EN19.
EN19 is a chromium-molybdenum alloy steel, 709M40 under BS 970 and close to 42CrMo4.
Can’t find your grade? Send it — we’ll source it.
Our stockist and mill sourcing network extends beyond the grades listed here. Send rare grades, unusual forms and small-quantity requirements for sourcing review.
One enquiry gives us the details to check suitable sources across the network and help move your purchase forward. Share the exact grade, standard, form, size, quantity, delivery town and required date. We’ll confirm availability, minimum order quantity and lead time against your requirement.
Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request.
Quick details
| Material grade | EN19 (UNS G41400 (AISI 4140, nearest)) |
|---|---|
| Forms | Round bars |
| Usage / application | Heavy-duty shafts and spindles, Gears and crankshafts, High-tensile studs and bolts |
| Test certificate | Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request. |
| Business type | Stockist and supplier |
| Location | 231/235, Sant Sena Maharaja Marg, Mumbai, Maharashtra 400004, India |
Also searched as: EN19, 4140 (nearest), UNS G41400 (AISI 4140, nearest), W.Nr 1.7225 (42CrMo4), 709M40 (BS 970)
Product information for purchasing teams
EN19 is a chromium-molybdenum alloy steel, 709M40 under BS 970 and close to 42CrMo4. It is supplied hardened and tempered for high strength and toughness, and is used for heavily loaded shafts, gears, crankshafts, high-tensile bolts and hydraulic parts.
Exact specification, availability and commercial details are confirmed against your enquiry.
Product forms and standards
| Form | Standard |
|---|---|
| Round bars | BS 970 709M40 (EN19), hardened and tempered or annealed |
Related designation references
| Grade | UNS | Werkstoff Nr. | EN / BS | JIS |
|---|---|---|---|---|
| EN19 | G41400 (AISI 4140, nearest) | 1.7225 (42CrMo4) | 709M40 (BS 970) | SCM 440 |
Cross-standard references are not automatic substitutes. Confirm the exact product form, specification, composition, class and condition before accepting a substitution.
Chemical composition, %
| Grade | C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|
| EN19 | 0.36 – 0.44 | 0.10 – 0.40 | 0.70 – 1.00 | ≤ 0.035 | ≤ 0.040 | 0.90 – 1.20 | 0.25 – 0.35 |
Mechanical properties
| Property | Value |
|---|---|
| Tensile strength | About 850 – 1000 MPa in the common T condition |
| Hardness | About 248 – 302 HB in the T condition |
Values per BS 970 709M40. Properties depend on the ordered condition and section size.. Confirm against the current edition of the standard and your purchase specification.
Density: 7.85 g/cm³
Applications
- Heavy-duty shafts and spindles
- Gears and crankshafts
- High-tensile studs and bolts
- Hydraulic cylinder parts
Questions buyers ask
What are the equivalent grades of EN19?
EN19 is UNS G41400 (AISI 4140, nearest), Werkstoff 1.7225 (42CrMo4), EN 709M40 (BS 970) and JIS SCM 440. Cross-standard references are not automatic substitutes; verify the product form, standard, composition and condition.
In which forms is EN19 available?
Round bars to BS 970 709M40 (EN19), hardened and tempered or annealed.
What is the density of EN19?
About 7.85 g/cm³ (7,850 kg/m³).
Where is Steel Impex India located?
Steel Impex India is at 231/235, Sant Sena Maharaja Marg, Mumbai, Maharashtra 400004, India We supply across India.