①,The grooving angle "a" applies only to grooved pins made from steel (a≈70°). The grooving angle may be modified depending on resilience of material. ②,Material a) Steel (St), hardness 125 HV30 to 245 HV30 b) Austenitic stainless steel A1 according to ISO 3506-1 hardness 210 HV30 to 280 HV30 |