Welding Steels without Hydrogen Cracking (Woodhead Publishing Series in Welding and Other Joining Technologies) Book Price in India, Specifications, Reviews & Offers. Buy online at Amazon.

very nice Vedeo Technical
how can one determine the preheating temperature to avoid cracks before welding sir
Happy teachers day sir,
Thanks You for the Lecture.
you are good
diffusion means what ?
Well this is some great info. But some more details on what procedures should be done to help with 7018 electrodes that weren't kept in an oven. I live in dry Colorado but I suspect that since I can't leave my rods in an oven to keep them dry that I am running a risk in using them. You mentioned preheating or post heat. What about using both? For how long. What kind of temperatures. Would it help to get the 7018 rod hot before using it. You've got a lot of great info in this video but not enough to really help.
Very nice Technical Vedeo
第一次直接看到氢
Wish you would have panned your audio and got rid of that annoying music.
What if the 7018 rods haven't been in an oven? How much exposure to the atmosphere can they handle? Obviously in humid environments I'm guessing you've got an hour or 2. What about in dry environments like Arizona, Colorado, Nevada and such. Can I pass my torch over a rod I am getting ready to use and heat it up to 200 or 300 degrees F or do they have to be oven baked to what is it like 700 degrees F for 8 hours. I can't remember the procedure for that anymore. Seems to me most people like myself can't justify leaving the rods in an oven until you're ready to use them.
Interesting music. Are you imparting wisdom or riding off to slay a dragon? xD
I have a condition on my job where a cjp joint rite after the weld was completed was quenched by water due to a hooch malfunction. Good video. Thank u!
Good video, thank for making this.
Dear sir, Can you please elaborate how cooling rate is higher (fast) at weld center and lower (slow) at the fusion boundry? ( Video timer - 27: 30)