En1a Steel Round Bar Application: Mechanical Engineering

EN1A (also known as BS 970 230M07) is bright Mild Steel noted for its low carbon content. This Steel is especially good for free cutting, where a large volume of products are required.
It can be formed by rolling or drawing and the machining of EN1A is fine of both automatic and CNC machines.
Heat Treatment
Carbonization of EN1A bright Mild Steel takes place at 900-950A C (1652A F- 1742A F) then it is furnace or air cooled.
EN1A can be tempered at 180-210 A C (356 A F- 410A F) then should be left to cool in air.
The Mild Steel can be hardened at 780-800A C (1436A F- 1472A F) then quenched in oil or water. However this is difficult to do with EN1A and is not recommended.
Chemical Composition of EN1A Steel
CMnSiPS
Min 0.100.070.30
Max0.151.000.350.060.60
Welding EN1A Steel
Due to the low carbon content of EN1A it is not recommended that this Mild Steel is used for welding.
Mechanical Properties of EN1A Steel
Condition : Tensile Strength
MPa Min. : Yield Strength
MPa Min. : Elongation %
Cold drawn : 400 290 7-9
Turned & Polished : 370 230 18

International Comparisons of EN1A
British BS 970:1991 : 230M07 Pb
Swedish SS : 1914
German DIN : 9SMn28Pb
American SAE : 12L14
French AFNOR : S250Pb
European Standard : EN10277-3
European Steel No. : 1.0718
European Steel Name : 11SMnPb30