212A42 / EN 8DM
212A42
EN 8DM
General
EN8DM IS A BRIGHT DRAWN MEDIUM CARBON STEEL, IDEAL FOR REPETITION MACHINING. IT IS A FREE-CUTTING VARIANT OF 080M40 (EN8), OFFERING IMPROVED MACHINABILITY WHILE MAINTAINING THE CORE MECHANICAL PROPERTIES OF STANDARD EN8. THIS GRADE CAN BE HEAT TREATED TO ENHANCE STRENGTH AND HARDNESS, MAKING IT SUITABLE FOR COMPONENTS THAT REQUIRE BETTER PERFORMANCE THAN MILD STEEL. EN8DM ALSO RESPONDS WELL TO INDUCTION HARDENING, PROVIDING INCREASED WEAR RESISTANCE—IDEAL FOR APPLICATIONS WHERE WELDING IS NOT REQUIRED.
Uses
EN8D STEEL IS FREQUENTLY USED IN APPLICATIONS LIKE CRANKSHAFTS THAT DEMAND MORE STRENGTH AND WEAR RESISTANCE THAN EN8.
Heat Treatment & Condition
COMMERCIALY AVAILABLE IN THE BRIGHT AS DRAWN CONDITION.
Chemical Analysis
C
·
0.16/0.24
Si
·
0.10/0.40
Mn
·
0.50/0.90
S
·
0.050 MAX
P
·
0.050 MAX
| C | Si | Mn | S | P |
|---|---|---|---|---|
| 0.16/0.24 | 0.10/0.40 | 0.50/0.90 | 0.050 MAX | 0.050 MAX |
Typical Mechanical Properties (EXAMPLE ONLY)
TEN. STRENTH
430 N/MM2
YIELD STRESS
300 N/MM2
ELONG
21%
| TEN. STRENTH | YIELD STRESS | ELONG |
|---|---|---|
| 430 N/MM2 | 300 N/MM2 | 21% |