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 |
