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Deep draw in Stainless steel 316
Stainless steel 316 is a proven choice for deep draw: pitting resistance equivalent number (pren) of about 24, versus about 19 for 304. On a representative drawn cup at 50,000 pieces it estimates at about $0.84 per part plus $30,903 tooling, with a lead time of 6–10 weeks. Typical tolerance is ±0.002–0.005 in (±0.05–0.13 mm) typical.
- Per part
- $0.84
- Tooling
- $30,903
- Lead time
- 6–10 weeks
Price it in 316 SS
Drawn cup · Deep draw
Order total $73,119
- Tooling
- $30,903
- one-time, spread over the order
- Piece price
- $0.84
- before setup + tooling
- Lead time
- 6–10 weeks
- to first production
Size
Drag a row to adjust · click to type
Inside diameter42.042.0 mm
Depth55.055.0 mm
Material thickness0.800.80 mm
Quantity
Price per part falls as volume rises
Exact quantity5000050000 pcs
Material
Design checks pass
Open in builderBudgetary estimate for a representative part. Firm quotes come from principals after drawing review.
316 SS vs other deep draw materials
The same drawn cup at 50,000 pieces, priced in every material the process runs. 1008 CRS is the lowest all-in cost.
| Material | Per part | All-in | Weight | Tensile |
|---|---|---|---|---|
| Steel 1008 cold-rolled (CRS) | $0.22 | $0.84 | 59 g | 330 MPa |
| Aluminum 5052-H32 | $0.28 | $0.91 | 20 g | 228 MPa |
| Stainless steel 430 | $0.41 | $1.04 | 58 g | 483 MPa |
| Stainless steel 304 | $0.65 | $1.28 | 60 g | 505 MPa |
| Stainless steel 316 | $0.84 | $1.46 | 60 g | 580 MPa |
| Copper C110 (ETP) | $1.63 | $2.26 | 67 g | 290 MPa |
316 SS at a glance
- Tensile strength
- 580 MPa82th pct
- Yield strength
- 290 MPa55th pct
- Density
- 8 g/cm³89th pct
- Max service temp
- 925 °C97th pct
- Elongation
- 50 %70th pct
- Relative cost
- $$$$$
Bars are relative to the strongest, densest or hottest material in the SSG library. Percentile vs all 48 materials.
Strengths
- Pitting resistance equivalent number (PREN) of about 24, versus about 19 for 304
- Standard for marine hardware, pharmaceutical and food processing equipment
- 316L variant welds without sensitization
- Better strength and creep resistance than 304 at high temperature
Watch for
- Still pits in warm seawater and tight crevices; use duplex 2205 or super-austenitic grades
- About 36% machinability; work-hardens
- Costs about one-third more than 304
- Galls in threaded and sliding contact
Finishes for this combination
Deep draw design rules
At least 4× material thickness
Bottom (punch) radius
5–10× material thickness
Flange (die) radius
First draw no more than 40–45% diameter reduction; redraws 20–30%
Limit reduction per draw
At least 3× material thickness; larger is cheaper
Rectangular corner radius
Expect 10–20% thinning near the bottom radius
Allow for wall thinning
ASTM A1008 DS or DDS steel, or annealed stainless
Specify drawing-quality material
Questions
How much does deep draw in 316 SS cost?
For a representative part (deep drawn cup ø42 mm id × 55 mm deep, 0.8 mm wall, 4 mm flange), SSG's estimator gives about $0.84 per part at 50,000 pieces, plus about $30,903 one-time tooling. All-in with tooling and setup that is $1.46 per part. It is budgetary; principals quote firm prices from your drawing.
Is 316 SS a good material for deep draw?
It is when you need pitting resistance equivalent number (pren) of about 24, versus about 19 for 304 and standard for marine hardware, pharmaceutical and food processing equipment. Watch for still pits in warm seawater and tight crevices; use duplex 2205 or super-austenitic grades. Of 6 materials run in deep draw, it ranks 5 on all-in cost for the same part.
What finishes work on 316 SS deep draw parts?
Common options are bead blasted, vibratory deburr (tumbling), passivation, laser marking. The builder adds each finish's lot charge, per-part cost and days to the estimate.
What tolerance can deep draw hold in 316 SS?
Typical capability is ±0.002–0.005 in (±0.05–0.13 mm) typical. Tighter tolerances are possible on called-out features at added cost; specify them on the drawing rather than as a blanket note.
Quote deep draw in 316 SS.
Upload your CAD or start from a template. The DFM check applies the rules above to your geometry.