Zinc ingots in Special High Grade at 99.995%, High Grade and Prime Western. Full ICP assay including lead, cadmium and tin on every Mill Test Certificate, priced on LME plus premium.
Zinc is graded purely by purity, and purity determines which processes it can feed. Galvanising tolerates more impurity than die casting, which is why the grades exist at different prices.
SHG is the LME-deliverable grade and the standard for die casting, where lead and cadmium impurities cause intergranular corrosion in the finished casting. For hot-dip galvanising, HG or Prime Western is usually sufficient and materially cheaper — specifying SHG for galvanising is a common overspend.
In die casting, trace lead and cadmium cause intergranular corrosion that makes castings crumble over time. The failure appears months or years after production, which makes it expensive and hard to trace back.
If your end use is pressure die casting, the impurity assay is not a formality. Ask for the full analysis, not a purity percentage alone.
On specifications: the figures above reflect standard industry specifications for this product. Your actual batch values are confirmed on the Mill Test Certificate or Certificate of Analysis issued against your specific lot — provided with every shipment, and with sample orders before you commit to bulk. We do not ask buyers to take a specification on trust.
Zinc is LME-traded and high value per container. Independent verification at load port is standard practice.
HS Code 7901.11 (zinc, 99.99% or more) · 7901.12 (under 99.99%). Bundled on pallets, strapped.
MOQ is discussed at order stage. Pricing on LME plus premium with quotational period agreed in writing. Payment by advance TT, LC at sight, or DP/DA case by case.
Purity. Special High Grade is minimum 99.995 percent zinc and is the LME-deliverable grade, required for die casting alloys and brass. High Grade is minimum 99.95 percent and suits general galvanising and alloying. Prime Western at minimum 98 percent serves bulk galvanising. Specifying SHG for galvanising is a common and unnecessary overspend.
In pressure die casting, trace lead, cadmium and tin cause intergranular corrosion that makes castings crumble over time. The failure appears months or years after production, long after the material has been consumed, which makes it expensive and difficult to trace. SHG holds lead and cadmium to a maximum of 0.003 percent for exactly this reason.
HG at minimum 99.95 percent or Prime Western at minimum 98 percent is normally sufficient, depending on your coating specification and the surface finish required. Galvanising tolerates considerably more impurity than die casting, so paying the SHG premium rarely delivers a corresponding benefit.
On LME cash settlement plus a premium, in the same way as copper. Agree the quotational period in writing before the order is confirmed, along with the premium and the grade. The premium varies with grade, destination and quantity.
Unwrought zinc containing 99.99 percent or more zinc by weight falls under HS Code 7901.11. Zinc below that purity falls under 7901.12. We declare the correct code based on the grade ordered.
25 kg is the common commercial ingot, bundled and strapped on pallets. Other weights including jumbo blocks are available on request. Confirm your handling and melting requirements at enquiry stage, since ingot size affects both charging practice and freight efficiency.
Technical drawings welcome. FOB or CIF pricing within 24 hours. Third-party inspection available.
Technical drawings welcome. FOB or CIF pricing, samples available.
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