As a result, we deliver factory-direct pricing, consistent weld quality, and fast delivery. Similarly, this applies to all your steel-concrete composite beam and bridge deck projects.
In addition, we produce these welded shear studs to comply with ISO 13918 (Type SD) and AWS D1.1 (Type B). Meanwhile, we use S235J2+C450 and ASTM A108 Grades 1010–1020 as standard base materials. Therefore, structural engineers and fabricators rely on them for transferring shear between steel beams and concrete slabs.
Technical Specifications of Shear Stud Connectors
To begin with, we manufacture our shear stud connectors in a full range of diameters and lengths. Specifically, the table below summarizes the ISO 13918 Type SD standard range.
| Stud Diameter (d1) | Head Diameter (d5) | Head Height (h3) | Length Range (L1) | Ceramic Ferrule | Burn-off |
|---|---|---|---|---|---|
| 10 mm | 19 mm | 7 mm | 40 – 105 mm | UF10 | 3 mm |
| 13 mm | 25 mm | 8 mm | 40 – 160 mm | UF13 | 3 mm |
| 16 mm | 32 mm | 8 mm | 40 – 200 mm | UF16 | 4 mm |
| 19 mm | 32 mm | 10 mm | 40 – 250 mm | UF19 | 5 mm |
| 22 mm | 35 mm | 10 mm | 60 – 250 mm | UF22 | 5 mm |
| 25 mm | 41 mm | 12 mm | 60 – 250 mm | UF25 | 6 mm |
Material & Mechanical Properties for Welded Shear Studs
- To begin with, we use S235J2+C450 structural steel as the standard material for our shear connector studs. This grade offers a minimum yield strength of 350 N/mm² and a minimum tensile strength of 450 N/mm².
- Moreover, we also supply studs made from ASTM A108 Grades 1010 through 1020 cold-finished carbon steel. This is the standard material specified for shear connector studs in U.S. bridge and building projects.
- Additionally, our studs meet a minimum elongation of 15% and comply with the mechanical property requirements of both ISO 13918 and AWS D1.1.
- Furthermore, AWS D1.1 Type B studs must achieve a minimum tensile strength of 65,000 psi (450 MPa). Our S235J2+C450 and ASTM A108 studs fully meet this requirement.
- For special orders, we supply stainless steel (1.4301) shear studs for aggressive or highly corrosive environments.
- Finally, we offer OEM & ODM — we customize stud diameter, length, head dimensions, material, and packaging according to your specifications.
ISO 13918 & AWS D1.1 — Understanding the Standards for Shear Stud Connectors
In fact, two key standards govern shear stud connectors in global markets. Furthermore, understanding the difference helps you select the right stud for your project.
To begin with, ISO 13918 is the international standard for welding studs and ceramic ferrules. It defines Type SD shear connectors with metric dimensions from M10 to M25. The standard covers material, dimensions, mechanical properties, and the ceramic ferrule required for drawn arc stud welding.
Moreover, AWS D1.1 is the American Welding Society Structural Welding Code—Steel. It defines Type B studs as headed studs used as an essential component in composite beam design and concrete anchorage. Type B studs are available in diameters from 3/8″ to 1″ and must meet specific tensile strength and bend test requirements.
Key Differences — ISO 13918 vs. AWS D1.1 for Shear Studs
| Parameter | ISO 13918 (Type SD) | AWS D1.1 (Type B) |
|---|---|---|
| Diameter Range | M10 – M25 (metric) | 3/8″ – 1″ (inch) |
| Standard Material | S235J2+C450 | ASTM A108 Gr. 1010–1020 |
| Min. Tensile Strength | 450 MPa | 65,000 psi (450 MPa) |
| Min. Yield Strength | 350 MPa | — |
| Ceramic Ferrule | Type UF | Required per D1.1 |
| Welding Process | Drawn arc stud welding | Drawn arc stud welding |
Drawn Arc Stud Welding Process for Shear Stud Connectors
In addition, the installation of shear stud connectors uses the drawn arc stud welding process. Furthermore, this process produces a weld with full fusion between the stud base and the steel beam.
To begin with, the stud is placed in a stud welding gun with a ceramic ferrule around its base. Meanwhile, the ferrule confines the arc and shields the molten weld pool from air. Then, the gun lifts the stud, strikes an arc, and melts both the stud end and the base metal. Finally, the gun plunges the stud into the molten pool, completing the weld in milliseconds.
Therefore, the drawn arc process produces welds that are stronger than the base metal or stud material alone. Consequently, engineers do not need to separately design the weld strength. Moreover, the process delivers consistent quality across many welds and can be performed in down-hand, horizontal, and overhead positions.
Ceramic Ferrule Types for Shear Stud Welding
- First, we supply standard UF type ceramic ferrules with 18 teeth for welding directly to bare steel.
