Arihant class
Fuel enrichment
40% U-235
HEU
Arihant class is a nuclear-powered submarine operated by Indian Navy, powered by Indian PWR of about 83 MWt. Operating.
India's indigenous ballistic missile submarine, launched 2009 and commissioned 2016. Thirteen fuel assemblies of 348 rods each, at 40% enrichment, another point on the spectrum between the French and American approaches.
Propulsion
| Reactor | Indian PWR |
|---|---|
| Reactors per vessel | 1 |
| Thermal output | 83MWt |
| Fuel enrichment | 40% U-235HEU |
| Refuelling | not disclosed |
Vessel
| Category | submarine |
|---|---|
| Role | SSBN |
| Operator | Indian Navy |
| Country | India |
| Vessels in class | not stated |
| In service from | 2016 |
| Status | Operating |
Other submarines
| Class | Enrichment | Status |
|---|---|---|
| AUKUS submarines | HEU | Planned |
| Alfa class | HEU | Retired |
| Astute class | HEU | Operating |
| Borei class | HALEU | Operating |
| Dreadnought class | HEU | Under construction |
| Ohio class | HEU | Operating |
| Suffren class (Barracuda) | LEU | Operating |
| Type 093 and 094 (Shang and Jin) | LEU | Operating |
| USS Nautilus | HEU | Retired |
| Virginia class | HEU | Operating |
| Yasen class | HALEU | Operating |
Sources
- World Nuclear Association, Nuclear-Powered Ships · retrieved 2026-09-07