Engineering Excellence with EN24 Flat Bars: A Buyer’s Guide

From aerospace to automotive, from high-speed gear shafts to rugged machine components, EN24 steel has earned its place as one of the most trusted alloy steels in modern engineering. Known for its exceptional tensile strength, shock resistance, and great machinability, EN24 flat bars are a staple for industries that simply cannot compromise on quality.

But as demand grows across sectors, one question rises to the top: Where can you source EN24 flat bars that are both certified and consistent? That’s where choosing the right EN24 flat bar manufacturer in India makes all the difference.

What Makes EN24 Flat Bars So Valuable?

EN24 (also known as 817M40 or AISI 4340) is a nickel-chromium-molybdenum alloy steel. Its secret sauce lies in the perfect balance of strength, ductility and wear resistance. This means EN24 isn’t just strong, it’s tough, reliable under stress and can be machined into precise parts without breaking or deforming.

Typical Mechanical Properties (Heat Treated)

Property	Value (Approx.)
Tensile Strength	850–1000 MPa
Yield Strength	680 MPa
Hardness (Brinell)	248–302 HB
Elongation	~13%
Impact Strength	50–54 J (Izod)

Engineers love working with EN24 because it responds well to heat treatment, can be hardened or tempered and still retains enough ductility to absorb shock loads, something not all high-strength steels can claim.

Who Uses EN24 Flat Bars?

EN24 flat bars are used across a variety of high-impact industries:

Automotive: Gear shafts, connecting rods, axles, crankshafts
Aerospace: Landing gear shafts, actuator parts
Railways: Brake pins, heavy-duty couplings
Oil & Gas: Hydraulic rams, drilling spindles
Tooling & Forging: Mould bases, spindles and dies

Its popularity is driven by one thing: performance in the real world.

Why India Is Leading the Charge

India’s alloy steel sector is evolving quickly. According to the Ministry of Steel, the country produced over 144 million tonnes of crude steel in 2023–24, with a significant push toward value-added steels like EN24 for domestic use and exports (source).

With initiatives like Make in India and PLI schemes supporting sectors like defence and transport, demand for EN24 flat bar manufacturers in India is projected to grow at a steady pace over the next decade.

What to Look for in an EN24 Flat Bar Manufacturer

Not all suppliers are created equal. If you’re sourcing EN24 flat bars, here’s your quick checklist:

Feature	Why It Matters
Mill Test Certificate	Confirms chemistry and heat treatment compliance
Custom Dimensions	Not all projects work with standard widths/thicknesses
Heat-Treated Supply	Save time by sourcing ready-to-use material
Ultrasonic Testing (UT)	Detects internal flaws before machining
Surface Condition	Scale-free and clean bars reduce prep work
Packaging & Logistics	Timely, damage-free delivery for large-volume orders

Meet QSM Steel: Trusted EN24 Flat Bar Manufacturer in India

QSM Steel, located in Mandi Gobindgarh, Punjab, is a leading name in the production of custom and standard-grade flat bars. With over three decades of experience and cutting-edge steel processing infrastructure, QSM Steel delivers high-quality EN24 bars that meet global standards.

What Sets QSM Steel Apart?

In-house rolling, cutting, and straightening
Heat-treated and normalized supply on request
Full material traceability with MTC
Custom sizes available from 16 mm to 150 mm
Consistent supply to automotive, tooling, and engineering companies across India

If your project demands industrial-grade toughness with zero compromises, QSM Steel EN24 flat bars are designed to deliver.

Let’s Build Something Stronger

When your machines, tools, or infrastructure are built to perform, the material behind them should be just as dependable.

Looking for a reliable EN24 flat bar manufacturer in India?
Get in touch with QSM Steel today for certified supply, competitive pricing, and a long-term partnership.

🔗 Website: www.qualitysteelmills.com
📧 Email: sales@qualitysteelmills.com
📞 Call: +91 78140 56118