Posted by unc on January 26, 2016 at 12:53:21 from (70.28.245.60):
In Reply to: Bale spear material posted by MNfarmboy83 on January 26, 2016 at 06:43:54:
MNfarmboy: Good question about spears. I've seen every sort of lashup and mickey mouse arrangement out there. You need a medium carbon steel and it MUST be heat treated. If you have the shop facilities to heat treat long pieces, something like 1045, 1070, or 5160 will work if you heat treat them to about 43C Rockwell. If you don't have heat treatment available, you can buy 4140 already heat treated, but at the current price, you may find a commercial FORGED spike is a better buy. Remember, if you are welding any steel or steel alloy with more than 0.3% carbon, you must use appropriate filler metal, pre-heat, and post heat the welds. It's nice to have access to a lathe so you can turn the points on the spears if you decide to fabricate your own.
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