Carbon Steel Round Bar 1-3/8" 4140 Hot Rolled Heat Treated Stress Relieved
It's not always on the shelf, so we price it on request. Tell us the size you're after and we'll confirm price and lead time. If we need to bring in stock, it can take a little longer.
Description
Carbon Steel Round Bar 4140 HR HTSR is a high-strength alloy steel round bar that has been hot-rolled and heat-treated to provide superior tensile strength, wear resistance, and fatigue resistance. Known for its toughness and ability to withstand high-stress conditions, it is commonly used in demanding applications such as shafts, gears, and other critical components in the aerospace, automotive, and industrial sectors. This round bar offers excellent performance where durability and high strength are essential.
Specifications
| Material | Carbon Steel |
| Grade/Alloy | 4140 |
| Shape | Round Bar |
| Diameter | 1.375 in |
| Max Length | |
| Weight | /ft |
| MTR | Available Upon Request |
Characteristics
| Weldability | Good |
| Machining | Good |
| Bending/Forming | Fair |
| Wear Resistance | Excellent |
| Corrosion | Fair |
Shipping
Pickup In-Store
- Orders before 3pm ready next business day
- Same-day? Call the team
Standard Delivery
- Ships next business day (orders before 3pm)
- Shipping calculated at checkout
Cash on Delivery
- Available for established business accounts
- Courier collects payment on delivery
About 4140 steel
4140 is chromoly, a chromium-molybdenum alloy steel that heat treats to high strength and toughness. It's the grade for parts that take serious load or shock: shafts, axles, gears, couplings, and tooling. You machine it in the annealed state, then harden and temper for the strength the part needs.
Read the full 1018 vs A36 vs 1045 steel guide