SAE 4340 Round Bars
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SAE 4340 Round Bars Suppliers, Dealers & Stockists
Nova Steel Corporation is one of the leading SAE 4340 Round Bars Manufacturers, Supplier, and Dealer in India. Our high-quality range of SAE 4340 Round Bars is exclusively designed for steel factories, petrochemical industry, fire protection systems, chemical industries, shipping/shipment industries, etc. SAE 4340 Round Bars includes nickel for higher overall hardness and superb through hardening. SAE 4340 is alloyed for as-rolled core strength but can be readily carburized.
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EQUIVALENT GRADES FOR AS AISI / SAE 4340 ROUND BAR
| Standard | AISI / SAE 4140 |
| UNS | – |
| BS 970 | 708M40, 708A42, 709M40, En19, En19C |
| UNI | 41CrMo4, 38CrMo4 (KB), G40 CrMo4, 42CrMo4 |
| WERKSTOFF NR. | 41CrMo4, 42CrMo4, 42CrMoS4, 43CrMo4 |
| JIS | SCM 440, SCM 440H, SNB 7, SCM 4M, SCM 4 |
| EN # | 1.7223, 1.7225, 1.7227, 1.3563 |
| EN name | 42CrMo4 |
SAE 4340 ROUND BAR MECHANICAL PROPERTIES
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 655 MPa | 95000 psi |
| Bulk modulus (typical for steel) | 140 GPA | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPA | 11600 ksi |
| Yield strength | 415 MPa | 60200 psi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Elongation at break (in 50 mm) | 25.70% | 25.70% |
| Hardness, Knoop (converted from Brinell hardness) | 219 | 219 |
| Hardness, Brinell | 197 | 197 |