About EN8D bright bars
EN8D is the most widely used medium carbon engineering steel in India. With roughly 0.40–0.45% carbon it offers good tensile strength in the drawn condition and responds to hardening & tempering and induction or flame hardening. Cold drawing improves strength, size accuracy and surface finish, so bars go straight onto the lathe.
RoundHexagon (A/F)SquareCut-to-lengthQ&T on request
Equivalents and typical composition
| Designation | Standard | C % | Mn % | Si % |
|---|---|---|---|---|
| EN8D | BS 970 · 080A42 | 0.40–0.45 | 0.70–0.90 | 0.10–0.40 |
| EN8 | BS 970 · 080M40 | 0.36–0.44 | 0.60–1.00 | 0.10–0.40 |
| 1045 | AISI / SAE | 0.43–0.50 | 0.60–0.90 | — |
| C45 | EN 10083 / DIN | 0.42–0.50 | 0.50–0.80 | ≤ 0.40 |
Typical ranges for reference. Each supply is backed by the mill test certificate.
Applications
- Shafts, axles, spindles and pins
- High-tensile bolts, studs and fasteners
- Gears, couplings and sprockets
- Induction-hardened parts and hydraulic rods (base material)
Frequently asked questions
Is EN8D the same as 1045 and C45?
Close equivalents — British, American and European designations of medium carbon steel with roughly 0.40–0.50% carbon.
EN8D or EN8M?
EN8M is the free-machining version (AISI 1144, 44SMn28) and machines much faster. EN8D is preferred where welding or uniform toughness matters. See EN8M →