The percentage of carbon that must be present in steel before it can be hardened noticeably is
A)0.20 percent
B)0.30 percent
C)0.70 percent
D)0.10 percent
E)0.05 percent

Question

Quizplus · Accepted Answer

The Answer of The percentage of carbon that must be present in steel before it can be hardened noticeably is
A)0.20 percent
B)0.30 percent
C)0.70 percent
D)0.10 percent
E)0.05 percent

The Percentage of Carbon That Must Be Present in Steel