Standard No.:	JB/T 9021-2010
Chinese Name:	汽轮机主轴和转子锻件的热稳定性试验方法
English Name:	中华人民共和国工业和信息化部
Professional Classification:	J32 Forging and pressing
Professional Classification:	JB Professional Standard - Machinery
ICS Classification:	77.140.85 Iron and steel forgings
Issued by:
Issued on:	2010-02-11
Implemented on:	2010-07-01
Status:	VALID
Replace:	JB/T9021-1999 Test method for hest stability of steam turbine shafts and rotor forgings
Language:	English
File Format:	PDF
Word Count:
Price(USD):	please email coc@codeofchina.com for quotation
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1 Scope

This standard specifies the thermal stability test method of steam turbine main shafts and rotor forgings.
This standard is applicable to the thermal stability test of steam turbine main shafts and rotor forgings to ensure the stable operation of steam turbine main shafts and rotor forgings under operation temperature.
2 Order Requirements

2.1 If the thermal stability test is required by the demander, the minimum temperature of thermal stability test shall be specified on the order drawing and the test position, the required quantity of test tapes as well as the section of heating chamber where the forging shall be placed shall be indicated on the forging drawing.
2.2 The thermal stability test shall be carried out by the supplier after final heat treatment. In case the condition of supplier does not allow, the test may also be carried out by the demander.