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Customers always ask to provide approximate weight for pipe fittings that include 90 degree elbow, equal tee, pipe reducer, threaded coupling and cap. Why do they need this? Because they can decide to choose the shipping way depending on the weights, like LCL, 20GP, 40GP, Air or Express. To help and resolve this things, today we would like to introduce how to get the weight of buttweld elbow.

What is the Steel Pipe Elbow?

Steel pipe elbows are play a very important role in pipeline system. They can be divided into some types that depend on the angle and connection methods.

• Angle

30 Degree Elbow, 45 Degree Elbow, 60 Degree Elbow, 90 Degree Elbow and 180 Degree Elbow.

• Connection

Butt Weld Elbow, Threaded Pipe Elbow and Socket Weld Elbow.

• Radius

Long Radius Elbow and Short Radius Elbow.

What are the Methods ?

1. Get the weight of 90 degree elbow by chart.
2. Calculate the weight by formula.
3. Weigh them one by one.

When you have the outside diameter and wall thickness schedule, you can get the weight in the chart easily. But make sure the 90 degree elbow types clearly, there are two types that LR and SR. We would like to provide the each weight chart for you.

90 Degree Elbow Weight Chart

90 Degree Long Radius Elbow Weight Chart

DN	NPS	10S	20	STD	40	XS	80	100	120	140	160	XXS
15	1/2	0.1		0.1	0.1	0.1	0.1
20	3/4	0.1		0.1	0.1	0.1	0.1
25	1	0.1		0.2	0.2	0.2	0.2				0.3	0.3
32	11/4	0.2		0.3	0.3	0.4	0.4				0.4	0.6
40	11/2	0.3		0.4	0.4	0.5	0.5				0.7	0.9
50	2	0.5		0.7	0.7	1.0	1.0				1.3	1.6
65	21/2	0.8		1.4	1.4	1.8	1.8				2.3	3.4
80	3	1.2		2.2	2.2	2.9	2.9				3.8	5.3
90	31/2	1.6		3.0	3.0	4.1	4.1
100	4	2.0		4.1	4.1	5.6	5.6				8.0	10.2
125	5	3.5		6.9	6.9	9.6	9.6				14.7	17.6
150	6	5.0		10.7	10.7	16.5	16.5		19.5		24.2	23.1
200	8	9.6	16.5	21.6	21.6	31.6	31.6	36.3	43.3	48.3	53.3	51.7
250	10	16.7	25.8	37	37	49.9	60.7	68.6	79.5	92.8	103	92.8
300	12	25.9	36.1	56	61	71.6	97.4	115	134	149	171	134.0
350	14	34.7	60.2	71.4	85.1	92	139	163	188	212	236
400	16	45.4	78	93.6	121	121	200	235	274	319	350
450	18	56.2	87.7	119	176	153	287	334	392		440	495
500	20	82.2	147	147	232	190	396	457	528	609	676
550	22	99.6	178	178		230	515	594	694	790	886
600	24	136	212	212	377	275	635	786	919	1033	1160

90 Degree Short Radius Elbow Weight Chart

DN	NPS	10S	20	STD	40	XS	80	100	120	140	160	XXS
15	1/2	0.1		0.1	0.1	0.1	0.1
20	3/4	0.1		0.1	0.1	0.1	0.1
25	1	0.1		0.1	0.1	0.2	0.2				0.2	0.2
32	11/4	0.2		0.2	0.2	0.3	0.3				0.4	0.6
40	11/2	0.3		0.4	0.4	0.5	0.5				0.6	0.8
50	2	0.4		0.6	0.6	0.9	0.9				1.2	1.4
65	21/2	0.7		1.2	1.2	1.6	1.6				2.1	3.1
80	3	1.0		2.0	2.0	2.6	2.6				3.4	4.7
90	31/2	1.4		2.7	2.7	3.7	3.7					0.0
100	4	1.8		3.7	3.7	5.0	5.0				7.2	9.2
125	5	3.1		6.2	6.2	8.7	8.7				13.2	15.8
150	6	4.5		9.6	9.6	14.9	14.9		17.6		21.8	20.8
200	8	8.6	14.9	19.4	19.4	28.4	28.4	32.7	39	43.5	48	46.5
250	10	15.0	23.2	33.3	33.3	44.9	54.6	61.7	71.6	83.5	92.7	83.5
300	12	23.3	32.5	50.4	54.9	64.4	87.7	103.5	120.6	134.1	153.9	120.6
350	14	31.2	54.2	64.3	76.6	82.8	125.1	146.7	169.2	190.8	212.4
400	16	40.9	70.2	84.2	108.9	108.9	180	211.5	246.6	287.1	315
450	18	50.6	78.9	107.1	158.4	137.7	258.3	300.6	352.8		396	445.5
500	20	74.0	132.3	132.3	208.8	171.0	356.4	411.3	475.2	548.1	608.4
550	22	89.6	160.2	160.2		207.0	463.5	534.6	624.6	711.0	797.4
600	24	122.4	190.8	190.8	339.3	247.5	571.5	707.4	827.1	929.7	1044

Pipe Diameter and Thickness

While calculating the weight of elbow by formula, we should know dimensions, such as outside diameter, wall thickness in millimeter and long radius ( 1.5D) or short radius ( 1D).

