4142 Round Bar: Material Profile
4142 provides a slightly different carbon range than 4140 and should be ordered to the exact specification shown on the drawing or purchase requirement.
It may be supplied annealed, normalized, cold-finished, or quenched and tempered depending on downstream processing.
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
- Good fatigue resistance
- Broad heat-treatment response
Common Applications
- Drive components
- Shafts and couplings
- Tooling and holders
- Oilfield and heavy-equipment 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 4142 Round Bar
We quote 4142 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.
