고강도 고강도 붕괴 케이싱

BL110/BL110T/BL110TT

758~965

≥862

API 5CT 공식에 따라 계산

BL125/BL125T/BL125TT

862~1034

≥931

BL130/BL130T/BL130TT

896~1103

≥965

BL140/BL140T/BL140TT

965~1172

≥1034

BL150/BL150T/BL150TT

1034~1241

≥1103

110

125

130

140

150

BL110

BL110T

Q125

Q125T

Q130

Q130T

Q140

Q140T

Q150

Q150T

114.3

8.56

98.9

119.6

109.2

127.1

112.4

130.7

118.7

137.7

124.8

144.4

127

9.19

92.8

112.2

102.1

119

105.1

122.2

110.8

128.6

116.1

134.6

11.1

121

143.7

137.5

155.2

143

160.9

154

172.4

165

183.9

12.14

131.2

155.7

149.1

168.1

155

174.3

166.9

186.8

178.8

199.2

12.7

136.6

162

155.1

174.9

161.3

181.4

173.7

194.4

186.2

207.3

139.7

9.17

76.6

92.5

83.4

97.4

85.4

99.8

89.3

104.2

92.9

108.3

10.54

100.2

121.3

110.7

128.8

114.1

132.6

120.5

139.7

126.7

146.6

12.7

125.4

148.9

142.5

160.7

148.2

166.6

159.6

178.6

170.9

190.5

168.3

8.94

46.4

55.8

48.4

57.3

48.9

57.9

49.5

58.9

50.7

59.3

10.59

70.1

84.6

75.8

88.7

77.5

90.7

80.7

94.4

83.6

97.7

177.8

10.36

58.8

70.9

62.8

73.8

63.9

75.1

65.9

77.5

67.6

79.4

11.51

74.4

89.9

80.7

94.5

82.8

96.7

86.4

100.9

89.7

104.7

12.65

89.9

108.7

98.7

115.1

101.5

118.2

106.8

124.2

111.9

129.8

13.72

104.4

126.3

115.5

134.3

119.1

138.3

126

146

132.7

153.3

193.68

9.52

36.8

44.2

39.1

45.2

39.7

45.9

40.9

47.2

41.7

48.2

10.92

54.2

65.4

57.5

67.8

58.4

68.8

59.9

70.7

61

72.1

12.7

76.4

92.3

83.2

97.2

85.2

99.5

89.1

104

92.6

108

219.08

10.16

32.3

38.2

34

39.4

34.5

39.9

35

40.6

35.4

41.1

11.43

44.1

53

45.8

54.3

46.1

54.8

47.1

55.4

48.5

55.9

12.7

58.1

70

61.9

72.8

63

74.1

64.9

76.4

66.4

78.3