双强度  MPa

单强度  MPa

1180/1770

1320/1620

1370/1770

1570/1770

1570

1620

1770

8

21.8

25.7

26.5

28.1

30.8

29.4

30.4

33.2

9

27.5

32.5

－

35.6

38.9

37.3

－

42.0

9.5

30.7

36.2

37.3

39.7

43.6

41.5

42.8

46.8

10

34.0

40.1

41.3

44.0

48.1

46.0

47.5

51.9

11

41.1

48.6

50.0

53.2

58.1

55.7

57.4

62.8

12

49.0

57.8

59.5

63.3