Through hardened

Undergoing quenching and tempering in a vacuum environment will not lead to surface modifications such as carburization, oxidation, decarburization.
The surfaces of the parts fetched from the vacuum furnace are smooth and clear. TSI adopts the vacuum heat treatment process for tool steel and power steel, allowing the surface and core of the workpieces to have the same hardness.

Alloy Type	Main Base	Other Component	Inlay Hardness	Wear Resistance	Corrosion Resistance	Application
S-08	Cr	Mo/V	HRC 62-64	★★★★★	★★★★☆	Glass Fiber≦60%
S-23	Cr	Mo/W/V	HRC 60-62	★★★★☆	★★★★☆	Glass Fiber≦40%
S-04	Cr	Mo/V	HRC 58-60	★★★★	★★★☆	Glass Fiber≦25%
S-09	Cr	Mo/V	HRC 54-58	★★★★	★★★★☆	Glass Fiber≦25%
S-02	Cr	Mo/V	HRC 54-58	★★★★	★★★★	Glass Fiber≦25%
S-39	Cr	Mo/W/V	HRC 54-58	★★★★	★★★★☆	Glass Fiber≦25%
S-55	Cr	Mo/Cr/V	HRC 60-62	★★★☆	★★★★	Glass Fiber≦25%
S-61	Cr	Mo/V	HRC 48-52	★★★	★★★☆	Glass Fiber≦10%
S-76	Ni	--	--	--	★★★★★★	TEFLON PURPOSE

TAN STAR INDUSTRIES INC.