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ML20B
Standard GB T 6478-2001 Steels for cold heading and cold extruding
Standard GB /T 6478-2015 Steels For Cold Heading And Cold Extruding
Standard GB /T 28906-2012 Hot rolled wire rod for cold heading
Standard GB /T 5953.1-2009


Chemical Composition(%)


Standard Material Designation Chemical Composition (%)
GB T 6478-2001
Steels for cold heading and cold extruding
ML20B
(A70204)
 
Min
Max
GB /T 6478-2015
Steels For Cold Heading And Cold Extruding
ML20B
(A70204)
 
Min
Max
GB /T 28906-2012
Hot rolled wire rod for cold heading
ML20B
(A70204)
 
Min
Max
GB /T 5953.1-2009 ML20B
 
Min
Max
For Reference Only