Pipe Elbow Suppliers,Manufacturers in china

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Steel Pipe Fittings

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seamless pipe, carbon pipe,stainless pipe,octg pipe manufacturers

Steel Pipe Fittings

We are committed to providing one-stop service for steel pipe products to customers around the world.

Pipe Elbow Suppliers,Manufacturers in china

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Pipe Elbow

Category : Steel Pipe Fittings

Product:Long Radius Elbow, Short Radius Elbow, LR Elbow, SR Elbow

Size:1/8" NB TO 48" NB (Seamless & Welded)

Wall Thickness: Sch.5S to Sch.XXS

Bending Radius:R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom Pipe Fittings

Material:

carbon steel ASTM, A234, WPB / A420, WPL3 / A420, WPL6 / MSS-SP-75, WPHY 42 / 46 / 52 / 56 / 60 / 65 / 70

Stainless Steel ASTM, A403, WP304 / 304L / 304H / 316 / 316L / 317 / 317L / 321 / 310 / 347 / 904L

ALLOY STEEL ASTM A234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91

Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500

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Description
Specification
Standard
Process
Packing

What is Elbow Radius?

The elbow radius mean curvature radius. If the radius is the same as pipe diameter, it called short radius elbow, also called SR elbow, normally for low pressure and low speed pipelines.

If the radius is larger than pipe diameter, R ≥ 1.5 Diameter, then we call it a long radius elbow (LR Elbow), applied for high pressure and high flow rate pipelines.

Classified by Direction Angle

As we know, according to fluid direction of the pipelines, elbow can be divided into different degrees, such as 45 degree, 90 degree,180 degree, which are most common degrees. Also there has 60 degree and 120 degree, for some special pipelines.

45 degree elbow

45 degree elbow of long radius

The pipe elbow is mounted between two pipes so that the fluid direction can be changed to 45 degrees. Compared to 90 degree elbow, 45 degree elbow produces less friction, and with the lower pressure.

45 degree elbow of short radius

SR Elbow in 45 degree is usually attached to copper, plastic, steel, cast iron and lead, and can also be connected to stainless and rubber fixtures. It is widely used in chemical, food, water supply facilities, electronic industry, chemical pipelines, horticulture, agriculture production, solar equipment pipelines, air conditioning pipeline and other fields.

90 degree steel pipe elbow

Long radius 90 degree elbow

LR 90 degree steel pipe elbow are installed between different lengths pipe or tubing. It helps to change direction at 90 degree, and is commonly used to connect hoses to pumps, deck drains and valve.

Short radius 90 degree elbow

SR 90 degree elbow is the same as the pipe elbow mentioned above, but the diameter is shorter. Therefore, this kind of steel elbow is often used when space is not enough.

180 Degree Steel Elbow

180 Degree steel elbow helps change direction at 180 degrees, since it usually results in low pressure. Its application is limited to minimal deposition and low turbulence system.

Nominal pipe size		Outside Diameter at Bevel		Center to End			Center to Center		Back to Faces
				45°Elbows	90°Elbows		180°Return
				H	F		P		K
DN	INCH	Series A	Series B	LR	LR	SR	LR	SR	LR	SR
15	1/2	21.3	18	16	38	-	76	-	48	-
20	3/4	26.9	25	16	38	-	76	-	51	-
25	1	33.7	32	16	38	25	76	51	56	41
32	11/4	42.4	38	20	48	32	95	64	70	52
40	11/2	48.3	45	24	57	38	114	76	83	62
50	2	60.3	57	32	76	51	152	102	106	81
65	21/2	76.1(73)	76	40	95	64	191	127	132	100
80	3	88.9	89	47	114	76	229	152	159	121
90	31/2	101.6	-	55	133	89	267	178	184	140
100	4	114.3	108	63	152	102	305	203	210	159
125	5	139.7	133	79	190	127	381	254	262	197
150	6	168.3	159	95	229	152	457	305	313	237
200	8	219.1	219	126	305	203	610	406	414	313
250	10	273.0	273	158	381	254	762	508	518	391
300	12	323.9	325	189	457	305	914	610	619	467
350	14	355.6	377	221	533	356	1067	711	711	533
400	16	406.4	426	253	610	406	1219	813	813	610
450	18	457.2	478	284	686	457	1372	914	914	686
500	20	508.0	529	316	762	508	1524	1016	1016	762
550	22	559	-	347	838	559	Note: 1. Do not use the figures in the parenthesis as far as possible 2. Please first select A series.
600	24	610	630	379	914	610
650	26	660	-	410	991	660
700	28	711	720	442	1067	711
750	30	762	-	473	1143	762
800	32	813	820	505	1219	813
850	34	864	-	537	1295	864
900	36	914	920	568	1372	914
950	38	965	-	600	1448	965
1000	40	1016	1020	631	1524	1016
1050	42	1067	-	663	1600	1067
1100	44	1118	1120	694	1676	1118
1150	46	1168	-	726	1753	1168
1200	48	1220	1220	758	1829	1219

