What is the term for words pronounced in the same manner, but spelled slightly different-- LH-70 is Lincoln's code for "Low-Hydrogen" code rod-- the flux is hydroscopic (moisture absorbing) in nature, so it must be kept in a dryer/oven whatever- we often used older refrigerators with 100 watt light bulbs to keep the "Lo-Hi/Lo-Hy" 7018 SMAW rods in, and our "rod jockeys" would bring us about 5 fresh sticks at a time.
With some code rods, you can re-strike and use a 2-3" stub ( as eyeball measured from the jaws of the stinger- but not so much with 7018-- when you break off the arc, the flux fuses into a hard core, which has to be broken off before you can re-strike the rod--
Doing this causes slag embrittlement in the HAZ, so we often ran the root passes with 3/32" 7018, and the fill and cap passes with 1/8" 7018. You will see the same resulting defect of slag embrittlement if you are running a MIG weld, and a gust of wind blows the shielding gas from the cup-- one of many good reasons why welding outdoors or in ??? weather conditions, hard to be a stinger and a stick of LH-70.
Weldors have their own nomenclature for the various SMAW electrodes we use in our trade-- Lincoln 6010 (5P) and Lincoln 7010 (HYP) are commonly used electrodes used for pipe welding (Schedule 80 black pipe) but we often call the HYP "Hippie" rod- or Ken, is that "Hippy", you tell me. RWTF
Last edited by Run With The Fox; 09/16/19 11:41 AM.
