GB/T 2100-2026 Corrosion-resistant cast steels for general applications
1 Scope
This document specifies the manufacturing, technical requirements, test methods, inspection rules, marking, quality certificates, packaging, transport and storage of corrosion-resistant cast steels for general applications (hereinafter referred to as “casting”).
This document applies to the manufacturing of corrosion-resistant cast steels for general applications for various corrosive service conditions.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 222 Steels and alloys - Permissible deviations of product analyzed chemical composition
GB/T 223.4 Alloyed steel - Determination of manganese content - Potentiometric or visual titration method
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 223.11 Iron, steel and alloy - Determination of chromium content - Titrimetric method and spectrophotometric method
GB/T 223.13 Iron, steel and alloy - Determination of vanadium content- Titrimetric method and spectrophotometric method
GB/T 223.19 Methods for chemical analysis of iron steel and alloy; The neocuproine-chloroform extraction photometric method for the determination of copper 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 223.37 Iron, steel and alloy - Determination of nitrogen content - Indophenol blue spectrophotometric method after distillation separation
GB/T 223.40 Iron steel and alloy - Determination of niobium content by the sulphochlorophenol S spectrophotometric method
GB/T 223.43 Iron steel and alloy - Determination of tungsten content - Gravimetric method and spectrophotometric method
GB/T 223.61 Methods for chemical analysis of iron, steel and alloy - The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
GB/T 223.69 Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
GB/T 223.84 Steel and iron - Determination of titanium content - Diantipyrylmethane spectrophotometric method
GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 229 Metallic materials - Charpy pendulum impact test method
GB/T 4334 Corrosion of metals and alloys - Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels
GB/T 5611 Foundry terminology
GB/T 5613 Designation for cast steels
GB/T 5677 Castings - Radiographic testing
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 7233.1 Steel castings - Ultrasonic examination - Part 1: Steel castings for general purposes
GB/T 9443 Steel and iron castings - Liquid penetrant inspection
GB/T 9444 Steel and iron castings - Magnetic particle inspection
GB/T 11170 Stainless steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (Routine method)
GB/T 11351 Mass tolerances of casting
GB/T 13305 Method for determining content of the α-phase in stainless steels
GB/T 14203 General rules for spark discharge atomic emission spectrometry
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 39428 Steel castings by sand casting - Visual examination method of surface quality
GB/T 39638 X-ray digital radiographic testing for casting
GB/T 40800 Specification and qualification of welding procedures for production welding of steel castings
GB/T 40805 Steel castings - General technical delivery requirements
GB/T 42124.3 Geometrical product specifications(GPS) - Dimensional and geometrical tolerances for moulded parts - Part 3:General dimensional and geometrical tolerances and machining allowances for castings
GB/T 45167 Steels, nickel alloys and cobalt alloys investment castings - Visual testing of surface quality
GB/T 45681 General technical specification for repair welding of steel castings
JB/T 6440 Methods of radiographic examination for steel castings valves
YB/T T 4396 Stainless steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 5611 and the following apply.
3.1
major welding repair
it is considered a major welding repair when the depth of the prepared groove for weld repair exceeds 25 mm or 40% of the wall thickness (whichever is smaller), or when the area of a single repair excavation exceeds 65 cm² (on the cast surface)
4 Manufacturing
4.1 Casting and heat treatment
4.1.1 Unless otherwise specified by the purchaser, the melting method and casting process shall be determined by the supplier.
4.1.2 Castings shall be subjected to heat treatment. The heat treatment process shall be determined by the supplier. The heat treatment processes for castings are given in Annex A.
4.2 Welding repair
4.2.1 Except where special provisions prohibit welding repair, defects in castings may be repaired by welding. Before welding repair, the welding procedure qualification shall be carried out in accordance with GB/T 40800, and the defective areas of the casting shall be cleaned. After welding repair, the use and appearance quality of the casting shall not be affected. Unless otherwise specified, the welding repair process shall be determined by the supplier.
4.2.2 The welding repair of castings shall comply with GB/T 45681.
4.2.3 The location and extent of major welding repairs shall be recorded by sketches or photos.
4.2.4 After major welding repair, the corresponding heat treatment shall be carried out according to the repair welding procedure.
Contents
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Manufacturing
5 Technical requirements
7 Inspection rules
8 Marking, quality certificate, packaging, transport and storage
Annex A (Informative) Heat treatment process for castings
GB/T 2100-2026 Corrosion-resistant cast steels for general applications
1 Scope
This document specifies the manufacturing, technical requirements, test methods, inspection rules, marking, quality certificates, packaging, transport and storage of corrosion-resistant cast steels for general applications (hereinafter referred to as “casting”).
