Inox Steel India is a reliable manufacturer, supplier, and exporter of Alloy Steel Round Bars in high-strength grades AISI 4140, AISI 4340, EN19, and EN24, manufactured and supplied as per ASTM A29 / A322 and EN 10083-3 standards.
Our alloy steel round bars are widely used in heavy engineering, automotive, power transmission, oil & gas, forging, and machinery manufacturing, where high tensile strength, toughness, and fatigue resistance are critical.
With ready stock in hot rolled, forged, and bright drawn conditions, Inox Steel India supports both OEM production requirements and large-scale project supplies, delivering material with full traceability and consistent metallurgical quality.
Inox Steel India is a reliable manufacturer, supplier, and exporter of Alloy Steel Round Bars in high-strength grades AISI 4140, AISI 4340, EN19, and EN24, manufactured and supplied as per ASTM A29 / A322 and EN 10083-3 standards.
Our alloy steel round bars are widely used in heavy engineering, automotive, power transmission, oil & gas, forging, and machinery manufacturing, where high tensile strength, toughness, and fatigue resistance are critical.
With ready stock in hot rolled, forged, and bright drawn conditions, Inox Steel India supports both OEM production requirements and large-scale project supplies, delivering material with full traceability and consistent metallurgical quality.
Alloy steel round bars are solid cylindrical bars produced by adding alloying elements such as chromium, molybdenum, and nickel to carbon steel. These elements significantly enhance strength, hardness, wear resistance, and impact performance, making alloy steel round bars suitable for demanding mechanical applications.
At Inox Steel India, alloy steel round bars are manufactured using controlled processes to achieve uniform microstructure and reliable mechanical properties.
This controlled manufacturing ensures alloy steel round bars suitable for high-load, high-stress, and cyclic service conditions.
These advantages make alloy steel round bars a preferred choice for critical mechanical and structural components.
Inox Steel India supplies alloy steel round bars in the following grades:
AISI 4140 / EN19 – Chromium-molybdenum alloy steel with balanced strength and toughness
AISI 4340 / EN24 – Nickel-chromium-molybdenum alloy steel for high-load applications
Applicable Standards:
ASTM A29 / ASTM A322 / EN 10083-3
Master Technical Datasheet provided above applies to all grades.
India: Strong demand from automotive manufacturers, gearbox producers, forging units, and heavy engineering industries in Mumbai, Pune, Chennai, Coimbatore, Ludhiana, and Faridabad.
GCC & Middle East: Used in oil & gas equipment, drilling components, and industrial machinery.
Europe & Americas: Widely used for power transmission systems, aerospace-linked engineering parts, and heavy-duty shafts.
Inox Steel India supports these markets with ready inventory, export documentation, and consistent supply schedules.
Alloy steel round bars supplied by Inox Steel India are engineered for applications where high strength, fatigue resistance, toughness, and wear resistance are essential.
| Industry / Sector | Typical Applications | Preferred Grades |
| Automotive | Crankshafts, axles, gears, connecting rods | EN19 / 4140 |
| Heavy Engineering | Power transmission shafts, rollers | EN24 / 4340 |
| Forging Industry | Forged blanks, forged components | EN19, EN24 |
| Oil & Gas | Drill collars, couplings, tool joints | EN24 / 4340 |
| Machinery Manufacturing | Spindles, pinions, bushings | EN19 |
| Power & Energy | Turbine components, high-load shafts | EN24 |
Standard Diameter Range (mm):
6, 8, 10, 12, 16, 20, 25, 32, 40, 50, 65, 80, 100 and above up to 500 mm
Length Options:
Random Lengths
Fixed Lengths
Custom Cut-to-Length
Finish Options:
Hot Rolled (Black Alloy Steel Bars)
Bright Drawn (Cold Drawn)
Peeled & Polished
Weight (kg/m) = (D² × 0.006165)
Where D = Diameter in mm
| Grade | Approx. Price INR/kg | Typical Use |
| EN19 / 4140 | ₹ 120 – ₹ 180 | Shafts, gears, machined parts |
| EN24 / 4340 | ₹ 160 – ₹ 240 | Heavy-load & shock-resistant parts |
Prices are indicative and subject to change based on alloy surcharge, billet rates, and size.
HSN Code: 7228
Documentation Supplied:
EN 10204 3.1 / 3.2 Mill Test Certificate
Heat Number Traceability
Third-Party Inspection (SGS / BV / TUV) on request
Inox Steel India is a dependable alloy steel round bar manufacturer and supplier in India, supplying high-strength alloy steel bars for critical load-bearing and fatigue-resistant applications.
| Industry | Application |
| Automotive | Crankshafts, axles, gears, transmission shafts |
| Heavy Engineering | Power transmission shafts, rollers |
| Oil & Gas | Tool joints, couplings, drilling components |
| Forging Industry | Forged blanks and precision forgings |
| Machinery Manufacturing | Spindles, pinions, high-load components |
| Power & Energy | Turbine shafts and heavy mechanical parts |
Export Destinations:
UAE, Saudi Arabia, Oman, Qatar, Nigeria, South Africa, Germany, Italy, USA, and other global markets.
Dispatch is handled through JNPT (Mumbai), Mundra, and Hazira ports.
If you are searching for an alloy steel round bar supplier near Alankar Cinema, Mumbai, Inox Steel India offers immediate availability, competitive pricing, and certified alloy steel material with nationwide and export delivery support.
Q1. What is the difference between EN19 and EN24 round bars?
EN24 (AISI 4340) contains nickel in addition to chromium and molybdenum, offering higher toughness and impact strength than EN19 (AISI 4140).
Q2. What is the price of alloy steel round bars per kg in India?
Alloy steel round bar prices typically range from ₹120 – ₹240 per kg.
Q3. Are alloy steel round bars supplied in heat-treated condition?
Yes, alloy steel round bars are commonly supplied in quenched & tempered (Q&T) condition.
Q4. Which alloy steel grade is best for high-load shafts?
EN24 / AISI 4340 is preferred for high-load and shock-resistant shaft applications.
Q5. What is the HSN code for alloy steel round bars?
The HSN code is 7228.
Q6. Do you provide custom cut-to-length alloy steel bars?
Yes, we supply custom cut lengths as per drawings or machining requirements.