Valbruna can supply steels and special alloys for engine valves in rough ground, ground or ground and polished bars depending on the production process of the customer. Rough ground or ground bars are offered for engine valves obtained by extrusion, while the ground and polished bars are proposed for upsetting.
Alloy Steels
| Grade | EN # | AISI # | UNS # | EN Name |
|---|---|---|---|---|
| VAL5 | 1.4718 | – | – | X45CRSI9-3 |
| VAL5M | 1.4731 | – | – | X40CRSIM010-2 |
Austenitic Steels
| Grade | EN # | AISI # | UNS # | EN Name | BS Name |
|---|---|---|---|---|---|
| 21MN | 1.4881 | – | – | X70CRMNNIN21-6 | – |
| 212MN | 1.4875 | EV12 | S63012 | X55CRMNNIN20-8 | – |
| 214MN | 1.4871 | EV8 | S63008 | X53CRMNNIN21-9 | 349S52 |
| 214MNC | 1.4870 | – | – | X53CRMNNINBN21-9 | 352S52 |
| 214MNCW | 1.4882 | XEV-F | S63019 | X50CRMNNINBN21-9 | – |
| ACMV | 1.4748 | – | – | X85CRM0V18-2 | – |
| ACNW | – | – | – | – | 331S40 |
| APFR/2 | – | EV4 | S63017 | – | 381S34 |
| AVW | 1.4873 | – | – | X45CRNIW18-9 | – |
| AVS | 1.4747 | – | – | X80CRNISI20 | – |
| AVS/DE | 1.4732 | – | – | X80CRSIMOW15-2 | – |
| NTR20 | 1.4866 | – | – | X33CRNIMNN23-8 | – |
| S5220 | 1.4785 | – | – | X60CRMNM0VNBN21-10 | – |
Nickel Alloys
| Grade | EN # | AISI # | UNS # | EN Name |
|---|---|---|---|---|
| GL2 | 2.4952 | – | N07080 | NICR20TIAL |