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JB/T 7248-2008   Technical specification for low temperature service steel casting for valves (English Version)
Standard No.: JB/T 7248-2008 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 5000 words Price(USD):150.0 remind me the price change

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Implemented on:2008-7-1 Delivery: via email in 1 business day
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Standard No.: JB/T 7248-2008
English Name: Technical specification for low temperature service steel casting for valves
Chinese Name: 阀门用低温钢铸件技术条件
Chinese Classification: J16    Valve
Professional Classification: JB    Professional Standard - Machinery
ICS Classification: 23.060.99 23.060.99    Other valves 23.060.99
Issued by: NDRC
Issued on: 2008-2-1
Implemented on: 2008-7-1
Status: valid
Superseding:JB/T 7248-1994
Language: English
File Format: PDF
Word Count: 5000 words
Price(USD): 150.0
Delivery: via email in 1 business day
Technical specification for low temperature service steel casting for valves 1 Scope This standard specifies the technical requirements, test methods, inspection rules and markings of low temperature service steel casting for valves (hereinafter referred to as "castings"). This standard is applicable to valves, flanges and other pressure bearing castings used under low temperature conditions of -254 °C ~ -29 °C. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this national standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies. GB/T 222-2006 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 228-2002 Metallic materials — Tensile testing at ambient temperature (ISO 6892:1998(E), MOD) GB/T 229-1994 Metallic materials — Charpy notch impact test (eqv ISO 148:1983) GB/T 6414-1999 Castings — System of dimensional tolerances and machining allowances (eqv ISO 8062:1994) GB/T 9452-2003 Testing method for work zone of heat treatment furnace GB/T 11352-1989 Carbon steel castings for general engineering purposes (neq ISO 3755:1991) GB/T 12224-2005 General requirements for industrial steel valves GB/T 12230-2005 General purpose industrial valve — Specification of stainless steel castings GB/T 12467.1 ~ 12467.4-1998 Quality assurance of welding — General principle (idt ISO 3834-1 ~ 3834-4:1994) GB/T 13927 Pressure testing for general purpose valves (GB/T 13927-1992, neq ISO 5208:1982) GB/T 15169-2003 Qualification test of welders — Fusion welding for steels (ISO/DIS 9606-1:2002, IDT) JB/T 6439 Methods of magnetic examination for valves JB/T 6440 Methods of radiographic examination for steel castings valves JB/T 6902 Methods for liquid penetrant examination of valves JB/T 7927 Valve cast steel visual quality requirements ASTM A351/A351M Standard specification for castings, austenitic, for pressure-containing parts ASTM A352/A352M Standard specification for steel castings, ferritic and martensitic, for pressure-containing parts, suitable for low-temperature service 3 Technical requirements 3.1 Material designation and service temperature See Table 1 for material designation and service temperature of castings. Table 1 Material designation and service temperature of castings
Foreword i 1 Scope 2 Normative references 3 Technical requirements 3.1 Material designation and service temperature 3.2 Chemical composition and mechanical properties 3.3 Heat treatment 3.4 Quality requirements 3.5 Repair welding 4 Test methods and inspection rules 4.1 Chemical analysis 4.2 Mechanical properties 4.3 Nondestructive testing 4.4 Purchaser inspection 5 Marking Table 1 Material designation and service temperature of castings Table 2 Chemical compositions of castings (mass fraction) Table 3 Mechanical properties of castings Table 4 Minimum preheating temperature
Referred in JB/T 7248-2008:
*GB/T 222-2006 Permissible Tolerances for Chemical Composition of Steel Products
*GBT223-
*GB/T 228-2002 Metallic Materials – Tensile Testing at Ambient Temperature
*GB/T 229-1994 Charpy Notch Impact Test
*GB/T 6414-1999 Castings - System of Dimensional Tolerances and Machining Allowances
*GB/T 9452-2003 Testing method for work zone of heat treatment furnace
*GB/T 11352-1989 Carbon steel castings for general engineering purposes
*GB/T 12224-2005 General requirements for industrial steel valves
*GB/T 12230-2005 General purpose industrial valve - Specification of stainless steel castings
*GB/T 12467.1-2009 Quality requirements for fusion welding of metallic materials—Part 1:Criteria for the selection of the appropriate level of quality requirements
*GB/T 13927-2008 Industrial Valves-Pressure Testing
*GB/T 15169-2003 Qualification test of welders - Fusion welding for steels
*JB/T 6439-2008 Methods of magnetic examination for valves
*JB/T 6440-2008 Methods of radiographic examination for steel castings valves
*JB/T 6902-2008 Methods for liquid penetrant examination of valves
*JB/T 7927-2014 Valve Cast Steel Visual Quality Requirements
