GB/T 16253-2019 Steel castings for pressure purposes
1 Scope
This standard specifies the technical requirements, test methods, inspection rules, marking, quality instructions, packaging, transportation and storage of steel castings for pressure purposes, and supplementary requirements.
This standard is applicable to steel castings for pressure purposes made of carbon steel and alloy steel.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 223.3 Methods for chemical analysis of iron, steel and alloy - The diantipyryl methane phosphomolybdate gravimetric method for the determination of phosphorus content
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method (GB/T 223.5-2008, ISO 4829-1: 1986, ISO 4829-2: 1988, MOD)
GB/T 223.9 Iron, steel and alloy - Determination of aluminium content - Chrome azurol S photometric method
GB/T 223.11 Iron, steel and alloy - Determination of chromium content - Visual titration or potentiometric titration method (GB/T 223.11-2008, ISO 4937: 1986, MOD)
GB/T 223.14 Methods for chemical analysis of iron, steel and alloy - The N-benzoy-N-phenylhydroxylamine extraction photometric method for the determination of vanadium content
GB/T 223.18 Methods for chemical analysis of iron, steel and alloy - The sodium thiosulfate separation iodimetric method for the determination of copper content
GB/T 223.22 Methods for chemical analysis of iron, steel and alloy - The nitroso-R-salt spectrophotometric method for the determination of cobalt content
GB/T 223.23 Iron, steel and alloy - Determination of nickel content - The dimethylglyoxime spectrophotometric method
GB/T 223.25 Methods for chemical analysis of iron, steel and alloy - The dimethylglyoxime gravimetric method for the determination of nickel content
GB/T 223.26 Iron, steel and alloy - Determination of molybdenum content - The thiocyanate spectrophotometric method
GB/T 223.28 Methods for chemical analysis of iron steel and alloy - The α-benzoinoxime gravimetric method for the determination of molybdenum content
GB/T 223.30 Methods for chemical analysis of iron, steel and alloy - The arsenazo III spectrophotometric method for the determination of zirconium content after separation by p-bromomandelic acid
GB/T 223.36 Methods for chemical analysis of iron, steel and alloy - The neutral titration method for the determination of nitrogen content after distillation separation
GB/T 223.58 Methods for chemical analysis of iron, steel and alloy - The sodium arsenite-sodium nitrite titrimetric method for the determination of manganese content
GB/T 223.60 Methods for chemical analysis of iron, steel and alloy - The perchloric acid dehydration gravimetric method for the determination of silicon content
GB/T 223.63 Methods for chemical analysis of iron, steel and alloy - The sodium (potassium) periodate photometric method for the determination of manganese content
GB/T 223.65 Steel, iron and alloy - Determination of cobalt content - Flame atomic absorption spectrometric method (GB/T 223.65-2012, ISO 11652: 1997, MOD)
GB/T 223.75 Iron, steel and alloy - Determination of boron content - Methanol distillation-curcumin photometric method
GB/T 223.78 Methods for chemical analysis of iron, steel and alloy - Curcumin spectrophotometric method for the determination of boron content (GB/T 223.78-2000, idt ISO 10153: 1997)
GB/T 223.81 Iron, steel and alloy - Determination of total aluminum and total boron contents - Microwave digestion-inductively coupled plasma mass spectrometric method
GB/T 223.84 Steel, iron and alloy - Determination of titanium content - Diantipyrylmethane spectrophotometric method (GB/T 223.84-2009, ISO 10280: 1991, IDT)
GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace (GB/T 223.8-2009, ISO 4935: 1989, IDT)
GB/T 223.86 Steel and iron - Determination of total carbon content - Infrared absorption method after combustion in an induction furnace (GB/T 223.86-2009, ISO 9556: 1989, IDT)
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature (GB/T 228.1-2010, ISO 6892-1:2009, MOD)
GB/T 228.2 Metallic materials - Tensile testing - Part 2: Method of test at elevated temperature (GB/T 228.2-2015, ISO 6892-2: 2011, MOD)
GB/T 229 Metallic materials - Charpy pendulum impact test method (GB/T 229-2007, ISO 148-1:2006, MOD)
GB/T 230.1 Metallic materials - Rockwell hardness test - Part 1: Test method (GB/T 230.1-2018, ISO 6508-1: 2016, MOD)
GB/T 231.1 Metallic materials - Brinell hardness test - Part 1: Test method (GB/T 231.1-2018, ISO 6506-1: 2014, MOD)
GB/T 2039 Metallic materials - Uniaxial creep testing method in tension (GB/T 2039-2012, ISO 204: 2009, MOD)
GB/T 4334 Corrosion of metals and alloys - Test methods for intergranular corrosion of stainless steels (GB/T 4334-2008, ISO 3651-1: 1998. ISO 3651-2: 1998, MOD)
