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Bohler-Uddeholm O1 Cold Work Tool Steel

Category	Metal , Ferrous Metal , Alloy Steel , Tool Steel , Cold Work Steel
Manufacturer	Bohler-Uddeholm
Trade Name
Port	Ningbo port,China
Trade Terms	FOB, CFR, CIF
Payment Terms	L/C, T/T, Western Union
Download PDF	Bohler-Uddeholm O1 Cold Work Tool Steel.pdf
Price	EMAIL US sales@lookpolymers.com
	Online Service lookpolymers 27660005

Material Notes:

Manganese-chromium-tungsten alloyed steelA general purpose oil hardening tool steel suitable for back up and punch holder plates. Features of this grade include a good combination of high surface hardness and toughness after hardening and tempering.AISI O1 is characterized by: Good machinability Good dimensional stability in hardening A good combination of high surface hardness and toughness after hardening and tempering

Physical Properties	Metric	English	Comments
Density	7.81 g/cc	0.282 lb/in³	hardened to 62 HRC
	7.70 g/cc @Temperature 399 °C	0.278 lb/in³ @Temperature 750 °F	hardened to 62 HRC
	7.75 g/cc @Temperature 191 °C	0.280 lb/in³ @Temperature 375 °F	hardened to 62 HRC

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	190	190	Soft annealed
Modulus of Elasticity	193 GPa	28000 ksi	(hardened to 62 HRC)
	172 GPa @Temperature 399 °C	25000 ksi @Temperature 750 °F	hardened to 62 HRC
	186 GPa @Temperature 191 °C	27000 ksi @Temperature 375 °F	hardened to 62 HRC
Compressive Yield Strength	1350 MPa	196000 psi	0.2%, hardened to 50 HRC
	1800 MPa	261000 psi	0.2%, hardened to 55 HRC
	2150 MPa	312000 psi	0.2%, hardened to 60 HRC
	2200 MPa	319000 psi	0.2%, hardened to 62 HRC

Thermal Properties	Metric	English	Comments
CTE, linear	6.30 µm/m-°C @Temperature 20.0 - 400 °C	3.50 µin/in-°F @Temperature 68.0 - 752 °F	hardened to 62 HRC
	6.50 µm/m-°C @Temperature 20.0 - 200 °C	3.61 µin/in-°F @Temperature 68.0 - 392 °F	hardened to 62 HRC
Specific Heat Capacity	0.460 J/g-°C @Temperature 20.0 °C	0.110 BTU/lb-°F @Temperature 68.0 °F	hardened to 62 HRC
Thermal Conductivity	32.0 W/m-K @Temperature 20.0 °C	222 BTU-in/hr-ft²-°F @Temperature 68.0 °F	hardened to 62 HRC
	33.0 W/m-K @Temperature 191 °C	229 BTU-in/hr-ft²-°F @Temperature 375 °F	hardened to 62 HRC
	34.0 W/m-K @Temperature 399 °C	236 BTU-in/hr-ft²-°F @Temperature 750 °F	hardened to 62 HRC

Component Elements Properties	Metric	English
Carbon, C	0.95 %	0.95 %
Chromium, Cr	0.60 %	0.60 %
Manganese, Mn	1.1 %	1.1 %
Tungsten, W	0.60 %	0.60 %

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