400/15 SG / BS2789
400/15 SG
BS2789
General
BS2789 GRADE 400-15, SOMETIMES REFERRED TO AS DUCTILE IRON, IS A SPHEROIDAL GRAPHITE (SG) IRON THAT OFFERS A UNIQUE COMBINATION OF STRENGTH, IMPACT RESISTANCE, AND DUCTILITY COMPARED TO TRADITIONAL GREY CAST IRON. WHILE IT DIFFERS IN MECHANICAL PROPERTIES, IT RETAINS SIMILAR MACHINING CHARACTERISTICS, MAKING IT A VERSATILE CHOICE FOR VARIOUS ENGINEERING APPLICATIONS.
Uses
GEARS, PISTONS, VALVE BODIES, DIES & MOULDS, APPLICATIONS REQUIRING GOOD NOISE AND VIBRATION DAMPING
Heat Treatment & Condition
-
Chemical Analysis
C
·
2.50/3.80
Mn
·
0.20/0.50
P
·
0.08 MAX
S
·
0.02 MAX
| C | Mn | P | S |
|---|---|---|---|
| 2.50/3.80 | 0.20/0.50 | 0.08 MAX | 0.02 MAX |
Typical Mechanical Properties (EXAMPLE ONLY)
TEN. STRENTH
400 MPa MIN
YEILD STRENGTH
250 MPa MIN
ELONG.
15%
HARDNESS
120-180 HB MAX
| TEN. STRENTH | YEILD STRENGTH | ELONG. | HARDNESS |
|---|---|---|---|
| 400 MPa MIN | 250 MPa MIN | 15% | 120-180 HB MAX |