Spring steel EN 10132 - 1/4 (DIN 17222)
Ø from 3 to 48 mm: HV 470 ÷ 580, HRC 47 ÷ 54
Ø from 50 to 200 mm: HV 435 ÷ 530, HRC 44 ÷ 51
Ø from 205 to 300 mm: HV 390 ÷ 470, HRC 40 ÷ 47
Ø from 310 to 600 mm
Martensitic stainless steel X39CrMo17 (W.N. 1.4122) (UNI EN 10088)
Ø from 4 to 48 mm: HV 470 ÷ 580, HRC 47 ÷ 54
Ø from 50 to 100 mm: HV 435 ÷ 530, HRC 44 ÷ 51
Austenitic stainless steel A4 – AISI 316 L (W.N. 1.4404)
Ø from 3 to 5 mm: resistance 1176 ÷ 1274 N/mm² - 120 ÷ 130 Kg/mm²
Ø from 6 to 27 mm: resistance 882 ÷ 981 N/mm² - 90 ÷ 100 Kg/mm²
Austenitic stainless steel AISI 301 (W.N. 1.4310)
Ø from 28 to 100 mm: resistance 1000 ÷ 1200 N/mm² - 102 ÷ 122 Kg/mm²