These lap joint stub end is a fittings that are used in the place of welded flanges to support the rotating back of flanges when required. Stub end is the other name for lab joints, it is used in the place of welded flanges where the rotating are desired. The features for this product are it is thermal stability, high mechanical strength and has long functional life. ASTM ASME A/SA 403, MSS SP43 & SP75 ANSI B16. 9ANSI B16. 28 ASTM A815 ASTM B363 B366, DIN2605 DIN2615 DIN2616 DIN2617, GB12459GB13401 and JIS2313 are the standard types used for manufacturing. All specifications are grades as ASME/ ASTM and A23, the materials by which it is made are stainless steel, 316/316L stainless steel, 304/304L stainless steel and chrome-moly along with carbon steel.
Production Range
outside Diameter:1/2″ – 24″
Type: Long/Short Lap Joint Stub Ends
Wall Thickness: 2mm – 100 mm / SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH120, SCH140, SCH160, XXS
Production Grades: Stainless Steel, Alloy Steel, Duplex, High Nickel Alloys, Low temperature Steel, Carbon Steel, Cupro Nickel
Value Added Services: Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Threading, Soldering
| Lap joint( stub ends) | |
| Pattern | large OD lap joint, alloy lap joint, long Lap joint |
| size | 1/8”-48” |
| Pressure class | 100#-2500# |
Manufacturing Standards
ASME:
ANSI B16.9, ANSI B16.28, MSS-SP-43
DIN: DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
EN: EN10253-1, EN10253-2
ASTM
A403 – ASME SA403 – Standard
Specification for Wrought Austenitic Stainless Steel Piping Fittings
ASME B16.9 – Factory-Made Wrought Fittings Butt-welding
ASME B16.25 – Buttwelding Ends ASME B16.28 – Wrought Steel Short
Radius Elbows and Buttwelding Returns
MSS SP-43 – Wrought and Fabricated Butt-Welding Fittings for Low
Pressure, Corrosion Resistant Applications
Material Grades Stainless Steel Stub End; ASTM A403 WP Gr. 304, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Carbon Steel Stub End: ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Low Temperature Carbon Steel Stub End: ASTM A420 WPL3, A420 WPL6
Alloy Steel Stub End: ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91
Duplex Steel Stub End: ASTM A 815, ASME SA 815 UNS NO S31803, S32205.
High Nickel Alloy Stub End: ASTM / ASME SB 336 UNS 2200 ( NICKEL 200 ),