ENGINEERING STEELS + ALLOYS
| Interlloy Grade | Nearest Related Specification | Typical Composition (%) & Properties | Description & Applications | |||||
| C | Si | Mn | Ni | Cr | Mo | |||
| 8620 | AS1444-1996 8620+8620H BS970-1955 EN362 BS970 Part 3-1991 805M20 ASTM A29/A29M-1991 8620 SAE/AISI 8620 |
.20 | .25 | .80 | .50 | .50 | .20 | General purpose case hardening steel for lightly stressed components. |
| 4317 | AS1444 - 1996 4317/4317H DIN17210:17CrNiMo6 18CrNiMo 7-6 W.Nr 1.6587 BS970: PART 3: 1991 820M17/822M17 BS970: 1955 - EN354/EN355 |
.18 | .20 | .50 | 1.60 | 1.65 | .30 | Case hardening steel for medium to high core strength applications. |
| EN36A | AS1444-1996 X3312 & X3312H BS970-1955 EN36A BS970 Part 3-1991 655M13 SAE 3310 SAE 9310 AISI E3310 AISI E9310 |
.13 | .25 | .50 | 3.4 | .80 | Case hardening steel for medium to high core strength applications, in relatively large sections with excellent toughness and fatigue resistance. | |
| EN39B | AS9315/EN39B DIN 15NiCrMo16-5 835M15 or 835H15 SNCM 815 JIS G 4103 |
0.12 | 0.10 | 0.25 | 3.90 | 1.00 | 0.15 | Carburising steel, generally supplied anealed to HB277 max. Carburised and heat treated it develops a hard wear resistance case if about Rc 60-63, a tough strong core with a typical tensile strength range 1000-1400MPz, in quite small to large sections. |
