| 1.2083 (X40Cr14) |
| 1.2738 (40CrMnNiMo8-6-4) |
| 1.2311 (40CrMnMo7) |
| 1.2312 (40CrMnMoS8-6) |
| 1.2316 (X38CrMo16) |
Special education can continue be immensely expensive, amounting to tens of billions of dollars annually and as much as 20 percent of public schools’ general operating budgets, justice souter wrote