3D & 5D Bends

Butt Welding Pipe Fittings

Size: 1/2"-80"/DN15-DN2000

Technical: Forged and pushing

Material: Carbon Steel, Stainless Steel, Alloy Steel

Carbon Steel:ASTM, A234WPB, A234WPC, A420WPL6, Q235,10#, A3, Q235A, 20G, 16Mn, DIN St37, St45.8, St52.4, St.35.8, St.35.8.

Stainless Steel:1Cr18Ni9Ti 0Cr18Ni9 00Cr19Ni10 0Cr17Ni12Mo2Ti,00Cr17Ni14Mo2 304 304L 316 316L

Alloy Steel:16Mn Cr5Mo 12Cr1MoV 10CrMo910 15CrMo 12Cr2Mo1,A335P22 St45.8, ASTM A860 WPHY X42 X52 X60 X70

Standard: ASME/ANSI B16.9, B16.11, B16.28, JIS B2311, B2312, B2312, B2316 ASTM A403 MSS SP-43, SP-83, SP-97

Model: 45°/ 90°/180 LR/SR Elbow, Reducers, Tee, Bends, Cap, Cross.

Type: Seam Or Seamless

End: beveled end

Surface: Black Paint/Rust-proof Oil/Hot Dipped Galvanized

Wall Thickness: SCH10/10S, SCH20/20S, STD, SCH40/40S, XS, SCH80,SCH100, SCH120, SCH140, SCH160, XXS etc.(for ANSI),SGP(for JIS)

Elbow Angles: 30/45/60/90/180°

Connection: Welding

Shape:Equal, Reducing

Certificate: ISO -9001:2000, API, CCS

Application:Petrochemical & Gas industry, Power industry, Valve industry, Water works, Shipbuilding industry, Construction etc

Packing: Plywood Pallets/ Wooden Case Or As Per your Specification

MOQ: to be negotiated.

Sample: Available

Price: >>Get newest price list

Service: Customized OEM

Pakage: wooden case & pallet

Payment term: T/T or L/C

Delivery:7-30days according to order quantity.

Introduction

Butt weld 3D & 5D bends is a kind of  butt weld fittings.

Pipe bends can be manufactured based on custom radius requirements provided by customers such as 3D, 5D, 6D, 10D, 15D or any other custom radius. Elbows are generally used, when the radius required is 1D, 1.5D or 2D, it is 90 elbow LR or SR.

Butt welding fittings are components used to connect pipes by welding.There are virous types of butt welding pipe fittings:elbow,tee,cross,reducer and cap etc.,

The key specifications for buttweld fittings are the ASME B16.9 (carbon and alloy fittings) and the MSS SP 43 (that integrates ASME B16.9 for stainless steel, duplex, and nickel alloy BW fittings).

Butt welding fittings can be used at high pressure piping connections.They are strong and have a long service life.Besides they are rather cheap to buy and deploy.


The 3D&5D bends is very similar with elbow. They have same diameter range, wall thickness, raw material and end form. What is the difference between them? It is the radius.  The steel elbow have long radius(R=1.5D) or short radius(R=1D) type. While bends radius is larger, such as 3D, 4D, 5D, 6D, 7D, 8D, 9D and 10D.


Weight Calculation Formula of 5D Bend

W=0.0387 * S( D – S ) * 5* D/ 1000

W = Weight (kg/piece).

S = Thickness Schedule.

D = Nominal Diameter.

Please contact Eathu for the weight list.


Package for bends:

Bundle into pallets, then use strapping and plastic film for reinforcement。

For size over 24" 5D bends, put into container without pallet.

Before the shipment eathu will submit you the packing list.

ASME B16.9: 3D & 5D bends


Dimensions of 3D Elbows - ASME B16.9

NPSODCenter to End
90° Elbows, A45°Elbows, B
3/426.75724
133.47631
1 ¼42.29539
1 ½48.311447
260.315263
7319079
388.922995
3 ½101.6267111
4114.3305127
5141.3381157
6168.3457189
8219.1610252
10273762316
12323.8914378
14355.61067441
16406.41219505
184571372568
205081524632
225591676694
246101829757
266601981821
287112134883
307622286964
3281324381010
3486425911073
3691427431135
3896528961200
40101630481264
42106732001326
44111833531389
46116835051453
48121936581516

*All dimensions are in mm unit(inch unit data sheet is also available upon request).

*Check the tolerances and materials for butt welding pipe fittings from "Price List and Techinical"

*Tolerances of dimensions are in conformance with ASME B16.9


Butt welding pipe fittings standard: 

ASME B16.49-2007 Factory-Made,Wrought Steel, Buttwelding Induction Bends for Transportation and 

ASME-B16.9-2007 Factory-Made Wrought Butt Welding Fitting

DIN2617-1991 Steel butt-welding pipe fittings

JIS G3452 SGP 1997  Steel Butt-welding pipe fittings for ordinary use

Weight for butt welding pipe fitting

Tolerances for ASME DIN JIS MSS Butt Welding Pipe Fittings

Wall Thickness Schedules (ASME B36.10 B36.19)



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