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Material
NF A 35-556-1984
Steel for threaded fasteners for structural and engineering purposes
Material Designation
Chemical Composition (%)
35NCD16
Min
Max
25CD4
Min
Max
30CD4
Min
Max
30CND8
Min
Max
30NC11
Min
Max
32C4
Min
Max
34CD4
Min
Max
38B3
Min
Max
38CB1
Min
Max
38CD4
Min
Max
38MB5
Min
Max
42CD4
Min
Max
38C4
Min
Max
42C4
Min
Max
20MB5
Min
Max
For Reference Only
