EN1A LEADED AND NON-LEADED
EN1A LEADED AND NON – LEADED Grade Introduction:
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 LEADED AND NON-LEADED Grade Application:
- Brake hose end
- Hydraulic parts
- Pulleys
- Disc brake pistons
- Wheel nuts and inserts
- Control linkages
- Concrete anchors
- Padlock shackles
- Vice jaws
- Hydraulic fittings
EN1A LEADED AND NON-LEADED Equivalent Grades:
| Standard |
BS970: 1955 |
BS970/PD970: 1970 onwards |
European |
Werkstoff |
US Grades |
| Grade |
EN1A |
230M07 |
9SMn28, 11SMn30 |
1.0715 |
SAE (AISI) 1213, 1215 |
EN1A LEADED AND NON-LEADED Chemical Composition:
| Element |
C |
Si |
Mn |
P |
S |
| Content (%) |
0.07-0.15 |
0.10 Max |
0.80-1.20 |
0.07 Max |
0.2-0.3 |
Mechanical Properties:
| Property |
Metric |
Imperial |
| Hardness, Brinell (typical) |
300 |
33 |
| Hardness, Rockwell C (typical) |
30 |
30 |
| Tensile Strength, Ultimate |
965-1030 MPa |
140000-150000 psi |
| Tensile Strength, Yield |
827-862 MPa |
120000-125000 psi |
| Elongation at Break (in 50 mm (2″)) |
20.0% |
20.0% |
| Compressive Strength |
862 MPa |
125000 psi |
| Charpy Impact (V-Notch) |
27.1-33.9 J |
20.0-25.0 ft-lb |
| Poisson’s Ratio |
0.27-0.30 |
0.27-0.30 |
| Elastic Modulus |
190-210 GPa |
27557-30457 ksi |