Flocast 2P is normally called for when exceptionally good wearing qualities are required
Grey Iron 2P Flocast 2P is normally called for when exceptionally good wearing qualities are required or when the component design demands mechanical and physical properties superior to those of a softer, essentially ferritic cast iron. Flocast 2P is essentially pearlitic in structure with the typical Flocast fine graphite flake size and dense homogeneous structure. These properties ensure its suitability in applications demanding the ability to withstand high pressures without leaking and to resist wear in sliding friction applications. Typical hydraulic operating pressure in which Flocast 2P normally operates is around 23 MPa. Tests have shown it will withstand 68 MPa hydraulic pressure across a 3 mm thickness in hydraulic cylinder end caps. Designers should be sure to specify Flocast 2P where strength and wear resistance are required. Further design advice can be obtained from our representatives as required. Typical Mechanical Properties ImperialMetric
Tensile Strength32- 37, 000 p. s. i. 220- 260 MPa
Hardness Range (Brinell) 217- 269217- 269
Compressive Strengthca 150, 000 p. s. i. 800- 850 MPa
Transverse Strengthca 4, 000 lbs. ca 1800 kg
Modulus of Elasticity18- 20 x 10 p. s. i. 120- 125 GPa
Poisson's Ratio0. 260. 26
MicrostructureEssentially pearlitic.
Similar National Standards AmericanASTMA. 48Classes 35- 40
BritishBS1452Grade 17
AustralianAS1830T 260
GermanDIN1691GG35
JapaneseJISFC25
Technological Properties Machinability: Very Good.
Microfinish: Excellent.
Galvanising: Very Good.
Resistance to Rust & Acids: Very Good.
Damping Capacity: Very Good.
Sliding: Excellent.
Wear Resistance: Excellent.
Enamelling: Good.
Hardenability: Oil quench and temper BHN 400 max.
Annealing: Readily annealed.
Structure: Homogeneous, extremely fine grain.
Oil and pressure- tight.
Free of blowholes & inclusions.
Surface: Free of sand.
Typical Applications of Flocast 2P Hydraulics, Pnuematics: Pistons, end caps, glands, support bearings, control valves, rotors.
Machine Tools: Slide rails, gear wheels, cams, bushes, helical gears, spiral gears.
Pump, Compressors: Pistons, piston rings, liquid and vacuum pump rotors, cylinder liners, gears, bushes.
Glass Manufacture: Burners, blowmoulds, burn off chucks, bottom plates, blanks, moulds, blowheads, baffles.
Automotive Industries: Valve guides, piston rings, cylinder liners, gears, pulleys, multi groove pulleys, brake and clutch cylinder liners.
Other Applications: Gearings, mining machinery, lapping discs, chemical, paper and textile machinery parts, ship repairs.
Grey Iron 2PVS "Flocast" 2PVS is a specially developed cast iron inoculated with nickel, chrome and molybdenum. 2PVS is used for the manufacture of products with a requirement for increased tensile strength and resistance to growth or creep at elevated operating temperatures. A typical application for this grade of iron is automotive valve seats although users must be satisfied of the product suitability for unleaded petrol and gas fuelled engines which run hotter and with reduced lubrication. Typical Mechanical Properties Metric
Tensile Strength350- 400 MPa
Hardness Range (Brinell) 300- 330
MicrostructureEssentially pearlitic.
