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Quantity of Welding Consumables

Quantity of Welding Consumables

Quantity of Welding Consumables

Hello All ,
      Is there a particular method for calculating the quantity of welding elctordes to be used in a particulat job .


RE: Quantity of Welding Consumables


Lincoln has some good methodoligies.  If you can get your hands on their Welding Pressure Pipelines & Piping Systems booklet, it will givey ou some good guidance.  I'm sute there are other resoiurces available on the Internet.

Basically, it's a volume calculation depending on your joint geometry & fit up - how much volume of rod/consumable goes into each weld and what does it weigh.

For remote, cross country pipelines, generally what we will do is calcualte the theoretical amount of electrodes (in lbs or kgs) and order 50% more.

Greg Lamberson, BS, MBA
Consultant - Upstream Energy
Website: www.oil-gas-consulting.com

RE: Quantity of Welding Consumables

There are many variables.

The deposition efficiency of the electrode must be taken into account as should overwelding and poor fitups.

For SMAW the electrode deposition efficiency varies GREATLY with position, restriction, welder ability , stub loss etc..

The cross sectional area of the joint plus the area of root and face reinforcement must be known.

Gerald Austin
Iuka, Mississippi

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