- Second, we supply UFB through-deck type ferrules with 8 teeth for welding through steel decking.
- Third, ferrules must be kept dry and protected from moisture. Alternatively, you can oven-dry them at 250°F for two hours before use.
- Finally, per AWS D1.1, the ceramic ferrule must be broken and removed after welding to allow visual inspection of the weld.
About Our Factory — Direct Manufacturer of Shear Stud Connectors
In fact, Tarco Industry operates a modern manufacturing facility. Specifically, we dedicate it to the production of shear stud connectors and welded stud anchors.
Furthermore, we complete every step in our own factory. This includes wire drawing, cold forging, head forming, thread rolling, and aluminum ball installation. Consequently, we do not outsource production. We do not act as a middleman.
In addition, we equip our factory with advanced multi-station cold forging machines and automated welding lines. As a result, we produce ISO 13918 and AWS D1.1 compliant shear studs with consistent head geometry and reliable weld quality.
Therefore, whether you need S235J2+C450 or ASTM A108 studs, Tarco Industry can produce them directly for you.
Factory Direct Advantages
- First, we are a Manufacturer, Not a Trader. You buy directly from Tarco Industry production lines, eliminating middleman markups.
- Second, we handle In-House Production. We produce studs, ferrules, and assemblies all under one roof for full quality control.
- Third, we welcome OEM & ODM. We customize stud dimensions, materials, ceramic ferrules, and packaging.
- Fourth, we maintain Bulk Production Capacity — stable output for large composite construction and bridge projects.
- Finally, we provide Factory Price — competitive direct pricing for steel fabricators and EPC contractors.
Why Choose Our Shear Stud Connectors?
- For example, our studs offer Dual Standard Compliance. They meet both ISO 13918 (Type SD) and AWS D1.1 (Type B) requirements.
- In addition, they provide Reliable Shear Transfer. They tie the concrete slab to the steel beam and resist shear loading in composite construction.
- Moreover, they feature Full Fusion Welding. The drawn arc process produces welds stronger than the base metal alone.
- Furthermore, they ensure Consistent Mechanical Properties. S235J2+C450 and ASTM A108 Grades 1010–1020 deliver predictable strength and ductility.
- As a result of their Precision Head Forming, the stud heads provide reliable mechanical anchorage in concrete.
- Finally, we provide Direct Factory Support. Tarco Industry provides technical guidance, samples, and custom production.
How to Install Shear Stud Connectors
- First, prepare the steel surface. Clean the surface to remove rust, scale, oil, and moisture for proper electrical contact.
- Then, load the stud and ferrule. Place the stud in the welding gun and fit the ceramic ferrule around the stud base.
- Next, position the gun. Press the gun perpendicular to the steel beam surface.
- After that, activate the weld. The gun lifts the stud, strikes an arc, and plunges the stud into the molten pool.
- Finally, inspect the weld. Break off the ceramic ferrule and check for 360° flash formation. Perform bend tests per AWS D1.1 requirements.
Applications & Industries for Shear Stud Connectors
- For instance, in composite beam construction, contractors use our studs to connect concrete slabs to steel beams in high-rise buildings.
- Also, in steel bridge decks, they transfer shear between the concrete deck and steel girders.
- In addition, for metal decking, through-deck studs weld through the deck sheet to the steel beam below.
- Furthermore, in industrial buildings, they secure concrete floors to steel frameworks in warehouses and factories.
- Lastly, in bridges and infrastructure, they provide durable shear connections for long-span structures.
Quality Assurance & Certifications
Furthermore, Tarco Industry manufactures our shear stud connectors under strict quality control. Specifically, they comply with ISO 13918, AWS D1.1, and ASTM A108.
As a result, we perform dimensional inspection, tensile testing, bend testing, and material verification. Moreover, we test every production batch before shipment.
- Additionally, we offer certifications including ISO 9001, CE, and SGS.
- Similarly, our production capacity reaches 500,000 pcs per month.
- Also, we set the MOQ at 10,000 pcs (negotiable for sample orders).
- In terms of packaging, we offer cartons on plywood pallets with custom marking.
- Finally, we deliver within 15–20 business days after order confirmation.
Request a Quote for Shear Stud Connectors
In conclusion, we are Tarco Industry. We are a direct manufacturer of shear stud connectors and welded shear studs.
Therefore, because we produce in our own factory, we offer competitive factory-direct pricing. In other words, you deal with no middleman and no trading company markup.
📩 Contact Tarco Industry now for a free sample or bulk quotation. Additionally, our engineering team can assist you in selecting the right stud diameter, length, material, and ceramic ferrule for your specific composite construction project.
Tarco Industry — We Produce, We Manufacture, We Supply Directly.
