Materials

I’ve been thinking for a few days about the right approach: how can you safely enamel a brooch, for example, onto which a pin has been soldered? Why it can go wrong The question is: should you enamel first, or start by soldering the pin? The physical parameters are as follows: Silver solder melts between 700 and 800°C, roughly speaking, depending on the type. Hot enamel melts at around 800°C (810°C for the WG Ball enamel I use)....

What is steel, anyway? Wikipedia tells us that steel is an iron-based alloy with a carbon content of between 0.02% and 2% by mass, which may or may not contain other chemical elements (impurities). The elements added to iron modify its physico-chemical characteristics. Carbon is always present, but in variable quantities, which influences the alloy’s maximum hardness or its ability to be enamelled, for example. When the carbon content exceeds 2....