Molybdenum crucibles are mainly focused on its chemical composition, performance requirements, test methods, etc. Although there is no special international standard for molybdenum crucibles themselves, their related material standards, technical requirements and test specifications can be found in multiple standard systems. The following are some international standards involving molybdenum crucibles or similar materials:
1. ISO Standards (International Organization for Standardization)
ISO 9001: Although it is not a standard for molybdenum crucibles themselves, ISO 9001 is an international standard for quality management systems. Many molybdenum crucible manufacturers will follow this standard to ensure quality management in their production process.
ISO 13743: This is a standard related to molybdenum and molybdenum alloys, involving the technical requirements of molybdenum and its alloy materials. This standard has a certain reference value for the chemical composition, mechanical properties and other aspects of molybdenum crucibles.
ISO 10110-4: This is a standard for optical materials that addresses the surface quality requirements of materials that may apply when molybdenum crucibles are used for optics and crystal growth.
2. ASTM Standards (American Society for Testing and Materials)
ASTM B386: This is a standard specification for molybdenum and molybdenum alloys, involving the chemical composition, mechanical properties, etc. of molybdenum, and provides some standard references for molybdenum crucible materials. This standard is used to confirm whether the chemical purity, strength and other properties of the molybdenum crucible meet the requirements.
ASTM B387: Test method standard for molybdenum crucibles and molybdenum alloys, involving experiments and tests of molybdenum and its alloy materials, including tensile tests, compressive strength tests, etc.
ASTM B537: Standard specification for molybdenum alloy materials and products for molybdenum crucibles, also includes surface quality requirements and test methods for mechanical properties.
ASTM F15: This standard applies to the testing of molybdenum alloy materials in special high-temperature applications, including their performance requirements for high-temperature smelting, and involves the actual application scenarios of molybdenum crucibles.
3. JIS Standard (Japanese Industrial Standard)
JIS H 4100: This is a standard for molybdenum and molybdenum alloys, involving material requirements for molybdenum and its alloys. It is related to the production and application of molybdenum crucibles and can be used to guide the production of molybdenum crucibles.
JIS H 4020: Standards covering molybdenum materials, which may cover the material requirements for the use of molybdenum crucibles, especially when they are used in the electronics industry or metallurgical industry.
4. DIN Standard (German Industrial Standard)
DIN 17558: This standard deals with the requirements for molybdenum materials and their alloys and is applicable to high-temperature equipment materials, including molybdenum crucibles. It specifies the technical requirements and related performance standards for molybdenum alloys.
DIN 508: This standard covers the melting and forming process requirements of molybdenum crucibles and molybdenum alloy materials, and is applicable to the production and quality control of molybdenum crucibles.
5. GB Standard (China National Standard)
GB/T 16039: This is China’s standard for molybdenum and its alloys, involving technical requirements for molybdenum materials, and has certain reference value for the production and application of molybdenum crucibles.
GB/T 1959: This is a standard for molybdenum alloys, which specifies the chemical composition and performance requirements of molybdenum and its alloys, especially molybdenum materials used in metallurgy and high-temperature applications.
6. Other relevant standards
ISO 12944: Although it is mainly applicable to the corrosion protection standard of coating materials, it can also be indirectly applied to the surface protection requirements of molybdenum crucibles, especially for applications in corrosive environments.
ISO 6892: This is the standard for tensile testing of metallic materials and is often used to verify the strength and stress-bearing capacity of molybdenum crucibles.
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