Inspection Items(Unit)

Technical Requirements

Value of Test

Water Content(%)

≤2

0.4

Rockweel Hardness(HRR)

≥58

106

Thickness Swelling Rate After Water A bsorption(%)

≤1

0.2

Static Bending Strength(Mpa)

≥20

45.4

Bending Elastic Modulus(Mpa)

≥1800

3475

Abrasion Resistant(g/100r)

≤0.08

0.08

Hammer falling impact in low temperature,broken pcs

≤1

1

Length change rate of repeating high and low temperature(%)

±0.2

-0.2

Screw holding capability(N)

≥800

3295

Density(kg/m3)

1.1

1.34