Kazirg Steel grades — Wikipedia Click here to find out to access this document. If the symbols for group 1 are inadequate to describe the steel fully, then additional symbols from group 2 may be added. API 5B and 5CT provide various steel grades and color codes of each grade, detailed and overall information of casing and tubing, which help you clearly pick out the most suitable products for different well application. Worldwide Standards We can source any standard from anywhere in the world.
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Structure of steel names This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February , and conflicting national standards shall be withdrawn at the latest by February EN E Scope 1.
NOTE In the English language the designations covered by this European Standard are known as steel names; in the French language as designation symbolique; in the German language as Kurznamen. Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document including any amendments applies. In order to avoid ambiguity, it may be necessary to supplement these principal symbols by additional symbols identifying additional characteristics of the steel or steel product, e.
These additional symbols are given in 7. Unless otherwise specified in this European Standard the symbols used in the steel name shall be written without spaces. EN E 4.
So as to avoid a variety of steel names being assigned to essentially the same steel, the European Registration Office as provided for in EN shall, when a steel number is applied for, cooperate with the national standards body concerned to ensure uniform steel names. Reference to product standards The complete designation of a steel product where quoted in orders or similar contractual documents shall include, in addition to the steel name, an indication of the technical delivery requirement in which the steel is specified.
For steels specified in standards this shall be the reference number of the relevant product standard. Details of the structures of the steel name for the steel or steel product shall be provided in the relevant product or dimensional standard. For the purposes of designation, steel names are classified into two main categories: Category 1: steels designated according to their application and mechanical or physical properties see 7.
Category 2: steels designated according to their chemical composition see 7. Structure of steel names Principal symbols for steels designated according to steel application and its mechanical and physical properties shall be assigned in accordance with 7.
Principal symbols for steels designated according to the chemical composition of the steel shall be assigned in accordance with 7. Where a steel is specified in the form of a steel casting, its name as specified in Tables 1 to 15 shall be preceded by the letter G. Where a steel is produced by powder metallurgy, its name as specified in Tables 14 and 15 shall be preceded by the letters PM.
EN E 7. Additional symbols are divided into two groups, i. If the symbols for group 1 are inadequate to describe the steel fully, then additional symbols from group 2 may be added. Symbols of group 2 shall only be used in conjunction with and follow symbols of group 1. Further additional symbols for steel products may follow the additional symbols of group 1 and group 2 and shall be selected in accordance with 7. EN E.
UNE EN 10027-1:2017