Melting Point

Melting Point refers to the temperature at which a substance changes from solid to liquid. It is a key physical indicator for materials such as metals, plastics, and chemicals. In foreign trade, melting point is often used to describe product specifications and quality, especially affecting transportation, storage, and processing conditions. For example, when exporting paraffin wax, metal ingots, or plastic raw materials, contracts or letters of credit often require specifying the melting point range. Usage scenarios include: product specifications, quality inspection reports, MSDS (Material Safety Data Sheet), and contract quality clauses. Precautions: Different materials may have different melting point test methods (e.g., ASTM, ISO), so the standard must be specified; the melting point level affects shipping temperature requirements (e.g., may solidify at low temperatures) and also involves tariff classification (HS codes may be based on melting point). Difference from other terms: Melting point is different from softening point (the temperature at which amorphous materials gradually soften) and drop melting point (the temperature at which the first drop of liquid falls under specific test conditions). Foreign trade practitioners should accurately understand customers' specific requirements for melting point to avoid returns or claims due to non-conforming indicators.