Pipe weight per meter chart (kg/m / lb/ft):

Seamless Butt Welding Fittings Weight Chart

Seamless butt welding fittings weigh the same as the pipe they are made from, over the length of the fitting. Makers form them from seamless pipe or a forged billet. They run from NPS 1/2 to NPS 24 in ASTM A234 WPB and A403 WP304/316. Sch 40 equals STD up to NPS 10, and Sch 80 equals XS up to NPS 8. The tables below compare the main fittings at Sch 40 and Sch 80 (kg / lb).

Sch 40 (STD):

Sch 80 (XS):

Welded Butt Welding Fittings Weight Chart

Welded butt welding fittings weigh almost the same as seamless fittings of the same wall. Makers roll plate or use welded pipe, then weld the seam. The seam adds very little weight. Welded fittings suit large sizes, from NPS 14 to NPS 48 and above, in ASTM A234 WPB-W and A403 WP304-W. Wall thickness is the key input here, so columns show wall in mm and inches (kg / lb).

90° LR welded elbow:

45° LR welded elbow:

Welded equal tee (NPS 14–24):

Welded cap (NPS 14–24):

Butt Weld Elbow Weight Chart

A 4" Sch 40 90° long radius elbow weighs 3.85 kg (8.48 lb). The bend radius is 1.5 × NPS under ASME B16.9. Use the 45° chart for half bends. For a 180° return bend, double the 90° value.

90° LR elbow (kg / lb):

45° LR elbow (kg / lb):

90° 3D elbow (kg / lb): a 3D elbow has twice the bend radius of an LR elbow, so it weighs twice as much.

Butt Weld Tee Weight Chart

A 4" Sch 40 equal butt weld tee weighs 5.06 kg (11.16 lb). The weight follows three times the center-to-end dimension, since run and branch are the same length on an equal tee. A reducing tee weighs 5% to 15% less, because the branch pipe is smaller. A cross weighs about 4/3 of the equal tee.

Equal tee (kg / lb):

Butt Weld Reducer Weight Chart

A 4×3 Sch 40 reducer weighs 1.40 kg (3.08 lb). Concentric and eccentric reducers weigh the same. Each reducer weighs about the average of its two pipe sizes times the length H from ASME B16.9.

Concentric / eccentric reducer (kg / lb):

Butt Weld Pipe Cap Weight Chart

A 4" Sch 40 butt weld cap weighs 1.03 kg (2.27 lb). A cap is a short pipe length with a closed, domed end. The chart uses the ASME B16.9 overall length E.

Butt weld cap (kg / lb):

Stub End Weight Chart

Stub end weight equals the pipe weight per meter times the stub length, plus a few percent for the flared lap. Short and long patterns follow ASME B16.9 and MSS SP-43. Take the kg/m value from the pipe weight chart above, then multiply by the stub length F in meters.

Example: A 4" Sch 40 stub end, 152 mm long, weighs 16.07 × 0.152 = 2.44 kg (5.39 lb) before the lap. A long pattern stub end uses more pipe than a short one. Match the stub end schedule to the pipe schedule so the weld ends line up.

Stainless Steel Pipe Fittings Weight Chart

Stainless steel fittings weigh about 1% to 2% more than carbon steel fittings of the same size, because stainless has a higher density. Take the carbon steel weight and multiply it by the grade factor.

90° LR stainless steel elbow (kg / lb):

Chemical composition of stainless steel fittings (%):

Mechanical properties of stainless steel fittings:

Carbon Steel Pipe Fittings Weight Chart

Carbon steel fittings use a factor of 1.00, and every weight chart on this page uses carbon steel as the base. For other grades, apply the factor from the stainless steel table. The grades below cover most carbon steel butt weld fittings.

Chemical composition of ASTM A234 WPB / WPC (%):

Mechanical properties of ASTM A234 WPB / WPC:

Forged Pipe Fittings Weight Chart

Forged pipe fittings have thick, strong walls designed to handle high pressure. Their weight depends on the fitting type, size, pressure class, and material grade.

The ASME B16.11 standard covers socket-weld fittings in Classes 3000, 6000, and 9000, as well as threaded fittings in Classes 2000, 3000, and 6000. These fittings are available in sizes from 1/8 inch to 4 inches. In general, higher pressure classes require thicker fitting walls, which can increase the overall weight.

Common forged fittings include elbows, tees, couplings, unions, and caps. Carbon steel versions often use ASTM A105, while stainless steel options may use ASTM A182 F304 or F316. To estimate stainless steel fitting weights, apply the appropriate material factors to the base weights, where applicable. Actual weights may vary by manufacturer, dimensions, and material grade.

Applications of Pipe Fittings

• Oil and Gas: Join pipelines, risers and process piping.
• Petrochemical: Handle hot, corrosive fluids in plant lines.
• Power Generation: Carry steam and feedwater in boilers and turbines.
• Water Treatment: Connect desalination and distribution lines.
• Shipbuilding: Route seawater, fuel and cooling lines on vessels.
• Pharmaceutical and Food Processing: Keep clean fluid lines in stainless steel.
• Fertilizer and Chemical Plants: Resist acids, ammonia and urea.

Pipe Fittings Manufacturer and Supplier in India

We manufacture and supplies seamless and welded butt-weld pipe fittings for industrial projects in India and international markets. Our monthly production capacity is approximately 50–55 metric tonnes, covering carbon steel, stainless steel, duplex steel, and nickel alloys.

Our product range includes:

• Fitting types: Elbows, tees, reducers, caps, stub ends, and crosses.
• Size range: NPS 1/2 to NPS 48.
• Wall thicknesses: Schedules 10S, 40, 80, 160, and XXS.
• Industry standards: Products manufactured to applicable requirements of ASME B16.9, ASME B16.28, ASME B16.11, and MSS SP-43, depending on the fitting type.
• Quality documentation: EN 10204 Type 3.1 inspection certificates available as applicable.
• Custom requirements: Weight charts, dimensional details, and special sizes available on request.

We support customers with pipe fittings for industrial piping systems, helping them find suitable products based on project specifications, material grades, dimensions, and applicable standards.