Competely annealing is mainly used for ( ).
A: hypoeutectoid steel
B: eutectoid steel
C: hypereutectoid steel
D: all steel
A: hypoeutectoid steel
B: eutectoid steel
C: hypereutectoid steel
D: all steel
举一反三
- 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
- Steel structure is the engineering structures made of shaped steel and steel plate.
- The electric furnace is used extensively to produce the high-grade steel _____ for the manufacture of steel alloys. A: to be required B: requiring C: required D: that required
- To improve the machinability of low carbon steel, the heat treatment process usually used is ( ) . A: quenching B: tempering C: annealing D: normalizing
- The proper preliminary heat treatment for T12 steel is . A: complete annealing B: homogenizing annealing C: spheroidizing annealing D: isothermal annealing