France · AFNOR NF

20 M 5

NF M 81-636

Chemical composition

wt% · log scale

min – max range
typical value

Chemical composition

Element	min	max	Similar	Remarks
Al	0.02
B	0.0008
C	0.16	0.22
Mn	1.1	1.4
P		0.035
S		0.035
Si	0.1	0.35