Casting Alloy 92J – Lead-Free Pewter Alloy
For High Precision Casting Applications
Casting Alloy 92J is a premium lead-free pewter alloy developed for high precision casting applications where a bright, polished finish is essential. Widely used by jewellery makers, decorative metalworkers, and manufacturers of fine pewterware, this alloy delivers exceptional detail reproduction and surface quality. Fully compliant with BS EN611-1:1996 Pewter standards, 92J offers a safer alternative to leaded alloys with excellent fluidity for small-scale or industrial use.
| Property | Value | Benefit |
|---|---|---|
| Type | Lead-free pewter | BS EN611-1:1996 compliant, consumer-safe |
| Solidus | 240°C | Precise melt start |
| Liquidus | 255°C | Quick to full flow |
| Density | 7.24 g/cc | Stable castings |
| Pouring Temp | 290–320°C | Ideal for details |
Key Benefits
Lead-free – Free-flowing – Polished Finish
- Safe & Compliant: Ideal for jewellery and consumer items.
- Detail Reproduction: Fills intricate moulds perfectly.
- Bright Polish: No post-processing needed for shine.
- Versatile: Artisans to factories.
Technical Specs
Narrow melt range – High fluidity – Proven standard
92J pewter melts sharply between 240-255°C solidus/liquidus, pours at 290-320°C for defect-free results. Density ensures predictable shrinkage.
Applications
Jewellery – Pewterware – Trophies
Perfect for rings/pendants, vases/tableware, medals/plaques, and precision parts.
📊 View Full Chemical Composition & Impurity Limits
| Sn (Tin) | Sb (Antimony) | Cu (Copper) | Pb (Lead) | Fe (Iron) | Al (Alum) | Ni (Nickel) |
|---|---|---|---|---|---|---|
| 91.5–92.5% | 7.0–8.0% | 0.4–0.6% | <0.10% | <0.01% | <0.005% | <0.01% |
*Additional trace elements (Zn, Bi, Cd, Ag, Au, As, In, P) maintained within BS EN611-1 tolerances.
Why Buy Casting Alloy 92J Pewter from DKL Metals?
As a trusted UK supplier of specialist casting alloys, DKL Metals guarantees consistent quality, fast delivery, and expert advice. Casting Alloy 92J is packaged to protect purity and ensure easy melting, whether for artisanal workshops or large-scale manufacturing. You can learn more about casting alloys in our Role of Casting Alloys news page
Frequently Asked Questions
Is 92J pewter safe for food and drink?
Yes. 92J is a lead-free alloy compliant with BS EN611-1 standards, making it non-toxic and safe for food-contact items like tankards, spoons, and tableware.
How do I prevent surface porosity in my pewter casts?
To ensure a smooth finish, maintain a consistent pouring temperature of 290-320°C. Ensure your moulds are properly vented to allow gases to escape and pre-heat your moulds to prevent premature solidification.
Why is my pewter casting brittle or cracking?
Cracking usually occurs due to “hot tearing” or overheating the metal. Using 92J ensures high malleability; if issues persist, check that you aren’t cooling the casting too rapidly or using a mould with restricted shrinkage paths.
Can 92J pewter be plated with silver or gold?
Absolutely. Because of its low porosity and bright finish, 92J serves as an excellent substrate for electroplating, allowing for high-end gold or silver-plated finishes on jewellery and awards.
What are the typical uses for casting alloy 92J?
92J is the industry standard for precision centrifugal casting. It is most commonly used for high-quality costume jewellery, intricate figurines, scale models, and commemorative medals.
Is 92J pewter nickel-free and hypoallergenic?
Yes. 92J is 100% nickel-free, meeting REACH standards for jewellery and skin-contact items.