Material Comparison
Compare verified engineering materials side by side with condition-specific mechanical properties.
| Parameter | ASTM A536 Grade 100-70-03 Ductile Cast Iron | EN-GJS-700-2 Ductile Cast Iron |
|---|---|---|
| Material Family | Cast Iron | Cast Iron |
| Subfamily | Ductile (Nodular) Iron | Ductile (Nodular) Iron |
| ASTM Designation | A536 Grade 100-70-03 | — |
| UNS Designation | F34800 | — |
| SAE Designation | J434 D7003 | — |
| EN Designation | — | EN-GJS-700-2 |
| W-Nr Designation | — | EN-JS1070 |
| DIN Designation | — | GGG-70 |
| ISO Designation | — | 1083/JS/700-2 |
| Element | ASTM A536 Grade 100-70-03 Ductile Cast Iron | EN-GJS-700-2 Ductile Cast Iron |
|---|---|---|
| C (Carbon) | 3.4 – 3.75% | 3.4 – 3.75% |
| Si (Silicon) | 2 – 2.6% | 2 – 2.5% |
| Mn (Manganese) | 0.5 – 0.9% | 0.5 – 0.9% |
| P (Phosphorus) | ≤ 0.05% | ≤ 0.05% |
| S (Sulfur) | ≤ 0.02% | ≤ 0.02% |
| Mg (Magnesium) | 0.035 – 0.06% | 0.035 – 0.06% |
| Cu (Copper) | 0.4 – 0.8% | 0.4 – 0.8% |
| Fe (Iron) | — | — |
| Property | ASTM A536 Grade 100-70-03 Ductile Cast Iron | EN-GJS-700-2 Ductile Cast Iron |
|---|---|---|
| Density · TYPICALUnit: g/cm³ | 7.15 g/cm³ | 7.15 g/cm³ |
| Mechanical Parameter | ASTM A536 Grade 100-70-03 Ductile Cast IronTypical: Normalized or Quenched & Tempered (Pearlitic Matrix, ASTM A536 Note 2) | EN-GJS-700-2 Ductile Cast IronPearlitic (Normalized or As-Cast, wall thickness <= 30 mm) |
|---|---|---|
| Poisson Ratio · TYPICALUnit: dimensionless | 0.28 dimensionless | 0.28 dimensionless |
| Property | ASTM A536 Grade 100-70-03 Ductile Cast Iron | EN-GJS-700-2 Ductile Cast Iron |
|---|---|---|
| Electrical Resistivity · TYPICALCategory: ELECTRICAL • Unit: nΩ·m | 600 nΩ·m | 600 nΩ·m |
| Thermal Conductivity · TYPICALCategory: THERMAL • Unit: W/(m·K) | 30 W/(m·K) | 30 W/(m·K) |
| Specific Heat Capacity · TYPICALCategory: THERMAL • Unit: J/(kg·K) | 490 J/(kg·K) | 490 J/(kg·K) |
| Coefficient of Thermal Expansion · TYPICALCategory: THERMAL • Unit: µm/(m·K) | 11.2 µm/(m·K) | 11.2 µm/(m·K) |
Machinability: Moderate machinability (~60% relative to C36000 baseline). Pearlitic matrix and high hardness (240–300 HBW) demand rigid machine tools, coated carbide inserts, and reduced cutting speeds.
Weldability: Extremely difficult to weld. High hardenability promotes brittle martensitic HAZ; welding should be avoided on critical loaded sections.
Formability / Cold Working: Non-deformable. Limited to casting net shape.
Heat Treatment & Annealing: Normalized: heat to 870°C–900°C (1600°F–1650°F), hold 1 hour per 25 mm of thickness, air cool with fan assist. Can be oil quenched and tempered.
Machinability: Moderate to difficult machinability (~55% of C36000 baseline). Fully pearlitic matrix and high hardness (225–305 HBW) require coated carbide tooling and rigid setups.
Weldability: Extremely difficult to weld. High risk of martensite formation in the HAZ; welding is generally prohibited on stressed components.
Formability / Cold Working: Non-deformable.
Heat Treatment & Annealing: Normalized at 880°C–920°C followed by controlled air cooling to ensure a fully pearlitic matrix. Can be surface hardened by induction or flame to 55–60 HRC.