Inconel 713C (cast) Speeds and Feeds (Milling, Drilling, Turning)
Carbide end mills in Inconel 713C (cast): 100–300 SFM. Also called IN713C. Chart row used: “Monel & High Nickel Steel” (As cast).
Starting point: carbide end mills
RPM and IPM use the low end of the published range (100 SFM and the lowest chip load for each diameter range). RPM = SFM × 12 ÷ (π × D); IPM = RPM × flutes × chip load.
| Diameter | Chip load (in/tooth) | RPM | IPM · 2 flute | IPM · 3 flute |
|---|---|---|---|---|
| 1/8" | .0003 | 3,056 | 1.8 | 2.8 |
| 1/4" | .0003 | 1,528 | 0.9 | 1.4 |
| 3/8" | .0006 | 1,019 | 1.2 | 1.8 |
| 1/2" | .0010 | 764 | 1.5 | 2.3 |
| 3/4" | .0015 | 509 | 1.5 | 2.3 |
| 1" | .0020 | 382 | 1.5 | 2.3 |
| Diameter | Chip load (in/tooth) | RPM | IPM · 2 flute | IPM · 3 flute |
|---|---|---|---|---|
| 3 mm | .0003 | 3,234 | 1.9 | 2.9 |
| 6 mm | .0003 | 1,617 | 1.0 | 1.5 |
| 10 mm | .0010 | 970 | 1.9 | 2.9 |
| 12 mm | .0010 | 809 | 1.6 | 2.4 |
| 16 mm | .0015 | 606 | 1.8 | 2.7 |
| 20 mm | .0020 | 485 | 1.9 | 2.9 |
Full published chip-load ranges
- 1/32-1/8": .0003–.0006"
- 1/8-1/4": .0003–.0010"
- 1/4-3/8": .0006–.0015"
- 3/8-1/2": .0010–.0020"
- 1/2-3/4": .0015–.0030"
- 3/4-1": .0020–.0040"
Calculator — prefilled for Inconel 713C (cast)
Results for Milling
- Spindle RPM
- 764
- Feed
- 3.1 IPM
- Chip load
- 0.0009 in
- MRR
- 0.11 in³/min
- Power
- — HP
- Torque
- — lbf·ft
- Programmed fz
- 0.0010 in
- Actual SFM
- 100
- Spindle use
- 6%
- Pick a material in the library below to estimate spindle power and torque.
http://127.0.0.1:36217/tools?tool=milling-calculator&op=milling&material=inconel-713c-cast&dia=0.5&sfm=100&flutes=4&chip=0.001&ap=0.25
Material library
Tool & coating guidance
Grade, edge geometry and coating determine usable cutting data. Sharp polished edges can suit nonferrous work; substrate and geometry still govern. Coated vs uncoated carbide changes turning data only; no coating speed multiplier is inferred.
Tool & cut parameters
Chip thinning & cutter body
Fixed-angle peripheral estimate: hex = fz × radial factor × sin(KAPR). No radial correction at ≥50% engagement. Not a centered face-milling or ball-nose model. Sandvik geometry reference
Insert styles, guidelines & formulas
RPM = (SFM × 12) / (π × D) | Feed = RPM × programmed fz × effective zc | MRR = WOC × DOC × feed | HP = Kp × C × MRR × 1.1 ÷ 0.8 (Machinery's Handbook)
Milling Guidelines
- Start at 70% of max SFM, increase gradually
- Chip load too low → rubbing & heat buildup
- Use climb milling when machine rigidity allows
- Radial engagement >50% → reduce feed per tooth
- Round inserts: best for ramp-in and 3D surfaces
Speeds by tool material
Published starting ranges for Inconel 713C (cast) by operation and tool material. Rows marked * are estimates.
| Operation | Tool | SFM | Feed | Source row |
|---|---|---|---|---|
| milling | Solid carbide end mill | 100–300 | 0.0010–0.0020 in/tooth | Lakeshore Carbide · Monel & High Nickel Steel |
| milling | Uncoated carbide (H13A) | 125–145 | 0.0040–0.0080 in hex | Sandvik milling (large engagement) · CMC 20.24 Nickel-base superalloy, cast or cast and aged |
| milling | Coated carbide (GC1030) | 120–150 | 0.0040–0.0080 in hex | Sandvik milling (large engagement) · CMC 20.24 Nickel-base superalloy, cast or cast and aged |
| turning | Uncoated carbide (H13A) | 50–80 | 0.0040–0.0200 in/rev | Sandvik turning · CMC 20.24 Nickel-base superalloy, cast or cast and aged |
| turning | Coated carbide (GC1115) | 60–190 | 0.0040–0.0200 in/rev | Sandvik turning · CMC 20.24 Nickel-base superalloy, cast or cast and aged |
| turning | Ceramic (CC670) | 680–970 | 0.0040–0.0120 in/rev | Sandvik turning · CMC 20.24 Nickel-base superalloy, cast or cast and aged |
Machinist tips
- Chip thinning
- At light radial engagement (under half the cutter diameter) the real chip is thinner than the feed per tooth. Raise the feed to keep the chip at the chart value, or the tool rubs and wears.
- Climb vs conventional
- On a rigid CNC, climb mill so each tooth starts thick and exits thin. Use conventional milling on machines with backlash or on hard scale skins.
- Heat is the enemy
- Use high-pressure coolant, keep engagement consistent, and stay at the low end of the speed range.
Common questions
- What SFM should I use for Inconel 713C (cast)?
- Lakeshore Carbide – General Purpose End Mill Speeds & Feeds lists 100–300 SFM for carbide end mills in the "Monel & High Nickel Steel" row. Start at the low end and adjust for your machine.
- What chip load for a 1/2" end mill in Inconel 713C (cast)?
- The published range for 3/8–1/2" carbide end mills is .0010–.0020" per tooth. At 100 SFM a 3-flute 1/2" end mill runs about 764 RPM and 2.3 IPM.
- Are these values for HSS tools, drilling or turning?
- The end mill chart covers carbide end mills. The "Speeds by tool material" table adds published HSS, turning-insert and drilling rows for Inconel 713C (cast) where a source lists them (LittleMachineShop, Sandvik Coromant).
Sources
- Lakeshore Carbide – General Purpose End Mill Speeds & Feeds — “Monel & High Nickel Steel” row (SFM and chip load per tooth).
- Lakeshore Carbide speeds and feeds charts
- Sandvik Coromant catalogue, Milling cutting data, large engagement, inch values (pp. J482-J485), via BRW
- Sandvik Coromant catalogue, General turning: cutting speed recommendations by MC/CMC group, inch values (pp. A562-A564), via BRW
Starting values only. Adjust for rigidity, tool manufacturer data and machine.
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