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Below you find links to Information on our Centrifugally Cast Iron Bar range.
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 3mm 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
| |
Imperial |
Metric |
| Tensile Strength |
32-37,000 p.s.i. |
220-260 MPa |
| Hardness Range (Brinell) |
217-269 |
217-269 |
| Compressive Strength |
ca 150,000 p.s.i. |
800-850 MPa |
| Transverse Strength |
ca 4,000 lbs. |
ca 1800 kg |
| Modulus of Elasticity |
18-20 x 10 p.s.i. |
120-125 GPa |
| Poisson's Ratio |
0.26 |
0.26 |
| Microstructure |
Essentially pearlitic. |
Similar National Standards
| American |
ASTM |
A.48 |
Classes 25 |
| British |
BS |
1452 |
Grade 14 |
| Australian |
AS |
1830 |
T 220 |
| German |
DIN |
1691 |
GG 20 |
| Japanese |
JIS |
FC |
25 |
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. |
Ductile Iron 3D
"Flocast" bar is available as ductile iron, also as "spheroidal graphite" or "nodular iron", in a stock grade designated 3D.
Ductile irons differ from the grey irons in that the graphite occurs as spheroids or "nodules" instead of flakes. The resulting material has generally higher strength than grey iron, is ductile rather than brittle, tough and readily machined.
"Flocast"3D is an essentially ferritic grade, having high elasticity and resistance to impact, suitable for applications involving thermal and mechanical shock. It can be welded but cannot be readily flame or induction hardened.
"Flocast" Grade 3D Typical Mechanical Properties
| |
Imperial |
Metric |
| Tensile Strength |
27 tons/in.2 |
415 MPa |
| Hardness Range (Brinell) |
187 Max |
187 Max |
| Permanent Set Stress (0.5%) |
18 tons/in.2 |
277 MPa |
| Elongation |
12% |
12% |
| Impact Value |
4-6 ft. lb. |
0.56-0.84 kgm |
Similar National Standards
| American |
ASTM |
A.536 |
65-45-12 |
| British |
BS |
2789 |
SNG 27/12 |
| Australian |
AS |
1831 |
400-250-12 |
| German |
DIN |
1693 |
GGG 40. |
| Japanese |
JIS |
Fc |
D45 |
Technological Properties
| Machinability: |
Excellent. |
| Microfinish: |
Excellent. |
| Resistance to Rust & Acids: |
Very Good. |
| Damping Capacity: |
Fair. |
| Galvanising, Enamelling: |
Good. |
| Wear Resistance: |
Fair. |
| Shock Resistance: |
Excellent. |
| Fatigue: |
Excellent. |
| Hardenability: |
Not readily hardened. Can be hard-faced. |
| Structure: |
Homogeneous, extremely fine grain. Oil and pressure-tight. Free of blowholes, inclusions. |
| Surface: |
Free of sand. |
Typical Applications of "Flocast" 3D
Typical applications demanding resistance to corrosion and thermal and mechanical shock in marine, automotive, hydraulic, agricultural, railroad, machine tool and general manufacture. Pump bodies, glands, glass moulds, spur gears, worm gears, sprockets, heavy duty gears, impellors and rotors are a few of the many components made from FIocast 3D.
Ni Resist Iron
"Flocast" bar is produced in Ni Resist grades for applications demanding heat and corrosion resistance. Only two grades are presently made: a flake graphite grade designated NR1 and a ductile grade designated NR2D. Both grades are produced only to order.
Ni Resist irons offer resistance to frictional wear, corrosion, erosion, heat and oxidation, non-magnetic response, good machinability and high strength. Fields of application include chemical, food and pump and paper processing, petroleum refining, power plants, marine and miscellaneous liquids handling and internal combustion engine components. Our representatives will be pleased to advise you on the grade suited to your requirements.
Similar National Standards
| NR1 |
American Standard |
ASTM |
A436 Type 1. |
| NR2D |
American Standard |
ASTM |
A439 Type D2. |
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