한국 스틸 라운드 바 제조사
4340 alloy steel bar is used heavily in the aerospace industry due to its ultra-high strength. When heat treated it is known for its toughness while preserving good fatigue strength. For highly stressed parts it is excellent choice. It can be machined by all customary methods. This material is available in both vacuum melt (VM) and air melt (AM).
| SKU | Description | Manufacture Method | Diameter | Shape | Specification |
|---|---|---|---|---|---|
| 08199 | 4340 AIR MELT AMS6415 1.250DIA | Air Melt | 1.2500 | ROD/BAR ROUND | AMS6415 |
| 08146 | 4340 N&T VAC MELT AMS 6414 1.250DIA | VACUUM ARC REMELT | 1.2500 | ROD/BAR ROUND | AMS6414 |
| 07977 | 4340 AIR MELT AMS 6415 1.00 DIA | Air Melt | 1.0000 | ROD/BAR ROUND | AMS6415 |
| 08204 | 4340 AIR MELT AMS 6415 1.500DI | Air Melt | 1.5000 | ROD/BAR ROUND | AMS6415 |
| 08227 | 4340 AIR MELT AMS 6415 4.000DIA | Air Melt | 4.0000 | ROD/BAR ROUND | AMS6415 |
| 08169 | 4340 N&T VAC MELT AMS 6414 4.000DIA | VACUUM ARC REMELT | 4.0000 | ROD/BAR ROUND | AMS6414 |
| 08245 | 4340 AIR MELT AMS 6415 5.000DIA | Air Melt | 5.0000 | ROD/BAR ROUND | AMS6415 |
| 08174 | 4340 VAC MELT N&T AMS 6414 5.000DIA | VACUUM ARC REMELT | 5.0000 | ROD/BAR ROUND | AMS6414 |
| 11465 | 4340 AIR MELT CD AMS6415 .500DI | Air Melt | 0.5000 | ROD/BAR ROUND | AMS6415 |
| A6009 | 4340 AIR MELT AMS 6415 1.125DIA | HOT FINISHED | 1.1250 | ROD/BAR ROUND | AMS6415 |
| Minimum Properties | Tensile Strength , psi | 140,000 |
| Yield Strength, psi | 120,000 | |
| Elongation | 14% | |
| Hardness | Rc 32/39 | |
| Chemistry | Carbon( C) | .38 -.43% |
| Chrome (Cr) | 0.70- 0.90% | |
| Manganese (Mn) | 0.60-0.80% | |
| Molybdenum (Mo) | 0.20 - .30% | |
| Nickel ( Ni) | 1.65-2.0% | |
| Phosphorus (P) | 0.030% | |
| Sulphur (S) | 0.040% | |
| Silicon (Si) | 0.15- 0.35% |