noun
heat-resistant alloy
Technical term used in materials science and engineering for alloys designed to withstand high temperatures.
ジェットエンジンには耐熱合金が使われている。
Heat-resistant alloys are used in jet engines.
耐熱鋼 specifically refers to heat-resistant steel, while 耐熱合金 is a broader term covering various alloy types.
Compound of 耐熱 (heat-resistant) and 合金 (alloy).