Penn Stainless stocks Flat & Expanded sheet in 304, 304/L and 316/L in multiple gauges and pattern sizes. We can also produce Flat & Expanded Stainless from our large inventory of stainless sheet, including grades 309, 310, 321, 347 . In 400 series stainless we can supply Flat & Expanded metals in 409, 410 and 430. Penn Stainless will process your Flat & Expanded order. Need 6 pieces of ¼-18 cut to 12” square or something similar? No problem. Please review of full catalog for standard items. If you do not see your requirement please contact us.
| Gauge | Open Area in % | SWO | LWO | 304 | 304L | 316/L |
| 1/4"-18 | 28.0 | 0.0800 | 0.6600 | X | D | D |
| 1/2"-18 | 60.0 | 0.3125 | 1.0000 | X | D | D |
| 1/2"-16 | 60.0 | 0.3125 | 1.0000 | X | D | D |
| 1/2"-13 | 45.0 | 0.2400 | 0.9150 | X | D | X |
| 3/4"-18 | 75.0 | 0.7500 | 1.8125 | X | D | D |
| 3/4"-16 | 75.0 | 0.7500 | 1.8125 | X | X | D |
| 3/4"-13 | 75.0 | 0.6250 | 1.7500 | X | X | D |
| 3/4"-9 | 61.0 | 0.5625 | 1.6975 | X | X | D |
| 1-1/2"-16 | 80.0 | 1.0625 | 2.7500 | X | X | X |
| 1-1/2"-13 | 80.0 | 1.0000 | 2.6250 | X | X | D |
| 1-1/2"-9 | 75.0 | 0.9375 | 2.6250 | X | X | D |
X = Stock Item // D = 7-10 work days for typical delivery
