Tru Weld - Weld Studs and Stud Welding Equipment
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Arc Stud Welding - Specifications

Headed Concrete Anchors
Concrete Anchors are designed for welding to flat surfaces, in the fillet of an angle, or to the heel of an angle. When ordering, please specify if studs will not be welded to a flat surface. All orders placed for weld studs include ferrules.

Length of concrete anchors are given before weld. Concrete Anchors with the diameter of 1/2" and below will be approximately 1/8" shorter after weld. 5/8" concrete anchors will be 3/16" shorter after weld (burn-off).

Concrete Anchors are made from low carbon steel (1010-1020) ASTM A29. Studs are also available in weldable stainless steel (except Type 303).

CA Studs Type A Type B
Tensile Strength 61,000 PSI 65,000 PSI
Tensile Strength 420 MPa 450 MPa
Yield Strength (.2% offset) 49,000 PSI 51,000 PSI
Yield Strength (.2% offset) 340 MPa 350 MPa
Elongation (% in 2 in.) 17% Min 20% Min
Reduction of Area 50% Min 50% Min


Shear Connectors (including Thru-Deck)
Shear Connectors are designed to effectively tie the concreete to the steel beams and to resist shear loadings between the concrete slab and steel beam in composite construction. All orders for shear connectors include ferrules.

Length of shear connectors are given before weld. When welded to base material, studs will be approximately 3/16" shorter after weld. When studs are welded Thru-Deck, studs will be approximately 3/8" shorter after weld.

Concrete Anchors are made from low carbon steel (1010-1020) ASTM A29. Studs are also available in weldable stainless steel (except Type 303).

SC/DSC Studs Type A Type B
Tensile Strength 61,000 PSI 65,000 PSI
Tensile Strength 420 MPa 450 MPa
Yield Strength (.2% offset) 49,000 PSI 51,000 PSI
Yield Strength (.2% offset) 340 MPa 350 MPa
Elongation (% in 2 in.) 17% Min 20% Min
Reduction of Area 50% Min 50% Min


Deformed Bar Anchors
Deformed Bar Anchors are designed for weld and bearing plates in concrete connections.

Length is listed before weld. Stud diameters 1/2" and below will be approx. 1/8 shorter after welding. 5/8" will be approx. 3/16" shorter after welding.

Deformed Bar Anchors are made with low carbon steel (ASTM A496).

DBA Studs Type C
Tensile Strength 80,000 PSI
Tensile Strength 552 MPa
Yield Strength (.5% offset) 70,000 PSI


  1. Type A studs are general purpose of any type and size used for purposes other than shear transfer in composite beam design and construction.
  2. Type B Studs are studs that are heated, bent or of other configuration in 1/2" (12.7mm), 5/8" (15.9mm), 3/4" (19mm), 7/8" (22.2mm), and 1" (25.4mm)diameter, that are used as an essential component in composite beam design and construction.
  3. Type C studs are cold-welded deformed steel bars manufactured in accordance with specification ASTM A496, having a nominal diameter equivalent to the diameter of a plain wire having the same weight per foot as the deformed wire. ASTM A496 specifies a maximum diameter of 0.628 in. (16mm) maximum. Any bar supplied above that diameter must have the same physical characteristics regarding deformations as required by ASTM A496.

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