JB/T 7248-2008 is referred in:
* HG/T 20592-2009 Stee1 Pipe F1anges (PN designated)
* GB/T 9124-2010 Specification for steel pipe flanges
* HG/T 20615-2009 Steel Pipe Flanges
* GB/T 9124-2010 Specification for steel pipe flanges
* HG/T 20592-2009 Stee1 Pipe F1anges (PN designated)
* HG/T 20615-2009 Steel Pipe Flanges
* HG/T 20592~20635-2009 Steel pipe flanges,gaskets and bolting
*GB/T 22653-2008 Emergency shutoff valve for LG equipment
*GB/T 24918-2010 Cryogenic emergency shutoff valve
*GB/T 12224-2015 General requirements for industrial steel valves
*GB/T 24925-2019 Low temperature valve—Technical specifications
*GB/T 20801.2-2020 Pressure piping code - Industrial piping - Part 2: Materials
*GB/T 9124.1-2019 Steel pipe flanges—Part 1:PN designated
*GB/T 22652-2019 Overlaying-welding procedure qualification for valves sealing face
*HG/T 20592-20635-2009 Steel pipe flanges,gaskets and bolting
*GB/T 9124.2-2019 Steel pipe flanges—Part 2:Class designated
*T/CGMA 0407-2022 Cryogenic valves for hydrogen ― General technical specifications
Code of China
Standard
JB/T 7248-2008   Technical specification for low temperature service steel casting for valves (English Version)
Standard No.JB/T 7248-2008
Statusvalid
LanguageEnglish
File FormatPDF
Word Count5000 words
Price(USD)150.0
Implemented on2008-7-1
Deliveryvia email in 1 business day
Detail of JB/T 7248-2008
Standard No.
JB/T 7248-2008
English Name
Technical specification for low temperature service steel casting for valves
Chinese Name
阀门用低温钢铸件技术条件
Chinese Classification
J16
Professional Classification
JB
ICS Classification
Issued by
NDRC
Issued on
2008-2-1
Implemented on
2008-7-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
JB/T 7248-1994
Language
English
File Format
PDF
Word Count
5000 words
Price(USD)
150.0
Keywords
JB/T 7248-2008, JB 7248-2008, JBT 7248-2008, JB/T7248-2008, JB/T 7248, JB/T7248, JB7248-2008, JB 7248, JB7248, JBT7248-2008, JBT 7248, JBT7248
Introduction of JB/T 7248-2008
Technical specification for low temperature service steel casting for valves 1 Scope This standard specifies the technical requirements, test methods, inspection rules and markings of low temperature service steel casting for valves (hereinafter referred to as "castings"). This standard is applicable to valves, flanges and other pressure bearing castings used under low temperature conditions of -254 °C ~ -29 °C. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this national standard. For dated references, subsequent amendments (excluding corrections) to, or revisions, of any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies. GB/T 222-2006 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 228-2002 Metallic materials — Tensile testing at ambient temperature (ISO 6892:1998(E), MOD) GB/T 229-1994 Metallic materials — Charpy notch impact test (eqv ISO 148:1983) GB/T 6414-1999 Castings — System of dimensional tolerances and machining allowances (eqv ISO 8062:1994) GB/T 9452-2003 Testing method for work zone of heat treatment furnace GB/T 11352-1989 Carbon steel castings for general engineering purposes (neq ISO 3755:1991) GB/T 12224-2005 General requirements for industrial steel valves GB/T 12230-2005 General purpose industrial valve — Specification of stainless steel castings GB/T 12467.1 ~ 12467.4-1998 Quality assurance of welding — General principle (idt ISO 3834-1 ~ 3834-4:1994) GB/T 13927 Pressure testing for general purpose valves (GB/T 13927-1992, neq ISO 5208:1982) GB/T 15169-2003 Qualification test of welders — Fusion welding for steels (ISO/DIS 9606-1:2002, IDT) JB/T 6439 Methods of magnetic examination for valves JB/T 6440 Methods of radiographic examination for steel castings valves JB/T 6902 Methods for liquid penetrant examination of valves JB/T 7927 Valve cast steel visual quality requirements ASTM A351/A351M Standard specification for castings, austenitic, for pressure-containing parts ASTM A352/A352M Standard specification for steel castings, ferritic and martensitic, for pressure-containing parts, suitable for low-temperature service 3 Technical requirements 3.1 Material designation and service temperature See Table 1 for material designation and service temperature of castings. Table 1 Material designation and service temperature of castings
Contents of JB/T 7248-2008
Foreword i 1 Scope 2 Normative references 3 Technical requirements 3.1 Material designation and service temperature 3.2 Chemical composition and mechanical properties 3.3 Heat treatment 3.4 Quality requirements 3.5 Repair welding 4 Test methods and inspection rules 4.1 Chemical analysis 4.2 Mechanical properties 4.3 Nondestructive testing 4.4 Purchaser inspection 5 Marking Table 1 Material designation and service temperature of castings Table 2 Chemical compositions of castings (mass fraction) Table 3 Mechanical properties of castings Table 4 Minimum preheating temperature
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