Dimensions Butt Weld Elbows 180° LR & SR ASME B16.9
Elbows 180° long and short Radius

Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.

Dimensional Tolerances of Butt Weld Elbows 180° LR and SR ASME B16.9

Nominal Pipe Size 1/2 to 2½ 3 to 3½ 4
Outside Diameter
at Bevel (D)
+ 1.6
- 0.8
1.6 1.6
Inside Diameter at End 0.8 1.6 1.6
Center to Center (O) 6 6 6
Back to Face (K) 6 6 6
Nominal Pipe Size 5 to 8 10 to 18 20 to 24
Outside Diameter
at Bevel (D)
+ 2.4
- 1.6
+ 4
- 3.2
+ 6.4
- 4.8
Inside Diameter at End 1.6 3.2 4.8
Center to Center (O) 6 10 10
Back to Face (K) 6 6 6
Wall Thickness (t) Not less than 87.5% of Nominal Wall Thickness

Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.

Note:
MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 - NPS 24. Except with regard to the outside diameter at the bevel.

Elbows 180 Degrees Long and Short radius ASME B16.9

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