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GRANULAR POWDERS

GENERAL CHARACTERISTICS

Standards

Units

H51A

H71

H5PS  (Presinted)

H

I

F

L

O

N

Powder

Appearance

-

-

Irregular Particles

Irregular Particles

Irregular Particles

Bulk Density

ASTM-D 1457/87

g/litre

600 - 800

325 - 525

750 - 850

Compression Ratio

-

-

2.5 - 3.0

4 - 5

-

Particle Size

ASTM-D 1457/87 Micron

~ 400

~ 50

~ 400

Pourability

ASTM-D 1895

s

30-50

NF

10  20

Molding Pressure

-

Kg/cm2

250-350

150-250

-

SINTERED PARTS

Specific gravity

ASTM-D 1457/87

-

2.14-2.18

2.14-2.18

2.14-2.18

Shrinkage

ASTM-D 1457/87

%

-3.5 to -4.5

-3.5 to -4.5

-

Tensile strength

ASTM-D 1457/87

Kg/cm2

250 - 310

300 - 350

180 - 250

Elongation

ASTM-D 1457/87

%

280 - 380

350 - 450

250 - 350

Thermal stability

ASTM-D 1457/87

-

<10

<10

-

Dielectric strength

ASTM-D 1457/87   0.1 mm thick Tape

V/mil

~ 800

~ 2200

-

Minimum Packing Size

-

kg

40

25

40

 

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