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Position: Chinese Standard in English/CB/T 773-1998
CB/T 773-1998   Technical requirements for structure steel forging (English Version)
Standard No.: CB/T 773-1998 Status:superseded remind me the status change

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Language:English File Format:PDF
Word Count: 5000 words Price(USD):200.0 remind me the price change

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Implemented on:1998-8-1 Delivery: via email in 1 business day
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Standard No.: CB/T 773-1998
English Name: Technical requirements for structure steel forging
Chinese Name: 结构钢锻件技术条件
Chinese Classification: U05    Vessel materials and their inspection methods
Professional Classification: CB    Professional Standard - Watercraft
ICS Classification: 47.020.05 47.020.05    Materials and components for shipbuilding 47.020.05
Issued by: COSTIND
Issued on: 1998-3-20
Implemented on: 1998-8-1
Status: superseded
Superseded by:CB/T 4494-2019
Superseded on:2019-11-1
Superseding:CB 773-1986
Language: English
File Format: PDF
Word Count: 5000 words
Price(USD): 200.0
Delivery: via email in 1 business day
Technical requirements for structure steel forging 1 Scope This standard specifies the requirements of structure steel forgings for ships (hereinafter referred to as “forgings”), test methods, inspection rules, marks and quality certificates. This standard is applicable to the manufacture and acceptance of carbon structural steel, carbon manganese structural steel, alloy structural steel, stainless acid-resistant steel, heat-resistant non-scaling steel and other forgings forged freely on marine hammers (including swage forgings). 2 Normative references The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all editions listed were valid. All normative references used are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the normative standards indicated below. GB 222-84 Method of sampling steel for determination of chemical composition and permissible variations for product analysis GB 223.5-88 Methods for chemical analysis of iron, steel and alloy - oxalic acid - Oxalic acid - ferrous sulfate silicon and molybdenum blue photometric method for the determination of silicon GB/T 223.12-91 Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content GB 223.26-89 Methods for chemical analysis of iron, steel and alloy - The thiocyanate direct photometric method for the determination of molybdenum content GB 223.53-87 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of copper content GB 223.54-87 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of nickel content GB 223.59-87 Methods for chemical analysis of iron, steel and alloy- The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content GB 223.63-88 Methods for chemical analysis of iron, steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese content GB 223.68-89 Methods for chemical analysis of iron, steel and alloy - The combustion potassium iodate volumetric method for the determination of sulfur content GB 223.69-89 Methods for chemical analysis of iron, steel and alloy - The gas- volumetric method after combustion for the determination of carbon content GB 228-87 Metallic materials - Tensile testing GB/T 229-1994 Metallic Materials - Charpy Notch Impact Test GB 231-84 Metallic materials - Brinell hardness test GB 699-88 Quality carbon structure steel - Technical requirements GB 1220-92 Stainless steel bars GB 1221-92 Heat-resisting steel bars GB 3077-88 Alloy structure steel - Technical requirements 3 Requirements 3.1 Manufacture 3.1.1 Steel for forging shall be made of killed steel. 3.1.2 Steel ingots and rolled products used in forging shall have smelting furnace numbers and qualified chemical composition. The purchased billet shall also be accompanied by a certificate of mechanical properties. Other relevant billet acceptance requirements beyond those specified in this standard shall be negotiated by the supplier and the purchaser. 3.1.3 Ingots or billets shall have no slag inclusion, gas hole, scab, crack, fold, overburning and other defects before forging. All defects shall be cleaned before forging, and inspected for qualification by the inspection department before putting into use. 3.1.4 The ingot casting head and bottom shall be cut off. 3.1.5 The forging process shall be determined by the supplier. 3.2 Chemical composition 3.2.1 The chemical composition of forgings for hull structures shall be in accordance with those specified in Table 1.
Foreword i 1 Scope 2 Normative references 3 Requirements 4 Test methods 5 Inspection rules 6 Marking and quality certificate Annex A (Normative) Strength grade of carbon steel and carbon manganese steel forgings Annex B (Normative) Strength grade of alloy steel forgings
Referred in CB/T 773-1998:
*GB 222-1984 Method of sampling steel for determination of chemical composition and permissible variations for product analysis
*GB223.5-1988
*GB/T 223.12-1991 Methods for chemical analysis of iron,steel and alloy--The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content
*GB 223.26-1989 Methods for chemical analysis of iron steel and alloy; The thiocyanate direct photometric method for the Determination of molybderum content
*GB 223.53-1987 Methods for chemical analysis of iron,steel and alloy; The flame atomic absorption spectrophotometric method for the determination of copper content
*GB 223.54-1987 Methods for chemical analysis of iron,steel and alloy; The flame atomic absorption spectrophotometric method for the determination of nickel content
*GB 223.59-1987 Methods for chemical analysis of iron,steel and alloy; The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content
*GB 223.63-1988 Methods for chemical analysis of iron, steel and alloy; The sodium(potassium)periodate photometric method for the determination of manganese content
*GB223.68-1989
*GB223.69-1989
*GB228-1987
*GB/T 229-1994 Charpy Notch Impact Test
*GB231-1984
*GB699-1988
*GB 1220-1992 Stainless steel bars
*GB 1221-1992 Heat-resisting steel bars
*GB 3077-1988 Alloy structure steel--Technical requirements
CB/T 773-1998 is referred in:
* GB/T 5745-2010 Marine disc separator
*CB/T 3669-2013 Slewing bearing of crane for ship
Code of China
Standard
CB/T 773-1998  Technical requirements for structure steel forging (English Version)
Standard No.CB/T 773-1998
Statussuperseded
LanguageEnglish
File FormatPDF
Word Count5000 words
Price(USD)200.0
Implemented on1998-8-1
Deliveryvia email in 1 business day
Detail of CB/T 773-1998
Standard No.
