To calculate weld inches for pipe, first determine the total length of the welds required for the project. Measure the circumference of the pipe (using the formula π times the diameter) and multiply it by the number of joints or welds. For multiple welds, sum the lengths of all individual welds to get the total weld inches. Finally, if applicable, factor in the number of passes required for each weld to obtain the overall weld inches.
One common method of testing welds is by X-ray.
The required size for a seal weld per AISC is eighteen foot length. AISC also specifies minimum weld size based on the thicknesses of the members joined.
I believe that the most effective and common way to inspect a friction weld is by ultrasound.
To calculate the number of welding rods needed for a fillet weld, first determine the weld size and length required. Use the formula for the volume of the weld, which is the weld size (throat thickness) multiplied by the length of the weld and the number of passes needed. Then, convert this volume into weight by considering the density of the welding rod material. Finally, divide the total weight of the weld metal by the weight of a single welding rod to find the number of rods required.
TKY weld joints are tubular joints used for welding. They are expressly used for when fabrication of a structure is necessary.
Socket weld joints are an easy and fast method of weld joints. Socket welding is preferred mainly on low pressure joints and small bore joints.
Weld oxidation weakens metal joints by creating a brittle and porous layer that reduces the strength and durability of the weld. This can lead to cracks, leaks, and ultimately, structural failure.
A common rule of thumb for fillet weld lengths is to aim for a minimum length of 3 to 4 times the thickness of the thinner base material being welded. Additionally, the total length of the weld should typically not exceed 10 times the thickness of the thinner plate to maintain effective load distribution. These guidelines help ensure adequate strength and performance of the weld.
This is used differently in different countries. But generally, if a welder is contracted to do say 100 weld joints, of a 1" pipe, then the total work involved is 100" dia welding work. If 100 weld joints of a 2" pipe is 200 weld work and so on.
The meaning of dia inch is the number of weld joints multiplied by the dia of a given pipe size, since the weld joints is on the 6" pipe, the calculations should be 1 weld x 6" = 6 dia inch.
Threading joint, weld joint, Flanges joint