钢的含碳量为
A: 0.0218%~2.11%
B: 0.0218%~0.77%
C: 0.77%~2.11%
D: 2.11% -- 6.69%C
A: 0.0218%~2.11%
B: 0.0218%~0.77%
C: 0.77%~2.11%
D: 2.11% -- 6.69%C
举一反三
- 钢的含碳量范围在: A: 0.0218%~0.77% B: 0.0218%~2.11% C: 0.77%~2.11% D: 2.11%~6.69%
- 过共析钢的含碳量是( )。 A: 0.0218%-0.77% B: 0.0218%-2.11% C: 0.77%-2.11% D: 2.11%-6.69%
- 铸铁含碳量为 A: 2.11%~4.3% B: 4.3%~6.69%C C: 2.11% ~6.69% D: 0.77%~2.11% E: 0.0218%~0.77%
- 铸铁的含碳量为() A: 0.77%-2.11% B: 2.11%-6.69% C: 0.0218%-2.11% D: 2.11%-4.3%
- 含碳量小于( )的铁碳合金称为钢 A: 0.0218% B: 2.11% C: 6.69% D: 0.77%