gums on evcavator bucket

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hi all asked to rebuild excavator bucket and among other things the gums (leading sides)have to replaced. What material are they? Bisalloy 80 or Bisalloy 400 (sorry im a ozzie, 80 is strenghth 400 is wear with some strenghth) i was thinking 400 but a mate said it was 80 other wise they crack? any ideas thanks heaps
Reply:AR 400 is what I always use, then give the leading edge a kiss with hard surfacing. Mild steel and earthmoving do not play well together. You can spend thousands of dollars and hundreds of hours on a bucket, make sure the customer understands what he is getting in to. AR 400, wear blocks, hard surfacing rods, and your labor are not cheap.Disclaimer; "I am just an a$$hole welder, don't take it personally ."
Reply:A side note I have also used T-1 steel for lips, but I would never pay for that out of pocket.Disclaimer; "I am just an a$$hole welder, don't take it personally ."
Reply:Gentlemen, I have been looking for information on excavator buckets and have not found much. I am looking to change the bottom and sides on a one yard bucket and was worried the original metal was something other than mild steel. I am planning to have 1/2" plate (mild steel) rolled to the approximate shape, and finish fitting with the machine and wedges. This is just the bottom and sides, not any of the cutting edges. My question is will this be strong enough, or will I need to go with a harder steel. Any help would be greatly appricated
Reply:Originally Posted by TozziWeldingA side note I have also used T-1 steel for lips, but I would never pay for that out of pocket.
Reply:Originally Posted by DABhi all asked to rebuild excavator bucket and among other things the gums (leading sides)have to replaced. What material are they? Bisalloy 80 or Bisalloy 400 (sorry im a ozzie, 80 is strenghth 400 is wear with some strenghth) i was thinking 400 but a mate said it was 80 other wise they crack? any ideas thanks heaps
Reply:Originally Posted by trsullivanGentlemen, I have been looking for information on excavator buckets and have not found much. I am looking to change the bottom and sides on a one yard bucket and was worried the original metal was something other than mild steel. I am planning to have 1/2" plate (mild steel) rolled to the approximate shape, and finish fitting with the machine and wedges. This is just the bottom and sides, not any of the cutting edges. My question is will this be strong enough, or will I need to go with a harder steel. Any help would be greatly appricated
Reply:g'day DAB, what sort of bucket is it, and what size? if there is still a build plate on it you can always track down the mob that made it and check with them. otherwise i would agree with your mate and guess at Bis 80.
Reply:I've seen cheaper buckets, like ditching buckets made from mild steel that hold poorly because none of the cutting edges(sides) or reinforcing ribs on bottom/back were made from Ar400 or such. We dig thru alot of different mat'l such as sand,clay, slag,stone so we typically only buy top brands. I see the lesser ones at auctions some even lacking any reinforcing or protection. If you were loading mulch all day, these would be fine.As a note, we re-skinned some of our trench boxes a few years ago and used 1/4" AR400.