A2 vs 1045 2

[IceStationZebra]

I need to replace some wear bars on a small wheel loader bucket and have some A2 and 1045 on hand. Which one will give me the best wear against concrete and sand? I have found some comparisons amongst various tool steels, but nothing to compare 10xx vs. tool steel.

Thanks, ISZ.

 

[arunmrao]

For any abrasion related application tool steels are always better due to the presence of complex carbides in the matrix. In 1045 steel,you could have a pearlitic or martensitic matrix which is not enough to resit wear. However, 1045 material is cheap and abundantly available.. While there can be a few restrictions in processing tool steels.

Save water Drink Beer

 

[TVP]

A2 will have better wear resistance than 1045. Quench and temper to 58-62 HRC.

 

[IceStationZebra]

Thanks for the responses. A2 was my guess but it pays to ask!
ISZ

 

[swall]

If you are contemplating welding the wear bars to the bucket, the 1045 might a better choice. You would need to localize harden the wear areas, either with induction hardening or flame hardening, then use proper preheat/postheat for the welding.

 

[metengr]

I would use abrasion resistant plate (AR400 or Hardox) that is weldable, and is a common choice for this type of application.

http://www.oxelosund.ssab.se/hardox/buckets/part_03.htm

 

[IceStationZebra]

The bucket originally had a 4" cutting edge that has been worn down about 2" already. I am purchasing a new weld-on cutting edge to fix that.

The other area of concern is two pieces of 1/2" x 2" steel running front to back. They are almost worn through in the "heel" area. I would use AR400 if I was going to buy the metal...but in this case I am only trying to use what metal I have on hand to make this bucket last a little longer. The area around the quick attach mounting has cracked out once already and I suspect it will fail again before wear becomes an issue again.

ISZ