≤ 0.5 mm the maximum value of the yield strength is increased by 40 N/mm² and the minimum elongation after fracture is decreased by 4%.
   Elongation after fracture A uses test piece length L₀ = 80 mm.
^4. The r value applies to a thickness of t ≥ 0.5 mm.
   For a thickness of t > 2 mm, the r value is decreased by 0.2.
^5. For a thickness of t ≥ 1.5 mm the maximum value of the yield strength is 225 N/mm².
^6. For design purposes, a lower yield strength R_eL of at least 120 N/mm² can be assumed.
 

Chemical composition

Tata Steel complies with the following cast analysis:

The elements P and Cu are kept within certain limits to ensure that the reactivity of the steel surface is as constant as possible. Under normal conditions this leads to a reproducible enamelling result.
All values are in weight%.