EN1A is a very popular grade of low carbon-manganese free cutting steel, which is most suitable for the manufacture of repetition turned components, such as nuts, bolts, hydraulic fittings and studs, particularly where intricate drilling and machining operations are involved. It can be case-hardened, producing components with enhanced wear resistance. En1a is also available as En1a leaded (En1aPb) for greater machinability. Swarf will form in small chips to prevent machine blockage.
EN1A is a non leaded Re-Sulphurised Free Maching Steel. This is premium grade of free cutting steel. It has excellent machinability. It is suitable for case hardening and electroplating. Typical applications are: Brake hose end, hydraulic parts, pulleys, disc brake pistons, wheel nuts and inserts, control linkages, hear box components (case hardened), domestic garbage bin axles, concrete anchors, padlock shackles, hydraulic fittings, vice jaws. En1a steel bars are used mostly in bright form.
EQUIVALENT GRADES OF EN1A STEEL ARE AS FOLLOWS
- AISI – 1213 ,1215
- BS970: 1991 – 230M07
- Werkstoff – 1.0715
- Related European grades: 9SMn28, BS En 11SMn30