Alloy

Pewter

Tin with a little antimony and copper — the tableware of ordinary households for five centuries, before pottery and then porcelain displaced it.

Pewter is mostly tin, hardened with a few per cent of antimony and copper because pure tin is too soft to hold a shape. Modern pewter is that; historic pewter very often contained lead as well, sometimes a great deal, and the distinction between the grades was a matter of trade regulation and periodic scandal.

Its advantage was manufacturing rather than performance. It melts below 230 °C, so it could be cast in reusable moulds by a workshop without a serious furnace, and it could be melted down and recast when it wore or dented. A pewter plate was a household's durable good in a way a ceramic one was not.

History

Between roughly the fourteenth and the eighteenth centuries pewter was what most European households of any means ate from. The pewterers' guilds regulated composition closely, precisely because tin was expensive and lead was not and the temptation to substitute was constant — the better grades were marked, and adulteration was a recurring prosecution.

What ended it was cheap ceramics. Industrially produced earthenware and then porcelain were lighter, easier to clean, did not dent, and by the nineteenth century cost less. Pewter retreated to tankards and decorative work, where it remains.

A curiosity of the metal outlived its use. Below about 13 °C, tin's stable form is a brittle grey powder rather than a metal, and old pewter kept in unheated rooms occasionally crumbled — the effect known as tin pest. It is slow enough to be a museum problem rather than a domestic one.

Medium confidence Weak evidence

How we know: checked recently · only one source, so there is nothing to cross-check it against · stated directly by the source.

How this connects

Where a connection has been confirmed by an outside reference, that reference is named beside it.

is composed of

Tin — element · 85–99% · almost all of it; the rest is there to stop it being too soft to hold a shape
Antimony — element · 0–8% · the principal hardener in modern pewter
Copper — element · 0–3% · a small addition alongside the antimony, and one the guilds specified
Lead — element · 0–30% · in historic pewter and not in modern, sometimes in quantity — the difference between the grades was a matter of guild regulation and recurring prosecution

is produced by

Alloying and melting — process · cast in reusable moulds at under 230 °C, which is low enough for a workshop without a serious furnace — much of why it spread

is an alternative to

Porcelain — material · in tableware, and it won completely: industrially produced ceramics were lighter, easier to clean, did not dent, and by the nineteenth century cost less

is used as

Tableware and vessels — application · the reason it existed: cast cheaply on a domestic hearth, cleanable, and recastable when it dented — the tableware of ordinary European households for five centuries

Sources

Wikidata
Wikimedia Foundation · Creative Commons CC0 1.0 Universal (public domain dedication)
Material World
Our own writing

Questions this page answers

Where it comes from, and what it becomes

Follow Pewter back to what it starts as, and forward into what it becomes. Each step is a documented one — a real route material takes, not a chain of inference.

Upstream — what it comes from

Pewter → is composed of (a small addition alongside the antimony, and one the guilds specified) → Copper → is produced by (as blister copper, refined electrolytically afterwards) → Smelting → takes as input (as the element removed, not added) → Oxygen → is produced by (the largest output by tonnage, and the reason air separation units sit beside steelworks) → Air separation → takes as input (the feedstock, and an unusual one in being free, unlimited and available anywhere — the cost is entirely the energy to liquefy it) → Air
Pewter → is composed of (almost all of it; the rest is there to stop it being too soft to hold a shape) → Tin → is produced by (reduced from cassiterite at relatively low temperature) → Smelting → takes as input (as the element removed, not added) → Oxygen → is produced by (the largest output by tonnage, and the reason air separation units sit beside steelworks) → Air separation → takes as input (the feedstock, and an unusual one in being free, unlimited and available anywhere — the cost is entirely the energy to liquefy it) → Air
Pewter → is composed of (the principal hardener in modern pewter) → Antimony → is produced by (reduced from the oxide left by roasting stibnite) → Smelting → takes as input (as the element removed, not added) → Oxygen → is produced by (the largest output by tonnage, and the reason air separation units sit beside steelworks) → Air separation → takes as input (the feedstock, and an unusual one in being free, unlimited and available anywhere — the cost is entirely the energy to liquefy it) → Air
Pewter → is produced by (cast in reusable moulds at under 230 °C, which is low enough for a workshop without a serious furnace — much of why it spread) → Alloying and melting → takes as input (the base metal of both brass and bronze) → Copper → is produced by (as blister copper, refined electrolytically afterwards) → Smelting → takes as input (as the element removed, not added) → Oxygen → is produced by (the largest output by tonnage, and the reason air separation units sit beside steelworks) → Air separation
Pewter → is composed of (in historic pewter and not in modern, sometimes in quantity — the difference between the grades was a matter of guild regulation and recurring prosecution) → Lead → is produced by (as the oxide, from galena, by the same route) → Roasting → takes as input (a copper sulfide; roasting drives off the sulfur that would otherwise prevent reduction) → Chalcopyrite
Pewter → is composed of (a small addition alongside the antimony, and one the guilds specified) → Copper → is extracted from (the principal copper ore worldwide) → Chalcopyrite

These are the most distinct paths back. Pewter can be traced through others besides.

Downstream — what it becomes

Pewter → is used as (the reason it existed: cast cheaply on a domestic hearth, cleanable, and recastable when it dented — the tableware of ordinary European households for five centuries) → Tableware and vessels