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ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings

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ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings

ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings
ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings

Large Image :  ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings

Product Details:
Place of Origin: China
Brand Name: Stainless steel Butt welding stub ends
Certification: ISO9001
Model Number: LJ-PF018
Payment & Shipping Terms:
Minimum Order Quantity: 100pcs
Price: 1USD-100USD
Packaging Details: Export standard packaging
Delivery Time: Depends on the quantity of goods
Payment Terms: L/C, T/T
Supply Ability: Annual output 50000 tons

ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings

Description
Product Name:: Stainless Steel Butt Welding Stub Ends Standard:: GB / ANSI /JIS / DIN
Species:: Butt Welded Pipe Fittings Material:: Stainless Steel
Application:: Connecting Loose Flange Head Code: Round
High Light:

Ss Stub End

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Stainless Steel Stub Ends

Description


Stub ends is a kind of steel butt welded pipe. It is usually a section inside the loose flange. Loose flange is commonly known as looper flange, including welding looper flange, flanging looper flange and butt welding looper flange.  It is often used in the case of medium temperature and pressure are not high and medium corrosion is strong.

When the medium corrosion is strong, the flange contact medium part is Stub ends, mainly using high-grade corrosion-resistant materials such as stainless steel and other materials. On the outside, the flange ring of low-grade material such as carbon steel is used to clamp it to achieve sealing. Flanging overview: flanging is a stamping process. There are many kinds of flanging and different classification methods. According to the deformation properties, it can be divided into elongation flanging and pressure flanging shrinkage flanging.

Flanging: refers to the forming method of turning and erecting the straight edge along a certain curve at the edge of the plane part or curved surface part of the blank.  The main factors affecting the ultimate flanging coefficient are: (1) the larger the elongation δ, strain hardening index and anisotropy coefficient of the plastic material are, the smaller the ultimate flanging coefficient is, which is conducive to flanging.

Production process


1, Processing method of butt welding flanging short joint hole: the processing method of prefabricated hole determines the edge condition of the hole.

2, When the edge of the hole is free of burr, tear, hardening layer and other defects, the smaller the limit flanging coefficient is, which is conducive to flanging.

3, At present, the prefabricated holes are mainly processed by punching or drilling methods. The data shows that the min of drilling is smaller than that of general punching.

4, The conventional punching method has high production efficiency and is especially suitable for machining large holes, but it will cause the defects of hardening layer, burr, tear and so on on on the surface of the holes, which will lead to the increase of the ultimate flanging coefficient.

5, The lower limit flanging coefficient can be obtained by means of heat treatment annealing after punching, hole repair or hole turning in the opposite direction of punching to make the burr in the inner side of the hole.

6, The method of deburring after drilling can also obtain lower limit flanging coefficient, but the production efficiency is lower.

7, Relative diameter of preformed hole of butt welding flanging short joint: the smaller the relative diameter of preformed hole is, the smaller the ultimate flanging coefficient is, which is conducive to flanging.

Technical data sheet 


ANSI Butt Welding Ss Stub End Stainless Steel Pipe Fittings data sheet

Nominal
Diameter
Outside Diameter Length Diameter of Lap Nominal&Maximum R
DN NPS OD LP SP G A Max B Max
15 1/2 21.3 76 51 35 3 0.75
20 3/4 26.7 76 51 43 3 0.75
25 1 33.4 102 51 51 3 0.75
32 1.1/4 42.4 102 51 64 5 0.75
40 1.1/2 48.3 102 51 73 6 0.75
50 2 60.3 152 64 92 8 0.75
65 2.1/2 73.0 152 64 105 8 0.75
80 3 88.9 152 64 127 10 0.75
90 3.1/2 101.6 152 76 140 10 0.75
100 4 114.3 152 76 157 11 0.75
125 5 141.3 203 76 186 11 1.5
150 6 168.3 203 89 216 13 1.5
200 8 219.1 203 102 270 13 1.5
250 10 273.1 254 127 324 13 1.5
300 12 323.9 254 152 381 13 1.5
350 14 355.6 305 152 413 13 1.5
400 16 406.4 305 152 470 13 1.5
450 18 457.2 305 152 533 13 1.5
500 20 508 305 152 584 13 1.5
550 22 559 305 152 641 13 1.5
600 24 610 305 152 692 13 1.5

 

Specification 


1.Manufacturing standards of flanging: MSS sp-43, ASME b16.9, GB / t12459, etc. Materials are carbon steel, stainless steel, alloy steel, etc.

2.Langing aperture D and material thickness T, the preformed aperture that can be flanged is smaller, so the ultimate flanging coefficient is smaller.

3.Flanging deformation, the spherical or conical punch is the first contact between the front end of the punch and the preformed orifice, the bending deformation in the die mouth area is smaller than that of the flat bottom punch, and it is easier to produce plastic deformation at the orifice.

ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings 0

 

4.  According to the law of volume invariance, the ultimate tangential strain value increases when the edge of the deformation area is about to crack during flanging. It can be seen that the ultimate flanging coefficient is smaller.

5. Shape of punch: the limit flanging coefficient of spherical punch is smaller than that of flat bottom punch.

6. In addition, the limit flanging coefficient of the punch with paraboloid, conical surface and large fillet radius is smaller than that of the punch with flat bottom.

ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings 1

Package


a. Plastic bubble bag package b.Wove bag package c.Pallet d. Customized

Delivery time


Our ANSI Butt Welding SS Stub End Stainless Steel Pipe Fittings factory have high ability for production, the delivery time is 45days for small quantity, or if you are hurry for that, we can arrange and meet your shipping date.

Contact Details
Xi'an Longjoy Foreign Trade Co.,Ltd

Contact Person: Rachel Zhang

Tel: 13679287344

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