Standard: EN 10202 · ASTM A623/A623M · JIS G3303 formerly EN 10203 (T50–T65 designations)
Temper describes the hardness and strength of tinplate and blackplate, which decide how a sheet can be formed. ASTM and JIS still grade single-reduced plate by a Rockwell HR30T temper number (T-1 softest to T-5) and double-reduced plate by DR numbers; EN 10202 grades by proof strength — TS for the softer grades and TH for the harder ones, with the number the nominal proof strength in MPa.
The equivalents are approximate: the standards test different properties, so the same plate may not meet both.
| EN 10202 | Former EN 10203 | ASTM A623 / JIS G3303 | HR30T aim | Typical uses |
|---|---|---|---|---|
| TS230 | T50 | T-1 | 49 | Deep-drawn parts, oil filters |
| TS245 | T52 | T-2 | 53 | Industrial cans, drawn parts |
| TS260 | T55 | T-2.5 | 55 | Aerosol valves, general cans |
| TS275 | T57 | T-3 | 57 | Can bodies, aerosol tops, crown corks |
| TS290 | T59 | T-3.5 | – | Industrial cans |
| TH415 | T61 | T-4 | 61 | Can ends, crown corks, three-piece bodies |
| TH435 | T65 | T-5 | 65 | Ends, tabs, drawn cans |
| TH520 | DR520 | – | – | Three-piece bodies, easy-open ends |
| TH550 | DR550 | DR-8 | 73 | Three-piece bodies, ends |
| TH580 | DR580 | – | – | Caps, drawn cans, ends |
| TH620 | DR620 | DR-9 | 76 | Tabs, caps, ends |
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