ASME B16.9 Butt weld 180° return,pipe fitting elbows

Butt weld fittings are used wherever liquid, gas, chemical and other fluid are created, processed, transported, especially in large size piping system. Such as Oil and gas industries, Midstream, Shipbuilding, Power plants, Food plants, Pharmaceuticals, etc.

Specifications of butt weld fittings 180° Return,pipe fitting elbows
Material: Carbon Steel ASTM A234 WPB
Standard:
ASME B16.9
DIN2605
JIS B2312
Size Range: 1/2”-20”
Wall thickness: Sch10, Sch40, Sch80
Coating: Black Paint, Galvanized
Type: Long Radius(R=1.5D), Short Radius(R=1D)

Butt weld fittings offer various advantages over other fittings. Butt weld causes less material usage, which means lower material cost and lower weight. Also it permits greater freedom in designing the layout, less space, but greater strength.

available size for long radius

DN	Nominal pipe size	Outside diameter at bevel (mm)	O (mm) K (mm)
15	1/2	21.3	76	48
20	3/4	26.7	76	51
25	1	33.4	76	56
32	1-1/4	42.2	95	70
40	1-1/2	48.3	114	83
50	2	60.3	152	106
65	2-1/2	73.0	190	132
80	3	88.9	229	159
90	3-1/2	101.6	267	184
100	4	114.3	305	210
125	5	141.3	381	262
150	6	168.3	457	313
200	8	219.1	610	414
250	10	273.0	762	518
300	12	323.8	914	619
350	14	355.6	1067	711
400	16	406.4	1219	813
450	18	457.0	1372	914
500	20	508.0	1524	1016

available size for short radius

DN	Nominal pipe size	Outside diameter at bevel (mm)	0 (mm) K (mm)
25	1	33.4	51	41
32	1-1/4	42.2	64	52
40	1-1/2	48.3	76	62
50	2	60.3	102	81
65	2-1/2	73.0	127	100
80	3	88.9	152	121
90	3-1/2	101.6	178	140
100	4	114.3	203	159
125	5	141.3	254	197
150	6	168.3	305	237
200	8	219.1	406	313
250	10	273.0	508	391
300	12	323.8	610	467
350	14	355.6	711	533
400	16	406.4	813	610
450	18	457.0	914	686
500	20	508.0	1016	762

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