A 90° elbow long tangent is a long radius (LR) with the centerline curvature equal to 1-1/2 times the nominal pipe size (NPS) and a straight extension at both ends (long 

Generally, their size designations are either long radius or short radius. The ASTM A234 WP11 long radius elbow is usually adequate for standard service conditions. The center-to-end dimension is always 1-1/2 times the nominal size of the elbow. ASTM A234 WP11 Short radius elbows have a center-to-end measurement equl to pipe diameter.

ASTM A234 WP11 long radius elbow costs less than a short radius fittings. ASTM A234 WP11 Long radius elbows offer minimum resistance to flow consistent with space savings and presently account for more than 90 percent of all elbows in use.

1. ASTM A234 WP11 45° Long Radius Elbow

2. ASTM A234 WP11 90° Long Radius Elbow

3. ASTM A234 WP11 180° Long Radius Elbow

Materials: ASTM A234/ ASME SA234 WPB WP11, Wp9, WP11, WP12, WP22 & WP91

ASTM A234 WP11 LR Elbow Fittings Specifications

Grade Specifications	Chrome Moly Grades P1, P5, P9, P11, P22, P91
Specification	ASTM/ ASME A/SA234 WP1, WP11, WP9, WP11, WP22, WP91
Type	Seamless / Welded / Fabricated / Forged
Bending Radius	R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Range	½" NB to 48″ NB in Sch 10s, 40s, 80s, 160s, XXS.
Dimensions	ANSI/ASME B16.9, B16.28, MSS-SP-43.
Applicable Standards	1-ASME B 16.9 for large Bore  2-ASME B 16.11 for small Bore (socket welded) 3-ASME B 16.25 for butt weld ends 4-ASME B 16.28 for small radius elbow
End Prep:	Beveled Ends Squared Ends Flanged Ends Cut Grooves Victaulic Grooves Threaded Ends (Male & Female)

ASTM A234 WP11 LR Elbow Fittings Chemical Composition

Grade	C	Mn	Si	S	P	Cr	Mo
A234 WP11	≤0.15	≤0.6	≤0.5	≤0.04	≤0.03	4-6	0.44-0.65

ASTM A234 WP11 LR Elbow Fittings Mechanical Properties

Grade	Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation %
A234 WP11	415 – 585	≥205	≥20

Export Destination of Alloy Steel Pipe Fitting ASTM A234 WP11 LONG Radius LR Elbows

We have exported Alloy Steel Pipe Fittings ASTM A234 WP11 LONG Radius LR Elbowsto over 60 countries including Sudan,UAE, UK, Iran, Iraq, Qatar, Bahrain, Oman, Yemen, Lebanon, Jordan, Saudi Arabia, Malaysia, Indonesia, Singapore, Australia, New Zealand, USA, Canada, Mexico, Brazi, Netherlands, Germany, Italy, Spain, Serbia, Kuwait, Peru, Nigeria, Poland, South Africa, Denmark, Turkey, Egypt, Venezuela, Kuwait, Madagascar, Angloa & Srilanka.

• Long Radius (LR) Elbow is also called  lr elbow – means the radius is 1.5 times the pipe diameter
  • L/R 45°Elbow: Long radius 45 degree elbow changes the direction by 45 degrees.
  • L/R 90°Elbow: Long radius 90 degree elbow changes the direction by 90 degrees.
  • L/R 180°Elbow: Long Radius 180 degree return bend allows complete reversal of flow.
• Short Radius (SR) Elbow is also called sr elbow, – means the radius is 1.0 times the pipe diameter
  • Short radiu 45°Elbow: Short radius 45° elbow changes the direction by 45 degrees.
  • Short radius 90°Elbow: Short Radius 90° elbow is same as LR90 except for the measurement between end of elbow to center line is 1 x NPS.
  • Short radius 180° Elbow: Short Radius 180° return bend allows complete reversal of flow

Size range:

• Seamless elbow: 1/2"-24" DN15-DN600
  
• Welding elbow: 6"-72" DN150-DN1800
• Wall thickness: Sch5-Sch160 XXS
• External arc length of elbow

Recommended type of pipe elbows:

• Large Diameter Fitting elbow

• A234WP9 LR Elbow

• Small size elbow
• Socket Elbow, Socket Weld Pipe Fitting

• Forged  Elbow, Stainless Steel Forging Elbow

• China A860 Wphy60 elbow 

• Stainless Steel Threaded Fittings Elbow