Use the QDZRT Graphite calculator to estimate nominal weight for blocks, rods, rings and tubes. Send the result with your drawing and quantity so our team can confirm material, machining allowance, inspection and quotation.
The optional stock factor changes only the planning weight. Required blank dimensions and machining allowance are determined from the finished drawing and processing route.
Select a density preset for material-weight calculation or enter the density stated on the grade, TDS or CoA. Purchasing and shipping calculations should use the order material density.
| Graphite Category & Grade | Bulk Density (g/cm³) | Density (lbs/in³) | Grain Structure | Industrial Applications |
|---|---|---|---|---|
| DJY-T01 DJY | 1.72 g/cm³ | 0.0621 lbs/in³ | — | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
| DJY-T02 DJY | 1.90 g/cm³ | 0.0686 lbs/in³ | — | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
| DJY-T03 DJY | 1.76 g/cm³ | 0.0636 lbs/in³ | 8 μm | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
| DJY-T04 DJY | 1.88–1.92 g/cm³ | — | 2 μm | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
| MY-T01 MY | 1.80 g/cm³ | 0.0650 lbs/in³ | — | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
| MY-T02 MY | ≥1.758 g/cm³ | — | 14–20 μm | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
| MY-T03 MY | 1.84 g/cm³ | 0.0665 lbs/in³ | 8–12 μm | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
| JY-T01 JY | ≥1.72 g/cm³ | — | Coarse | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
| JY-T02 JY | ≥1.72 g/cm³; 1.74 g/cm³ (Typical) | 0.0629 lbs/in³ | ≤0.8 mm | Typical / reference properties unless a minimum or maximum value is explicitly stated. Final order specifications are confirmed by grade and batch. |
All calculations utilize physical bulk density ρ (in g/cm³). The fundamental relationship is W = V × ρ. Below are the geometric breakdowns:
When planning international sea container or air courier shipments for graphite materials, factor in packaging tare weight and volumetric billing formulas.
Carriers compare actual gross weight with tariff-defined volumetric (dimensional) weight and charge according to the carrier billing rule.
Each courier or air-freight service uses its own volumetric divisor. Use the divisor stated in the selected freight service before calculating chargeable weight.
Packaging is selected according to part size, fragility, shipment mode and destination requirements, using protective cartons, pallets or wooden/plywood cases.
Gross shipping weight equals product weight plus the actual selected packaging weight.
The calculator uses nominal geometry and the density you enter. Actual billet and flexible-graphite density differs across grade, batch, porosity, dimensional tolerance and machining allowance. For purchasing or shipping weight, use the batch/grade density and final drawing dimensions.
Machining allowance is set from the forming route, billet condition, part size, flatness, surface condition and final tolerance. Send the finished drawing so the required blank size can be calculated.
Yes. We supply graphite blocks, rods and ring blanks with pre-cutting or CNC machining to the BOM/drawing. The quotation states the cutting method, allowance and tolerance for the selected material and size.
Use the density stated for the selected grade or production batch when it is available. For early planning, a material-family density can be used as an estimate, then replaced by the agreed TDS/CoA value for purchasing or shipment calculations.
No. The calculator returns graphite net material weight. Gross shipping weight also includes the actual carton, pallet, protective material or wooden/plywood case selected for the shipment.
Submit the calculated dimensions above. For machined parts, submit the inquiry first and then send a 2D/3D drawing (STEP/DWG/PDF) by email for material selection, manufacturability review and volume quotation.