Grades: EN19, EN24, AISI 4140 | Supplier & Exporter
Inox Steel India is a trusted manufacturer, supplier, and exporter of alloy steel flat bars in India, supplying high-strength EN19, EN24, and AISI 4140 flat bars for demanding engineering and industrial applications.
Our alloy steel flat bars are produced from chromium–molybdenum alloy steels using controlled hot rolling and forging processes, followed by suitable heat treatment. This ensures excellent strength, toughness, wear resistance, and dimensional stability, making them ideal for components subjected to high load, impact, and fatigue stress.
Buyers searching for alloy steel flat bars manufacturers in India, alloy steel flat bars price list, steel flat bar price, or alloy steel flat bars sizes rely on Inox Steel India for consistent quality, certified material, and reliable supply from Mumbai.
An alloy steel flat bar is a solid rectangular section bar manufactured from carbon steel alloyed with elements such as chromium and molybdenum. These alloying elements significantly improve strength, hardenability, wear resistance, and heat-treatment response compared to mild steel flat bars.
Alloy steel flat bars are commonly used where mild steel flat bars are insufficient to handle mechanical stress, shock loads, or long-term cyclic loading.
These characteristics make alloy steel flat bars a preferred material for automotive, heavy engineering, power, and machinery manufacturing.
In India, alloy steel flat bars see strong demand in Mumbai, Pune, Ahmedabad, Chennai, and Bengaluru, driven by automotive OEMs, heavy engineering units, and machine manufacturers.
Globally, EN24 and AISI 4140 flat bars are exported to GCC countries, Africa, Europe, and the Americas, where high-strength alloy steels are essential for oil & gas, power generation, and industrial machinery.
With dispatch from JNPT (Mumbai), Mundra, and Hazira ports, Inox Steel India ensures timely delivery and export-compliant documentation.
| Parameter | Complete Specification |
|---|---|
| Product Name | Alloy Steel Flat Bars |
| Product Form | Flat / Rectangular Solid Bars |
| Grades Available | EN19, EN24, AISI 4140 |
| Equivalent Standards | EN 10083, ASTM A322 / A29 |
| Material Type | Chromium–Molybdenum Alloy Steel |
| Manufacturing Process | Hot Rolled, Forged, Rough Machined |
| Surface Finish | Black (Hot Rolled), Rough Machined, Turned |
| Edge Condition | Mill Edge, Machined Edge |
| Supply Condition | Annealed / Normalized / Quenched & Tempered (Q&T) |
| Density | 7.85 g/cm³ |
| Tensile Strength | 850 – 1000 MPa (condition dependent) |
| Yield Strength | 650 – 850 MPa |
| Elongation | ≥ 12 – 16% |
| Hardness | 197 – 321 HB (up to 35–40 HRC after HT) |
| Impact Strength | High (EN24 superior toughness) |
| Wear Resistance | High |
| Heat Treatability | Excellent (Annealing, Normalizing, Q&T) |
| Weldability | Moderate (pre-heating recommended) |
| Machinability | Good (best in annealed condition) |
| Width Range | 12 mm – 300 mm |
| Thickness Range | 6 mm – 100 mm |
| Length Options | Random Length, 6 Meter, Custom Cut Lengths |
| Standard Commercial Sizes | 25×6, 40×8, 50×10, 65×12, 75×12, 100×16 mm |
| Approx Weight Reference | As per Alloy Steel Flat Bar Weight Chart |
| Typical Applications | Shafts, gears, crankshafts, axles, heavy-duty components, structural parts |
| Industries Served | Automotive, Heavy Engineering, Oil & Gas, Power, Machinery Manufacturing |
| EN19 Flat Bar Price | ₹95 – ₹125 per kg |
| EN24 Flat Bar Price | ₹120 – ₹160 per kg |
| AISI 4140 Flat Bar Price | ₹110 – ₹150 per kg |
| Price Basis | Ex-Mumbai / Ex-Works India (indicative) |
| HSN / HS Code | 7228 |
| Testing Performed | Chemical Analysis, Tensile, Yield, Hardness, Impact Test |
| Certification | EN 10204 3.1 / Mill Test Certificate |
| Third-Party Inspection | SGS, BV, TUV (on request) |
| Packaging | Steel strapped bundles, wooden pallets / crates |
| Dispatch Ports | JNPT (Mumbai), Mundra, Hazira |
| Domestic Supply | Mumbai, Navi Mumbai, Pune, Ahmedabad, PAN India |
| Export Markets | GCC, Middle East, Africa, Europe, North & South America |
Choosing the correct alloy steel grade is critical for performance and cost efficiency:
Inox Steel India supports buyers with grade selection based on load conditions, heat treatment requirements, and machining needs.
