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Material
DL /T 439-2018
The technical guide for high-temperature bolt of fossil-fired power plant
Material Designation
Chemical Composition (%)
35
Min
Max
45
Min
Max
20CrMoA
Min
Max
35CrMoA
Min
Max
42CrMoA
Min
Max
40CrMoVA
Min
Max
45Cr1MoVA
Min
Max
25Cr2MoVA
Min
Max
25Cr2Mo1VA
Min
Max
21Cr12MoV
Min
Max
20Cr1Mo1V1A
Min
Max
20Cr1Mo1VNbTiB
Min
Max
20Cr1Mo1VTiB
Min
Max
22Cr12NiWMoV(C-422)
Min
Max
18Cr11NiMoNbVN
Min
Max
20Cr11MoNiNbVN
Min
Max
14Cr11W2MoNiVNbN
Min
Max
12Cr10Mo1W1NiVNbN
Min
Max
2Cr11Mo1VNbN
Min
Max
1Cr11Co3W3NiMoVNbNB
Min
Max
2Cr11Mo1NiWVNbN
Min
Max
GH6783
Min
Max
R-26
Min
Max
GH4145
Min
Max
For Reference Only
