Aerospace Spot Weld Shear Strength: titanium alloy
titan ftu above130 t0032 to titan ftu below100 t0032
Design-allowable shear load per spot (lbs) for resistance spot welds per MIL-HDBK-5J Section 8.2.2.3 and MIL-W-6858. Indexed by material family (aluminum alloy, steel/nickel/cobalt alloy, magnesium alloy, titanium alloy), parent metal Ftu range (ksi), and sheet thickness (in). Tensile allowable is 25% of shear strength. Covers thicknesses 0.020–0.160 in. No filler metal — allowable is empirical load-per-spot based on sheet thickness and parent metal ultimate tensile strength.
| material family | record id | design shear strength lbs (lbf) | material ftu range ksi | sheet thickness in (in) | standard | tensile allowable lbs (lbf) | tensile allowable note | weld spec |
|---|---|---|---|---|---|---|---|---|
| titanium alloy | titan ftu above130 t0032 | 460 | above 130 | 0.032 | MIL-HDBK-5J Section 8.2.2.3 | 115 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu above130 t0040 | 620 | above 130 | 0.04 | MIL-HDBK-5J Section 8.2.2.3 | 155 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu above130 t0050 | 840 | above 130 | 0.05 | MIL-HDBK-5J Section 8.2.2.3 | 210 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu above130 t0063 | 1,120 | above 130 | 0.063 | MIL-HDBK-5J Section 8.2.2.3 | 280 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu above130 t0080 | 1,480 | above 130 | 0.08 | MIL-HDBK-5J Section 8.2.2.3 | 370 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu above130 t0100 | 1,920 | above 130 | 0.1 | MIL-HDBK-5J Section 8.2.2.3 | 480 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu above130 t0125 | 2,480 | above 130 | 0.125 | MIL-HDBK-5J Section 8.2.2.3 | 620 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu above130 t0160 | 3,200 | above 130 | 0.16 | MIL-HDBK-5J Section 8.2.2.3 | 800 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu below100 t0025 | 212 | below 100 | 0.025 | MIL-HDBK-5J Section 8.2.2.3 | 53 | 25% of shear strength | MIL-W-6858 |
| titanium alloy | titan ftu below100 t0032 | 288 | below 100 | 0.032 | MIL-HDBK-5J Section 8.2.2.3 | 72 | 25% of shear strength | MIL-W-6858 |
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