070M20 Carbon Steel | EN3A | C20 | 1.0402

Supplier & Exporter – Nifty Alloys

What is 070M20 Carbon Steel?

When you need an engineering steel that is both reliable, possesses good weldability and machinability alongside regular tensile strength, 070M20 Carbon Steel (or EN3A, C20, or 1.0402) is the perfect choice. It is a low carbon steel specification that contains about 0.20% carbon, therefore easily machinable alongside weldable without risk of cracking.

We at Nifty Alloys supply 070M20 round bars, flats, plates, and forging pieces in black as well as bright drawn conditions. With our global supply chain and rigorous quality control, you can trust us to supply steel that performs consistently in your most demanding applications.
 

Key Features & Benefits of 070M20 Carbon Steel

• Low carbon content (0.20%) – offers excellent machinability.
   
• Good weldability – ideal for fabrication and engineering structures.
   
• Moderate tensile strength – sufficient for non-high-stress applications.
   
• Easily carburized – suitable for surface hardening treatments.
   
• Cost-effective – affordable solution for general engineering.
   
• Wide availability – offered in multiple forms and sizes by Nifty Alloys.
   

Forms of 070M20 Available at Nifty Alloys

We stock and supply 070M20 in multiple shapes and sizes to match your requirements:

• Round Bars – hot rolled, forged, and bright drawn.
   
• Flats & Plates – cut to size.
   
• Sheets – custom thicknesses available.
   
• Forgings – tailored shapes for industrial use.
   

Every product undergoes strict testing and comes with mill certification for traceability.

Comparison: 070M20 vs 080M40 (EN8 Steel)

• 070M20: Low carbon, better machinability, lower tensile strength.
   
• 080M40 (EN8): Medium carbon, higher strength, less machinable, harder to weld.
   

If you need high machinability and weldability, choose 070M20.
If you need higher strength and wear resistance, consider EN8 (080M40).

(You can check our EN8 Carbon Steel page for details.)