Forged flanges in nickel alloy and stainless steel stacked after machining at Shanghai Hangbo Alloy Group

Weld neck flange in a nickel-based alloy with a machined raised face and drilled bolt holes

Concentric reducers in nickel alloy and stainless steel after dimensional inspection

Butt weld equal tee to ASME B16.9 in nickel-based alloy with bevelled ends

Product forms

Four product forms, 100+ alloy data sheets

Forged flanges, seamless pipe and tube, butt weld elbows and tees - a complete piping package in nickel alloys, superalloys, titanium and special stainless steel, all under one quality system.

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Forged nickel alloy flanges and discs with machined faces and drilled bolt holes

Weld neck, blind and slip-on flanges forged and finish machined in Shanghai.

Forgings & flanges

Forged Flanges

Weld neck, slip-on, blind, socket weld, threaded, lap joint and long weld neck flanges forged from nickel alloys, titanium, duplex and special stainless steel, Class 150 through Class 2500.

Six flange types: weld neck, long weld neck, slip-on, blind, socket weld, threaded and lap joint, plus spectacle blinds and spades to drawing.
ASME B16.5 for NPS ½ to 24 in Class 150, 300, 600, 900, 1500 and 2500; ASME B16.47 Series A and B for NPS 26 to 60.
Material to ASTM B564, B637, B381, A182, A240 or A350 depending on the alloy family requested.

Shelf display of nickel alloy tees, reducers, elbows and flanges

Equal and reducing tees, concentric and eccentric reducers, caps and stub ends.

Pipe fittings

Pipe Fittings – Tees, Reducers, Caps & Stub Ends

The full family of wrought butt weld fittings - equal and reducing tees, concentric and eccentric reducers, caps, crosses and lap joint stub ends - to ASME B16.9 and MSS SP-43.

Tees with an extruded outlet rather than a welded branch - no root crevice and better erosion behaviour in multiphase flow.
Reducing tees, barred tees for piggable lines and reinforced fabricated tees to drawing for large diameter manifolds.
Concentric and eccentric reducers; eccentric specified flat side up for pump suction to prevent vapour pockets.

Butt weld elbows, reducers, caps and flanges laid out for dimensional inspection

Butt weld elbows to ASME B16.9, wrapped for export.

Pipe fittings

Butt Weld Elbows

Hangbo manufactures butt weld elbows to ASME B16.9 dimensions (and MSS SP-43 for light wall) in Inconel, Hastelloy, Monel, Incoloy, titanium and duplex stainless steel, from NPS ½ to NPS 48.

45°, 90° and 180° patterns, long radius (1.5D) and short radius (1.0D), plus reducing elbows and 3D / 5D long bends.
Wall thickness Schedule 5S to XXS; NPS ½ to NPS 48 (DN 15 to DN 1200).
Material to ASTM B366, B363, A815 or A403 depending on alloy family; dimensions always to ASME B16.9.

Bundles of pickled seamless nickel alloy tubes stacked on a rack

Cold drawn seamless tube, pickled and 100 % tested before packing.

Mill forms

Seamless Tubes & Pipes

Pierced and cold rolled or cold drawn seamless tubing from 6 mm to 630 mm outside diameter, tested 100 % by hydrostatic or eddy current methods.

OD 6 mm to 630 mm with wall thickness from 0.5 mm to heavy wall to ASME B36.19M and B36.10M schedules.
100 % eddy current to ASTM E426 or hydrostatic testing; ultrasonic testing available for critical service.
Solution annealed and pickled, or bright annealed for hygienic and instrumentation applications.

Frequently asked questions about our product range

Do you cut material to length?

Yes. Fixed lengths, cut multiples and close tolerance blanks are supplied by band sawing or abrasive cutting, depending on the alloy, and every cut piece keeps the original heat number.

Can you combine several product forms in one shipment?

Yes. Consolidated shipments with a single certificate package are common and reduce freight cost, receiving time and the risk of documentation gaps.

Can you produce special sizes?

Special dimensions, non-standard schedules and drawing-based production are part of our service. Minimum quantities depend on whether a dedicated melt or tooling is required.

Which dimensional standards do you work to?

ASME B16.9 and MSS SP-43 for butt weld fittings, ASME B16.5 and B16.47 for flanges, ASME B36.10M and B36.19M for pipe wall thickness, plus customer drawings for special fittings.

Alloy families

Featured grades