MECHANICAL PROPERTIES

TEST METHOD

Units

Grade (M30)

Grade (M500)

Specific Gravity

ASTM D-4894

g/cm3

2.21±0.03

2.21±0.03

Tensile strength

ASTM D-4894

MPa

≥22

≥20

Elongation at break

ASTM D-4894

%

≥250

≥220

Bulk Density

ASTM D-4894

g/L

/

780±50

Hardness

NEEDLE

Shore D

63-58

63-58

Diametric Shrinkage

INTERNAL

%

1.5±0.5

1.5±0.5

Flow

INTERNAL

Sec/120g

/

≤5

Average Particle Size

ASTM D4894

μm

/

550±100

RECOMMENDED MOULDING PRESSURE:

350-400kg/cm2

MAX SINTERING TEMPERATURE:

370-375℃