Nominal Size		OD	5S	10S	10	20	30	STD	40S	40	60	XS	80S	80	100	120	140	160	XXS
mm	inch	mm
6	1/8	10.3		1.24				1.73	1.73	1.73		2.41	2.41	2.41
8	1/4	13.7		1.65				2.24	2.24	2.24		3.02	3.02	3.02
10	3/8	17.1		1.65				2.31	2.31	2.31		3.20	3.20	3.20
15	1/2	21.3	1.65	2.11				277	2.77	2.77		3.73	3.73	3.73				4.78	7.47
20	3/4	26.7	1.65	2.11				2.87	2.87	2.87		3.91	3.91	3.91				5.56	7.82
25	1	33.4	1.65	2.77				3.38	3.38	3.38		4.55	4.55	4.55				6.35	9.09
32	11/4	42.2	1.65	2.77				3.56	3.56	3.56		4.85	4.85	4.85				6.35	9.70
40	11/2	48.3	1.65	2.77				3.68	3.68	3.68		5.08	5.08	5.08				7.14	10.15
50	2	60.3	1.65	2.77				3.91	3.91	3.91		5.54	5.54	5.54				8.74	11.07
65	21/2	73.0	2.11	3.05				5.16	5.16	5.16		7.01	7.01	7.01				9.53	14.02
80	3	88.9	2.11	3.05				549	5.49	5.49		7.62	7.62	7.62				11.13	15.24
90	3.1/2	101.6	2.11	3.05				5.74	5.74	5.74		8.08	8.08	8.08
100	4	114.3	2.11	3.05				6.02	602	6.02		8.56	8.56	8.56		11.13		13.49	17.12
125	5	141.3	2.77	3.40				6.55	6.55	6.55		9.53	9.53	9.53		12.70		15.88	19.05
150	6	168.3	2.77	3.40				7.11	7.11	7.11		10.97	10.97	10.97		14.27		18.26	21.95
200	8	219.1	2.77	3.76		6.35	7.04	8.18	8.18	8.18	10.31	12.70	12.70	12.70	15.09	18.26	20.62	23.01	22.23
250	10	273.1	3.40	4.19		6.35	7.80	9.27	9.27	9.27	12.70	12.70	12.70	15.09	18.26	21.44	25.40	28.58	25.40
300	12	323.9	3.96	4.57		6.35	8.38	9.53	9.52	10.31	14.27	12.70	12.70	17.48	21.44	25.40	28.58	33.32	25.40
350	14	355.6	3.96	4.78	6.35	7.92	9.53	9.53		11.13	15.09	12.70		19.05	23.83	27.79	31.75	35.71
400	16	406.4	4.19	4.78	6.35	7.92	9.53	9.53		12.70	16.66	12.70		21.44	26.19	30.96	36.53	40.49
450	18	457.2	4.19	4.78	6.35	7.92	11.13	9.53		14.27	19.05	12.70		23.88	29.36	34.93	39.67	45.24
500	20	508.0	4.78	5.54	6.35	9.53	12.70	9.53		15.09	20.62	12.70		26.19	32.54	38.10	44.45	50.01
550	22	558.8	4.78	5.54	6.35	9.53	12.70	9.53			22.23	12.70		28.58	34.93	41.28	47.63	53.98
600	24	609.6	5.54	6.35	6.35	9.53	14.27	9.53		17.48	24.61	12.70		30.96	38.89	46.02	52.37	59.54

What is Formula of 90 Degree Elbow Weight

The weight formula is W=0.0387 * S*(D – S) * R / 1000, the unit is kg/piece. What’s the meaning of each letter? Let’s explain to you.

• W means Weight.
• S means Thickness in mm.
• D means Outside Diameter in mm.
• R means Radius that LR=1.5D, SR=1D.

Now we take “90 Degree Elbow LR Seamless 6″ Sch 40 BW ASTM A234 WPB” as sample. From above diameter and thickness chart, we know the outside diameter is 168.3mm and thickness is 7.11mm. The weight will be 0.0387 x 7.11 x ( 168.3 – 7.11 ）x 1.5 x 168.3 / 1000 = 11kg/piece.

ASME B16.11 Threaded Elbow Weight in kg

DN	NPS	2000	3000	6000
6	1/8	0.08	0.10	0.18
8	1/4	0.08	0.15	1.33
10	3/8	0.13	0.30	1.48
15	1/2	0.22	0.45	0.72
20	3/4	0.32	0.70	1.29
25	1	0.50	1.21	1.65
32	1-1/4	0.80	1.47	2.70
40	1-1/2	0.93	2.60	3.90
50	2	1.60	3.05	6.09
65	2-1/2	2.95	5.80	9.88
80	3	5.60	8.85	16.4
100	4	10.5	14.9	23.5

ASME B16.11 Socket Weld Elbow Weight in kg

DN	NPS	3000	6000	9000
6	1/8	0.09	0.15
8	1/4	0.09	0.15
10	3/8	0.12	0.32
15	1/2	0.26	0.4	0.85
20	3/4	0.35	0.65	1.48
25	1	0.52	1.25	2.2
32	1-1/4	0.85	1.4	2.9
40	1-1/2	1.05	2.35	3.5
50	2	1.75	2.96	4.35
65	2-1/2	2.80
80	3	4.60
100	4	9.60

17 11 月, 2025