Raw material: SWRCH18A
Original: Hebei, China
Delivery time: Around 15~20 days after deposit received for MOQ(10,000sets)
Black studs are one of shear studs with the black coating, which are boring about 2~3 hours after produced by cold for the ing machine, the raw material and producing process are same as normal shear studs.
Black studs are also used in composite steel construction to tie the concrete to steel members and resist shear forces between the concrete slab and steel members, such as plenty of steel construction, steel building, steel beam, steel bridges, etc.
There are two welding ways to connect shear connector/stud and steel plate, one is welding directly, which need the normal ceramic ferrule with multi-teeth(about 18 teeth or 21 teeth), the other is welding through metal deck, for this option, it is recommended to use special ceramic ferrule thru-deck type(8 teeth).
Why Sino stone’s shear connector/shear stud are popular by customers?
- We choose the quality mild carbon steel(SWRCH18A) from Xingtai Steel Factory.
- We do phosphorization pretreatment for the raw material using drawing machine.
- We purchase the multi-station cold forging machine from the biggest factory in Zhejiang Province to ensure the better mechanical property of shear connector to match the standard(BS EN ISO13918:2008, AWS D1.1, etc.), or as per customer’s special requirement.
- We use the automatic riveting machine to install aluminum ball on the end.
- After rust prevention, Sino stone’s shear connector can suitable for long time ship on the sea.
- Short delivery time because of our reasonable production flow management
Choosing Quality Raw Material
Sino Stone choose the famous Xingtai Steel factory to purchase the optimal raw materials with good mechanical properties and weld performance, which can ensure the shear connectors’ mechanical properties to match client’s requirement.in different steel constructions.
Different type shear studs can be provided.
|Mechanical Properties between different standards|
|Standard name||Tensile strength(ReH)||Yield point(Rm)||Elongation(A5)|
|BS EN ISO13918:2008||≥450Mpa||≥350Mpa||≥15%|
|ASW D1.1:2010 Type B||≥450Mpa||≥350Mpa||≥15% in 5x dia.|
≥20% in 2 in.
|JIS B 1198:2011||400~550Mpa||≥235Mpa||≥20% (in 2ch.)|
|Sino Stone's shear connector can be produced as per your requirement.|
ISO13918 standard dimension
|Dimension of shear connectors (SD)|
|a Excess diameter or production impressions in the shaft area below the head are permitted up to 0.5mm, provided they do not affect proper plunge.|
b Tolerance on l2 is +1/-2 mm.
c For special conditions, e.g. through-deck stud welding, the dimensions and the tolerances are not applicable.
d May be reduced to 29mm for shear application.
e Use of the optional dimension depends on national regulations.
Packages for shear studs
There are two types packaging for shear connectors/shear studs: one is barrel&pallet, another is carton&pallet.
Barrel&Pallet: About 200kgs/barrel, 6barrels/pallet
Carton&Pallet: About 25kgs/carton, 48cartons/pallet
We can also package as per your special requirement.