Materials

All LATROBE FOUNDRY products are cast in our plant from alloy 356-F except those listed below.

ITEMS FURNISHED FROM 6061-T6:

Bushings Bell Reducers Plugs Squarehead Plugs Countersunk Locknuts Full & Half Couplings Nipples
1/4 x 1/8 1/4 x 1/8 1/8 3/8 1/4 All All
3/8 x 1/8 3/8 x 1/8 1/4 1/2 3/8 . .
3/8 x 1/4 3/8 x 1/4 3/8 3/4 . . .
1/2 x 1/8 1/2 x 1/4 1/2 . . . .
1/2 x 1/4 1/2 x 3/8 3/4 . . . .
1/2 x 3/8 . 1 . . . .
3/4 x 1/4 . . . . . .
3/4 x 3/8 . . . . . .
3/4 x 1/2 CAPS          
1 x 1/4 1/8 . . . . .
1 x 3/8 . . . . . .
1 x 1/2 . . . . . .

The fittings have a general conformance with dimensional standard MIL-DTL-52618-E; the flanges and flanged fittings with dimensional standard ANSI B16.1. Fittings are randomly tested at 120 pounds of air pressure under water, for a normal surface condition rating of 150 pounds of pressure. Extra-heavy couplings cannot be tested or certified for pressure rating. Individual fittings are not marked with alloy or pressure data. Fittings are not anodized.

TYPICAL ANALYSIS
. ALLOY 356-F ALLOY 6061-T6 ALLOY 6063-T5
Magnesium 0.25-0.40% 0.80-1.20% 0.45-0.90%
Silicon 6.50-7.50% 0.40-0.80% 0.20-0.60%
Copper 0.10% 0.15-0.40% 0.10%
Manganese 0.05% 0.15% 0.10%
Iron 0.13-0.30% 0.70% 0.35%
Zinc 0.05% 0.25% 0.10%
Titanium 0.20% 0.15% 0.10%
Chromium 0.15-0.35% 0.10%
Aluminum Balance Balance Balance
PROPERTIES
. ALLOY 356-F ALLOY 6061-T6 ALLOY 6063-T5
Tensile Strength 24,000 PSI 35,000 PSI (Extruded)
42,000 PSI (Drawn)
22,000 PSI
Yield Strength 18,000 PSI 26,000 PSI (Extruded)
35,000 PSI (Drawn)
16,000 PSI
Elongation 6% 10% (Extruded)
10-14% (Drawn)
8%
Weight 0.097 lbs. per cu. in. 0.098 lbs. per cu. in. 0.0973 lbs. per cu. in.
Specific Gravity 2.68 2.70 2.70-2.80
Electrical Conductivity
(% of IACS)
39 40 55
Thermal conductivity
(25° CGS)
.36 .41 .50
Melting Range 1035-1135° F 1080-1200° F 1140-1200° F