Oval cross section springs are compression springs with an oval or rectangular shaped helix.
The spring pitch can be constant for the whole section of the helix or given to the spring only after a few bends depending on the loads to be obtained.
Springs can also have conical shapes and, in some cases, each coil has a different size.
Mollificio Brescia has a wide range of raw materials in stock.
The most commonly used from those available are:
Pre-galvanised carbon steel wire: according to UNI EN 102 70/1 standard in SM, SH and DH classes.
Stainless steel wire: according to UNI EN 10270-3 standard type 1.4310, 1.4310 HS, 1.4401 and 1.4568.
Pre-hardened steel wire: according to EN 10270-2 standards in FD, TD and VD classes.
Carbon steel strips annealed or hardened according to EN10132-4 standard.
Stainless steel strips according to EN 10088-2 standard 1.4310 type.
Wires and strips in copper and copper alloys such as brass and phosphor bronze according to UNI EN 12166 standard.
Thanks to our network of suppliers we can offer surface finishes such as: