MAT GRADES • 160 VERIFIED MATERIALS
Mat GradesEngineering Materials Database
Verified Curated Comparison Pairs:Source-Qualified
6061 Aluminum vs 7075 Aluminum6061 Aluminum vs 6063 Aluminum5052 Aluminum vs 6061 Aluminum316 Stainless Steel vs 316L Stainless Steel304 Stainless Steel vs 304L Stainless Steel2024 Aluminum vs 7075 Aluminum

Material Comparison

Compare verified engineering materials side by side with condition-specific mechanical properties.

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Material A (Baseline)
Material B (Comparison)
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Temper & Metallurgical Context Qualification:The selected records contain different or missing source contexts. Values shown in separate rows are not directly matched. Typical and estimated values are not guaranteed minima; matching context alone does not establish interchangeability.
1. Identity, Classification & Standards
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ParameterEN-GJS-400-15 Ductile Cast IronEN-GJS-500-7 Ductile Cast Iron
Material FamilyCast IronCast Iron
SubfamilyDuctile (Nodular) IronDuctile (Nodular) Iron
EN DesignationEN-GJS-400-15EN-GJS-500-7
W-Nr DesignationEN-JS1030EN-JS1050
ISO Designation1083/JS/400-151083/JS/500-7
DIN Designation—GGG-50
2. Chemical Composition Limits (wt %)Source-specific limits and typical values
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ElementEN-GJS-400-15 Ductile Cast IronEN-GJS-500-7 Ductile Cast Iron
C (Carbon)3.5 – 3.85%3.5 – 3.8%
Si (Silicon)2.2 – 2.8%2.2 – 2.7%
Mn (Manganese)≤ 0.4%0.3 – 0.6%
P (Phosphorus)≤ 0.05%≤ 0.05%
S (Sulfur)≤ 0.02%≤ 0.02%
Mg (Magnesium)0.035 – 0.06%0.035 – 0.06%
Fe (Iron)——
3. Physical Properties
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PropertyEN-GJS-400-15 Ductile Cast IronEN-GJS-500-7 Ductile Cast Iron
Density · TYPICALUnit: g/cm³7.1 g/cm³7.15 g/cm³
4. Contextual Mechanical PropertiesUnit: SI
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Mechanical ParameterEN-GJS-400-15 Ductile Cast IronFerritic (As-Cast or Annealed, wall thickness <= 30 mm)EN-GJS-500-7 Ductile Cast IronFerritic-Pearlitic (As-Cast, wall thickness <= 30 mm)
Poisson Ratio · TYPICALUnit: dimensionless0.28 dimensionless0.28 dimensionless
5. Electrical & Thermal Conductive Properties
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PropertyEN-GJS-400-15 Ductile Cast IronEN-GJS-500-7 Ductile Cast Iron
Electrical Resistivity · TYPICALCategory: ELECTRICAL • Unit: nΩ·m550 nΩ·m570 nΩ·m
Thermal Conductivity · TYPICALCategory: THERMAL • Unit: W/(m·K)36 W/(m·K)34 W/(m·K)
Specific Heat Capacity · TYPICALCategory: THERMAL • Unit: J/(kg·K)470 J/(kg·K)475 J/(kg·K)
Coefficient of Thermal Expansion · TYPICALCategory: THERMAL • Unit: µm/(m·K)12 µm/(m·K)11.6 µm/(m·K)
7. Fabrication & Processing Comparison
EN-GJS-400-15 Ductile Cast Iron Characteristics:

Machinability: Very good machinability (~85% of C36000 baseline). Low tool wear.

Weldability: Weldable with preheat (200°C) and nickel-iron electrodes.

Formability / Cold Working: Limited localized cold forming.

Heat Treatment & Annealing: Typically utilized as-cast or sub-critically annealed.

EN-GJS-500-7 Ductile Cast Iron Characteristics:

Machinability: Good machinability (~75% of C36000 baseline). Mixed ferritic-pearlitic structure delivers smooth finishes and moderate tool life.

Weldability: Difficult to weld. Preheat to 250°C and use nickel-iron (ENiFe-CI) electrodes with controlled interpass temperatures.

Formability / Cold Working: Limited localized deformation only.

Heat Treatment & Annealing: Typically used as-cast. Normalizing from 900°C increases pearlite and strength.

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