ASTM A234 WPB, ASME B16.9,MSS SP-43,DIN 2617,JIS B2313 ,GB/T12459,GB/T13401,SH3408,SH3409,HG/T21635,HG/T21631

Materials:
Carbon Steel:ASTM A234 WPB WPC A105 A106 A53 A283-D API5LB A671-CC-70 A515-50 A135-A A179-C,etc
Stainless Steel:304/304L, 316/316L,316Ti,321,317L,310S,etc
Alloy Steel:A335-P1,P2 ,P5 ,P11,P12 ,P22,P91,P92,A369-FP1,P2 A250-T1 A209-T1 A213-T2,T9 ,T12 A199-T11,T22,
Duplex Stainless Steel: S31803(SAF2205),S32750(SAF2507),S31500(3RE60)

ASTM A234	Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service
ASTM A420	Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service
ASTM A403	Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings
ASME B16.9	Factory Made Wroght Steel Butt Welding Fittings

ASTM A234

Standard	Grade	C	Si	Mn	P	S	V	Nb	Ti	Cr	Mo	Ni	Al	Nb	N	Others
Standard	Grade	max	max	max	max	max	max	max	max	max	max	max	max	max	max	max
A234	WPC	0.28	-	1.20	0.030	0.030	-	-	-	-	-	-	-	-	-	-
	WPB	0.28	-	1.20	0.030	0.030	-	-	-	-	-	-	-	-	-	-
	WP11	0.05-0.15	0.50-1.0	0.30-0.60	0.025	0.025	-	-	-	1.00-1.50	0.44–0.65	-	-	-	-	-
	WP22	0.05-0.15	0.50	0.30-0.60	0.025	0.025	-	-	-	1.90-2.60	0.87–1.13	-	-	-	-	-
	WP5	0.15	0.50	0.30-0.60	0.025	0.025	-	-	-	4.00-6.00	0.45–0.65	-	-	-	-	-
	WP9	0.15	0.25-1.0	0.30-0.60	0.025	0.025	-	-	-	8.00-10.00	0.90–1.10	-	-	-	-	-
	WP91	0.08-0.12	0.20-0.50	0.30-0.60	0.020	0.010	0.18–0.25	-	-	8.00-9.50	0.85–1.05	0.40	0.04	-	0.03–0.07	Cb 0.06–0.10
	WP92	0.07-0.13	0.5	0.30-0.60	0.020	0.010	0.15–0.25	-	-	8.50-9.50	0.30–0.60	0.40	0.04	-	0.03–0.07	Cb 0.04–0.09 W 1.5–2.00 B 0.001–0.006

ASTM A420/A420M

Steel No.	Type	Chemical composition
Steel No.	Type	C	Si	S	P	Mn	Cr	Ni	Mo	Other	ób	ós	δ5	HB
WPL6	0.3	0.15-0.3	0.04	0.035	0.6-1.35	0.3	0.4	0.12	Cb:0.02;V:0.08	415-585	240	22
WPL9	0.2		0.03	0.03	0.4-1.06		1.6-2.24			435-610	315	20
WPL3	0.2	0.13-0.37	0.05	0.05	0.31-0.64		3.2-3.8			450-620	240	22
WPL8	0.13	0.13-0.37	0.03	0.03	0.9		8.4-9.6			690-865	515	16