600/3 SG / BS 2789
600/3 SG
BS 2789
General
BS2789 GRADE 600-3, SOMETIMES REFERRED TO AS DUCTILE IRON, IS A SPHEROIDAL GRAPHITE (SG) IRON THAT DELIVERS GREATER STRENGTH, WEAR RESISTANCE, AND HARDENING CAPABILITIES THAN GRADE 500-7 SG IRON. THE ROUNDED GRAPHITE NODULES IN ITS MICROSTRUCTURE PRODUCE FEWER STRESS POINTS THAN THE FLAKE GRAPHITE FOUND IN GREY IRON, SIGNIFICANTLY REDUCING THE RISK OF CRACK FORMATION AND ENHANCING DUCTILITY. THIS NODULAR STRUCTURE ALSO IMPROVES RESISTANCE TO LINEAR CRACKING AND DISTORTION.
Uses
VALVES, IMPELLERS, WINCH DRUMS, SEPARATOR BODY LINERS
Heat Treatment & Condition
-
Chemical Analysis
C
·
3.40/3.85
Mn
·
0.10/0.30
P
·
0.10 MAX
Si
·
2.30/3.10
S
·
0.02 MAX
Mg
·
0.07 MAX
| C | Mn | P | Si | S | Mg |
|---|---|---|---|---|---|
| 3.40/3.85 | 0.10/0.30 | 0.10 MAX | 2.30/3.10 | 0.02 MAX | 0.07 MAX |
Typical Mechanical Properties (EXAMPLE ONLY)
TEN. STRENTH
600 MPa MIN
YEILD STRENGTH
370 MPa MIN
ELONG.
3% MIN
HARDNESS
192-269 HB
| TEN. STRENTH | YEILD STRENGTH | ELONG. | HARDNESS |
|---|---|---|---|
| 600 MPa MIN | 370 MPa MIN | 3% MIN | 192-269 HB |