Dec 16, 2025 Leave a message

ASME B16.11 Threaded 45 Degree Elbow Dimension

ASME B16.11 Threaded 45 Degree Elbow Dimension Supplier. Contact us to get free quote and sample!

 

ASME B16.11 is a standard for forged steel threaded pipe fittings. It applies to forged steel threaded 45° elbows with nominal pressure (Class) ratings of 1500, 2000, 3000, 6000.. Materials include carbon steel, alloy steel, and stainless steel, and it is primarily used in industrial piping systems in the petroleum, chemical, and power industries. The connection method is internal thread (NPT) or external thread (NPT).

 

HT PIPE is a leading stockist and global exporter with over 15 years of expertise in international trade. We supply pipes, plates, round bars, and a comprehensive range of pipe fittings, flanges, and valves. Contact us now for free quotes and personalized product information.

 

Material advice

Carbon steel: Suitable for Class 1500-6000 under normal operating conditions. Dimensions must strictly adhere to the center-to-end and wall thickness requirements in Table, with no additional dimensional compensation. When used in conditions with temperatures >370°C, the minimum wall thickness must be increased by 10% compared to the standard value.


Stainless steel: Due to its low thermal conductivity, in low-temperature (< -29°C) conditions, the center-to-end dimensional tolerance needs to be reduced to ±0.040 inches (NPS 1/8 to 1) and ±0.060 inches (NPS 1-1/4 to 4) to prevent installation deviations caused by low-temperature contraction; the effective thread length needs to be increased by an additional 0.050 inches to improve sealing reliability.


Alloy steel: When used in high-pressure Class 9000 conditions, the wall thickness tolerance needs to be adjusted to +0.080 inches and -0.040 inches, and the end face roughness needs to be improved to Ra≤3.2μm to reduce the risk of media leakage.

90 degree elbows

Nominal size

Center to end

Outside diameter to band

Wall thickness

Length of thread

DN

NPS

A

H

Gmin

L5min

L2min

90° Elbows tees Crosses

45° Elbows

2000

3000

6000

2000

3000

6000

2000

3000

6000

2000

3000

6000

6

1/8

21

21

25

17

17

19

22

22

25

3.18

3.18

6.35

6.4

6.7

8

1/4

21

25

28

17

19

22

22

25

33

3.18

3.30

6.60

8.1

10.2

10

3/8

25

28

33

19

22

25

25

33

38

3.18

3.51

6.98

9.1

10.4

15

1/2

28

33

38

22

25

28

33

38

46

3.18

4.09

8.15

10.9

13.6

20

3/4

33

38

44

25

28

33

38

46

56

3.18

4.32

8.53

12.7

13.9

25

1

38

44

51

28

33

35

46

56

62

3.68

4.98

9.93

14.7

17.3

32

11/4

44

51

60

33

35

43

56

62

75

3.89

5.28

10.59

17.0

18.0

40

11/2

51

60

64

35

43

44

62

75

84

4.01

5.56

11.07

17.8

18.4

50

2

60

64

83

43

44

52

75

84

102

4.27

7.14

12.09

19.0

19.2

65

21/2

76

83

95

52

52

64

92

102

121

5.61

7.65

15.29

23.6

28.9

80

3

86

95

106

64

64

79

109

121

146

5.99

8.84

16.64

25.9

30.5

100

4

106

114

114

79

79

79

146

152

152

6.55

11.18

18.67

27.7

33.0

 

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