Detail of GB/T 31204-2014

Introduction of GB/T 31204-2014

1 Scope This standard specifies classification and designation, technical requirements, test methods and inspection rules as well as marking, packaging, transport and storage of carbon steel investment casting. This standard is applicable to carbon steel investment casting for general engineering. 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 223.5 Steel and Iron - Determination of Acid-soluble Silicon and Total Silicon Content - Reduced Molybdosilicate Spectrophotometric Method GB/T 223.12 Methods for Chemical Analysis of Iron, Steel and Alloy - The Sodium Carbonate Separation-diphenyl Carbazide Photometric Method for the Determination of Chromium Content 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 223.23 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 GB/T 223.53 Methods for Chemical Analysis of Iron, Steel and Alloy - The Flame Atomic Absorption Spectrophotometric Method for the Determination of Copper Content GB/T 223.59 Iron Steel and Alloy - Determination of Phosphorus Content - Bismuth Phosphomolybdate Blue Spectrophotometric Method and Antimony Phosphomolybdate Blue Spectrophotometric Method GB/T 223.64 Iron Steel and Alloyed - Determination of Manganese Content - Flame Atomic Absorption Spectrometric Method GB/T 223.69 Iron Steel and Alloy - Determination of Carbon Contents - Gas-volumetric Method after Combustion in the Pipe Furnace GB/T 223.72 Iron Steel and Alloy - Determination of Sulfur Content - Gravimetric Method 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 224 Determination of Depth of Decarburization of Steels 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 230.1 Metallic Materials - Rockwell Hardness Test - Part 1: Test Method (Scales A, B, C, D, E, F, G, H, K, N and T) GB/T 231.1 Metallic Materials - Brinell Hardness Test - Part 1: Test Method GB/T 4336 Standard Test Method for Spark Discharge Atomic Emission Spectrometric Analysis of Carbon and Low-Alloy Steel (Routine Method) GB/T 5677 Radiographic testing for steel castings GB/T 6414-1999 Castings - System of Dimensional Tolerances and Machining Allowances GB/T 7233.1 Steel Castings - Ultrasonic Examination - Part 1: Steel Castings for General Purposes GB/T 9443 Penetrant Testing for Steel Castings GB/T 9444 Magnetic Particle Testing for Steel Castings GB/T 11352 Carbon Steel Castings for General Engineering Purpose GB/T 15056-1994 Evaluation Method on Cast Surface Roughness HB 6573 Standard Reference Radiographic Film for Investment Casting 3 Classification and Designation 3.1 Classification It is classified into 3 types by casting working condition and purpose, see Table 1.

Contents of GB/T 31204-2014

Foreword i 1 Scope 2 Normative References 3 Classification and Designation 4 Technical Requirements 5 Test Method 6 Inspection Rules 7 Marking, Certification, Surface Protection, Packaging, Transport and Storage Annex A (Normative) Pattern Draft of Carbon Steel Investment Casting Annex B (Normative) Drawings of Keel Block, Plum Blossom Test Block and Tensile Specimen