4320 Round Bar: Material Profile
4320 combines nickel, chromium, and molybdenum for deep hardenability, impact resistance, and fatigue performance after case hardening.
The order should define the governing specification, condition, case requirements, and mechanical properties.
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
- Excellent case-hardening response
- High core toughness
- Good fatigue resistance
- Deep alloy hardenability
Common Applications
- Aircraft and automotive gears
- Pinions and shafts
- Heavy-duty bearings
- Power-transmission components
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 4320 Round Bar
We quote 4320 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.
