OTEVA 70 SC

Oil tempered SiCr-alloyed valve spring wire

OTEVA® 70 SC is a Super Clean steel, especially intended for the manufacture of clutch/ transmission springs with extremely high fatigue properties and good relaxation properties at moderately increased working temperature. The wire is manufactured in shaved condition in sizes from Ø 0.50 mm to 10.0 mm, or in egg or elliptical shape corresponding to round cross section 2.50 mm to 6.50 mm Other wire sizes and shapes on request.

High tensile
High fatigue
High sag resistance

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High fatigue with excellent surface condition

for applications with high cyclic fatigue requirements

Alloyed Steel

Good balance between strength and ductility suitable for various applications

Coilability

Consistent surface conditions for high performance in forming process

Product information

Technical specification

Mechanical properties

Chemical composition

Surface conditions

Recommendations

Additional

Documents

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 VDSiCr SIS 142090-05
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