Steel Butt-Welding Pipe Fittings (JIS)
90 & 45 Elbows 
JIS B2311 *CangZhou Ritia Standards Unit: mm
| Nominal Pipe Size (NPS) |
Outside Diameter D |
Center to End |
| 90 Elbows(F) |
45 Elbows(H) |
| A |
B |
Long |
Short |
Long |
Short* |
| 15 |
½ |
21.7 |
38.1 |
- |
15.8 |
- |
| 20 |
¾ |
27.2 |
38.1 |
- |
15.8 |
- |
| 25 |
1 |
34.0 |
38.1 |
25.4 |
15.8 |
10.5 |
| 32 |
1¼ |
42.7 |
47.6 |
31.8 |
19.7 |
13.2 |
| 40 |
1½ |
48.6 |
57.2 |
38.1 |
23.7 |
15.8 |
| 50 |
2 |
60.5 |
76.2 |
50.8 |
31.6 |
21.0 |
| 65 |
2½ |
76.3 |
95.3 |
63.5 |
39.5 |
26.3 |
| 80 |
3 |
89.1 |
114.3 |
76.2 |
47.3 |
31.6 |
| 90 |
3½ |
101.6 |
133.4 |
88.9 |
55.3 |
36.8 |
| 100 |
4 |
114.3 |
152.4 |
101.6 |
63.1 |
42.1 |
| 125 |
5 |
139.8 |
190.5 |
127.0 |
78.9 |
52.6 |
| 150 |
6 |
165.2 |
228.6 |
152.4 |
94.7 |
63.1 |
| 200 |
8 |
216.3 |
304.8 |
203.2 |
126.3 |
84.2 |
| 250 |
10 |
267.4 |
381.0 |
254.0 |
157.8 |
105.2 |
| 300 |
12 |
318.5 |
457.2 |
304.8 |
189.4 |
126.3 |
| 350 |
14 |
355.6 |
533.4 |
355.6 |
220.9 |
147.3 |
| 400 |
16 |
406.4 |
609.6 |
406.4 |
252.5 |
168.4 |
| 450 |
18 |
457.2 |
685.8 |
457.2 |
284.1 |
189.4 |
| 500 |
20 |
508.0 |
762.0 |
508.0 |
315.6 |
210.4 |
| 550 |
22 |
558.8 |
838.2 |
558.8 |
347.2 |
231.5 |
| 600 |
24 |
609.6 |
914.4 |
609.6 |
378.7 |
252.5 |
| 650 |
26 |
660.4 |
990.6 |
660.4 |
410.3 |
273.6 |
| 700 |
28 |
711.2 |
1066.8 |
711.2 |
441.9 |
294.6 |
| 750 |
30 |
762.0 |
1143.0 |
762.0 |
473.4 |
315.7 |
| 800 |
32 |
812.8 |
1219.2 |
812.8 |
505.0 |
336.7 |
| 850 |
34 |
863.6 |
1295.4 |
863.6 |
536.6 |
357.7 |
| 900 |
36 |
914.4 |
1371.6 |
914.4 |
568.1 |
378.8 |
| 950 |
38 |
965.2 |
1447.8 |
965.2 |
599.7 |
399.8 |
| 1000 |
40 |
1016.0 |
1524.0 |
1016.0 |
631.2 |
420.9 |
| 1050 |
42 |
1066.8 |
1600.2 |
1066.8 |
662.8 |
441.9 |
| 1100 |
44 |
1117.6 |
1676.4 |
1117.6 |
694.4 |
463.0 |
| 1150 |
46 |
1168.4 |
1752.6 |
1168.4 |
725.9 |
484.0 |
| 1200 |
48 |
1219.2 |
1828.8 |
1219.2 |
757.5 |
505.1 | |
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