105MM EN3A/070M20 Black Round Steel Bar

Complete your steel stock order enquiry. Our sales team will be in touch shortly to confirm price and availability.


EN3A and EN3B are general engineering steels, suitable in applications where heavy stresses and heat treatment are not involved, such as welded and riveted structures, forgings, machined parts and hot pressing. High Peak Steels stock this in a range of sizes and shapes.

EN3B is a bright drawn, or turned, mild steel with good machinability. Ideal for use in a variety of general engineering applications. EN3A is Supplied in the Black condition normally as 070M20. High Peak Steels stock offer EN3A | 070M20 in round bar.

EN3A and EN3B steel will withstand a moderate amount of cold deformation and only offers low strength but good machinability. The material has good weldability characteristics however it has poor hardenability. EN3B is a general-purpose mild steel, readily weldable and suitable for case hardening. Flat sections are of particular suited to tool makers.

For wider applications where case hardening is critical engineers can choose, EN3B with a refined analysis that conforms to EN32 (080A15) that has a .13 -.18 carbon content

This will contain PDFs of tolerances, specs etc

Associated standards

UK Standard EN3A | European Grades C15, C20, ST52-3, S235 | Werkstoff 1.0402, 1.0401, 1.1151 | SAE/AISI 1020


Our steel bars will be packaged in a bag, tube or pallet. The choice of packaging for your order will depend on both order size and quantity as well as whether delivery is local or national. Packaging will be determined by High Peak Steels once your order has been received. Should you require bespoke packaging, please use the Order notes at checkout to put forward a specific request.

Local delivery

Local deliveries of stock lengths should arrive within 2-3 working days from the time of order. Delivery of bespoke cut lengths will be subject to additional cutting time. Should there be a delay in this standard time frame for any reason, we will let you know as soon as possible. To establish if your order qualifies for local delivery, you can view details of our local delivery zones.

National delivery

Deliveries outside of our local zones should arrive within 4-5 working days from the time of order. For details of our courier charges, please view our national delivery prices. For details of our courier charges, please view our national delivery prices.

Backorder products

Should a product not be immediately available from stock it will be shown as “AVAILABLE ON BACKORDER”. You may continue to order and pay for this product online but please be aware delivery times may vary. In the unlikely event that High Peak Steels are unable to fulfil your order, a representative from our Sales Team will be in touch within 24 hours to discuss possible alternative products to meet your requirements. If you prefer not to place an online order for backorder items, please call 01457 866911 or email [email protected] to discuss your requirements.

Additional information

Weight 67.99 kg