Material Information

Aluminum Connectors

Material:

• Welded: 356-T6
• Bolted: 356-T6
• Compression: 1100 Grade (Ec), 1060-O

Alloy Composition:

• 356-T6: Si 6.5-7.5 Fe .50 Cu .35 Mg .25-.40 Mn .35 Zn .35 Ti .25 Bal. Alu.
• 1100 (Ec): Si .15 Fe .6-.8 Cu .10 Zn .05 Alu. 99.0
• 1060-O: Si .25 Fe .35 Cu .05 Mg .03 Mn. 03 Ti .03 V .05 Zn .05 Al 99.6

Hardware:

• Bolts: 2024-T4 ALLOY, COATED WITH NO. 205 ALUMILITE AND LUBRICATED WITH NO-OX-ID.
• Nuts: 6061-T6 ALLOY
• Lock Washers: 7075-T6 ALLOY

Nominal Torque Values For Lubricated Aluminum Bolts:

• 3/8" = 15 Foot Pounds
• 1/2" = 25 Foot Pounds
• 5/8" = 40 Foot Pounds

Bronze Connectors

Material:

• Bolted: 833 (Contact Metal)
• Compression: 110 Copper

Alloy Composition:

• 833: Cu 93.0 Sn 1.5 Pb 1.5 Zn 4.0

Hardware:

• Bolts: SILICON BRONZE (Not Lubricated)
• Nuts & Lock Washers: SILICON BRONZE

Nominal Torque Values For Silicon Bronze Bolts:

• 3/8" = 20 Foot Pounds
• 1/2" = 40 Foot Pounds
• 5/8" = 55 Foot Pounds