4145 Round Bar: Material Profile
4145 provides more hardness potential than lower-carbon 41XX grades while retaining alloy toughness and hardenability.
Orders typically state a heat-treated condition and mechanical-property range.
Purchase to the controlling ASTM, SAE, AMS, or customer specification. Section size, supply condition, mechanical properties, surface limits, testing, and heat/lot traceability can change the acceptable material and processing route.
Key Characteristics
- High strength potential
- Good hardenability
- Wear resistance
- Good fatigue performance
Common Applications
- Heavy-duty shafts
- Oilfield components
- Gears and couplings
- High-load machinery parts
Specification Requirements
Identify the governing specification and revision, product form, section size, condition, mechanical properties, testing, and certification requirements. The purchase specification and material certification govern the order.
Request Pricing for 4145 Round Bar
We quote 4145 for manufacturers and commercial buyers. Requirements of 3,000–10,000 lb are welcome, along with multi-ton and truckload programs.
We are not a retail metal store. Small personal-use, typical single-bar, and cut-piece orders are generally not a fit. The material field is prefilled and remains editable; add the specification, size, condition, total weight, processing, testing, required date, and ship-to location.
