Traid Villarroya TVH® TV25 (GG25) Perlitic Cast Iron with Lamellar Graphite, Continuous Cast

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Traid Villarroya TVH® TV25 (GG25) Perlitic Cast Iron with Lamellar Graphite, Continuous Cast
Categories:	Metal; Ferrous Metal; Cast Iron
Material Notes:	Machinability: very good Wear resistance: very good Inductive or flame-hardening capacity: good Nitride hardening capacity: good Quenching: very good Weldability: partially weldable with special electrodes Industry Applications: Compressors Cylinders Pistons Pumps Information provided by Traid Villarroya Hnos. S.L.
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Physical Properties	Metric	English	Comments

Density	7.15 g/cc	0.258 lb/in³

Mechanical Properties	Metric	English	Comments
Tensile Strength	250 - 350 MPa	36300 - 50800 psi	Rm
Tensile Strength, Yield	165 - 228 MPa	23900 - 33100 psi	Rp 0.2
Elongation at Break	0.80 %	0.80 %	A
Modulus of Elasticity	103 - 118 GPa	14900 - 17100 ksi
Flexural Strength	340 MPa	49300 psi	ddß
Compressive Strength	840 MPa	122000 psi	ddß
Poissons Ratio	0.26	0.26
Shear Strength	290 MPa	42100 psi	ddß
	290 MPa	42100 psi	Torsional, ddß

Thermal Properties	Metric	English	Comments
Thermal Conductivity	47.0 W/m-K	326 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English	Comments
Carbon, C	2.9 - 3.1 %	2.9 - 3.1 %
Iron, Fe	93.7 - 94.5 %	93.7 - 94.5 %	As Remainder
Manganese, Mn	0.80 - 1.1 %	0.80 - 1.1 %
Silicon, Si	1.8 - 2.1 %	1.8 - 2.1 %

Descriptive Properties
Alternating tensile-comp. strength	60 MPa
Fracture toughness K_IC	480 N/mm3/2
Reversed bending strength	120 MPa		dbß

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NTRAID952 / 318919

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