ASTM A550-16 (R2021) pdf free download.Standard Specification for Ferrocolumbium (Ferroniobium).
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 standard
-ization established in the Decision on Principles for the Development of International Standards , Guides and Recom
-mendations issued by the World Trade Organization Technical Barriers to Trade ( TBT ) Committee .
2 . Referenced Documents
2.1 ASTM Standards .
A1025 / A1025M Specification for Ferroalloys and Other Alloying Materials , General Requirements
E11 Specification for Woven Wire Test Sieve Cloth and Test Sieves
3 . General Conditions for Delivery
3 . I Materials furnished to this specification shall conform to the requirements of Specification A1025 / A 1025M , includin any supplementary requirements that are indicated in the purchase order . Failure to comply with the general requirements of Specification A1025 / A 1025M constitutes nonconformmance with this specification . In case of conflict between the requirements of this specification and Specification A1025 / A1025M , this specification shall prevail
4 . Chemical Composition
4 . 1 The material shall conform to the requirements as to chemical composition specified in Tables I and 2 . The manu
facturer shall furnish an analysis of each shipment showing the percentage of each element specified in Table I
4 . 2 For elements specified in Table 2 an analysis of each lot is not required . Upon request of the purchaser , the manufacturer shall supply the results of an analysis for the elements specified in Table 2 on a cumulative basis over a period mutually agreed upon by the manufacturer and the purchaser .
5 . Sizing
5.1 Ferrocolumbium ( ferroniobium ) is available in sizes and to tolerances shown in Table 3
6 . Keywords
6.1 columbium ( niobium ) ; ferrocolumbium(ferroniobium ) santalum.ASTM A550 pdf download.