4140 Alloy Steel Square Bar: 3 in Thick, +0.000 in/-0.006 in, 3 in x 6 ft Nominal Size (WxL), Mill
Item: 782M59,
MFR: 40S3-72,
Brand: GRAINGER APPROVED
| Material Grade | 4140 |
| Shape | Square Bar |
| Thickness | 3 in |
| Thickness Tolerance | +0.000 in/-0.006 in |
| Overall Width | 3 in |
| Overall Length | 6 ft |
| Fabrication | Cold Finished |
| Mechanical Finish | Mill |
| Rockwell Hardness | Not Rated |
| Brinell Hardness | 187 |
| Yield Strength | 60,000 psi |
| Heat Treatable | Yes |
| Heat Treatment | Annealed |
| Standards | ASTM A322, ASTM A304, ASTM A331 |