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 a Quote for 4142 Round Bar
The material field is prefilled with 4142 and remains editable. Add the specification, size, condition, quantity, processing, testing, required date, and ship-to location.
