Sandvik Bioline 1RK91 Strip steel

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Sandvik Bioline 1RK91 Strip steel
Categories:	Metal; Ferrous Metal; Stainless Steel
Material Notes:	Sandvik Bioline 1RK91 is a precipitation hardening stainless steel specifically designed for applications requiring high strength combined with good ductility in the final product and high formability in the as delivered condition. The strength is increased after ageing of the final product. The characteristics in general can be said to be a combination of properties of ordinary austenitic stainless and low alloyed ferritic steels. For example, elastic modulus, mechanical properties and thermal expansion are comparable to ferritic steels (such as low alloyed carbon steels or chromium steels) while corrosion resistance is more comparable to austenitic stainless steels. Excellent mechanical properties; very high tensile strength and hardness levels can be achieved Corrosion resistance comparable to ASTM 304L or ASTM 316L depending on condition Retained mechanical properties at temperatures up to at least 400°C (750°F) Very good relaxation properties Good weldability Information provided by Sandvik
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Physical Properties	Original Value	Comments

Density	7.70 g/cc

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	<= 750 MPa	Strip, Annealed
	950 - 1850 MPa	Flat rolled wire, cold worked
	950 - 1850 MPa	Strip, cold rolled
	950 - 2150 MPa	Round wire, cold worked
	1000 - 2100 MPa	Bar, Aged
	1400 - 2500 MPa	Flat rolled wire, aged
	1400 - 2600 MPa	Strip, cold rolled + aged
	1400 - 3100 MPa	Round wire, Aged
	1510 MPa @Temperature 400 °C	Bar form
	1630 MPa @Temperature 300 °C	Bar form
	1770 MPa @Temperature 200 °C	Bar form
	1900 MPa @Temperature 100 °C	Bar form
	1975 MPa @Temperature 400 °C	Wire and strip form
	2000 MPa @Temperature 20.0 °C	Bar form
	2125 MPa @Temperature 300 °C	Wire and strip form
	2200 MPa @Temperature 200 °C	Wire and strip form
	2400 MPa @Temperature 100 °C	Wire and strip form
	2450 MPa @Temperature 20.0 °C	Wire and strip form
Tensile Strength, Yield	<= 350 MPa @Strain 0.2 %	Strip, Annealed
	1100 MPa @Strain 0.2 %	Bar, cold worked
	600 - 1800 MPa @Strain 0.2 %	Strip, cold rolled
	600 - 1800 MPa @Strain 0.2 %	Flat rolled wire, cold worked
	900 - 1800 MPa @Strain 0.2 %	Bar, Aged
	1200 - 2400 MPa @Strain 0.2 %	Flat rolled wire, aged
	1200 - 2500 MPa @Strain 0.2 %	Strip, cold rolled + aged
Modulus of Elasticity	185 - 200 GPa

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000830 ohm-cm	aged
	0.0000970 ohm-cm	cold worked

Thermal Properties	Original Value	Comments
CTE, linear	11.5 µm/m-°C @Temperature 30.0 - 100 °C	Cold worked
	11.5 µm/m-°C @Temperature 30.0 - 200 °C	Cold worked
	11.5 µm/m-°C @Temperature 30.0 - 300 °C	Cold worked
	11.5 µm/m-°C @Temperature 30.0 - 400 °C	Cold worked
	11.5 µm/m-°C @Temperature 30.0 - 100 °C	Aged
	12.0 µm/m-°C @Temperature 30.0 - 200 °C	Aged
	12.0 µm/m-°C @Temperature 30.0 - 300 °C	Aged
	12.5 µm/m-°C @Temperature 30.0 - 400 °C	Aged
Specific Heat Capacity	0.455 J/g-°C @Temperature 20.0 °C
	0.490 J/g-°C @Temperature 100 °C
	0.525 J/g-°C @Temperature 200 °C
	0.560 J/g-°C @Temperature 300 °C
	0.600 J/g-°C @Temperature 400 °C
Thermal Conductivity	14.0 W/m-K @Temperature 20.0 °C
	16.0 W/m-K @Temperature 100 °C
	18.0 W/m-K @Temperature 200 °C
	20.0 W/m-K @Temperature 300 °C
	21.0 W/m-K @Temperature 400 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	0.40 %
Carbon, C	<= 0.020 %
Chromium, Cr	12 %
Copper, Cu	2.0 %
Manganese, Mn	<= 0.50 %
Molybdenum, Mo	4.0 %
Nickel, Ni	9.0 %
Phosphorus, P	<= 0.020 %
Silicon, Si	<= 0.50 %
Sulfur, S	<= 0.0050 %
Titanium, Ti	0.90 %

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NSANDV5180 / 199744

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