
EN9 Carbon Steel Bars (070M55)
BS 070M55 · AISI 1055 · DIN C55 (1.0535) · JIS S55C · IS 55C8
EN9 Carbon Steel Bars (070M55) in ready stock at our Madurai godowns, normalised / hardened & tempered, Ø 16–250 mm. Band-saw cut to your sizes with mill test certificates on request.
I. Sizes & weights
Nominal weights at 7.85 g/cm³ · Ø 16–250 mm| Ø mm | kg / metre | kg / 6 m bar | |
|---|---|---|---|
| 16 | 1.58 | 9.47 | |
| 20 | 2.47 | 14.8 | |
| 25 | 3.85 | 23.1 | |
| 32 | 6.31 | 37.9 | |
| 40 | 9.86 | 59.2 | |
| 50 | 15.4 | 92.5 | |
| 63 | 24.5 | 146.8 | |
| 80 | 39.5 | 236.8 | |
| 100 | 61.7 | 369.9 | |
| 125 | 96.3 | 578.0 | |
| 160 | 157.8 | 947.0 | |
| 200 | 246.6 | 1,479.7 | |
| 250 | 385.3 | 2,312.0 |
II. Chemical composition (% by weight)
| Element | C | Si | Mn | S | P |
|---|---|---|---|---|---|
| Min | 0.50 | 0.05 | 0.50 | – | – |
| Max | 0.60 | 0.35 | 0.90 | 0.050 | 0.050 |
Typical standard ranges. Every mill lot ships with its own test certificate on request.
III. Mechanical properties
- Tensile
- 700–850 MPa
- Yield
- 430 MPa min
- Hardness
- 201–255 HB
- Elongation
- 14% min
IV. Supply condition
- Condition
- Normalised / hardened & tempered
- Machinability
- Fair
- Forms
- round, flat
- Cutting
- Band saw ±1 mm
- SKU
- SST-AES-03
V. Weigh it, then request it.
Locked to EN9EN9 · 7.85 g/cm³
W = π × D² × L × ρ ÷ 4,000,000 · ρ = 7.85 g/cm³ · rounded to 0.1 kg. Theoretical weight; actual mill weight can vary by ±2–3%.
Sprockets, cams, rolls, wear plates
About EN9
Can you cut EN9 to my sizes?
Yes. EN9 is band-saw cut to ±1 mm. Send piece sizes and quantities with your request; cutting is quoted with the material.
Is a mill test certificate provided with EN9?
An MTC is supplied with mill material on request, traceable to the heat number.
What sizes are in stock?
Ø 16–250 mm. For large tonnage, message us to reserve material.
What are the equivalents of EN9?
BS 070M55, AISI 1055, DIN C55 (1.0535), JIS S55C, IS 55C8. Equivalents are close matches; confirm against your drawing's specification.

