Here are the top 10 Volvo bestselling excavator buckets:

1. Volvo EC210B Rock Bucket is a heavy-duty rock bucket that is perfect for digging and loading in tough conditions. It is made from high-quality AR400 steel for superior abrasion resistance and impact strength. The bucket features a wide opening and aggressive teeth for fast loading and dumping.
    
2. Volvo EC360B Rock Bucket is a larger version of the EC210B Rock Bucket that is ideal for even more demanding applications. It has a larger capacity and can handle even the biggest rocks with ease.
   

   Volvo EC360B Rock Bucket

    
3. Volvo EC480D HDR Rock Bucket is the most powerful rock bucket in the Volvo lineup. It is made from high-grade AR500 steel for extreme durability and can handle even the toughest rocks and materials.
   

   Volvo EC480D HDR Rock Bucket

    
4. Volvo EC700E Standard Bucket is a versatile bucket that can be used for a variety of applications, including digging, loading, and carrying. It is made from high-quality AR400 steel for durability and features a wide opening for fast loading and dumping.
   

   Volvo EC700E Standard Bucket

    
5. Volvo EC700E High Density Bucket is designed for maximum material handling capacity. It has a thicker body and walls than the standard bucket for added strength and durability. The bucket also features a narrow profile for improved stability and maneuverability.
   

   Volvo EC700E High Density Bucket

    
6. Volvo EC900E Rock Bucket is a heavy-duty bucket that is perfect for mining and quarrying applications. It is made from high-grade AR500 steel for extreme durability and can handle even the toughest rocks and materials.
   

   Volvo EC900E Rock Bucket

    
7. Volvo EC900E Skeleton Bucket is a lightweight bucket that is ideal for applications where weight is a concern. It is made from high-strength AR400 steel and features a skeleton design that reduces weight without sacrificing durability.
    
8. Volvo EC140B Screening Bucket is a specialized bucket that is designed for screening materials. It features a perforated bottom that allows the smaller materials to fall through while the larger materials are retained in the bucket.
   

   Volvo EC140B Screening Bucket

    
9. Volvo EC210B Grapple is a versatile attachment that can be used for a variety of applications, including picking up and moving objects, clearing debris, and breaking up materials. It is made from high-quality AR400 steel for durability and features a strong, locking mechanism.
   

   Volvo EC210B Grapple

    
10. Volvo EC360B Tilting Bucket is a bucket that can be tilted to dump its contents in any direction. This makes it ideal for loading trucks and trailers from the side or back. The bucket is also equipped with a quick-release mechanism for easy attachment and removal.
    

    Volvo EC360B Tilting Bucket

The best steel for excavator buckets is AR360 or AR400. These steels are heat treated to provide excellent abrasion resistance and high impact strength. They are also relatively affordable, making them a good value for money.