Shock Absorber Steel

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Wickeder Steel Company Shock Absorber Steel (SAS) is a high-carbon, high strength, valve quality, precision strip steel. WSC-SAS is produced from the grade WSC100 which has undergone both a secondary metallurgical treatment as well as a special cold-rolling process. Both of these treatments are designed to yield a strip with the properties required for the dynamic loading conditions found in this application. The subsequent precision heat-treatment combined with in-line surface finishing ensures the required fatigue performance.

Product Specification:

Grades: WSC100

Analysis: (wt. % nominal)

C	1.00
Si	0.20
Mn	0.40
Pmax	0.020
Cr	0.024

Structure:

A matrix of fine tempered martensite with a uniform distribution
of fine carbides. No decarburization is allowed.

Thickness:

0.006, 0.008, 0.010, 0.012, 0.015, 0.018, 0.020in.
Thickness tolerance is T2 based on the internationally recognized Swedish Tolerance Tables for Precision Strip Steel.

Widths:

Various - from "wide" heat-treated, polished and inspected stock.
Width tolerance +/- 0.005in.

Surface Finish:

Bright Hardened or Bright Polished.
Ra < 6uin. Maximum surface roughness. Value is determined with profilometer set to a cut-off length of 0.01in.
The maximum depth of light scratches is 2um. Sporadic light surface defects of a maximum 4um will be tolerated as long as they are not surface discontinuities which would affect fatigue properties of the strip.

Hardness:

Thickness(in)	UTS(ksi)	HR15N
0.006	297	88
0.008	290	87
0.010	283	87
0.012	276	86
0.015	268	86
0.020	254	85

Tensile strength values +/- 7.5ksi. Hardness values determined in accordance with ASTM E-18-05

Flatness:

0.002 PIW (0.2% of the nominal strip width.)

Edge Condition:

Slit, deburred. Skived edges can be supplied for special valve applications.