EN8 Material: Round Bar & Flat Bar – The Ideal Choice for Engineering Excellence

Daivik Gupta
May 29
2 min read

When it comes to medium-strength engineering steel, EN8 (also known as 080M40) stands out as a highly versatile and cost-effective choice. Whether you're in the automotive, fabrication, machinery, or construction sector, EN8 round bars and flat bars offer a perfect balance of strength, machinability, and affordability. In this post, we’ll explore what makes EN8 steel a preferred material for a wide range of applications—and why you should consider sourcing EN8 bars for your next project.

🔍 What is EN8 Steel?

EN8 is an unalloyed medium carbon steel grade conforming to British Standard BS 970. With a typical carbon content of 0.40%, it is known for its excellent tensile strength, good surface hardness after heat treatment, and decent machinability in both normalized and heat-treated conditions.

🧱 EN8 Round Bar – Precision and Strength

EN8 round bars are widely used in components that demand high tensile strength and good wear resistance. These bars are ideal for:

Shafts and axles
Studs and bolts
Automotive and heavy equipment parts
Connecting rods
Crankshafts

Key Features:

Available in hot rolled, peeled, or turned finishes
Supplied in both normalized and hardened & tempered conditions
Can be induction hardened for higher surface strength
Excellent dimensional tolerance for precision applications

📏 EN8 Flat Bar – Versatile and Reliable

EN8 flat bars are highly versatile and often used in fabrication, general engineering, and industrial construction. Common uses include:

Base plates and frames
Linkages and brackets
Tooling and jigs
Support structures and general assembly

Key Features:

Easy to cut, weld, and machine
Good impact resistance
High tensile strength (typically up to 700 MPa)
Available in custom lengths and sizes

🔩 Why Choose EN8 Round & Flat Bars?

✅ High Strength with Cost Efficiency – EN8 offers a great strength-to-cost ratio compared to alloy steels.

✅ Custom Machining – Easy to machine in the untreated or normalized condition, allowing cost-effective production.

✅ Heat Treatable – Can be hardened and tempered for added durability.

✅ Wide Availability – EN8 is stocked in a variety of sizes, ready for fast dispatch.

✅ Application Versatility – Ideal for sectors like automotive, oil & gas, power equipment, general engineering, and construction.

🏭 Industries We Serve

We supply EN8 bars to customers across industries including:

Automotive and Railways
Construction and Infrastructure
OEMs and Heavy Engineering
Agricultural Equipment
Defence and Power Sectors

📞 Let’s Work Together!

Looking for a reliable supplier of EN8 round bars or flat bars? We offer:

Competitive pricing
Consistent quality with test certificates
Delivery PAN India
Customized lengths and machining services

📚 Related Products

Interested in similar grades? Ask us about:

EN9 Steel – Higher carbon version for greater hardness
EN19 / 4140 Alloy Steel – For higher strength and toughness
MS (Mild Steel) Bars – For general-purpose fabrication

EN8 steel round and flat bars continue to be the trusted choice for engineers and manufacturers across India. Whether you need raw material for a machining job or custom-cut bars for a structural application, we’re here to deliver quality you can count on.