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Material
20MnMoNb
Standard
JB /T 6396-2006
Specification for the heavy alloy structural steel forings
Standard
NB /T 47008-2017
Carbon and alloy steel forgings for pressure equipment
Chemical Composition
(%)
Standard
Material Designation
Chemical Composition (%)
JB /T 6396-2006
Specification for the heavy alloy structural steel forings
18MnMoNb
(
20MnMoNb
)
Min
Max
NB /T 47008-2017
Carbon and alloy steel forgings for pressure equipment
20MnMoNb
Min
Max
For Reference Only
