HTLA steels are susceptible to reheat cracking because they are with a lot of (). A: carbides B: hydrogen C: sulphur D: manganese

HTLA steels are susceptible to reheat cracking because they contain a lot of () A: carbides B: H C: S D: P

If the carbon content of a type of steel is 0.1%， this steel is a kind of （ ）. A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel

HTLA steels are susceptible to reheat cracking because they contain a lot of () A: carbides B: H C: S D: P E: 2-3-2 F: 期末