Grade 202 Uns S20200 Perforated Sheets is a precipitation hardened alloy. Due to the use of a precipitation hardening process, there are some improvements noted in the alloy. This Uns S20200 Perforated Sheets alloy is referred to as a kind of stainless steel whose major alloying contents include chromium, nickel, and manganese, in that order. The properties of Uns S20200 Perforated Sheets are reminiscent of that of austenitic grade 302.
Chemical Stucture of 2b Finish Uns S20200 Perforated Sheets
| Element | Content (%) |
| Iron, Fe | 68 |
| Chromium, Cr | 17- 19 |
| Manganese, Mn | 7.50-10 |
| Nickel, Ni | 43620 |
| Silicon, Si | ≤ 1 |
| Nitrogen, N | ≤ 0.25 |
| Carbon, C | ≤ 0.15 |
| Phosphorous, P | ≤ 0.060 |
| Sulfur, S | ≤ 0.030 |
While the Uns S20200 Perforated Sheets alloy is not suited to applications at elevated temperatures. And hence, suppliers do not recommend using the Uns S20200 Perforated Sheets in applications involving brine, seawater, or even applications whose proximity to the sea is close. The suitability of this grade is in those industries where the Uns S20200 Perforated Sheets are not exposed to pollutive gases either from the factory or from the atmosphere. Using a protective finish could be an effective remedy for this issue.
Uns S20200 Perforated Sheets Imperial Dimensions
| Plate Surface finish | Gauge (in) | Width (max in) |
|---|---|---|
| 2B – Cold rolled, heat treated, pickled, skin passed Plate | 10–24 | 72* |
| 2D – Cold rolled, heat treated, pickled plate | 12–24 | 60 |
| BA Mexinox only | 18–28 | 48 |
| Polished Sheet (not brushed) | 11–24 | 60 |
| Temper rolled Sheet Mexinox only | 13–29 | 48 |
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