R 15 VD SCS Oil tempered SiCr alloyed valve spring steel wire made from shaved wire rod for high dynamic stress.
round wires with diameter ≥ 2.4 mm
40 µm-tested by eddy current

R 15 KD Oil tempered SiCr alloyed clutch spring steel wire for medium dynamic stress.

round wires with diameter ≥ 2.4 mm
40/60 µm-tested by eddy current

R 20 VD SC Oil tempered SiCrV alloyed valve spring steel wire for medium to high dynamic stress.
round wires with diameter ≥ 2.4 mm
40 µm-tested by eddy current

R 20 FD Oil tempered SiCrV alloyed valve spring steel wire for static stress.

R 15 VD SC Oil tempered SiCr alloyed valve spring steel wire for high dynamic stress.

round wires with diameter ≥ 2.4 mm
40 µm-tested by eddy current

R 15 FD Oil tempered SiCr alloyed spring steel wire for static stress.

round wires with diameter
_

R 20 VD Oil tempered SiCrV alloyed valve spring steel wire for high dynamic stress.

round wires with diameter ≥ 2.4 mm
40 µm-tested by eddy current