how much of this would add to lead forbullet casting(Brinell hardness of 20)?

you have to add antimony, this would not get hard enough

How hard/durable is this alloy? I need to cast fine details in pendant, earring, and ring form.

Yes, it's plenty hard. You can get some fine detail from your cast but not quite as well as you will from silver. There is more weight in the material so it might be too heavy for earrings. Good luck. We put a layer of fingernail polish over the surface to protect and shine.

What is the hardness of this alloy?

3 Modern pewter contains tin copper and antimony. This source says the Moh's hardness is 3

is this pewter food safe?

Its a state by state law, You have to look up your state max allowed parts per million and compare that to the certs

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RotoMetals High Quality Pewter - Alloy R98 Pewter Casting Ingot (Tin 98%, Bismuth 1.5%, Copper .50%)

RotoMetals High Quality Pewter - Alloy R98 Pewter Casting Ingot (Tin 98%, Bismuth 1.5%, Copper .50%)

Product ID: 5273672

🔥Melts at 466-590°F for easy handling

⚖️98% Tin purity for premium casting

🛡️Lead-free, safe for jewelry & gifts

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2221 Kč

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Description

⚙️ Craft brilliance with every melt — your jewelry’s secret weapon!

SAFE SUSTAINABLE - Lead-free alloy ensures non-toxic, eco-conscious creations
JEWELRY GRADE FINISH - Shiny, smooth surface perfect for costume jewelry and collectibles
OPTIMAL WEIGHT SIZE - Approx. 1 lb ingots sized for convenient melting and handling
PRECISION PERFECT CASTING - Bismuth blend minimizes shrinkage for intricate details
VERSATILE MOLD COMPATIBILITY - Ideal for plaster, sand, and rubber molds

RotoMetals R98 Pewter Casting Ingot is a premium, lead-free alloy composed of 98% tin, 1.5% bismuth, and 0.5% copper. Designed for professional-grade casting, it melts between 466-590°F and offers minimal shrinkage for detailed designs. Each approx. 1-pound ingot is perfect for creating high-quality costume jewelry, collectibles, and decorative items using plaster, sand, or rubber molds.

Specifications

ASIN	B001QV3J46
Best Sellers Rank	#105,991 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #27 in Specialty Metal Raw Materials
Date First Available	January 27, 2009
Is Discontinued By Manufacturer	No
Item Weight	1.1 pounds
Manufacturer	Roto Metals
Package Dimensions	4.41 x 3.23 x 0.79 inches

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