Ovako 18CrMo8-5* 225A Steel, Hardening

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

Ovako 18CrMo8-5* 225A Steel, Hardening
Categories:	Metal; Ferrous Metal; Alloy Steel
Material Notes:	General Information: Ovako 225 is a steel specially designed for nitriding but is also suitable for carburizing or applications requiring quenched and tempered steels. High nitriding rate Suitable for nitriding, case carburizing or quench and tempering Also suitable for applications require quenched and tempered steel in bars with diameter 25-160 mm. Weldable under certain conditions Variant 225A - Standard quality Variant 225C - With a reduced sulphur content for a reduced number of sulphide inclusions Information provided by Ovako
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Density	7.80 g/cc	0.282 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	255 - 320 @Thickness <=120 mm	255 - 320 @Thickness <=4.72 in
	265 - 320 @Thickness 80.0 - 120 mm	265 - 320 @Thickness 3.15 - 4.72 in
	265 - 320 @Thickness 80.0 - 120 mm	265 - 320 @Thickness 3.15 - 4.72 in
	275 - 330 @Thickness 80.0 mm	275 - 330 @Thickness 3.15 in
	275 - 330 @Thickness >=80.0 mm	275 - 330 @Thickness >=3.15 in
Tensile Strength	>= 840 MPa @Thickness <=120 mm	>= 122000 psi @Thickness <=4.72 in
	>= 860 MPa @Thickness 80.0 - 120 mm	>= 125000 psi @Thickness 3.15 - 4.72 in
	>= 860 MPa @Thickness 80.0 - 120 mm	>= 125000 psi @Thickness 3.15 - 4.72 in
	>= 880 MPa @Thickness 80.0 mm	>= 128000 psi @Thickness 3.15 in
	>= 880 MPa @Thickness >=80.0 mm	>= 128000 psi @Thickness >=3.15 in
Tensile Strength, Yield	>= 740 MPa @Thickness <=120 mm	>= 107000 psi @Thickness <=4.72 in	R_eh
	>= 760 MPa @Thickness 80.0 - 120 mm	>= 110000 psi @Thickness 3.15 - 4.72 in	R_eh
	>= 760 MPa @Thickness 80.0 - 120 mm	>= 110000 psi @Thickness 3.15 - 4.72 in	R_eh
	>= 800 MPa @Thickness 80.0 mm	>= 116000 psi @Thickness 3.15 in	R_eh
	>= 800 MPa @Thickness >=80.0 mm	>= 116000 psi @Thickness >=3.15 in	R_eh
Elongation at Break	12 % @Thickness 80.0 mm	12 % @Thickness 3.15 in
	12 % @Thickness >=80.0 mm	12 % @Thickness >=3.15 in
	12 % @Thickness 80.0 - 120 mm	12 % @Thickness 3.15 - 4.72 in
	12 % @Thickness 80.0 - 120 mm	12 % @Thickness 3.15 - 4.72 in
	12 % @Thickness <=120 mm	12 % @Thickness <=4.72 in
Reduction of Area	55 % @Thickness 80.0 mm	55 % @Thickness 3.15 in
	55 % @Thickness >=80.0 mm	55 % @Thickness >=3.15 in
	55 % @Thickness 80.0 - 120 mm	55 % @Thickness 3.15 - 4.72 in
	55 % @Thickness 80.0 - 120 mm	55 % @Thickness 3.15 - 4.72 in
	55 % @Thickness <=120 mm	55 % @Thickness <=4.72 in
Modulus of Elasticity	210 GPa	30500 ksi
Poissons Ratio	0.30	0.30
Shear Modulus	80.0 GPa	11600 ksi
Impact Test	27.0 J @Thickness 80.0 - 120 mm, Temperature -20.0 °C	19.9 ft-lb @Thickness 3.15 - 4.72 in, Temperature -4.00 °F
	40.0 J @Thickness <=120 mm, Temperature 20.0 °C	29.5 ft-lb @Thickness <=4.72 in, Temperature 68.0 °F
	40.0 J @Thickness >=80.0 mm, Temperature -20.0 °C	29.5 ft-lb @Thickness >=3.15 in, Temperature -4.00 °F
	60.0 J @Thickness 80.0 - 120 mm, Temperature 20.0 °C	44.3 ft-lb @Thickness 3.15 - 4.72 in, Temperature 68.0 °F
	80.0 J @Thickness 80.0 mm, Temperature 20.0 °C	59.0 ft-lb @Thickness 3.15 in, Temperature 68.0 °F

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.00000200 - 0.00000250 ohm-cm	0.00000200 - 0.00000250 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	12.0 µm/m-°C @Temperature 20.0 - 300 °C	6.67 µin/in-°F @Temperature 68.0 - 572 °F
Specific Heat Capacity	0.460 - 0.480 J/g-°C @Temperature 50.0 - 100 °C	0.110 - 0.115 BTU/lb-°F @Temperature 122 - 212 °F
Thermal Conductivity	40.0 - 45.0 W/m-K	278 - 312 BTU-in/hr-ft²-°F	Ambient temperature
Transformation Temperature	416 °C	781 °F	MS
	751 °C	1380 °F	AC1
	853 °C	1570 °F	AC3

Component Elements Properties	Metric	English	Comments
Carbon, C	0.16 - 0.19 %	0.16 - 0.19 %
Chromium, Cr	1.75 - 2.0 %	1.75 - 2.0 %
Iron, Fe	95.36 - 96.62 %	95.36 - 96.62 %	As Balance
Manganese, Mn	0.75 - 1.0 %	0.75 - 1.0 %
Molybdenum, Mo	0.50 - 0.60 %	0.50 - 0.60 %
Nickel, Ni	<= 0.30 %	<= 0.30 %
Phosphorus, P	<= 0.020 %	<= 0.020 %
Silicon, Si	0.20 - 0.40 %	0.20 - 0.40 %
Sulfur, S	0.020 - 0.030 %	0.020 - 0.030 %
Vanadium, V	<= 0.10 %	<= 0.10 %

Descriptive Properties
Weldability	CEV 0.94_max
	Pcm 0.42_max

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

Users viewing this material also viewed the following:
ATI Allegheny Ludlum Type AL 441HP™ Stainless Steel Alloy
ATI Allegheny Ludlum Stainless Steel Type 439/AL 439HP™ (ASTM XM-8; UNS S43035)
ATI Allegheny Ludlum AL 433™ Ferritic Stainless Steel, Annealed
Astralloy 4800® Wear Resistant Steel
ASTM A542/A542M Alloy Steel, Chromium Molybdenum

NOVAKO096 / 234395

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message