41L40 Round Bar: Material Profile
41L40 retains the general strength and heat-treatment capability associated with 4140 while lead additions improve chip control and tool life.
Its use should be checked against welding, elevated-temperature, regulatory, and end-customer restrictions before specification.
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
- Improved alloy-steel machinability
- Good hardenability
- High strength potential
- Good wear resistance
Common Applications
- Machined shafts
- Hydraulic components
- Couplings and fittings
- High-volume alloy-steel 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.
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The material field is prefilled with 41L40 and remains editable. Add the specification, size, condition, quantity, processing, testing, required date, and ship-to location.
