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CONTACT US
Head Office 
Dense Bar Sales Group
TEL:079-236-8484
FAX:079-239-8588
Tokyo Branch Office 
Dense Bar Sales Group
TEL:03-6436-0261
FAX:03-6436-0264

Nagoya Office

TEL:052-231-3262
FAX:052-231-2238

Hokuriku Office

TEL:076-260-5501
FAX:076-260-5505

Kitakyushu Office

TEL:093-551-7881
FAX:093-551-3790
 



CHARACTERISTICS
1.

Free from sand marks and graphite marks.

2.

Readily and good machinable due to its dense and even structure up to the deep center.

3.

Capable of being made long-sized and handled with automatic machines.

4.

Smooth casting surface and good precision.

5.

Low price fluctuation.

6.

The wide variety of shapes, materials and sizes as well as rich stock.


STANDARD MATERIALS

Material

Mark

Color

Mechanical properties

Structure

Applicable standards

N/mm² % HRB

Gray cast iron

EC   250~350 - 75~95

Eutectic graphite and ferrite

JIS-FC250
E2   180~280 - 75~95 Eutectic graphite and ferrite JIS-FC200

Ductile cast iron

D4   400~500 ≧12 65~92

Spheroidal graphite and ferrite

JIS-FCD400-15A
D5   500~600 ≧7 80~100

Spheroidal graphite and ferrite, pearite

JIS-FCD500-7A
D6   600~700 ≧2 93~105

Spheroidal graphite and pearite , ferrite

JIS-FCD600-3A
 

Austenitic ductile cast iron

ND2   400~450 ≧8 75~92

Spheroidal graphite and austenite

FCDA-NiCr20-2

Upon request, special material quality other than listed above can also be manufactured. Please contact us.


Material

Test material size

Tensile strength

Elongation

Hardness

Micro structure
Center

N/mm² % HRB
FC300
(Sand castings)
100φ 264.9 - 91
EC 100φ 348.3 - 89
E2 100φ 240.3 - 88 -
D4 100φ 444.4 19.7 83
D5 100φ 573.9 13.7 91
D6 100φ 641.9 4.2 97


Test pieces cut from quarter position of the real body.

Other properties (Hardness chart, Young’s modulus, Fatigue strength, High temperature strength, Low temperature property, Damping capacity, Hydraulic pressure test, Female screw tensile strength, Machinability,  Hardenability, etc.) is shown on the catalogue.


APPLICATIONS

Oil and air pressure equipment

Valves

Stack valve, Modular valve, Relief valve, Flow control valve, Solenoid valve, Sub plate, Manifold

Cylinders

Piston, Head cover, Rod cover, Cushion ring

Others

Pulley and Boss for blower, Roter, Impeller Liner Flange for compressor

Machine tools and general industrial machineries

Metal machine tools

Liner, Side Plate, Back Plate, Cylinder, Piston head, Pulley, Cylinder cover, Gear, Bearing, Safety pin, Bushing, Flange, Coupling, Manifold, Rack materials, Collet chuck, Scale base, Valve, Clutch, Centering cone, Rail, Chuck, Jig plate

Injection molding machines

Valve, Manifold, Cylinder, Mounting plate at fixed side, Mounting plate at moving side, ejector plate, Spacer block

Civil engineering and construction machines

Valve, Cylinder piston, Manifold

Printing Machines

Ink mixing roller, Ink rail, Guide, Gear

Spinning machines

Bearing case, Gear, Weight, Rail, Top roller, Guide tube, Bearing, Cross slide, Bearing holder, Slide base, Bushing, Cam of sewing machine

Agricultural machines Farmering

Piston head, Head cover, Pulley for tractor, Pulley and Bushing for combine

Others

Parts for Package of paper, Food processing, Wood-working machine

Automobiles, transportation equipment

Automobiles

Shock absorber, Valve guide, Mechanical seal, Collar, Bushing, Weight, Speed meter gear sleeve, Mechanical seal Spacer for cooler

Cranes and Ships

Manifold, Cylinder, Piston, Valve Guide, Engine valve stem bushing, Cylinder block

Cranes

Sheave, Collar, Bushing, Wheel

Others

Winch drum, Elevator hook, Weight, Conveyor roller

Electrical equipment and tools

Compressor roller for rotary air conditioner, Spider, Slider, Cross slide pin, Facsimile vacuum pump, Motor gear, Rotor for cooler, Disc brake of generator

Metal molds

For glass, for aluminium die casting, for plastics, for grinding wheel, for pen points, for pressure casting, for lens polishing, for analyzing pieces, for shell molding and cold box process.

Pump

Gear of gear-pump, Rotor of screw pump, Shaft seal, Rotor, Flange, Flow control, Check valve, York sleeve, Valve guide for chemical pump

General universal parts

Gear, Pulley, Sheave, Bearing, Shaft, Bushing, Coller, Cam, Coupling, Flange, Boss, Weight, Casing, Pin rail, Cases and covers, Seal, Rotor, Base, Ring, Roller, Nut, Plate, Plug, Block, Square, Jig and tools

Others

Precision instruments, Iron and steel work, Office machines, Internal combustion engine, etc.

Balance weight, Ram material, Oil seal, Thermocouple protecting tube, Feed roll, Drum, Burner inner gear, End plate, Piston pin, Lap material, Roll cap, Sample case, Guide roller, Continuous casting machine roller, Chair cylinder tube, Chiller, Feed roll, Automatic door valve, Brake, Manifold


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