OTEVA 70 SC Plus

Oil tempered SiCr-alloyed valve spring wire

OTEVA® 70 SC PLUS is intended for manufacture of valve springs and other springs requiring extremely high fatigue properties and good relaxation properties at increased working temperatures.

Very high fatigue
High tensile
High sag resistance

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Product request

Very high fatigue with excellent surface condition

 for applications with very high cyclic fatigue requirements

Alloyed Steel

Good balance between strength and ductility suitable for various applications


Consistent surface conditions for high performance in forming process

Product information

Technical specification

Mechanical properties

Chemical composition

Surface conditions




Property Value
E modulus of elasticity 206 kN/mm²
G modulus of shear 79.5 kN/mm²

Steel grades and product standards

Nearest equivalent product standards EN 10270-2 ASTM A877 A BS 2803 685A55H JIS G3561 SWOSC-V
Nearest equivalent steel grades EN VDSiCrV SIS 142090-05

Applications using OTEVA 70 SC Plus