SAE 4140 Steel Billets
AISI / SAE 4140 chromium-molybdenum steel. The American-designation counterpart of EN19 and 42CrMo4. Strong, tough and easy to heat treat.
SAE 4140 chemical composition
| C | 0.38 – 0.43 % |
|---|---|
| Si | 0.15 – 0.35 % |
| Mn | 0.75 – 1.00 % |
| Cr | 0.80 – 1.10 % |
| Mo | 0.15 – 0.25 % |
| P | 0.035 max % |
| S | 0.040 max % |
Indicative ranges from the common grade standard. The final analysis is as per the order and the heat test certificate.
Equivalent grades
EN19 / 709M40 · 42CrMo4 / 1.7225 · SCM440 (JIS)
Equivalents are approximate. See the grade equivalents guide.
SAE 4140 billets and blooms
4140 billets and blooms are one of the most traded alloy steel products for forging and machining.
Kesari Alloys supplies SAE 4140 as continuous cast billets and blooms from 100 × 100 to 250 × 250 mm and 200 mm round, in lengths up to 12 metres. See the billet size chart for weight per metre.
Heat treatment: Hardened and tempered. Used widely in quenched and tempered form.
Typical uses of SAE 4140
- Drill collars and oil field tubulars
- Crankshafts and axles
- Gears and shafts
- Fasteners and flanges
Industries: forging, sugar mill shafts and rollers, automotive forgings, oil field equipment, fasteners and bolts, heavy engineering.
Related grades
SAE 4140 questions
What is SAE 4140 steel used for?
SAE 4140 is used for drill collars and oil field tubulars, crankshafts and axles, gears and shafts, fasteners and flanges.
What is the equivalent of SAE 4140?
EN19 / 709M40 · 42CrMo4 / 1.7225 · SCM440 (JIS). Equivalents are approximate, so check the limits in your specification.
Does Kesari Alloys supply SAE 4140 billets?
Yes. SAE 4140 is available as continuous cast billets and blooms (100 to 250 mm and 200 mm round, up to 12 m). Send the size, length, quantity and standard to info@ksl.in for a quotation.