机械性能

抗拉强度

屈服强度

伸长率

冲击功

布氏硬度

API Standard

≥965.3

≥827.4

≥13

≥54

≥285

钻杆接头代号

规格和类型

标称质量

钢极

内、外螺纹接头外径

外螺文接头内径

内、外螺纹接头台肩倒角直径

外螺纹接头大钳空间

内螺纹接头大钳空间

内、外螺纹接头焊颈直径

NC26

2 3/8 EU

9.90

E75

85.7

44.45

82.95

177.8

203.2

65.09

X95

85.7

44.45

82.95

177.8

203.2

65.09

G105

85.7

44.45

82.95

177.8

203.2

65.09

NC31

2 7/8 EU

15.49

E75

104.8

53.98

100.41

177.8

228.6

80.96

X95

104.8

50.80

100.41

177.8

228.6

80.96

G105

104.8

50.80

100.41

177.8

228.6

80.96

S135

111.1

41.28

100.41

177.8

228.6

80.96

NC38

3 1/2 EU

14.15

E75

120.7

76.20

116.28

203.2

266.7

98.43

NC38

3 1/2 EU

19.81

23.09

E75

120.7

68.26

116.28

203.2

266.7

98.43

X95

127.0

65.09

116.28

203.2

266.7

98.43

G105

127.0

61.91

116.28

203.2

266.7

98.43

S135

127.0

53.98

116.28

203.2

266.7

98.43

E75

127.0

65.09

116.28

203.2

266.7

98.43

X95

127.0

61.91

116.28

203.2

266.7

98.43

G105

127.0

53.98

116.28

203.2

266.7

98.43

NC40

3 1/2 EU 4IU

23.09

20.85

S135

139.7

57.15

127.40

177.8

254.0

98.43

E75

133.4

71.44

127.40

177.8

254.0

106.36

X95

133.4

68.26

127.40

177.8

254.0

106.36

G105

139.7

61.91

127.40

177.8

254.0

106.36

S135

139.7

50.80

127.40

177.8

254.0

106.36

NC46

4EU

20.85

E75

152.4

82.55

145.26

177.8

254.0

114.30

X95

154.4

82.55

145.26

177.8

254.0

114.30

G105

152.4

82.55

145.26

177.8

254.0

114.30

S135

152.4

76.20

145.26

177.8

254.0

114.30

4 1/2 IU 4 1/2IEU

20.48

24.73

E75

152.4

85.73

145.26

177.8

254.0

119.06

E75

158.8

85.22

145.26

177.8

254.0

119.06

X95

158.8

76.20

145.26

177.8

254.0

119.06

G105

158.8

76.20

145.26

177.8

254.0

119.06

S135

158.8

69.85

145.26

177.8

254.0

119.06