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
