EN Series Round Bars (EN8, EN9, EN18, EN19).
Carbon and alloy engineering steel round bars to BS 970 (EN series), bright or black, for shafts, gears, axles and machined components.
Quick details
| Standard | BS 970 (EN series) |
|---|---|
| Diameter | 6 mm to 300 mm |
| Forms | Bright (cold-drawn, turned, ground) and black (hot-rolled or forged) |
| Condition | Annealed, normalised, or hardened and tempered |
| Documents | Mill test certificate |
| Business type | Stockist and supplier |
| Location | Kumbharwada, Mumbai 400004, Maharashtra |
Product information for purchasing teams
The EN numbers come from the old British Standard BS 970 and are still the everyday names in Indian engineering. EN8 and EN9 are plain carbon steels; EN18 and EN19 add chromium (and molybdenum in EN19) for higher strength after hardening and tempering.
Specifications
| Standard | BS 970 (EN series) |
|---|---|
| Diameter | 6 mm to 300 mm |
| Forms | Bright (cold-drawn, turned, ground) and black (hot-rolled or forged) |
| Condition | Annealed, normalised, or hardened and tempered |
| Documents | Mill test certificate |
Chemical composition, %
| Grade | BS 970 | C | Si | Mn | Cr | Mo |
|---|---|---|---|---|---|---|
| EN8 | 080M40 | 0.36 – 0.44 | 0.10 – 0.40 | 0.60 – 1.00 | – | – |
| EN9 | 070M55 | 0.50 – 0.60 | 0.10 – 0.40 | 0.50 – 0.90 | – | – |
| EN18 | 530M40 | 0.36 – 0.44 | 0.10 – 0.35 | 0.60 – 0.90 | 0.90 – 1.20 | – |
| EN19 | 709M40 | 0.36 – 0.44 | 0.10 – 0.40 | 0.70 – 1.00 | 0.90 – 1.20 | 0.25 – 0.35 |
Typical uses
| Grade | Typical use |
|---|---|
| EN8 | General shafts, studs, bolts and pins |
| EN9 | Gears, sprockets and wear parts that are flame or induction hardened |
| EN18 | Gears, crankshafts and heavier shafts |
| EN19 | Highly stressed shafts, high-tensile bolts, hydraulic parts |
Values per BS 970. Mechanical properties depend on section size and heat treatment. Confirm against the current edition of the standard and your purchase specification.
Applications
- Shafts and axles
- Gears and sprockets
- Studs, bolts and pins
- Hydraulic and machine parts
What to include in your RFQ
Share the grade and standard, thickness or diameter, width and length or cut sizes, quantity, delivery location and the test certificate you need.
Questions buyers ask
Which standard covers EN series round bars?
BS 970 (EN series).
What sizes of EN series round bars are available?
Standard: BS 970 (EN series). Diameter: 6 mm to 300 mm. Forms: Bright (cold-drawn, turned, ground) and black (hot-rolled or forged). Availability is confirmed for each enquiry.
What should I send for a quotation?
Share the grade and standard, thickness or diameter, sizes or cut drawing, quantity, delivery location and the test certificate you need.
Where is Steel Impex India located?
Steel Impex India is at 231/235, Sant Sena Maharaja Marg, 2nd Kumbharwada, Mumbai 400004, and supplies across India.