Alloy steel flat bars supplied by Inox Steel India are designed for high-load, high-stress, and fatigue-resistant applications where mild steel flat bars are not suitable.
| Industry Segment | Typical Applications |
|---|---|
| Automotive & Transport | Axles, crankshafts, gear blanks |
| Heavy Engineering | Shafts, spindles, couplings |
| Oil & Gas | Valve components, tool parts |
| Power & Energy | Turbine parts, structural components |
| Machinery Manufacturing | CNC-machined components |
| Mining & Earthmoving | Wear-resistant parts |
Grade-wise application guidance:
Inox Steel India supplies alloy steel flat bars in a wide range of standard and custom sizes, suitable for both machining and fabrication.
Standard Size Range:
Width: 12 mm – 300 mm
Thickness: 6 mm – 100 mm
Length: Random Length / 6 Meter / Custom Cut Lengths
Common Commercial Sizes (mm):
25×6 | 40×8 | 50×10 | 65×12 | 75×12 | 100×16
Alloy Steel Flat Bar Sizes PDF available on request
| Size (mm) | Approx. Weight (kg/m) |
|---|---|
| 25 × 6 | 1.18 |
| 40 × 8 | 2.51 |
| 50 × 10 | 3.93 |
| 65 × 12 | 6.12 |
| 75 × 12 | 7.07 |
| 100 × 16 | 12.56 |
Alloy Steel Flat Bar Weight Chart PDF available
Prices depend on grade, heat treatment condition, size, and quantity. Indicative ranges:
| Grade | Price INR / Kg |
|---|---|
| EN19 Flat Bar | ₹95 – ₹125 |
| EN24 Flat Bar | ₹120 – ₹160 |
| AISI 4140 Flat Bar | ₹110 – ₹150 |
Prices are Ex-Mumbai / Ex-Works India and may vary with alloy surcharge and heat treatment.
HSN Code: 7228
Applicable for domestic invoicing and export documentation.
All alloy steel flat bars undergo stringent quality checks before dispatch:
When sourcing alloy steel flat bars, buyers look for correct grade selection, heat-treatment capability, certified material, and consistent supply. Inox Steel India delivers on each of these critical factors.
Key Advantages:
Our strength lies in supplying engineering-grade alloy steel flat bars that perform reliably under demanding service conditions.
Alloy steel flat bars are packed to ensure safety during handling and long-distance transport:
Export Destinations:
GCC · Middle East · Africa · Europe · North & South America
Whether you require EN19 flat bars for machining, EN24 flat bars for impact-loaded components, or AISI 4140 flat bars for export projects, our team will assist with grade selection, pricing, and delivery schedules.
52-A, Mulji Thackersi Bldg, Islampura Street, Shop No. 10, Near Alankar Cinema, Mumbai – 400 004
alloy@inoxsteelindia.in
+91 9930796690
EN24 contains nickel, offering higher toughness and impact strength compared to EN19. AISI 4140 is equivalent to EN19 and is widely used for export and international engineering projects. Yes, they can be supplied in annealed, normalized, or Q&T condition as per application. Yes, all alloy steel flat bars are supplied with EN 10204 3.1 MTC. Yes, we regularly export to GCC, Africa, Europe, and the Americas. What is the difference between EN19 and EN24 flat bars?
What is AISI 4140 flat bar equivalent to?
Can alloy steel flat bars be heat treated?
Do you provide test certificates with supply?
Do you export alloy steel flat bars?
Inox Steel India is a trusted manufacturer & supplier of alloy steel flat bars (EN19, EN24, AISI 4140). Get alloy steel flat bar price list, sizes & PAN India supply.