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Crucible Steel KAPSTAR® Mold Steel

Category	Metal , Ferrous Metal , Tool Steel
Manufacturer	Crucible Steel
Trade Name	KAPSTAR®
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Crucible Steel KAPSTAR® Mold Steel.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

Kapstar is a high hard, precipitation hardening mold steel suitable for production of machined or EDM’d plastic mold, rubber mold, and zinc die casting die components. Kapstar is supplied at about 40 HRC and further heat treating is generally not required. It is a through-hardened steel that exhibits uniform hardness through thick and thin sections. It is easily machined, polished, textured, and welded.Information provided by Crucible Industries

Physical Properties	Metric	English	Comments
Density	7.81 g/cc	0.282 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell C	32 - 42	32 - 42
Modulus of Elasticity	206 GPa	29900 ksi

Thermal Properties	Metric	English
CTE, linear	9.18 µm/m-°C @Temperature 21.1 - 100 °C	5.10 µin/in-°F @Temperature 70.0 - 212 °F
	11.2 µm/m-°C @Temperature 21.1 - 200 °C	6.20 µin/in-°F @Temperature 70.0 - 392 °F
	12.6 µm/m-°C @Temperature 21.1 - 300 °C	7.00 µin/in-°F @Temperature 70.0 - 572 °F
	13.5 µm/m-°C @Temperature 21.1 - 400 °C	7.50 µin/in-°F @Temperature 70.0 - 752 °F
Thermal Conductivity	2.19 W/m-K @Temperature 21.1 °C	15.2 BTU-in/hr-ft²-°F @Temperature 70.0 °F
	2.33 W/m-K @Temperature 100 °C	16.2 BTU-in/hr-ft²-°F @Temperature 212 °F
	2.44 W/m-K @Temperature 200 °C	16.9 BTU-in/hr-ft²-°F @Temperature 392 °F
	2.61 W/m-K @Temperature 300 °C	18.1 BTU-in/hr-ft²-°F @Temperature 572 °F

Component Elements Properties	Metric	English	Comments
Aluminum, Al	1.0 %	1.0 %
Carbon, C	0.12 %	0.12 %
Chromium, Cr	0.50 %	0.50 %
Copper, Cu	0.20 %	0.20 %
Iron, Fe	91.8 %	91.8 %	as balance
Manganese, Mn	1.5 %	1.5 %
Molybdenum, Mo	0.25 %	0.25 %
Nickel, Ni	4.0 %	4.0 %
Silicon, Si	0.40 %	0.40 %
Sulfur, S	0.10 %	0.10 %
Vanadium, V	0.10 %	0.10 %

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