Standard No.:	GB/T 12230-2005
Chinese Name:	通用阀门不锈钢铸件技术条件
English Name:	General purpose industrial valve——Specification of stainless steel castings
Professional Classification:	J16 Valve
Professional Classification:	GB National Standard
ICS Classification:	23.060.01 Valves in general
Issued by:
Issued on:	2005-07-11
Implemented on:	2006-01-01
Status:	VALID
Language:	English
File Format:	PDF
Word Count:
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1 Scope

This standard specifies chemical composition, mechanical performance, technical requirements and test and inspection of stainless steel castings for general purpose industrial valves.

This standard is applicable to such stainless steel castings as pressure-bearing valves, flange and pipe fittings used in high temperature and corrosive environment.

2 Normative References

The following standard contains provisions which, by reference into this document, constitute the provisions of this document. For dated references, subsequent amendments (excluding corrigendum contents) to, or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest editions of these documents are applicable. For undated references, the latest edition referred to apply.

GB/T 222 Method of Sampling Steel for Determination of Chemical Composition and Permissible Variations for Product Analysis
GB/T 223 (All Parts) Methods for Chemical Analysis of Iron, Steel and Alloy
GB/T 228 Metallic Materials-Tensile Testing at Ambient Temperature (GB/T 228-2002, eqv ISO 6892;1998)
GB/T 2100 Corrosion-resistant Steel Castings for General Applications (GB/T 2100-2002, eqv ISO 11972: 1998)
GB/T 4334 (All parts) Corrosion Test for Stainless Steels
GB/T 5613 Designation for Cast Steels
GB/T 5677 Methods of Radiographic Testing and Classification of Radiographs for Steel Castings(GB/T, 5677-1985, neq JCSS G2)
GB/T 6414 Castings-System of Dimensional Tolerances and Machining Allowances (GB/T 6414 - 1999, eqv ISO 8062:1994)
GB/T 7233 Methods for Ultrasonic Testing and for Specifying Quality Levels of Steel Castings (GB/T 7233-1987, neq BS 6208:1982)
GB/T 9443 Methods of Liquid Penetrant Testing and Classification of Indication for Steel Castings
GB/T 9452 Testing Method for Working Zone of Heat Treatment Furnace
GB/T 11351 Mass Tolerances for Castings
GB/T 13927 Pressure Testing for General Purpose Valves (GB/T 13927-1992, neq ISO 5208:1982)
GB/T 15169 Qualification Test of Welders—Fusion Welding for Steels (ISO/DIS 9606-1, IDT)