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≤0.18

≤0.6

≤1.8

≤0.6

≤0.03

≤0.03

≤0.8

≤0.2

≤0.55

≤0.11

≤0.12

≤0.2

≤0.015

≤0.004

≥0.015

≤0.18

≤0.6

≤1.8

≤0.6

≤0.025

≤0.03

≤0.8

≤0.2

≤0.55

≤0.11

≤0.12

≤0.2

≤0.015

≤0.004

≥0.015

≤0.18

≤0.6

≤1.8

≤0.6

≤0.02

≤0.025

≤0.8

≤0.2

≤0.55

≤0.11

≤0.12

≤0.2

≤0.015

≤0.004

≥0.015

抗拉強度σb(MPa)

610～770

600～760

590～750

540～730

屈服強度σs(MPa)

≥500

≥480

≥470

≥450

≥440

伸長率(A)/%

≥17

≥17

≥17