Stainless Steel 303 Round Bar Prices
Current 303 Stainless Steel Round Bar prices by dimension, with $/lb for cross-size comparison.
303-Cold Finished Round Bar currently ranges from $3.09/lb to $4.13/lb, up 1.4% over the last 7 days.
About 303|The free-machining stainless. Sulfur is added to break chips into short, manageable pieces instead of the bird's-nest razor wire you get with 304. Machines at roughly 78% machinability rating versus 304's 45%. You can run it faster, drills and taps go in clean, and tool life is significantly better. The tradeoff is reduced corrosion resistance and terrible weldability due to the sulfur content. If the part needs welding, don't use 303. If it doesn't, and you're doing any significant amount of machining, there's almost no reason to use 304 instead. Screw machine shops run this all day long for fittings, shafts, bushings, and valve components. Compare to 304 (better corrosion resistance and weldability but a bear to machine) and 416 (even easier to machine but less corrosion resistant).
About Round Bar|The default starting stock for lathe work. It gets turned, bored, and parted into shafts, pins, bushings, spacers, and just about anything round.
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Raw Material Market Prices
2.4%30d
Nickel
$8.53/lb
Nickel is a primary cost driver for stainless steel and superalloys.
Raw Material Market Prices
2.9%30d
Steel HRC
$1,079/short ton
$0.54/lb
Hot Rolled Coil (HRC) is the benchmark for raw steel prices.
Show additional sizes(16 products, retail pricing)
Diameter
Diameter | $/lb | $/ft | 7d |
|---|---|---|---|
| 5/16" | $3.19 | $0.83 | 1.6% |
| 3/8" | $3.19 | $1.20 | 1.6% |
| 7/16" | $3.19 | $1.63 | 1.6% |
| 29/64" | $3.19 | $1.79 | 1.6% |
| 1/2" | $3.19 | $2.13 | 1.6% |
| 9/16" | $3.19 | $2.70 | 1.6% |
| 5/8" | $3.19 | $3.33 | 1.6% |
| 11/16" | $3.19 | $4.03 | 1.6% |
| 3/4" | $3.19 | $4.79 | 1.6% |
| 13/16" | $3.19 | $5.62 | 1.6% |
| 7/8" | $3.19 | $6.52 | 1.6% |
| 15/16" | $3.19 | $7.49 | 1.6% |
| 1" | $3.19 | $8.52 | 1.6% |
| 1-1/16" | $3.19 | $9.62 | 1.6% |
| 1-1/8" | $3.19 | $10.78 | 1.6% |
| 1-3/16" | $3.19 | $12.01 | 1.6% |
| 1-1/4" | $3.12 | $13.02 | 1.3% |
| 1-5/16" | $3.12 | $14.35 | 1.3% |
| 1-3/8" | $3.12 | $15.75 | 1.3% |
| 1-7/16" | $3.14 | $17.33 | 1.6% |
| 1-1/2" | $3.12 | $18.75 | 1.3% |
| 1-9/16" | $3.12 | $20.34 | 1.3% |
| 1-5/8" | $3.12 | $22.00 | 1.3% |
| 1-11/16" | $3.12 | $23.72 | 1.3% |
| 1-3/4" | $3.12 | $25.52 | 1.3% |
| 1-13/16" | $3.12 | $27.36 | 1.3% |
| 1-7/8" | $3.12 | $29.29 | 1.3% |
| 1-15/16" | $3.12 | $31.26 | 1.3% |
| 2" | $3.12 | $33.32 | 1.3% |
| 2-1/8" | $3.12 | $37.63 | 1.3% |
| 2-1/4" | $3.12 | $42.18 | 1.3% |
| 2-3/8" | $3.12 | $46.99 | 1.3% |
| 2-1/2" | $3.12 | $52.07 | 1.3% |
| 2-5/8" | $3.12 | $57.41 | 1.3% |
| 2-3/4" | $3.12 | $62.99 | 1.3% |
| 2-7/8" | $3.12 | $68.86 | 1.3% |
| 3" | $3.12 | $74.97 | 1.3% |
| 3-1/8" | $3.09 | $82.19 | 1.3% |
| 3-1/4" | $3.09 | $88.90 | 1.3% |
| 3-1/2" | $3.09 | $101.07 | 1.3% |
| 3-5/8" | $3.09 | $110.62 | 1.3% |
| 3-3/4" | $3.09 | $116.03 | 1.3% |
| 4" | $3.09 | $132.04 | 1.3% |
| 4-1/2" | $3.25 | $179.27 | 1.6% |
| 5" | $4.13 | $281.25 | 1.5% |
| 5-1/2" | $3.66 | $301.58 | 1.4% |
| 6" | $3.66 | $358.94 | 1.4% |
| 8" | $4.10 | $714.79 | 1.5% |
48 items
Prices last updated May 2026
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