CB/T 773-1998
English Name
Technical requirements for structure steel forging
Chinese Name
结构钢锻件技术条件
Chinese Classification
U05
Professional Classification
CB
ICS Classification
Issued by
COSTIND
Issued on
1998-3-20
Implemented on
1998-8-1
Status
superseded
Superseded by
CB/T 4494-2019
Superseded on
2019-11-1
Abolished on
Superseding
CB 773-1986
Language
English
File Format
PDF
Word Count
5000 words
Price(USD)
200.0
Keywords
CB/T 773-1998, CB 773-1998, CBT 773-1998, CB/T773-1998, CB/T 773, CB/T773, CB773-1998, CB 773, CB773, CBT773-1998, CBT 773, CBT773
Introduction of CB/T 773-1998
Technical requirements for structure steel forging 1 Scope This standard specifies the requirements of structure steel forgings for ships (hereinafter referred to as “forgings”), test methods, inspection rules, marks and quality certificates. This standard is applicable to the manufacture and acceptance of carbon structural steel, carbon manganese structural steel, alloy structural steel, stainless acid-resistant steel, heat-resistant non-scaling steel and other forgings forged freely on marine hammers (including swage forgings). 2 Normative references The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. At the time of publication, all editions listed were valid. All normative references used are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the normative standards indicated below. GB 222-84 Method of sampling steel for determination of chemical composition and permissible variations for product analysis GB 223.5-88 Methods for chemical analysis of iron, steel and alloy - oxalic acid - Oxalic acid - ferrous sulfate silicon and molybdenum blue photometric method for the determination of silicon GB/T 223.12-91 Methods for chemical analysis of iron, steel and alloy - The sodium carbonate separation-diphenyl carbazide photometric method for the determination of chromium content GB 223.26-89 Methods for chemical analysis of iron, steel and alloy - The thiocyanate direct photometric method for the determination of molybdenum content GB 223.53-87 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of copper content GB 223.54-87 Methods for chemical analysis of iron, steel and alloy - The flame atomic absorption spectrophotometric method for the determination of nickel content GB 223.59-87 Methods for chemical analysis of iron, steel and alloy- The reduced molybdoantimonyl phosphoric acid photometric method for the determination of phosphorus content GB 223.63-88 Methods for chemical analysis of iron, steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese content GB 223.68-89 Methods for chemical analysis of iron, steel and alloy - The combustion potassium iodate volumetric method for the determination of sulfur content GB 223.69-89 Methods for chemical analysis of iron, steel and alloy - The gas- volumetric method after combustion for the determination of carbon content GB 228-87 Metallic materials - Tensile testing GB/T 229-1994 Metallic Materials - Charpy Notch Impact Test GB 231-84 Metallic materials - Brinell hardness test GB 699-88 Quality carbon structure steel - Technical requirements GB 1220-92 Stainless steel bars GB 1221-92 Heat-resisting steel bars GB 3077-88 Alloy structure steel - Technical requirements 3 Requirements 3.1 Manufacture 3.1.1 Steel for forging shall be made of killed steel. 3.1.2 Steel ingots and rolled products used in forging shall have smelting furnace numbers and qualified chemical composition. The purchased billet shall also be accompanied by a certificate of mechanical properties. Other relevant billet acceptance requirements beyond those specified in this standard shall be negotiated by the supplier and the purchaser. 3.1.3 Ingots or billets shall have no slag inclusion, gas hole, scab, crack, fold, overburning and other defects before forging. All defects shall be cleaned before forging, and inspected for qualification by the inspection department before putting into use. 3.1.4 The ingot casting head and bottom shall be cut off. 3.1.5 The forging process shall be determined by the supplier. 3.2 Chemical composition 3.2.1 The chemical composition of forgings for hull structures shall be in accordance with those specified in Table 1.
Contents of CB/T 773-1998
Foreword i 1 Scope 2 Normative references 3 Requirements 4 Test methods 5 Inspection rules 6 Marking and quality certificate Annex A (Normative) Strength grade of carbon steel and carbon manganese steel forgings Annex B (Normative) Strength grade of alloy steel forgings
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Keywords:
CB/T 773-1998, CB 773-1998, CBT 773-1998, CB/T773-1998, CB/T 773, CB/T773, CB773-1998, CB 773, CB773, CBT773-1998, CBT 773, CBT773