Stub End

Stub ends are often installed in pairs and mated together with two lap joint flanges. The use of stub ends allows sections pipe to be opened for inspection, cleaning or replacement without the need for additional welding.

Material & Grades of Buttweld Long Stub End :

Stainless Steel Buttweld Long Stub End :

ASTM A403 WP316/316L, ASTM A403 SA / A 774 WP-S, WP-W, WP-WX 304/304L, ASTM A182 F316L, 304L, DIN

1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404

 

Duplex & Super Duplex Steel Buttweld Long Stub End :

ASTM A 815, ASME SA 815 UNS NO S31803, S32205. UNS S32750, S32950. Werksto No. 1.4462

 

Carbon Steel Buttweld Long Stub End :

ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.

Low Temperature Carbon Steel Buttweld Long Stub End : ASTM A420 WPL3, A420 WPL6

 

Alloy Steel Buttweld Long Stub End :

ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91

 

Nickel Alloy Buttweld Long Stub End :

ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No.

N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel

600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No.

N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Cupro-Nickel 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe.

 

Advantages of Stub ends :

Easy to prepare (does not require cut faces to be parallel or perfectly flat).
Can be formed between two dissimilar metals, such as aluminum and copper.
Accommodates different thicknesses (thinner piece must be welded on top).
Thin material such as diaphragms and foils can be joined.