This standard specifies the technical requirements, test method and acceptance regulations of cast steels used for fan blower and compressor.
This standard is applicable to the carbon steel, stainless acid resistant steel and cryogenic steel cast used for turbine compressor, blower, fan, expander and roots blowers (including auxiliaries).
Foreword I 1 Scope 2 Normative References 3 Technical Requirements 4 Test methods and Acceptance Regulations 5 Marks and Product Certificates Annex A (Normative) Cast Weight Tolerances (GB/T 6414) Annex B (Normative) Cast Dimensional Tolerances (GB/T 6414) Table 1: Chemical Composition of Cast Steel Table 2: Mechanical Property of Cast Steel Table 3: Residual Height of Sprue, Riser, Subsidy and Process Tie-piece on Non-finish-surface after Cutting (mm) Table 4: Defect Depth and Cast Wall Thickness Table A.1: Cast Weight Tolerances Table B.1: Cast Dimensional Tolerances
