한국 스틸 라운드 바 제조사
8740 is a Nickel Chrome Moly produced for case hardening. It can often be found in aerospace applications, when wear resistance, toughness, and strength are needed.
| SKU | Description | Manufacture Method | Diameter | Shape | Specification |
|---|---|---|---|---|---|
| A5649 | 8740 AMS6322 HR ANN 1.250 DIA | Air Melt | 1.2500 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| A5903 | 8740 AMS6322 HR ANN LCS 1.00 DIA | HOT ROLLED | 1.0000 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| 50745 | 8740 AMS 6322 HR ANN LCS 1.500 DIA | Air Melt | 1.5000 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| 50756 | 8740 AMS 6322 HR ANN LCS 4.00 DIA | Air Melt | 4.0000 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| 50747 | 8740 AMS 6322 LCS 2.00 DIA | Air Melt | 2.0000 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| 50750 | 8740 AMS 6322 HR ANN LCS 2.250 DIA | Air Melt | 2.2500 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| 50910 | 8740 AMS 6322 HR ANN LCS 3.25 DIA | Air Melt | 3.2500 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| 50752 | 8740 AMS 6322 HR ANN LCS 3.00 DIA | Air Melt | 3.0000 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| 75224 | 8740 AMS 6322 HR ANN LCS 3.500 DIA | Air Melt | 3.5000 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| A2348 | 8740 AMS 6322 HR ANN LCS 5.50 DIA | Air Melt | 5.5000 | ROD/BAR ROUND | AMS6322 R ASQR-01 |
| Minimum Properties | Tensile Strength , psi | 167,000 |
| Yield Strength, psi | 152,000 | |
| Elongation | 15% | |
| Hardness | bhn 229 | |
| Chemistry | Carbon( C) | .38 -.43% |
| Chrome (Cr) | 0.40-0.60 % | |
| Manganese (Mn) | 0.75-1.00 % | |
| Molybdenum (Mo) | 0.20 - .30% | |
| Nickel ( Ni) | 0.40 -0.70% | |
| Phosphorus (P) | .035% max | |
| Sulphur (S) | 0.04% max | |
| Silicon (Si) | 0.15- 0.30% |