Which alloy steel round bar grades are available?
Published grade families include EN19, EN24, EN31 and 20MnCr5. Grade, diameter and supply-condition availability is confirmed for each enquiry.
Choosing an Alloy Steel Round Bar Grade
Jain Steels Group is an alloy steel round bar manufacturer and supplier in India for automotive, forging, engineering and machinery applications. Available alloy-steel grades include EN19, EN24, EN31 and 20MnCr5, with final product form, condition and availability confirmed per enquiry. This category page helps buyers compare grade intent before opening the relevant technical discussion.
Grade selection should follow the component drawing, applicable standard, loading, heat-treatment plan and manufacturing route. EN19 and 20MnCr5 have dedicated pages because their search and application intent differs. EN24 and EN31 availability is confirmed against the required condition and specification rather than represented by generic property tables.
Share Your RequirementPublished Supply Information
Published information is a general supply reference. The final quotation and approved purchase specification control every order.
| Product category | Round Bar Category |
|---|---|
| Grade availability | EN19, EN24, EN31 and 20MnCr5; other alloy grades on confirmation |
| Published size information | 25 mm to 66 mm published round-bar diameter range |
| Length and tolerance | Confirmed against the drawing, standard and purchase requirement |
| Supply condition | Confirmed against the grade, downstream process and applicable standard |
| MOQ and lead time | Confirmed after grade, size, quantity and destination review |
Choose by Grade and Component Route
An alloy steel round bar should be ordered to a named grade and governing standard. Similar grade designations are not automatically interchangeable, so the drawing, heat-treatment route and acceptance values must remain part of the purchase specification.
| Grade pathway | Typical buying consideration | Next page |
|---|---|---|
| EN19 / AISI 4140 enquiry | State the exact standard, condition, diameter, heat treatment and required properties; do not rely on an assumed one-to-one equivalence. | Review EN19 and 4140 ordering guidance |
| 20MnCr5 | Define carburising route, core-property requirement, machining allowance and inspection. | Review 20MnCr5 round bars |
| EN24 or EN31 | Provide the applicable standard, condition, size and end-use requirement for availability review. | Submit technical requirement |
Applications
Automotive components
Match the grade, cleanliness, heat treatment and mechanical requirements to the component drawing.
Forged engineering parts
Define forging route, machining allowance, surface acceptance and internal-soundness inspection.
Shafts, gears and drive components
State loading, final hardness or strength requirement, heat treatment and dimensional tolerances.
Machinery and industrial equipment
Specify the applicable standard, diameter, condition, testing and material certificate needs.
Testing, Traceability & Documentation
Inspection and documentation can cover order-specific chemistry, dimensions, mechanical requirements, traceability and material test certificates.
Use the quality assurance page for the overall inspection approach and the technical data page for published size references.
Requirement ReviewGrade, standard, size, quantity and application
Inspection ScopeTests and acceptance criteria agreed before order confirmation
TraceabilityIdentification and documentation requirements stated in the purchase specification
How to Request an Accurate Quote
Use the child grade pages for EN19 and 20MnCr5, or send a drawing and standard for EN24, EN31 or another alloy requirement. Include size, condition, quantity and destination.
- Grade and applicable standard
- Size, length, tolerance and surface or supply condition
- Quantity and required delivery location
- Drawing, downstream process and application
- Testing, inspection, traceability and documentation requirements
Technical Buyer Guides
Use these supporting resources to define the grade, standard, dimensions, condition and inspection requirements before requesting a quotation.
Related Pages
Continue to relevant product, technical and company information.
Frequently Asked Questions
Do you supply alloy steel round bars for forging and machining?
Yes. The grade and condition must be selected against the component drawing, downstream process, heat-treatment plan and applicable standard.
Is EN19 the same as 4140 round bar?
EN19 and AISI 4140 are often cross-referenced for chromium-molybdenum steel applications, but they should not be treated as automatically identical. Specify the governing standard and required chemistry, condition and properties for technical review.
What information is required for an alloy steel round bar quotation?
Share the grade, standard, diameter, length, condition, quantity, destination, application and inspection requirements.
Discuss Your Alloy Steel Round Bar Requirement
Send the technical specification, quantity and delivery location for availability and quotation.
Contact Jain Steels Group