| 구분 |
공 식(Mathmetics) |
비중 (Specific gravity) |
|
Sheet
|
Thickness(mm) x Width(mm) x 1,000(mm) x Specific gravity x 1/1,000,000
|
동
Copper |
8.9 |
Square Pillar
|
O.S. distance(mm) x 1,000(mm) x Specific
gravity x 1/1,000,000 |
Hexangon Pillar
|
2/√ 3×(O.S. distance)2×1,000(㎜)×Specific gravity ×1/1,000,000 |
황동
Brass |
8.5 |
Rods
|
(Radious )2(㎜)×π×1,000(㎜)×Specific gravity ×1/1,000,000 |
PIpe
|
(Outdia.-Thickness)(㎜)×Thickness (㎜)×π×1,000(㎜)×Specific gravity ×1/1,000,000 |
AL |
2.7 |
|
|
