Sandvik Pressurfect CNG Austenitic Chromium-nickel Steel

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Sandvik Pressurfect CNG Austenitic Chromium-nickel Steel
Categories:	Metal; Ferrous Metal; Austenitic
Material Notes:	Pressurfect CNG is a dual grade certified (ASTM 316/316L) austenitic chromium-nickel steel with minimum 2.5% molybdenum and a low carbon content used for compressed natural gas (CNG) fuel systems. The grade is characterized by: Excellent corrosion resistance in CNG environments Excellent toughness Excellent bendability Excellent impact strength Applications: Pressurfect CNG has been developed specifically for high-pressure fuel lines for compressed natural gas (CNG) systems in internal combustion engines. 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 B	<= 90
Tensile Strength, Ultimate	515 - 690 MPa	Rm
Tensile Strength, Yield	>= 220 MPa @Strain 0.2 %
	>= 250 MPa @Strain 1 %
	>= 150 MPa @Strain 0.2 %, Temperature 200 °C
	>= 165 MPa @Strain 0.2 %, Temperature 150 °C
	>= 180 MPa @Strain 0.2 %, Temperature 100 °C
	>= 180 MPa @Strain 1 %, Temperature 200 °C
	>= 195 MPa @Strain 1 %, Temperature 150 °C
	>= 200 MPa @Strain 0.2 %, Temperature 50.0 °C
	>= 215 MPa @Strain 1 %, Temperature 100 °C
	>= 230 MPa @Strain 1 %, Temperature 50.0 °C
Elongation at Break	>= 40 %	Based on L = 5.65 vS where L is the original gauge length and S the original cross-section area
Modulus of Elasticity	186 GPa @Temperature 200 °C
	194 GPa @Temperature 100 °C
	200 GPa @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
CTE, linear	16.5 µm/m-°C @Temperature 30.0 - 100 °C
	17.0 µm/m-°C @Temperature 30.0 - 200 °C
Specific Heat Capacity	0.485 J/g-°C @Temperature 20.0 °C
	0.500 J/g-°C @Temperature 100 °C
	0.515 J/g-°C @Temperature 200 °C
Thermal Conductivity	14.0 W/m-K @Temperature 20.0 °C
	15.0 W/m-K @Temperature 100 °C
	17.0 W/m-K @Temperature 200 °C

Component Elements Properties	Original Value	Comments
Carbon, C	<= 0.030 %
Chromium, Cr	17.5 %
Manganese, Mn	1.7 %
Molybdenum, Mo	2.6 %
Nickel, Ni	13 %
Phosphorus, P	<= 0.040 %
Silicon, Si	0.40 %
Sulfur, S	<= 0.015 %

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NSANDV5282 / 199846

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