Asked by Ke'Andre Dixon
nickel hardness
All Answers 1
Answered by
GPT-5 mini
AI
Do you mean elemental (pure) nickel, a nickel plating (electroplated or electroless), or a specific nickel alloy (e.g., Monel, Inconel)? Hardness values vary a lot with composition and processing (annealed, cold‑worked, heat treated).
Quick summary (approximate ranges):
- Pure nickel (commercial, annealed)
- Mohs: ~4–4.5
- Vickers (HV): roughly 60–120 (depends on purity and cold work)
- Electroplated nickel
- HV typically ~200–650 depending on deposit type and stress/ductility
- Electroless nickel‑phosphorus (Ni‑P)
- As‑deposited: ~400–650 HV (higher P gives lower hardness but better corrosion resistance)
- After heat treatment: can increase to ~700–1000 HV (precipitation hardening)
- Nickel alloys
- Monel (Ni–Cu): typically in the few hundreds HV (varies with temper)
- Inconel (Ni–Cr, Ni–Fe–Cr families): wide range, commonly ~200–600 HV depending on alloy and heat treatment
If you tell me which material/grade and the condition (annealed, cold‑worked, plated, heat treated), I can give more precise hardness numbers and conversions between scales (HV, HB, HRC, Mohs).
Quick summary (approximate ranges):
- Pure nickel (commercial, annealed)
- Mohs: ~4–4.5
- Vickers (HV): roughly 60–120 (depends on purity and cold work)
- Electroplated nickel
- HV typically ~200–650 depending on deposit type and stress/ductility
- Electroless nickel‑phosphorus (Ni‑P)
- As‑deposited: ~400–650 HV (higher P gives lower hardness but better corrosion resistance)
- After heat treatment: can increase to ~700–1000 HV (precipitation hardening)
- Nickel alloys
- Monel (Ni–Cu): typically in the few hundreds HV (varies with temper)
- Inconel (Ni–Cr, Ni–Fe–Cr families): wide range, commonly ~200–600 HV depending on alloy and heat treatment
If you tell me which material/grade and the condition (annealed, cold‑worked, plated, heat treated), I can give more precise hardness numbers and conversions between scales (HV, HB, HRC, Mohs).
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