Comprehensive Ductile Iron Density and Mass Calculator (QT300–QT1000 Series)
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This expanded calculator covers a wide range of ductile iron grades, from QT300 to QT1000, allowing for accurate density-based mass calculations in design and production workflows.
Historical Background
Ductile iron, especially in the QT series, represents a major advancement in cast iron technology due to its improved tensile strength and ductility. The QT (球铁) grading reflects the mechanical properties where the number signifies minimum tensile strength in MPa.
Calculation Formula
\[ \text{Mass (g)} = \text{Density (g/cm³)} \times \text{Volume (cm³)} \]
Each QT grade has slightly different density values based on composition and microstructure.
Example Calculation
Grade: QT700-2
Volume: 200 cm³
\[ \text{Mass} = 7.3 \times 200 = 1460 \text{ g} \]
Importance and Usage Scenarios
- Heavy Industry Design: Mass calculations for machinery parts.
- Casting Simulations: Accurate inputs for software modeling.
- Inventory & Logistics: Estimating shipping weights and material cost.
Common FAQs
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Why does density vary across QT grades?
- Due to varying compositions and graphite nodularity, which affect internal microstructure.
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Can this calculator handle mass in kg or volume in liters?
- Convert values accordingly before input: 1 liter = 1000 cm³, 1000 g = 1 kg.
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What if my grade isn’t listed?
- Use the closest equivalent grade or manually input the specific density if known.
This universal calculator ensures reliability and scalability for a wide array of industrial and engineering applications involving ductile cast iron.