GB/T 4336 Carbon and low-alloy steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (routine method)
GB/T 4340.1 Metallic materials - Vickers hardness test - Part 1: Test method (GB/T 4340.1-2009, ISO 6507-1: 2005, MOD)
GB/T 5677 Castings - Radiographic testing (GB/T 5677-2018, ISO 4993: 2015, MOD)
GB/T 5678 Sampling methods of spectrochemical analysis for cast alloys
GB/T 6060.1 Surface roughness comparison specimen - Part 1: Casting surface
GB/T 6414 Castings - System of dimensional tolerances, geometrical tolerancing and machining allowances (GB/T 6414-2017, ISO 8062-3: 2007, MOD)
GB/T 6967-2009 Martensitic stainless steel castings for general engineering application (ISO 11972: 1998, ISO 4990: 2003, MOD)
GB/T 7233.1 Steel castings - Ultrasonic examination - Part 1: Steel castings for general purposes (GB/T 7233.1-2009, ISO 4992-1: 2006, MOD)
GB/T 7233.2 Steel castings - Ultrasonic testing - Part 2: Steel castings for highly stressed components (GB/T 7233.2-2010, ISO 4992-2: 2006, MOD)
GB/T 9443 Penetrant testing for steel castings (GB/T 9443-2019, ISO 4987: 2010, MOD)
GB/T 9444 Steel and iron castings - Magnetic particle inspection (GB/T 9444-2019, ISO 4986: 2010, MOD)
GB/T 11170 Stainless steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (routine method)
GB/T 11351 Mass tolerances for castings
GB/T 12778 Determination of Charpy impact fracture surface for metallic materials
GB/T 15056 Casting surface roughness - Appraising method
GB/T 20066 Steel and iron - Sampling and preparation of samples for the determination of chemical composition (GB/T 20066-2006, ISO 14284: 1996, IDT)
GB/T 20123 Steel and iron - Determination of total carbon and sulfur content - Infrared absorption method after combustion in an induction furnace (routine method) (GB/T 20123-2006, ISO 15350: 2000, IDT)
GB/T 20124 Steel and iron - Determination of nitrogen content - Thermal conductimetric method after fusion in a current of inert gas (routine method) (GB/T 20124-2006, ISO 15351: 1999, IDT)
GB/T 20125 Low-alloy steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method
GB/T 33362 Metallic materials - Conversion of hardness values (GB/T 33362-2016, ISO 18265: 2013, IDT)
GB/T 35690 Methods for the determination of the relative magnetic permeability of feebly magnetic materials (GB/T 35690-2017, IEC 60404-15: 2016, MOD)
SN/T 0750 Import and export carbon steel and low alloyed steel - Determination of aluminium arsenic chromium cobalt copper phosphorus mangaanese molybdenum nickel silicon tin titanium and vanadium content - Inductively coupled plasma atomic emission spectrometric method (ICP-AES)
SN/T 2718 Determination of chemical composition in stainless steel - Inductively coupled plasma atomic emission spectrometric method
SN/T 3343 Determination of manganese, phosphorus, silicon, chromium, nickel, copper, molybdenum, and titanium in stainless steel - Inductively coupled plasma atomic emission spectrometric method
SN/T 3806 Import and export carbon steel and alloyed steel - Determination of niobium, boron, tungsten and zirconium content - Inductively coupled plasma atomic emission spectrometric method
3 Technical requirements
3.1 General requirements
3.1.1 When required in the contract, the castings produced for the first time, their procedures, technical documents, etc. shall be approved by both the supplier and the purchaser.
3.1.2 Supplemental requirements for steel castings for pressure purposes in Annex B may be selected by the purchaser as necessary, and information may be provided with reference to Annex C; the technical requirements and inspection rules of the selected items, if not stipulated in this standard, shall be agreed upon by the supplier and the purchaser and stated in the contract.
3.2 Grade and chemical composition
The grade of cast steels and the chemical composition of their castings shall meet those specified in Table 1.
Foreword i
1 Scope
2 Normative references
3 Technical requirements
4 Test methods
5 Inspection rules
6 Marking, quality certificate, packaging, transportation and storage
7 Supplementary requirements
Annex A (Informative) Comparison between clause/subclause numbers in this standard and those in ISO 4991: 2015
Annex B (Normative) Supplementary requirements for inspection items
Annex C (Informative) Information to be provided by the purchaser in ordering casting products
Annex D (Informative) Comparison for cast steel grades in ISO 4991: 2015
Annex E (Informative) Permissible deviation of check analysis results and melting analysis results
Annex F (Informative) Nominal creep behavior of partial cast steel
Annex G (Informative) Welding conditions
