ASTM A234 WP11-S 180 Degree U Bend For Piping Systems

Product Details:

Place of Origin:	China
Brand Name:	YuHong
Certification:	ISO,PED, TUV, ABS, DNV, GL , LR , KR, BV, CCS, COST
Model Number:	ASTM A234 WP11-S 180 Degree U Bend

Payment & Shipping Terms:

Minimum Order Quantity:	1 PC
Price:	Negotiable
Packaging Details:	Ply-wooden Cases/Pallets
Delivery Time:	Generally within 30 Days
Payment Terms:	T/T,L/C AT SIGHT
Supply Ability:	According to Clients' requirements

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Detailed Product Description

Product Name:	180 Degree Return Bend	Specification:	ASTM A234
Material:	WP11-S	Radius:	LR Or SR (Depend On Customer's Requirements)
Surface:	Black Painted Or Oiled	Test:	Size Inspection, Visual Inspection, NDE Test...
Size Standard:	ASME B16.9	Application:	Heat Exchangers, Piping Systems, Oil And Gas Industry, Water Tretment
Highlight:	semi circular 15mm return bend , Oiled 15mm return bend , ASME B16.9 return bend plumbing

ASTM A234 WP11-S 180 Degree U Bend For Piping Systems

Product Description

ASTM A234 WP11-S 180 Degree U Bend is designed for high temperature and pressure applications. This pipe fitting curves back in a semi-circular or U-shaped pattern, changing flow direction by 180 degrees, ideal for space-constrained piping systems and thermal expansion management.

Key Features

Shape & Geometry: Forms a complete half-circle (U-shape) with specified bend radius as a multiple of pipe diameter
Types: Short Radius (1D) for tight spaces or Long Radius (1.5D+) for smoother flow
Manufacturing: Hot induction bending for thick walls, cold bending for smaller pipes, or mandrel bending
Materials: Carbon steel, alloy steel (ASTM A234 WP11), stainless steel, or nickel alloys
End Connections: Plain ends for welding, beveled ends for butt welding, or threaded ends

Advantages vs. Two 90° Bends: Fewer welds reduce leak risks, lower pressure drop for smoother flow, and more compact design for tight spaces.

ASTM A234 WP11 Chemical Composition (%)

Element	WP11 Class 1	WP11 Class 2	WP11 Class 3
Carbon (C)	0.05-0.15	0.05-0.20	0.05-0.20
Manganese (Mn)	0.30-0.60	0.30-0.80	0.30-0.80
Phosphorus (P)	≤ 0.030	≤ 0.030	≤ 0.030
Sulfur (S)	≤ 0.030	≤ 0.030	≤ 0.030
Silicon (Si)	0.50-1.00	0.50-1.00	0.50-1.00
Chromium (Cr)	1.00-1.50	1.00-1.50	1.00-1.50
Molybdenum (Mo)	0.44-0.65	0.44-0.65	0.44-0.65
Nickel (Ni)	≤ 0.50	≤ 0.50	≤ 0.50
Vanadium (V)	-	-	≤ 0.03
Columbium (Cb)	-	-	≤ 0.08

ASTM A234 WP11 Mechanical Properties

Property	WP11 Class 1	WP11 Class 2	WP11 Class 3
Tensile Strength (MPa)	≥ 415	≥ 485	≥ 485
Yield Strength (MPa)	≥ 205	≥ 275	≥ 275
Elongation (%) (min)	20	20	20
Hardness (HB) (max)	197	197	197

Notes: WP11 Class 1 is standard grade, while Classes 2 & 3 offer higher strength through modified heat treatment (Class 3 includes micro-alloying elements). Suitable for high-temperature service up to 593°C (1100°F).

Applications

Power Plants: Boiler systems, steam lines, and thermal expansion loops
Oil & Gas Refineries: Crude oil processing and high-pressure gas lines
Chemical Plants: Resistant to sulfur compounds and acidic/alkaline environments
Steam Systems: Steam distribution networks up to 593°C
Heating/Cooling: Heat recovery systems and condensers

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