This specification covers hot-wrought alloy steel bars.Bar applications include forging, heat treating, cold drawing,machining and many structural components.The bars shall be furnished in the grades specified. Sections and sizes of bar steel available are covered in Specification A 29/A 29M. Hot-wrought alloy steel bars are produced in cut lengths and coils; the manufacturer should be consulted regarding sections and sizes available in coils,produced to a chemical composition.Some applications may require superior surface quality, or special chemical restrictions, metallurgical characteristics, heat treatment, or surface finishes which the purchaser may obtain by designating one or more of the available Supplementary Requirements.
| UNS Designation | Grades |
|---|---|
| G13300 | 1330 |
| G13350 | 1335 |
| G13400 | 1340 |
| G13450 | 1345 |
| G40230 | 4023 |
| G40240 | 4024 |
| G40270 | 4027 |
| G40280 | 4028 |
| G40370 | 4037 |
| G40470 | 4047 |
| G41180 | 4118 |
| G41200 | ... |
| G41210 | ... |
| G41300 | 4130 |
| G41370 | 4137 |
| G41400 | 4140 |
| G41420 | 4142 |
| G41450 | 4145 |
| G41470 | 4147 |
| G41500 | 4150 |
| G41610 | 4161 |
| G43200 | 4320 |
| G43400 | 4340 |
| G43406 | E4340 |
| G46150 | 4615 |
| G46200 | 4620 |
| G46210 | 4621 |
| G46260 | 4626 |
| G47150 | ... |
| G47200 | 4720 |
| G48150 | 4815 |
| G48170 | 4817 |
| G48200 | 4820 |
| G51170 | 5117 |
| G51200 | 5120 |
| G51300 | 5130 |
| G51320 | 5132 |
| G51350 | 5135 |
| G51400 | 5140 |
| G51500 | 5150 |
| G51550 | 5155 |
| G51600 | 5160 |
| G51986 | E51100 |
| G52986 | E52100 |
| G61180 | 6118 |
| G61500 | 6150 |
| G86150 | 8615 |
| G86170 | 8617 |
| G86200 | 8620 |
| G86220 | 8622 |
| G86250 | 8625 |
| G86270 | 8627 |
| G86300 | 8630 |
| G86370 | 8637 |
| G86400 | 8640 |
| G86420 | 8642 |
| G86450 | 8645 |
| G86550 | 8655 |
| G87200 | 8720 |
| G87400 | 8740 |
| G88220 | 8822 |
| G92590 | 9259 |
| G92600 | 9260 |
| G50441 | 50B44 |
| G50461 | 50B46 |
| G50501 | 50B50 |
| G50601 | 50B60 |
| G51601 | 51B60 |
| G81451 | 81B45 |
| G94171 | 94B17 |
| G94301 | 94B30 |