 Comparative Strength Values of Pau Lope*Vs. Hardwood and Clear
Untreated Softwood
| |
Pau Lope* |
Phillipine Mahogany (Light Red) |
Fir |
Western
Red Cedar |
Calif.
Redwood Old/ Young |
Southern
Yellow Pine |
| Moisture
Content |
% |
12.3% |
12% |
12% |
12% |
12%/12% |
12% |
| Weight
per cu.ft. |
Ibs |
69.0 |
33 |
34 |
30 |
28
/ 26 |
35 |
| Specific
Gravity |
Green
/ Ovendry |
1.06 |
.49 |
.48 |
.44 |
.40
/ .35 |
.59 |
| Fiber
Stress at Prop. Limit |
Psi |
16,600 |
N/A |
7,400 |
7,700 |
6,900
/ N / A |
7,700 |
| Modules
of Rupture |
Psi |
25,360 |
11,100 |
12,400 |
6,800 |
10,000
/ 7,900 |
14,500 |
| Modules
of Elasticity |
1,000
Psi |
3,140 |
1,660 |
1,950 |
930 |
1,340/
1, 100 |
1,980 |
| Work
to Prop. Limit |
in-Lbs./
Cu in |
4.98 |
N/A |
N/A |
N/A |
N/A |
N/A |
| Work
to Max Load |
in-Lbs./
Cu in |
22.0 |
N/A |
9.9 |
4.1 |
5.2
/ N/A |
11.8 |
| Fiber
Stress at Proportional Limit |
Psi |
9,000 |
N/A |
5.540 |
5,890 |
4,560
/ N/A |
5,090 |
| Max
Crushing Strength |
Psi |
13,010 |
5,620 |
7,240 |
6,310 |
6,150
/ 5,220 |
8,470 |
| Modulus
of Elasticity (Parallel to Grain) |
1,000
Psi |
3,260 |
N/A |
N/A |
N/A |
N/A |
N/A |
| Hardness:
End side |
Lbs Lbs |
3,180 3,680 |
730 590 |
710 600 |
730 580 |
790/N/A 480/420 |
750 690 |
| Perpendicular
Stress at Prop. Limit Compression |
Psi |
2,300 |
N/A |
830 |
620 |
520
/ N/A |
960 |
| Tension
Perpen. to Grain |
Psi |
500 |
N/A |
340 |
360 |
250
/ N/A |
470 |
| Shear |
Psi |
2,060 |
1,090 |
1,130 |
1,130 |
940
/ 1,110 |
1,510 |
Surface Burning Characteristics as per
ASTM-E84 of Pau Lope*
Classification Codes for Pau Lope*
TEST TYPE
| Flame Spread (10 min)........0 |
Smoke Developed Value (10
min)......2 |
| Fuel Contribution (10
min)........0 |
Flame Spread (30 min)........5 |
CODE CLASS
NFPA........A
UBC Class........1
*registered Trademark |
