Patent ID: 11959404
Assignee: MAHLE INTERNATIONAL GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 2:
3. The layer-sintered valve seat ring according to claim 1, wherein the support material contains:
C: 0.7 to 1.1% by weight;
Cr: 3 to 5% by weight;
Mo: 3 to 5% by weight;
W: 3.5 to 5.5% by weight;
V: 1.0 to 2.0% by weight;
Cu: 15 to 25% by weight;
Fe: 54.8 to 73.8% by weight;
Mn: up to 0.6% by weight;
Si: up to 1.0% by weight;
wherein the remainder are production-related contaminations in the form of at least one of Ni, Co, Ca, P and S, which are present in contents of <0.3% by weight each where applicable.