Excellent presentation! That is nearly identical to the lecture lesson I gave for 30 years to my metals classes, and I turned out hundreds of future welders,machinists and mechanics.
Thanks for that! Parts 1 and 2 were both great! I once asked a small steel supplier what was the composition of their A36 steel and his answer was, "Nobody knows" which makes more sense now I guess. I have turned A36 rod down in my home machine shop and had inclusions with recognizable things in them, like small parts of screw or a washer. I took this as a sign that I should be buying better steel. I'm looking forward to the next time I need some alloy steel and buying it from you. Thanks!
Thank you. I can tell you a story about air hardening steel that you may not have known. A deceased gunsmith friend of mine started his apprenticeship just after WW2 at a local engineering works which carried out ship maintenance, had its own foundry operation and carried out work for NZ Railways. One of the men decided to play a joke on his fellow workers during the lunch break. They were sitting on a large steel beam (more likely an I-beam than an RSJ) which was sitting on its side and was intended for railway ‘plate girder’ bridging. He hit it with a tripping hammer which was used to undo cylinder bolts on marine engines and it split straight down the centre of the web. He was so scared by what he had done that he immediately went home. The subsequent investigation revealed that the beam had come from Japan and the steel works had been using scrap railway rails containing manganese without realising that the resulting product would air harden and become extremely brittle. It is my understanding that annealing ovens are essential when producing manganese steel. Cheers from NZ🇳🇿.
I used to work for Rolls Royce and they used some weird and wonderful steels for aircraft engineering. I've seen steels that change size and shape depending how rough the machining was in the previous operation!
I learned about steels from two sources. The old Earl M. Jorgenson Steel Co. Catalog. Now called E.M.J. company. I like the old blue book catalog more than the online catalog. The other is MMPDS handbook published by the FAA. It was formally called MIL-HNBK-5. It is in several volumes and is likely more expensive and more info than most people need. The E.M.J. catalog is free online.
Thank you for your video. Working with metals it is important to know the best material to use in curtain applications. Your videos highlight this . Again THANK YOU
Wonderful followup- thankyou so very much! I will be looking into your website to "return the favour" as it were, spectacularly concise for an amature to understand, love your roots and you have my respect... God Bless & Happy New Year
We make a lot of parts from D2. There is an alternative of a modified D2 called DC 53 we use too. Way easier machining & longer wear/crack resistant if heat treated correctly. One of the only pluses of being in the Shitcago area is we have FPM that knows how to heat treat it
As the old saying goes. If you can't blind them with science, baffle them with bullshit. No offence meant to you though Jason. Thanks for the explanation.
Excellent presentation! That is nearly identical to the lecture lesson I gave for 30 years to my metals classes, and I turned out hundreds of future welders,machinists and mechanics.
Thanks for that! Parts 1 and 2 were both great! I once asked a small steel supplier what was the composition of their A36 steel and his answer was, "Nobody knows" which makes more sense now I guess. I have turned A36 rod down in my home machine shop and had inclusions with recognizable things in them, like small parts of screw or a washer. I took this as a sign that I should be buying better steel. I'm looking forward to the next time I need some alloy steel and buying it from you. Thanks!
You are very welcome! Glad it was helpful.
Thank you. I can tell you a story about air hardening steel that you may not have known. A deceased gunsmith friend of mine started his apprenticeship just after WW2 at a local engineering works which carried out ship maintenance, had its own foundry operation and carried out work for NZ Railways. One of the men decided to play a joke on his fellow workers during the lunch break. They were sitting on a large steel beam (more likely an I-beam than an RSJ) which was sitting on its side and was intended for railway ‘plate girder’ bridging. He hit it with a tripping hammer which was used to undo cylinder bolts on marine engines and it split straight down the centre of the web. He was so scared by what he had done that he immediately went home.
The subsequent investigation revealed that the beam had come from Japan and the steel works had been using scrap railway rails containing manganese without realising that the resulting product would air harden and become extremely brittle. It is my understanding that annealing ovens are essential when producing manganese steel. Cheers from NZ🇳🇿.
People buying futures in foreign steel markets need to be aware of these details.
-- Thanks for part 2. --
Steel denomination is a mess, but you really helped with this an the previous video. A valuable effort, thank you
Glad it was helpful!
I used to work for Rolls Royce and they used some weird and wonderful steels for aircraft engineering.
I've seen steels that change size and shape depending how rough the machining was in the previous operation!
Thanks Jason. Been working the metal for many years and learned more stuff
I learned about steels from two sources. The old Earl M. Jorgenson Steel Co. Catalog. Now called E.M.J. company. I like the old blue book catalog more than the online catalog. The other is MMPDS handbook published by the FAA. It was formally called MIL-HNBK-5. It is in several volumes and is likely more expensive and more info than most people need. The E.M.J. catalog is free online.
Thank you for your video. Working with metals it is important to know the best material to use in curtain applications. Your videos highlight this . Again THANK YOU
Glad it was helpful!
Thanks, Jason... Didn't know there would be a part II 👍
Clear as mud. A single standard would be nice. Well explained.
Another great presentation!
Wonderful followup- thankyou so very much! I will be looking into your website to "return the favour" as it were, spectacularly concise for an amature to understand, love your roots and you have my respect... God Bless & Happy New Year
We make a lot of parts from D2. There is an alternative of a modified D2 called DC 53 we use too. Way easier machining & longer wear/crack resistant if heat treated correctly. One of the only pluses of being in the Shitcago area is we have FPM that knows how to heat treat it
Thanks
Wow your voice from video one to video two is hilarious
No kidding! My mic wasn't working in the first video.
Thank you, Bladesmith here
🙂🤔🌎
As the old saying goes. If you can't blind them with science, baffle them with bullshit. No offence meant to you though Jason. Thanks for the explanation.