Sandvik Sanicro 29 fro OCTG Tube and pipe, seamless

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Sandvik Sanicro 29 fro OCTG Tube and pipe, seamless
Categories:	Metal; Ferrous Metal; Alloy Steel; Austenitic
Material Notes:	Sanicro 29 is a high-alloy austenitic stainless steel (CRA) for OCTG down-hole applications in particularly corrosive conditions. The grade is characterized by: Very good resistance to sulphide stress cracking and stress corrosion cracking (SCC) in H2S environments Very high resistance to pitting and crevice corrosion Higher pitting resistance equivalent (PRE) than Sanicro 28 (UNS N08028) Sanicro 29 is developed specifically for improved localized corrosion resistance where the environment contains high chloride concentrations, CO and H S at high temperatures. Such an environment causes corrosion in lower alloyed materials. Sanicro 29 offers a cost effective solution to such corrosion problems over the more expensive nickel alloys. Information provided by Sandvik
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Physical Properties	Original Value	Comments

Density	8.00 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell C	<= 35	Sanicro 29-110
	<= 37	Sanicro 29-125
Tensile Strength, Ultimate	>= 795 MPa	Sanicro 29-110
	>= 895 MPa	Sanicro 29-125
Tensile Strength, Yield	760 - 965 MPa @Strain 0.2 %	Sanicro 29-110
	860 - 1035 MPa @Strain 0.2 %	Sanicro 29-125
Elongation at Break	>= 10 %	Sanicro 29-125
	>= 11 %	Sanicro 29-110
Modulus of Elasticity	174 GPa @Temperature 300 °C
	182 GPa @Temperature 200 °C
	190 GPa @Temperature 100 °C
	195 GPa @Temperature 20.0 °C
Poissons Ratio	0.30

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000100 ohm-cm @Temperature 150 °C
	0.0000100 ohm-cm @Temperature 200 °C
	0.0000101 ohm-cm @Temperature 20.0 °C
	0.0000101 ohm-cm @Temperature 100 °C
	0.0000104 ohm-cm @Temperature 250 °C
	0.0000111 ohm-cm @Temperature 300 °C

Thermal Properties	Original Value	Comments
CTE, linear	13.0 µm/m-°C @Temperature 30.0 - 50.0 °C
	14.5 µm/m-°C @Temperature 30.0 - 100 °C
	15.0 µm/m-°C @Temperature 30.0 - 150 °C
	15.0 µm/m-°C @Temperature 30.0 - 200 °C
	15.0 µm/m-°C @Temperature 30.0 - 250 °C
	15.0 µm/m-°C @Temperature 30.0 - 300 °C
Specific Heat Capacity	0.460 J/g-°C @Temperature 20.0 °C
	0.465 J/g-°C @Temperature 50.0 °C
	0.480 J/g-°C @Temperature 100 °C
	0.490 J/g-°C @Temperature 150 °C
	0.495 J/g-°C @Temperature 200 °C
	0.505 J/g-°C @Temperature 250 °C
	0.515 J/g-°C @Temperature 300 °C
Thermal Conductivity	11.0 W/m-K @Temperature 20.0 °C
	11.0 W/m-K @Temperature 50.0 °C
	12.0 W/m-K @Temperature 100 °C
	13.0 W/m-K @Temperature 150 °C
	14.0 W/m-K @Temperature 200 °C
	15.0 W/m-K @Temperature 250 °C
	16.0 W/m-K @Temperature 300 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.020 %
Chromium, Cr	27 %
Copper, Cu	1.0 %
Manganese, Mn	<= 2.5 %
Molybdenum, Mo	4.4 %
Nickel, Ni	31.5 %
Phosphorus, P	<= 0.025 %
Silicon, Si	<= 1.0 %
Sulfur, S	<= 0.015 %

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NSANDV5250 / 199814

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