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REFERENCE DATA

Metals, Gemstones & Craft Reference

Publicly verifiable material constants and common craft ranges; confirm process values against your own workshop

Precious Metals & Alloys

Density, melting point and Vickers hardness (HV) constants. Shrinkage varies with process — see the craft tab

18K 黄金 (Au750)

75.0% Au + 12.5% Ag + 12.5% Cu

经典高定金工配比,色泽醇厚,延展性优越,适合精细戒爪与爪镶。

Density15.58 g/cm³
Melting Pt890 - 910 ℃
Hardness150 - 160 HV
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18K 白金 (Au750)

75.0% Au + 钯金/银/铜合金

经过精密固溶强化,硬度极高,牢固锁抓大克拉主石,经久耐磨。

Density15.65 g/cm³
Melting Pt920 - 950 ℃
Hardness180 - 210 HV
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18K 玫瑰金 (Au750)

75.0% Au + 22.25% Cu + 2.75% Ag

温暖粉红光晕,富含铜系固溶相,兼具高硬度与柔美现代视觉。

Density15.20 g/cm³
Melting Pt880 - 900 ℃
Hardness160 - 190 HV
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Pt950 铂金

95.0% Pt + 5.0% 钌/钴

沉稳厚重,耐酸碱永不褪色,超高熔点对失蜡铸造与水密拓扑提出极高要求。

Density20.70 g/cm³
Melting Pt1,770 ℃
Hardness135 - 145 HV
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925 银 (Sterling Silver)

92.5% Ag + 7.5% Cu

出色的导热与雕塑成形性能,是概念珠宝打版与先锋艺术银饰首选。

Density10.36 g/cm³
Melting Pt890 - 960 ℃
Hardness75 - 100 HV
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