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ASTM A550-16(2025)

Standard Specification for Ferrocolumbium (Ferroniobium)
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ASTM A550-16(2025)

Standard Specification for Ferrocolumbium (Ferroniobium)

PUBLISH DATE 2025
PAGES 3
ASTM A550-16(2025)

This specification covers three grades of ferrocolumbium, designated:

  • low-alloy steel grade,
  • alloy and stainless steel grade, and
  • high-purity grade.

The material shall conform to the requirements as to chemical composition. Also, the ferrocolumbium shall be available in the sizes and tolerances specified.

1.1 This specification covers three grades of ferrocolumbium (ferroniobium), designated Low-Alloy Steel Grade, Alloy and Stainless Steel Grade, and High-Purity Grade.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

SDO ASTM: ASTM International
Document Number A550
Publication Date Sept. 1, 2025
Language en - English
Page Count 3
Revision Level 16(2025)
Supercedes
Committee A01.18
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