Estimate the weight and cost of a carbon steel and stainless steel castings part: pick the alloy grade (density is filled automatically), enter the part volume, and get the weight in kg and lb. Plus a full ASTM ↔ EN ↔ GB ↔ JIS grade cross-reference below.
Tip: get the exact volume from your 3D/CAD model (mass properties).
Estimate only (material + grade). Final cast weight includes gating/risers & machining stock — send your drawing for an exact quote.
Density and minimum properties per ASTM specification. Cross-standard equivalents are by composition/class for reference — confirm exact interchange for critical parts.
| Grade | Density (g/cm³) | Tensile (per ASTM) | Cross-standard equivalent | PREN |
|---|---|---|---|---|
| Carbon Steel — WCB (ASTM A216) | 7.85 | 485–655 MPa (70–95 ksi) | EN 1.0619 GP240GH / GB ZG230-450 | — |
| Carbon Steel — WCC (ASTM A216) | 7.85 | 485–655 MPa | EN 1.0625 / GB ZG270-500 | — |
| Stainless CF8 — cast 304 (A351) | 7.75 | 485 MPa min (70 ksi) | EN 1.4308 / GB ZG07Cr19Ni9 | ≈ 18–20 |
| Stainless CF8M — cast 316 (A351) | 7.75 | 485 MPa min | EN 1.4408 / GB ZG07Cr19Ni12Mo2 | ≈ 24–26 |
| Stainless CF3M — cast 316L (A351) | 7.75 | 485 MPa min | EN 1.4409 / GB ZG03Cr19Ni12Mo2 | ≈ 24–26 |
| Duplex CD4MCu / ~2205 (A890) | 7.8 | 620 MPa min | ≈ 2205 / EN 1.4517 | ≈ 34–40 |
Casting weight = part volume × material density. Get the volume from your 3D/CAD model, select the alloy for its density (investment & steel casting grades shown above), multiply to get grams, then divide by 1000 for kilograms. Add gating, risers and machining allowance for the as-cast weight.
PREN (Pitting Resistance Equivalent Number = %Cr + 3.3×%Mo + 16×%N) ranks an alloy's resistance to chloride pitting. CF8 (cast 304) ≈ 18–20, CF8M (cast 316) ≈ 24–26, and duplex CD4MCu/2205 ≈ 34–40 — the higher the PREN, the better for seawater, brine and aggressive valve/pump service.