Abrasive Selection for Weld and Rust Removal

Working with steel, stainless steel, and aluminum requires abrasives that withstand heat and maintain a sharp cut. Sanding discs for metal utilize aluminum oxide or zirconia alumina grain, held by resin bonding. Grits range from P36 to P400. The coarse P36–P80 range grinds down weld reinforcement and heavy rust, while P120–P400 levels the surface for brushing or polishing. They mount on angle grinders and random orbital sanders.

Addressing Metalworking Conditions

Post-weld cleanup involves removing slag and grinding the bead flush with the base metal. Rust removal on ship structures, steel fabrications, and storage tanks prepares the surface for protective coatings. Stainless steel parts use the P320–P400 range to establish an even grain direction before a brushed finish. When working with aluminum, an optional anti-clogging coating reduces metal buildup on the abrasive face.

Maintenance and Backing Formats

For maintenance work on shafts and flange faces, the finer grades blend light damage and clean mating surfaces. Hook and loop backing facilitates quick disc changes on angle grinders or orbital sanders. PSA backing is available for plain backing pads.

Custom Sourcing and Shipping

Grade, diameter, and backing type can be specified based on the workpiece material, tool type, and target roughness. Orders can be arranged by process stage to combine coarse and fine steps. A sample is confirmed against your workpiece material before bulk production. Small quantities dispatch in roughly three days; larger volumes take about a week. Payment is 50% deposit, balance after inspection.

Product Specifications

Parameter	Specification
Abrasive material	Aluminum oxide or zirconia alumina
Backing type	Hook and loop or PSA
Grit range	P36–P400
Common diameters	100mm, 115mm, 125mm
Suitable materials	Steel, stainless steel, aluminum, alloys