6381 Windfern
Houston, TX 77040
Phone: 713-939-8903
Fax: 713-939-9013
Toll Free: 800-462-9353

CD & Arc Weld Stud Specifications

Weld stud specifications for CD and Arc stud fasteners are provided for your convenience.

CD Engineering Specifications

Welding Capabilities of CD Stud Fasteners


		Stud Material

	Base Material	Mild Steel 1008,1010	Stainless Steel 304,305	Aluminum 5356,6061	Brass 70-30, 65-35

	Mild steel: 1006 through 1030	Excellent	Excellent	——	Excellent

	Medium carbon steel: 1030 through 1050	Good*	Good*	——	Good*

	Galvanized sheet duct: or decking	Excellent	Excellent	——	——

	Structural steel	Excellent	Excellent	——	Excellent

	Stainless steel: 405, 410, 430 and 300 Series, except 303	Excellent	Excellent	——	Excellent

	Lead-free brass; Electrolytic copper; Lead-free rolled copper	Excellent	Excellent	——	Excellent

+	Most aluminum alloys of the 1000, 3000, 5000 and 6000 series	——	——	Excellent	——

	Die-cast zinc alloys	Good*	Good*	Excellent	Good*

*Good: Generally full strength results, depending upon the combination of stud size and base metal.
+Other Materials, such as 7000 Series aluminum, titanium alloys, Inconel, etc. can be welded under specified conditions.

Standard CD Stud Fastener Load Strengths


Stud Material	Stud Size	Maximum Fastening Torque (Inch Lbs.)*	Ultimate Tensile Load (Lbs.)	Maximum Shear Load (Lbs.)

Low-carbon, copper-flashed steel	6-32 8-32 10-24 1/4-20 5/16-18 3/8-16	6 12 14 43 72 106	500 765 960 1750 2900 4300	375 575 720 1300 2200 3250

Stainless steel: 304	6-32 8-32 10-24 1/4-20 5/16-18 3/8-16	10 20 23 75 126 186	790 1260 1530 2880 3750 4850	590 940 1150 2160 2800 3600

Aluminum alloy: 5000 series	6-32 8-32 10-24 1/4-20 5/16-18	3.5 7.5 10 40 70	375 585 735 1360 2300	235 365 460 850 1400

Brass: 70-30 65-35	6-32 8-32 10-24 1/4-20 5/16-18 3/8-16	8 16 18.5 61 102 150	600 860 1040 1950 3280 4800	390 560 680 1275 2140 3160

*These values should develop fastener tension to slightly less than yield point and should be used
only as a guide.
*The basic specifications shown above cover typical mechanical property values of Sunbelt studs.

ARC Engineering Specifications

These basic specifications are typical values of mechanical properties of Sunbelt studs. Also shown are the chemical properties of low carbon steel. For actual material analysis and physical properties Sunbelt will provide, upon request, a detailed material certification.

MATERIALS

Low Carbon Steel

Chemical Properties

C – .23% Max. P – .040% Max.

Mn. – .90% Max. S – .050% Max.

Mechanical Properties

Tensile Strength: 60,000 PSI Min.

Yield Strength: 50,000 PSI Min.

Elongation in 2 inches: 20% Min.

Mechanical Properties (Annealed)

Tensile strength: 50,000 PSI

Yield Strength: 35,000 PSI

Elongation in 2 inches: 25%

High Strength Steel

Mechanical Properties

Tensile Strength: 120,000 PSI Min.

Stainless Steel
Type 302/304/305/316

Mechanical Properties

Tensile Strength: 85,000 PSI Min.

Yield Strength: 40,000 PSI Min.

Elongation in 2 inches: 45%

Mechanical Properties (Annealed)

Tensile Strength: 80,000

Yield Strength: 30,000 PSI Min.

Elongation in 2 inches: 50%

Aluminum Alloy (5000 series)

Mechanical Properties

Tensile Strength: 42,000 PSI Min.

Yield Strength: 30,000 PSI Min.

LCS = Low Carbon Steel HSS = High Strength Steel 304SS = 304 Stainless Steel
5000SA = 5000 Series Aluminum

Stud Size

Suggested Fastening Torque* (inch lbs.)

Ultimate Tensile
Strength (lbs.)

Ultimate Shear
Load (lbs.)

8-32

10-24

1/4-20

5/16-18

3/8-16

7/16-14

1/2-13

5/8-11

3/4-10

7/8-9

1"-8

LCS	HSS	304SS	5000SA

17.8	—	19.8	—
20.8	—	22.8	10
65	130	75.2	40
129	260	132	70
212	400	236	81
338	—	376	140
465	900	517	—
1000	—	1110	—
1259	—	1530	—
1919	—	2328	—
2832	—	3440	—

LCS	HSS	304SS	5000SA

1010	—	1260	—
1230	—	1530	770
2300	3800	2880	1360
3740	6200	4680	2300
5550	9300	6920	3250
7630	—	9600	4400
10200	16900	12800	5950
16300	—	20200	—
24000	—	30000	—
33300		41600	—
43600	—	54500	—

LCS	HSS	304SS	5000SA

750	—	940	—
920	—	1150	460
1720	2400	2160	850
2800	4000	3500	1400
4160	6000	5190	2100
5710	—	7200	2400
7650	11000	9600	3000
12200	—	15150	—
18000	—	22500	—
24900	—	31200	—
32700	—	40900	—

MANUFACTURING DATA

Threads. Standard threads are UNC-2A for male threads, UNC-2B for female. Some sizes are also stocked in UNF-2A and 2B sizes. Other thread classifications are available on special order. Whenever possible, all studs are thread rolled.

Plating. Zinc plating is available according to ASTM-A 164-55 RS. Other plating materials available on request. Plating is removed from the weld base to prevent contamination on all studs except 10 gauge pins.

Annealing. Sunbelt arc welding studs can be annealed to a maximum of 75 Rockwell B for low carbon steel; 90 Rockwell B for stainless steel.

Flux. Except for some studs less than 5/16" diameter, all studs are solid fluxed at the center of the weld base.

Ferrules. All orders include ferrules when required. Ferrules are supplied with the studs and are not sold individually.

Disclaimer
The provided performance data is intended as guideline specifications & strengths only and is based on assumptions of general and reasonable use. Performance suitability for any specific application should be determined by the user.