1 Scope
This standard specifies the terminologies and definitions, designation, technical requirements, test method, inspection rules, marking, storage, packaging and transportation of abrasion-resistant white iron castings with Cr-Ni and those with Cr.
This standard is applicable to the abrasion-resistant components and parts used in metallurgy, building materials, electric power, building, ship, coal, chemical industry and machinery industries, etc.
2 Normative References
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to this Standard are encouraged to research whether the latest editions hereof are applied or not. For undated references, the latest edition hereof applies to this standard.
GB/T 223.11 Iron Steel and Alloy - Determination of Chromium Content - Visual Titration or Potentiometric Titration Method
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 223.23 Iron Steel and Alloy - Determination of Nickel Content - the Dimethylglyoxime Spectrophotometric Method
GB/T 223.26 Iron Steel and Alloy - Determination of Molybdenum Content - the Thiocyanate Spectrophotometric Method
68/T 223.59 Iron Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method
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 223.64 Iron Steel and Alloyed - Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method
GB/T 223.67 Iron Steel and Alloy - Determination of Sulfur Content - Methylene Blue Spectrophotometric Method
GB/T 223.69 Iron steel And Alloy - Determination of Carbon Contents - Gas-volumetric Method after Combustion in the Pipe Furnace
68/T 230.1 Metallic Materials - Rockwell Hardness Test - Part 1: Test Method (Scales A, B, C, D, E, F, G, H, K, N, T)
GB/T 231.1 Metallic Materials - Brinell Hardness Test - Part 1: Test Method
GB/T 5611 Foundry Terminology
GB/T 5612 Code for Representing Cast Iron
GB/T 6060.1-1997 Roughness comparison specimens - Cast surfaces
GB/T 6414-1999 Castings - System of Dimensional Tolerances and Machining Allowances
GB/T 11351-1989 Mass Tolerances for Castings
GB/T 15056 Evaluation Method on Cast Surface Roughness
GB/T 20066 Steel and Iron - Sampling and Preparation of Samples for the Determination of Chemical Composition
3 Terminologies and Definitions
For the purpose of this standard, the terminologies and definitions defined in GB/T 5611 and the following ones apply.
3.1
Abrasion-resistant white iron
White cast iron with microstructure of metallic matrix and carbonide and having good abrasion resistance.
3.2
Abrasion-resistant white iron with Cr and Ni
Abrasion-resistant white iron with major alloy elements Ni and Cr.
1 Scope
2 Normative References
3 Terminologies and Definitions
4 Designation
5 Technical Requirements
6 Test Method
7 Inspection Rules
8 Marking, Storage, Packaging and Transportation
Appendix A (Informative) Specification of Heat Treatment for Abrasion-resistant White Iron Castings
Appendix B (Informative) Microstructures of Abrasion-resistant White Iron Castings
