Bohler-Uddeholm ORVAR® 2M / AISI H13 Hot Work Tool Steel

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Bohler-Uddeholm ORVAR® 2M / AISI H13 Hot Work Tool Steel
Categories:	Metal; Ferrous Metal; Alloy Steel; Chrome-moly Steel; Tool Steel; Hot Work Steel
Material Notes:	Orvar 2 Microdized is a chromium-molybdenum-vanadium alloyed steel ORVAR® 2M / AISI H13 is a conventionally produced hot work tool steel with overall good ductility, toughness, wear resistance, hardenability and machinability. ORVAR 2 Microdized is characterized by: Good resistance to abrasion at both low and high temperatures High level of toughness and ductility Uniform and high level of machinability and polishability Good high-temperature strength and resistance to thermal fatigue Very limited distortion during hardening. Applications: Tools for Extrusion-Dies, Backers, dieholders, liners, dummy blocks, stems; Plastic Molding Applications- Injection moulds, Compression/transfer moulds; and Sever cold punching, scrap shears, hot shearing, shrink rings(eg for cemented carbide dies), wear-resisting parts.
Key Words:	W.-Nr. 1.2344
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Physical Properties	Original Value	Comments

Density	0.281 lb/in³	hardened to 45 HRC
	0.274 lb/in³ @Temperature 599 °C	hardened to 45 HRC
	0.277 lb/in³ @Temperature 399 °C	hardened to 45 HRC

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	45 - 52
Tensile Strength, Ultimate	206000 psi	hardened to 45 HRC
	263000 psi	hardened to 52 HRC
Tensile Strength, Yield	185000 psi @Strain 0.2 %	hardened to 45 HRC
	220000 psi @Strain 0.2 %	hardened to 52 HRC
Modulus of Elasticity	30500 ksi	hardened to 45 HRC
	20300 ksi @Temperature 599 °C	hardened to 45 HRC
	26100 ksi @Temperature 399 °C	hardened to 45 HRC

Thermal Properties	Original Value	Comments
CTE, linear	7.00 µin/in-°F @Temperature 399 °C	hardened to 45 HRC
	7.30 µin/in-°F @Temperature 599 °C	hardened to 45 HRC
Thermal Conductivity	174 BTU-in/hr-ft²-°F	hardened to 45 HRC
	29.0 W/m-K @Temperature 399 °C	hardened to 45 HRC
	30.0 W/m-K @Temperature 599 °C	hardened to 45 HRC

Component Elements Properties	Original Value	Comments
Carbon, C	0.39 %
Chromium, Cr	5.3 %
Iron, Fe	90.71 %	As Balance
Manganese, Mn	0.40 %
Molybdenum, Mo	1.3 %
Silicon, Si	1.0 %
Vanadium, V	0.90 %

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NBUCOR11 / 15480

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