About Spangle

Master Alloys for
Jewellery Manufacturing

Consistent. Predictable. Built for real production conditions.

Who We Are

Built for predictable manufacturing outcomes

Jewellery manufacturing depends on consistency — across melts, batches, operators, and timelines. Small variations at the alloy stage often show up later as rework, finishing delays, or inconsistent output.

SPANGLE master alloys are developed with a focus on reliable performance under real jewellery manufacturing conditions, helping reduce variation and support repeatable results in everyday production.

Formerly operating under our legacy name, we are now Spangle Alloys Private Limited — a formal step that reflects our growth and commitment to the jewellery manufacturing industry.

50+ Master Alloy Formulations
5 Alloy Categories
9–22 Carat Range Supported
100% Cadmium Free Solders

Our Range

Developed for common jewellery manufacturing applications

Yellow Gold Master Alloys

18 formulations covering 9–22 carat, including Indian Yellow, American Yellow, and standard 3N/4N grades for casting and cold working.

White Gold Master Alloys

Nickel-free and nickel-bearing options from 10–18 carat, engineered for consistent whiteness and smooth casting performance.

Rose & Red Gold Master Alloys

Light and dark rose pink formulations for casting and cold working, delivering reliable colour consistency across production batches.

Solder Alloys

Cadmium-free solder alloys for gold jewellery in easy, medium, and hard grades — covering 10, 14, 18, and 22 carat yellow, white, and rose gold.

Sterling Silver Alloys

SP 707 Superior Anti-Tarnish Silver Master Alloy with fire stain resistance and extraordinary whiteness for 75–92.5% silver applications.

Fashion & Imitation Jewellery Alloys

Brass and zinc-base master alloys for fashion jewellery in bright yellow, bronze, and white colour variants for casting and cold working.

Who We Serve

Designed for jewellery manufacturers who value consistency

  • Casting units requiring repeatable melt behaviour
  • Manufacturers producing jewellery across multiple carats
  • Workshops managing colour consistency across batches
  • Operations focused on reducing rework and finishing variability
  • Teams looking for predictable performance under daily production conditions

Whether you produce fine jewellery, studded pieces, chains, or fashion jewellery — SPANGLE alloys are engineered to support stability and control in your process.

Technical Note

Application & Usage Guidance

The alloy data and specifications in our product range are indicative and intended to support jewellery manufacturing applications under standard operating conditions. Actual performance may vary depending on:

Furnace type and temperature control
Melting practices and alloying sequence
Casting methods and finishing processes

For application guidance or alloy selection support, our team can assist in identifying suitable formulations based on your manufacturing needs.

Talk to Our Team

Get in Touch

Reach Us

Registered Office

A118, Ghatkopar Industrial Estate,
Off L.B.S. Marg, Ghatkopar West,
Mumbai 400 086

Sales Office

74/76, Champa Gulli, 3rd Floor,
Office No. 4, Near Glitz Mall,
Zaveri Bazar, Mumbai 400 002