Tap Cutting Conditions
RECOMMENDED TAPPING SPEEDS AND LUBRICANTS
| Component Material | Tapping Speed | Lubricant | |
| Ft/Min | M/Min | ||
| STEEL MILD STEEL | 30-50 | 9-15 | SOLUBLE OR SULPHURISED OIL |
| STEEL up to 0.4% CARBON | 20-40 | 6-12 | SOLUBLE OR SULPHURISED OIL |
| STEEL up to 0.7% CARBON | 20-30 | 6-9 | SOLUBLE OR SULPHURISED OIL |
| STEEL over 0.7% CARBON | 15-25 | 4.5-8 | SOLUBLE OR SULPHURISED OIL |
| STEEL ALLOYS up to 60 Tons Tensile | 15-25 | 4.5-8 | SOLUBLE OR SULPHURISED OIL |
| STEEL ALLOYS over 60 up to 80 Tons Tensile | 10-15 | 3-4.5 | SULPHURISED OIL |
| STAINLESS STEEL MARTENSISTIC | 10-20 | 3-6 | SULPHURISED OIL |
| STAINLESS STEEL AUSTENITIC | 10-15 | 3-4.5 | SULPHURISED OIL |
| TOOL STEEL | 15-25 | 4.5-8 | SULPHURISED OIL |
| TITANIUM | 15-25 | 4.5-8 | SULPHURISED OIL |
| TITANIUM ALLOYS | 8-12 | 2-4 | SULPHURISED OIL |
| NICKEL ALLOY STEELS NIMONIC & INCONEL | 8-12 | 2-4 | SULPHURISED OIL |
| IRON GREY CAST | 20-40 | 6-12 | SOLUBLE OIL OR AIR BLAST |
| IRON MALLEABLE | 20-40 | 6-12 | SOLUBLE OIL OR AIR BLAST |
| IRON CAST ALLOY | 15-30 | 4.5-9 | SULPHURISED OIL |
| ALUMINIUM | 50-70 | 14-21 | SOLUBLE OIL OR PARALLEL |
| ALUMINIUM ALLOYS | 30-50 | 9-15 | SOLUBLE OIL OR PARALLEL |
| BRASS SOFT | 70-100 | 20-30 | SOLUBLE OIL OR PARALLEL |
| BRASS HARD | 40-50 | 12-15 | SOLUBLE OIL OR PARALLEL |
| BRONZE PHOSPHOR | 30-40 | 9-12 | SOLUBLE OIL OR PARALLEL |
| BRONZE HIGH TENSILE | 25-35 | 8-11 | SOLUBLE OIL OR PARALLEL |
| COPPER SOFT | 50-70 | 15-20 | SOLUBLE OIL OR PARALLEL |
| COPPER HARD | 30-50 | 0-15 | SOLUBLE OIL OR PARALLEL |
| GUN METAL | 30-50 | 9-15 | SOLUBLE OIL OR PARALLEL |
| MAGNESIUM ALLOYS | 50-70 | 15-21 | SOLUBLE OIL OR PARALLEL |
| ZINC BASE ALLOYS | 50-70 | 15-21 | SOLUBLE OIL OR PARALLEL |
| BAKELITE | 30-50 | 10-15 | AIR BLAST |
| PLASTIC SOFT | 30-50 | 10-15 | AIR BLAST |
| PLASTIC HARD | 15-30 | 4.5-9 | AIR BLAST |
CONTACT US
Mercury Tool and Gauge offer an extensive range of products that are manufactured to meet the most demanding quality needs in today's market.
If you would like to find out more about our services get in touch with Mercury Tool & Gauge today! Our dedicated customer service team are waiting for your call and will assist you with your requirements.
Tel: +44 (0)2476 694 030
Email: sales@mercury-gauge.com