Single Bevel Weld: What, Symbol, Diagram, Process, Machine, Strength And Several Facts

In this article, the subject ,”single bevel weld” with  single bevel weld respected facts such as, Symbol, Diagram, Process, Machine, Strength will be summarize in a brief manner.

In a butt weld or a groove weld the components are related to each other in a same surface. The butt weld and groove weld represent the same type of the weld. American National Standards Institute represents the term groove weld and International Organization Standardization represents the term of butt weld.

What is a single bevel weld?

Angle of bevel is only one half of the weld of V groove. The dimension for the bevel weld only shown within the symbol of the weld itself.

A single bevel weld can be explain as, a groove weld that’s one part has a junction edge beveled from one side. The parts consists by the single bevel weld are, Root face, Groove angle, Root gap and Bevel angle.

Single bevel weld symbol:

Single bevel weld symbol can be determined with the help of some steps. The steps are listed below,

Determine the classification of the joint and preparation of the joined is required:-

The AWS A2.4:2007 is introduced by the American Welding Society they are published the symbol for the process of welding which contain different classifications of joints of groove which can be double or single. Single groove means joint by only one side and double groove means joint by both side. The symbols of the welding for the different types of joints of groove are listed below,

  1. Bevel groove
  2. V groove
  3. Scarf
  4. Square groove
  5. U groove
  6. J groove
  7. Flare V groove
  8. Flare bevel groove

Visualize the opening of the root:-

The opening of root will be indicating within the sign of the groove type. Root opening actually the amount of the detachment by the two pieces of the base metal. If detachment is not present showing that’s mean no space is present in by the parts. 0 is also admissible for the sign of the root opening.

Visualize the angle of the groove:-

The groove angle is expressed as degree. The angle of the groove can be present in the above section or the below section of the dimension of the root. The presences of groove angle depend upon the arrow.

Visualize the radii of the root and also the face dimension of the root:-

In the two ways, the radii of the root and also the face dimension of the root can be determined. The ways are listed below,

With the help of the drawing of cross section the dimension for the root opening is shown.

Need to note down the tail for the symbol of the welding process.

Visualize the thickness of the groove:-

The thickness of the preparation of the grooves is shown in the side of the left of groove weld symbol.

Visualize the size of the weld:-

In a groove weld, weld size is the effective throat. The weld size is included the penetration rate of the root of the groove and also the depth of the groove. The weld size will be display the left side of the symbol of the groove in parenthesis. If number is absent in the parenthesis then weld size not be lower than the depth of the groove. 

Visualize the contour finish:-

The contour finish for the fillet weld can be classified in three categorized, such as,

  • Flat contour finish
  • Concave contour finish
  • Convex contour finish

Visualize the finishing process:-

The symbol of the welding describes how much contour can be achieved. As a example, a flat contour by the grinding process the requirement is, AWS A2.4:2007 is introduced by the American Welding Society standard symbol for Brazing, Non-destructive investigation identified methods of finishing with 7th unspecified method,

  • C – Chipping
  • G – Grinding
  • H – Hammering
  • M – Machining
  • P – Planishing
  • R – Rolling
  • U – Unspecified

Visualize the edge of the joint to be produce when the picture demands for a single bevel:-

In the case for the J groove, flare bevel and bevel symbol of welding inform us which side need to produce by having an arrow which is broken. When we observe the arrow which is already broken that’s mean the particular the side of the weld need to prepared.

Single bevel weld size:

The size for the single bevel is included the penetration rate into the root of the groove weld and also depth of the groove. In the side of the left the size for the single bevel weld will be shown of the symbol of the single bevel weld in parenthesis.

If any number is not contain by the parenthesis then obviously the size of the single bevel weld surely is not less than the depth of the groove of single bevel weld.

Single bevel weld joint method:

A bevel shape weld means the structure of the edge is not perpendicular across the faces of the parts. The words chamfer and bevel overlap in usage.

The single bevel weld joint can be making stronger using the method name is, Tungsten Insert Gas Welding. Another name for the Tungsten Insert Gas Welding is, Gas Tungsten Arc Welding. With help of Tungsten Insert Gas Welding also cleaner weld can be making. The weld is produced by heating with an arc between a single tungsten (non consumable) electrode and the work.

GTAW helps prevent distortion, particularly on thin materials. Overall, the lower heat generated by the GTAW process also minimizes the chances of burn-through on thin materials.

Shielding is obtained from an inert gas mixture. No weld spatter or slag is produced.

In the general uses of the chamfer and bevel they are frequently permutation. Even though some usage of technical purpose the chamfer and bevel can be differentiated sometimes.

The other method are to shape a single bevel weld joint are listed below,

  1. Metal Insert Gas Welding
  2. Flux Cored Arc welding
  3. Submerged Arc Welding 
  4. Shield Metal Arc Welding

Single bevel weld design advantages and disadvantages:

The advantages and disadvantages of the single bevel weld design is listed below,


  • Leak proof joining
  • Joining of the different shapes
  • Metals which are dissimilar are jointed
  • Strength of the joint is superior
  • High load capacity
  • Joining of plastics
  • Light welded assemblies
  • Changing of the mechanical properties


  • Skilled welders are needed to perform the single bevel weld design.
  • Electricity required.
  • Joints of the single bevel weld design are brittle type for this reason the fatigue strength will be less comparative to the member joints.
  • The inspection for the single bevel weld design is more complicated.
  • Defects such as, incomplete penetration, slag inclusion, air pocket, are very complicated to detect.

How to measure a single bevel weld?

The formula is used to measure a single bevel weld is listed below,



 P is represented as, Pounds of wire or electrode is required in the single bevel weld.

W = Weight of the weld metal in per foot.

L = Length of the weld which is expressed as, feet

E = Deposition efficiency

The fillet weld size can be estimated with the help of leg length. The fillet weld size determine as, an equilateral triangle. An original weld never can be triangle and the shape will be convex or concave and not required to equal the lengths of the legs.

Frequent Asked Question:-

Question: – What are the advantages using the bevel weld?

Solution: – The advantages of using the bevel weld is listed below,

The J bevel is that the boundary layers are stay more uniform through a larger portion of a tube and less material is used to fill the space.

Less amount of welding is involved for this particular reason heat affected zone is smaller in size.

single bevel weld
Image – Side views of a bevel (above) and a chamfer (below);
Image Credit – Wikipedia

Question: – What is easiest welding process.

Solution: – The easiest welding process is Metal Insert Arc welding process.

In the Metal Insert Arc Welding method the electric arc is produce in between a workpiece metal and consumable wire electrode.

Metal Insert Arc Welding is most used in source of direct current power, constant voltage. The Metal Insert Arc welding method also used in alternating current and constant current.

Metal Insert Arc Welding process inert gases or mixture of gases as the shielding gas. Helium and Argon mixes are inert gases and non ferrous metals are used. In the Metal Insert Arc Welding method high skilled operators are not needed to operate.

Image – Metal Insert Arc welding process weld area:
(1) Direction of travel, (2) Contact tube, (3) Electrode, (4) Shielding gas, (5) Molten weld metal, (6) Solidified weld metal, (7) Workpiece;
Image Credit – Wikipedia


Single V welds is almost similar to the bevel joint. In the single v welds only one side have beveled edge and in the bevel joint both of the sides have beveled edge.

Indrani Banerjee

Hi..I am Indrani Banerjee. I completed my bachelor's degree in mechanical engineering. I am a enthusiastic person and I am a person who is positive about every aspect of life. I like to read Books and listening to music.

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