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Welding Gas Quality And Gas Grades
Listed below are some of the more commonly used gas grades commercially available. In manual welding an experience operator can sometimes allows for many inconsistencies. In order to perform repeatable precision arc welding with an automated welding system, it is vital to have all inputs to the welding system consistent. Ensure that you have a supplier of welding gas that already has a quality control program established and can provide consistent quality gas.
| U.S. Gas Grade | % Purity | Typical Composition |
| Industrial Grade | 99.997 | 10 PPM H2O |
| High Purity | 99.996 | 3 PPM H2O |
| Ultra High Purity | 99.999 | 5 PPM 02 |
| 3 PPM H2O | ||
| 5 PPM O2 | ||
| 6 PPM N | ||
| 1 PPM THK | ||
| Ultra Plus | 99.9995 | 1 PPM H2O |
| 1 PPM 02 | ||
| 0.5 PPM CO | ||
| 1 PPM H | ||
| 2 PPM N | ||
| 0.5 PPM THC | ||
| Research Grade | 99.9995 | 3 PPM H2O |
| 1 PPM O2 | ||
| 1 PPM CO | ||
| 1 PPM H | ||
| 2 PPM N | ||
| 1 PPM THC |
About Pro-Fusion
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31 North 1st East
Rexburg, ID 83440 USA
Tel (208) 656-0665
Fax (208) 656-0766
email: sales@pro-fusiononline.com