Material affects cost, lead time, machinability, and service life. The same shape can require a different production route depending on whether the part is made from steel, alloy steel, non-ferrous metal, or plastic.
Groundmetal commonly works with steel, alloy steel, non-ferrous metals, and plastics after technical review. Cast iron is not preferred, although machining can be reviewed case by case.
When choosing material, describe what the part must do. Will it transmit torque, carry a bearing, work inside a gearbox, handle impact loading, or serve as a precise mating face? These details help review technology, price, and lead time.
What to state about material
| Topic | Why it matters |
|---|---|
| Material type | Affects machinability, cost, and stock availability. |
| Part function | Helps review strength, fits, wear, and operating risk. |
| Stock size | Can affect material availability and lead time. |
| Surface finish | If needed, it should be included in the enquiry. |
| Quantity | Affects material purchase and production setup. |
Questions before choosing material
- What load will the part carry?
- Is it a shaft, gear wheel, flange, pin, or another moving component?
- Is the material specified in the drawing?
- Is a material alternative acceptable?
- Is surface finishing, hardening, or another follow-on process required?