welding-alloys.com 9 Please also refer to the following section on the joining of Welding Alloys wear liners to various other products by means of welding and fasteners. Various methods exist, such as: • All-round full length fillet welds • All-round interrupted fillet welds • Plug welds • Welded studs with nuts • Welded sockets or nuts with bolts • Countersunk inserts with CSK bolts & nuts Note 1: Due to its design, this configuration has limited structural strength. Once the joint shown by welds A & B is complete, the inside corner shall be capped using an appropriate Welding Alloys Hardfacing consumable, as shown by weld C. Note 3: Due to a high risk of hardface contamination of the weld metal, weld G shall be done using a 307 Stainless steel consumable such as TRI S 307-O or HARDFACE 19 9 6-O. After completing the joint (weld G), cap the inside corner using an appropriate Welding Alloys Hardfacing consumable, shown by weld H. Note 5: During welding of inserts, it is important not to get the weld metal contaminated with hardface material. If this happens, the weld will be brittle and will break during installation and fastening of the bolt. If there is a chance of hardface contamination, welding shall be done using an appropriate welding consumable such as TRI S 307-O or HARDFACE 19 9 6-O. Note 6: Attachment of studs by conventional stud welding methods or by means of the MIG / MAG or TIG process. There is no risk of hardface contamination during stud welding. Note 7: Attachment of threaded sockets and nuts by means of the MIG / MAG or TIG process. There is no risk of hardface contamination during socket welding. Note 2: To ensure a crackfree joint, weld E shall not come into contact with the hardfacing material shown in the area of the arrow. Once the joint shown by welds D & E is complete, the inside corner shall be capped using an appropriate Welding Alloys Hardfacing consumable, as shown by weld F. Note 4: None of these welds pose any risk of hardface contamination and can therefore be welded using a general purpose carbon steel consumable such as SPEEDARC T 11. Please see Table 6 for more detail Fixing & assembly Table 5: Colour code legend Wear Plate - Base material Wear Plate - Hardfaced layer Joining welds Filler (i.e. mild steel round bar) Structural steel angle iron Backing structure C B A F E D H G Back to contents page
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