Stainless Steel 304 CNC Machining Cost Estimator
Calculate machining costs for 304 stainless steel parts, accounting for work hardening, coolant lubrication, reduced cutting speeds, and insert wear.
Material & Specification Presets
Material & Job Parameters
Parameter ControlsAuto-Extract Mesh Volume (.STL)
In-Browser WASM ParserDrop 3D .STL file here or click to browse
Pure client-side mesh processing • 0 file upload server latency
Raw material spool/resin bottle cost
Finished model net mass including support waste
Total machine execution time
File slicing, bed prep & post-processing labor
Commercial shop margin
Total Internal Direct Cost:
$0.079 / gram • Total Energy: 0.97 kWh
Recommended Quote Price
$15.90
+$4.12
Cost Composition Breakdown
Total: $11.78Comprehensive Guide: Stainless Steel 304 CNC Machining Cost Estimator
304 Stainless Steel offers high corrosion resistance but work-hardens rapidly under cutting friction, requiring lower surface feet per minute (SFM) and rigid high-torque machine setups.
Mathematical Formula Breakdown
Total Cost = Stock Material + [(Machining Mins / 60) × Hourly Rate] + Insert Wear + Amortized Setup.
Industry Pricing Benchmarks
304 Stainless raw bar stock averages $6.50–$8.50/kg. Machining rates average $100–$160/hr due to slower cutting speeds.
Optimization Strategies
- Maintain constant chip load to prevent burnishing and work hardening of the material surface.
- Use high-pressure through-spindle coolant to flush chips and reduce thermal shock on carbide inserts.
Frequently Asked Questions
Why is stainless steel 304 more expensive to machine than aluminum?
Lower cutting speeds (SFM) double the machining cycle time and increase carbide tool insert wear.