ARC Studs
Drawn-arc stud welding is an extremely efficient method of attaching fasteners primarily to mild steel and stainless steel by utilizing a constant-current DC power supply, typically a 3-phase transformer-rectifier, equipped with integral controls to operate a special drawn-arc stud welding gun.
ARC Stud Welding Process
Diagram - Stud Welding with Drawn-ARC
| Stud Thread Diameter | META sq. in. | Yield Load (lb) @ 50000 psi | Ultimate Tensile Load (LB) @ 55000 | Yield Torque* @ 50000 psi | Ultimate Torque* @ 55000 psi |
|---|---|---|---|---|---|
| 10-24 UNC | .017 | 870 | 957 | 33 in. LB | 36 in. LB |
| 10-32 UNF | .020 | 1,000 | 1,105 | 37 in. LB | 41 in. LB |
| 1/4-20 UNC | .032 | 1,590 | 1,743 | 6 ft LB | 7 ft LB |
| 1/4-28 UNF | .036 | 1,810 | 1,990 | 7 ft LB | 8 ft LB |
| 5/16-18 UNC | 0.052 | 2,620 | 2,871 | 13 ft LB | 15 ft LB |
| 5/16-24 UNF | .058 | 2,895 | 3,184 | 15 ft LB | 17 ft LB |
| 3/8-16 UNC | .078 | 3,875 | 4,250 | 24 ft LB | 27 ft LB |
| 3/8-24 UNF | .088 | 4,380 | 4,818 | 27 ft LB | 30 ft LB |
| 7/16-14 UNC | .106 | 5,315 | 5,830 | 38 ft LB | 42 ft LB |
| 7/16-20 UNF | .118 | 5,900 | 6,490 | 43 ft LB | 43 ft LB |
| 1/2-13 UNC | .142 | 7,095 | 7,810 | 59 ft LB | 65 ft LB |
| 1/2-20 UNF | .160 | 8,000 | 8,800 | 66 ft LB | 73 ft LB |
| 5/8-11 UNC | .226 | 11,300 | 12,430 | 118 ft LB | 130 ft LB |
| 5/8-18 UNF | .255 | 12,750 | 14,025 | 133 ft LB | 146 ft LB |
| 3/4-10 UNC | .334 | 16,700 | 18,370 | 209 ft LB | 230 ft LB |
| 3/4-16 UNF | .372 | 18,600 | 20,460 | 232 ft LB | 256 ft LB |
| 7/8-9 UNC | .462 | 23,100 | 25,355 | 337 ft LB | 370 ft LB |
| 7/8-14 UNF | .509 | 23,450 | 27,995 | 371 ft LB | 408 ft LB |
| 1-8 UNC | .606 | 30,300 | 33,275 | 505 ft LB | 555 ft LB |
| 1-14 UNF | .678 | 33,900 | 37,290 | 565 ft LB | 621 ft LB |
| Stud Base Diameter | Steel without Backup | Manufacture's Standard Gage | Aluminum without Backup | Aluminum with Backup* |
|---|---|---|---|---|
| 3/16 in. 4.8 mm | 0.036 in. 0.91 mm | 20 | 0.125 in. 3.2 mm | 0.125 in. 3.2 mm |
| 1/4 in. 6.4 mm | 0.048 in. 1.21 mm | 18 | 0.125 in. 3.2 mm | 0.125 in. 3.2 mm |
| 5/16 in. 7.9 mm | 0.060 in. 1.52 mm | 16 | 0.180 in.< 4.7 mm | 0.125 in. 3.2 mm |
| 3/8 in. 9.5 mm | 0.075 in. 1.90 mm | 14 | 0.180 in. 4.7 mm | 0.180 in. 4.7 mm |
| 7/16 in. 11.1 mm | 0.090 in. 2.28 mm | 13 | 0.250 in. 6.4 mm | 0.180 in. 4.7 mm |
| 1/2 in. 12.7 mm | 0.120 in. 3.04 mm | 11 | 0.250 in. 6.4 mm | 0.250 in. 6.4 mm |
| 5/8 in. 15.9 mm | 0.145 in. 3.80 mm |  Arc Studs | ||
| 3/4 in. 19.1 mm | 0.185 in. 4.70 mm | |||
| 7/8 in. 22.2 mm | 0.250 in. 6.40 mm | |||
| 1 in. 25.4 mm | 0.375 in. 9.50 mm | |||
* A metal backup to prevent melt-through of the base metal.
Products
We Supply...
- 1/4" -- 1" Diameter
- Threaded + Non-threaded
- Low Carbon Steel
- Stainless Steel
- Plated Upon Request
- Deformed Bar Anchors
- Shear Connector Studs