How do you choose an arc welding electrode?

There are several factors to consider in welding rod selection:

1. Base metal properties.
2. Tensile strength.
3. Welding current.
4. Base metal thickness, shape and joint fit-up.
5. Welding position.
6. Specification and service conditions.
7. Environmental job conditions.

What is the specification of welding electrode?

Each electrode has a certain current range. The welding current increases with the electrode size (diameter). The electrodes are generally manufactured in the length of 250mm to 450mm. The Indian Railways has issued standard specification IRSM 28-2012 for manual metal arc welding electrodes and gas welding rods.

What size welding electrode do I need?

Generally the size of the electrode that should be used depends on the thickness of the part to be welded. For thin metals the electrode is only slightly larger than the metal to be welded. For example if a plate is of 2.0 mm thick the electrode of 2.5 mm should be used.

What is the standard arc welding electrode?

Common electrodes used in Stick welding are 6010, 6011, 6013, 7018 and 7024 with the most common diameters ranging from 1/8- to 5/32-in. Each of these electrodes offers all-position welding capabilities (except 7024).

What is the standard specification of an electrode?

The standard provides approximately 50 to 100 types of welding wire. Electrodes for manual and automatic arc welding of low carbon, medium carbon, and low- alloy steels are mostly made of wire, contain not more than 0.1 per cent carbon and 0.35 to 0.6 per cent manganese.

How are electrodes specified?

The “E” indicates an arc welding electrode. The first two digits of a 4-digit number and the first three digits of a 5-digit number stand for tensile strength. For example, E6010 means 60,000 pounds per square inch (PSI) tensile strength and E10018 means 100,000 psi tensile strength.

What are the 4 classifications of electrodes?

1 indicates flat, horizontal, vertical position. 2 indicates flat, horizontal position. 4 indicates flat, horizontal, vertically downward position. The number 8 gives you information about the type of coating and current used.

What size arc welding rods do I need?

The most common stick welding rod sizes are 3/32″ (2.4mm), 1/8″ (3.2mm), and 5/32″ (4mm). These sizes are enough to weld the most common projects with stick welding. Small diameter rods, for example, 1/16″ (1.6mm) and 5/64″ (2mm), are more challenging to weld with than common size rods.

How do you specify an electrode?

What is 7010 welding rod used for?

Applications: E7010-A1 is most commonly used for welding carbon-moly piping used in high pressure, high temperature steam service and structural shapes, plates and castings, which have a 1/2% Mo content.

What is 6013 welding rod used for?

6013 Welding Rods The 6013 electrode is best used for light to medium penetration on thin or sheet metal pieces. 6013 electrodes are commonly used in manufacturing truck frame bodies, metal furniture, storage tanks, farm implementations, or where aesthetics are of grave importance.

What is 6011 welding rod used for?

E 6011 electrode is a general-purpose electrode performs welding in all positions and efficiently in vertical-up and over-head positions; it is used mainly for sheet metal welding and low silicon deposit application. The electrode arc is easy to control and produces a flat weld bead with light slag formation.

How are electrodes classified?

The welding electrodes are classified on the basis of the electrode metal, flux coating, current used, position of welding, performance characteristics, chemistry and the mechanical properties of the weld metal etc.

What is E6010 welding rod used for?

The E6010 is one of the most common sticks used in industry. It is an all-position, DC-only rod. It is well-known for its deep penetration, which is why it is widely used for root pass welds. Its deep penetration and fast-freeing cellulose flux make it a prime choice for stove pipe welding.

What is 8010 welding rod used for?

An 8010 welding rod is specifically used for vertical down welding and out-of-position welding techniques for steel pipes up to 80 Ksi tensile strength, although it can be employed in all welding positions if desired.

How is the electrode size identified?

The electrode size refers to the diameter of its core wire and each electrode has a certain current range. The welding current increases with the electrode size (diameter). The length of electrodes may depend on diameter of the core wire ranging from 250 to 450 mm i.e. larger the core diameter larger the length.

Is 6013 or 6011 better?

The 6013 electrode is best used for light to medium penetration on a thin metal, or sheet metal. The 6011 electrode offers more penetration than the 6013 so you can weld a slightly thicker material.

What is the size of an arc welding electrode?

Arc welding electrodes are identified using the A.W.S, (American Welding Society) numbering system and are made in sizes from 1/16 to 5/16 . An example would be a welding rod identified as an 1/8″ E6011 electrode. The electrode is 1/8″ in diameter. The “E” stands for arc welding electrode.

What is the correct polarity of a shielded arc electrode?

The manufacturer’s recommendations should be followed when a specific type of electrode is being used. In general, direct current shielded arc electrodes are designed either for reverse polarity (electrode positive) or for straight polarity (electrode negative), or both.

What does E6010 mean on an arc welding electrode?

The number E6010 indicates an arc welding electrode with a minimum stress relieved tensile strength of 60,000 psi; is used in all positions, and reverse polarity direct current is required. The arc welding electrode identification system for stainless steel arc welding is set up as follows:

What are arc welding welding rods?

Arc welding electrodes are identified using the A.W.S, (American Welding Society) numbering system and are made in sizes from 1/16 to 5/16 . An example would be a welding rod identified as an 1/8″ E6011 electrode. The electrode is 1/8″ in diameter The “E” stands for arc welding electrode.