Crucible Steel REX® M3-1 High Speed Steel, AISI M3-1

Category	Metal , Ferrous Metal , Tool Steel
Manufacturer	Crucible Steel
Trade Name
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Crucible Steel REX® M3-1 High Speed Steel, AISI M3-1.pdf
Price	EMAIL US sales@lookpolymers.com

Material Notes:

REX M3-1 is a lower carbon, lower vanadium modification of M3-2 high speed steel. This lower alloy content results in better machining and grinding characteristics compared to M3-2, with a slight improvement in toughness and a moderate decrease in wear resistance in between that of M2 and M3-2.Information provided by Crucible Industries

Physical Properties	Metric	English	Comments
Density	8.17 g/cc	0.295 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	225 - 255	225 - 255
Hardness, Rockwell C	65	65	oil quenched from 2100°F
	52 @Tempering Temp. 649 °C	52 @Tempering Temp. 1200 °F	oil quenched from 2100°F then tempered
	56 @Tempering Temp. 621 °C	56 @Tempering Temp. 1150 °F	oil quenched from 2100°F then tempered
	60 @Tempering Temp. 593 °C	60 @Tempering Temp. 1100 °F	oil quenched from 2100°F then tempered
	62 @Tempering Temp. 566 °C	62 @Tempering Temp. 1050 °F	oil quenched from 2100°F then tempered
	63 @Tempering Temp. 551.7 °C	63 @Tempering Temp. 1025 °F	oil quenched from 2100°F then tempered
	63.5 @Tempering Temp. 538 °C	63.5 @Tempering Temp. 1000 °F	oil quenched from 2100°F then tempered
Modulus of Elasticity	207 GPa	30000 ksi

Thermal Properties	Metric	English
CTE, linear	11.5 µm/m-°C @Temperature 21.1 - 260 °C	6.40 µin/in-°F @Temperature 70.0 - 500 °F
	11.9 µm/m-°C @Temperature 21.1 - 427 °C	6.60 µin/in-°F @Temperature 70.0 - 800 °F
	12.1 µm/m-°C @Temperature 21.1 - 538 °C	6.70 µin/in-°F @Temperature 70.0 - 1000 °F

Component Elements Properties	Metric	English	Comments
Carbon, C	1.02 %	1.02 %
Chromium, Cr	4.0 %	4.0 %
Iron, Fe	81.25 %	81.25 %	as balance
Manganese, Mn	0.25 %	0.25 %
Molybdenum, Mo	5.0 %	5.0 %
Silicon, Si	0.30 %	0.30 %
Sulfur, S	0.030 %	0.030 %
Tungsten, W	5.75 %	5.75 %
Vanadium, V	2.4 %	2.4 %

Chemical Properties	Metric	English	Comments
Critical Temperature	835.0 °C	1535 °F

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