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High Purity Metals Sb 99.99% · 4N Grade

Pure Antimony 99.99%

High-purity antimony metal at 99.99% purity — used as a hardening additive in lead-antimony alloys, in flame retardant production, semiconductor manufacturing, and speciality chemical applications.

Technical Specification

Pure Antimony Ingots

Sb 99.99% · 4N Grade · Industrial Pure
Antimony Purity (Sb %) 99.99% minimum (4N Grade)
Lead (Pb %) [Confirm: e.g. < 0.005% max]
Arsenic (As %) [Confirm: e.g. < 0.005% max]
Iron (Fe %) [Confirm: e.g. < 0.003% max]
Standard Form Ingots / Lumps / Broken pieces
Ingot Weight [Confirm: e.g. 1 kg / 5 kg / 25 kg]
Melting Point 630.6°C
Application Areas Lead Alloy Hardening · Flame Retardants · Semiconductor · Antimony Chemicals
MOQ [Confirm: e.g. 25 kg / 50 kg]
Typical Lead Time [Confirm: e.g. 3–7 working days]

Antimony — The Hardening Metal

Antimony (Sb) is a metalloid that dramatically increases the hardness and strength of lead when added in small percentages — this is the basis of all antimonial lead alloys used in battery grids, structural casting, and bearing metals. PSR Metals supplies pure antimony at 99.99% purity, giving lead-alloy producers precise control over their Sb addition without the variability of lower-purity antimony sources.

Beyond lead alloying, antimony trioxide (Sb₂O₃) — produced from pure antimony — is one of the most widely used flame retardant synergists in plastics and textiles. High-purity antimony is also used in semiconductor applications (InSb), infrared detectors, and as a dopant in lead-acid battery grid pastes. Our 4N grade supply is spectrometrically verified with CoA supplied per batch.

Note: Available in ingots, lumps, or broken form depending on buyer preference and end application. Confirm form factor and packaging requirement when enquiring.

Industrial Applications

Where Pure Antimony Is Used

Lead Alloy Hardening

Flame Retardant Production

Semiconductor & Electronics

Antimony Chemicals

Request a Quote

Enquire About Pure Antimony Supply

Sb 99.99% available in ingot and lump form. Contact us for pricing and CoA samples.