Stud welding used in construction of bridges with CE

shear connector/Weld Studs /shear stud Material: Low carbon alloy steel SWRCH15A ISO13918, AWS D1.1,GB 10433,CE M16~M25 CE

Material: Low carbon alloy steel SWRCH15A

shear stud, weld stud,shear connector Mchanical properties ;

according to GB/T10433 ,ANSI/AWSD1.1-92,JISB1198- 82,ISO13918,ASTM A108

 

shear connector stud dimensions (mm)
D	tolerance	10	13	16	19	22	25
	min	9.64	12.57	15.57	18.48	21.48	24.48
	max	10	13	16	19	22	25
DK	min	17.65	21.58	28.58	31.5	34.5	39.5
	max	18.35	22.42	29.42	32.5	35.5	40.5
K	min	6.55	7.55	7.55	9.55	9.55	9.55
	max	7.45	8.45	8.45	10.45	10.45	12.55
WA (Reference)		4	5	5	6	6	6
L1		40-180	40-200	50-250	60-300	80-300	80-300
Chemical composition of material (%)
Material		C	Si	Mn	P	S	V
SWRCH 15A		0.13-0.18	<0.1	0.3-0.6	<0.035	<0.035	<0.1
Mechanical Properties
ISO 13918	Tensile strengh		Yield Point		Elongation	Shrinkage
Standard	>450		>350		>15%	-
Diameter of stud		10	13	16	19	22	25
Tensile Load (N)		32970	55860	84420	119280	159600	206220
Bend test with hammer or with pipe, making the welding stud bent 30 degree, there are no visible cracks on the welding area and the heat-affected zone in the weld stud and shear connector.

  Arc studs range from a #8 to 1 1/4" diameter. The lengths are variable from 3/8" to 60" (for deformed bars). Arc studs are typically loaded with an aluminum flux ball on the weld end which aids in the welding process.

roject Highlights

PROJECT HIGHLIGHTS

Sanmen Nuclear Power Engineering

Background:

Stud welding is a process for joining a metal stud to a work piece. Stud welding guns hold the stud in place above the material to which it is to be joined. Electrical energy is used to heat the interface of the stud and the parent metal. The stud is then plunged into the parent metal to join them. This process uses a ceramic arc shield called a ferrule. The ferrule surrounds the stud to keep the molten metal contained and shield the arc.

Since arc stud welding time cycles are so short, heat input to the base metal is very small compared to the conventional arc welding. Because there is such a low heat input, the heat-affected zones (HAZ) are very small and minimal distortion occurs in the base metal where the  stud is located. 

Stud welding used in construction of bridges with CE