This document applies to the manufacturing of corrosion-resistant cast steels for general applications for various corrosive service conditions.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions 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 222 Steels and alloys - Permissible deviations of product analyzed chemical composition
GB/T 223.4 Alloyed steel - Determination of manganese content - Potentiometric or visual titration method
GB/T 223.5 Steel and iron - Determination of acid-soluble silicon and total silicon content - Reduced molybdosilicate spectrophotometric method
GB/T 223.11 Iron, steel and alloy - Determination of chromium content - Titrimetric method and spectrophotometric method
GB/T 223.13 Iron, steel and alloy - Determination of vanadium content- Titrimetric method and spectrophotometric method
GB/T 223.19 Methods for chemical analysis of iron steel and alloy; The neocuproine-chloroform extraction photometric method for the determination of copper 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 223.37 Iron, steel and alloy - Determination of nitrogen content - Indophenol blue spectrophotometric method after distillation separation
GB/T 223.40 Iron steel and alloy - Determination of niobium content by the sulphochlorophenol S spectrophotometric method
GB/T 223.43 Iron steel and alloy - Determination of tungsten content - Gravimetric method and spectrophotometric method
GB/T 223.61 Methods for chemical analysis of iron, steel and alloy - The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
GB/T 223.69 Methods for chemical analysis of iron, steel and alloy; The ammonium phosphomolybdate volumetric method for the determination of phosphorus content
GB/T 223.84 Steel and iron - Determination of titanium content - Diantipyrylmethane spectrophotometric method
GB/T 223.85 Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace
GB/T 228.1 Metallic materials - Tensile testing - Part 1: Method of test at room temperature
GB/T 229 Metallic materials - Charpy pendulum impact test method
GB/T 4334 Corrosion of metals and alloys - Test methods for intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels
GB/T 5611 Foundry terminology
GB/T 5613 Designation for cast steels
GB/T 5677 Castings - Radiographic testing
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 7233.1 Steel castings - Ultrasonic examination - Part 1: Steel castings for general purposes
GB/T 9443 Steel and iron castings - Liquid penetrant inspection
GB/T 9444 Steel and iron castings - Magnetic particle inspection
GB/T 11170 Stainless steel - Determination of multi-element contents - Spark discharge atomic emission spectrometric method (Routine method)
GB/T 11351 Mass tolerances of casting
GB/T 13305 Method for determining content of the α-phase in stainless steels
GB/T 14203 General rules for spark discharge atomic emission spectrometry
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 39428 Steel castings by sand casting - Visual examination method of surface quality
GB/T 39638 X-ray digital radiographic testing for casting
GB/T 40800 Specification and qualification of welding procedures for production welding of steel castings
GB/T 40805 Steel castings - General technical delivery requirements
GB/T 42124.3 Geometrical product specifications(GPS) - Dimensional and geometrical tolerances for moulded parts - Part 3:General dimensional and geometrical tolerances and machining allowances for castings
GB/T 45167 Steels, nickel alloys and cobalt alloys investment castings - Visual testing of surface quality
GB/T 45681 General technical specification for repair welding of steel castings
JB/T 6440 Methods of radiographic examination for steel castings valves
YB/T T 4396 Stainless steel - Determination of multi-element contents - Inductively coupled plasma atomic emission spectrometric method
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 5611 and the following apply.
3.1
major welding repair
it is considered a major welding repair when the depth of the prepared groove for weld repair exceeds 25 mm or 40% of the wall thickness (whichever is smaller), or when the area of a single repair excavation exceeds 65 cm² (on the cast surface)
4 Manufacturing
4.1 Casting and heat treatment
4.1.1 Unless otherwise specified by the purchaser, the melting method and casting process shall be determined by the supplier.
4.1.2 Castings shall be subjected to heat treatment. The heat treatment process shall be determined by the supplier. The heat treatment processes for castings are given in Annex A.
4.2 Welding repair
4.2.1 Except where special provisions prohibit welding repair, defects in castings may be repaired by welding. Before welding repair, the welding procedure qualification shall be carried out in accordance with GB/T 40800, and the defective areas of the casting shall be cleaned. After welding repair, the use and appearance quality of the casting shall not be affected. Unless otherwise specified, the welding repair process shall be determined by the supplier.
4.2.2 The welding repair of castings shall comply with GB/T 45681.
4.2.3 The location and extent of major welding repairs shall be recorded by sketches or photos.
4.2.4 After major welding repair, the corresponding heat treatment shall be carried out according to the repair welding procedure.
Contents of GB/T 2100-2026
Contents
Foreword I
1 Scope
2 Normative references
3 Terms and definitions
4 Manufacturing
5 Technical requirements
7 Inspection rules
8 Marking, quality certificate, packaging, transport and storage
Annex A (Informative) Heat treatment process for castings
