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Crucible Steel CRUCIBLE A9 Tool Steel

Category	Metal , Ferrous Metal , Tool Steel , Air-Hardening Steel
Manufacturer	Crucible Steel
Trade Name	CRUCIBLE
Port	Shanghai port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Crucible Steel CRUCIBLE A9 Tool Steel.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

Crucible A9 is an air-hardening tool steel combining some of characteristics of the 5% chromium hot-work grades (such as H13) with the high attainable hardness and compressive yield strength of the cold-work grades such as A2). Crucible A9 is suitable for hot and cold work applications requiring high toughness, hardness, or heat check resistance, and moderate wear resistance.Information provided by Crucible Industries

Physical Properties	Metric	English	Comments
Density	7.78 g/cc	0.281 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	217 - 241	217 - 241
Hardness, Rockwell C	47 @Tempering Temp. 593 °C	47 @Tempering Temp. 1100 °F	hardened at 1800°F then tempered
	52.5 @Tempering Temp. 566 °C	52.5 @Tempering Temp. 1050 °F	hardened at 1800°F then tempered
	54.5 @Tempering Temp. 538 °C	54.5 @Tempering Temp. 1000 °F	hardened at 1800°F then tempered
	56 @Tempering Temp. 482 °C	56 @Tempering Temp. 900 °F	hardened at 1800°F then tempered
	56.5 @Tempering Temp. 510 °C	56.5 @Tempering Temp. 950 °F	hardened at 1800°F then tempered
Modulus of Elasticity	207 GPa	30000 ksi
Charpy Impact	67.8 J @Tempering Temp. 482 °C	50.0 ft-lb @Tempering Temp. 900 °F	hardened at 1800°F then tempered; C-notch
	67.8 J @Tempering Temp. 510 °C	50.0 ft-lb @Tempering Temp. 950 °F	hardened at 1800°F then tempered; C-notch
	152 J @Tempering Temp. 538 °C	112 ft-lb @Tempering Temp. 1000 °F	hardened at 1800°F then tempered; C-notch
	182 J @Tempering Temp. 566 °C	134 ft-lb @Tempering Temp. 1050 °F	hardened at 1800°F then tempered; C-notch
	205 J @Tempering Temp. 593 °C	151 ft-lb @Tempering Temp. 1100 °F	hardened at 1800°F then tempered; C-notch

Thermal Properties	Metric	English
CTE, linear	12.1 µm/m-°C @Temperature 20.0 - 427 °C	6.70 µin/in-°F @Temperature 68.0 - 800 °F
	12.4 µm/m-°C @Temperature 20.0 - 538 °C	6.90 µin/in-°F @Temperature 68.0 - 1000 °F
	12.6 µm/m-°C @Temperature 20.0 - 649 °C	7.00 µin/in-°F @Temperature 68.0 - 1200 °F
Thermal Conductivity	25.8 W/m-K @Temperature 95.0 °C	179 BTU-in/hr-ft²-°F @Temperature 203 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	0.50 %	0.50 %
Chromium, Cr	5.2 %	5.2 %
Iron, Fe	89.2 %	89.2 %	as balance
Manganese, Mn	0.30 %	0.30 %
Molybdenum, Mo	1.4 %	1.4 %
Nickel, Ni	1.4 %	1.4 %
Silicon, Si	1.0 %	1.0 %
Vanadium, V	1.0 %	1.0 %

Chemical Properties	Metric	English	Comments
Critical Temperature	804 °C	1480 °F

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