| AISI 4135 | |
 | |
| Category | Steel |
| Class | Alloy steel |
| Type | Standard |
| Common Names | Chromium-molybdenum steel |
| Designations |
France: AFNOR 35 CD 4 , AFNOR 35 CD 4 TS Germany: DIN 1.7220 Italy: UNI 34 CrMo 4 KB , UNI 35 CrMo 4 , UNI 35 CrMo 4 F Japan: JIS SCCrM 3 , JIS SCM 1 Sweden: SS 2234 United Kingdom: B.S. 708 A 37 United States: AMS 6365C , AMS 6365E , AMS 6372C , AMS 6372D , ASTM A355 , ASTM A519 , ASTM A711 , MIL SPEC MIL-S-16974 , MIL SPEC MIL-S-18733 , SAE J404 , SAE J412 , SAE J770 , UNS G41350 |
| Composition | |
| |
| Element | Weight % |
| C | 0.33-0.38 |
| Mn | 0.70-0.90 |
| P | 0.035 (max) |
| S | 0.04 (max) |
| Si | 0.15-0.30 |
| Cr | 0.30-1.10 |
| Mo | 0.15-0.25 |
| Mechanical Properties | |
| |
