Questions & Answers
Stainless steel elbows are made from: 20Kh23N18, 10Kh23N18, 06KhN28MDT, 03Kh17N14M3, 10Kh17N13M2T, 08Kh18N10T, 12Kh18N10T, 08Kh18N10.
Stainless steel plugs are made from: 08Kh18N10T, 12Kh18N10T, 08Kh18N10, 20Kh23N18, 10Kh23N18, 06KhN28MDT, 03Kh17N14M3, 10Kh17N13M2T.
Stainless steel couplings are made from: 03Kh17N14M3, 10Kh23N18, 06KhN28MDT, 12Kh18N10T, 08Kh18N10, 10Kh17N13M2T, 08Kh18N10T.
Stainless steel valves are made from: 06KhN28MDT, 20Kh23N18, 10Kh23N18, 08Kh18N10, 03Kh17N14M3, 10Kh17N13M2T, 08Kh18N10T, 12Kh18N10T.
Stainless steel transitions are made from: 10Kh17N13M2T, 20Kh23N18, 10Kh23N18, 03Kh17N14M3, 08Kh18N10T, 12Kh18N10T, 08Kh18N10, 06KhN28MDT.
Stainless steel threads are made from: 10Kh23N18, 06KhN28MDT, 10Kh17N13M2T, 08Kh18N10T, 12Kh18N10T, 08Kh18N10, 03Kh17N14M3.
Stainless steel tees are made from: 10Kh17N13M2T, 20Kh23N18, 10Kh23N18, 03Kh17N14M3, 08Kh18N10T, 12Kh18N10T, 08Kh18N10, 06KhN28MDT.
Stainless steel flanges are made from: 03Kh17N14M3, 20Kh23N18, 10Kh23N18, 06KhN28MDT, 08Kh18N10T, 12Kh18N10T, 08Kh18N10, 10Kh17N13M2T.
The main GOST standard for stainless steel elbows:
GOST 17375-2001 - Design of seamless welded elbows made of low-alloy and carbon steel. This standard specifies: connection dimensions, wall thickness, bend angle, materials of manufacture, bend radius, outside diameter, marking, quality control, operating parameters, and the design of the elbows.
The main GOST standard for stainless steel end caps:
GOST 17379-2001 - Design of welded elliptical end caps made of carbon and low-alloy steel. This standard defines: wall thickness, connection parameters, spherical part radii, geometry, dimensions, design, marking, application area, quality control, manufacturing methods, size range, and end cap design.
The main GOST standard for stainless steel couplings:
GOST 8969-75 - Specifications for stainless steel couplings. The standard establishes acceptance rules, technical requirements, dimensions, design, threads, markings, operating parameters, nominal bores, materials of manufacture, and the scope of application of unions.
The main GOST for stainless steel valves:
GOST 21345-2005 - technical conditions for ball, cylindrical, and cone valves. This standard defines areas of application, markings, reliability indicators, and testing methods. It establishes requirements for strength, surface finish, materials, design, tightness, drive, and seals.
The main GOST for stainless steel reducers:
GOST 17378-2001 - design of eccentric and concentric welded reducers made of low-alloy and carbon steel. This standard establishes geometric parameters, connection diameters, wall thickness, product length, dimensions, reducer types, markings, areas of application, quality control, operating parameters, manufacturing methods, materials of manufacture, and reducer design.
The main GOST standard for stainless steel threads:
GOST 6357-81 - the main standards for the interchangeability of cylindrical pipe threads. This standard defines: interchangeability requirements, thread designations, tolerances, thread pitch and purpose, diameters, main dimensions, markings, quality control, accuracy classes, thread profiles, and thread types.
The main GOST standard for stainless steel tees:
GOST 17376-2001 - the design of seamless welded steel tees. This standard establishes: branch pipe lengths, outside diameters, nominal bores, geometric parameters, main dimensions, and the design of tees.
The main GOST standard for stainless steel flanges:
GOST 33259-2015 - the design, dimensions, and general technical requirements for flanges of valves, fittings, and pipelines. It defines: pressure ranges, dimensions, sealing surfaces, location of mounting holes, connection parameters, types of execution and flange design.
Stainless steel bend weight table
| DN | Outer diameter, mm | Weight of 1 piece, kg |
|---|---|---|
| DN15 | 21.3 | 0.05 |
| DN20 | 26.9 | 0.08 |
| DN25 | 33.7 | 0.12 |
| DN32 | 42.4 | 0.2 |
| DN40 | 48.3 | 0.28 |
| DN50 | 60.3 | 0.45 |
| DN65 | 76.1 | 0.75 |
| DN80 | 88.9 | 1.1 |
| DN100 | 114.3 | 1.8 |
| DN125 | 139.7 | 2.9 |
| DN150 | 168.3 | 4.3 |
| DN200 | 219.1 | 7.5 |
| DN250 | 273 | 12 |
| DN300 | 323.9 | 18.5 |
Stainless Steel Plug Weight Chart
| DN | Outer diameter, mm | Weight of 1 piece, kg |
| DN15 | 21.3 | 0.2 |
| DN20 | 26.9 | 0.3 |
| DN25 | 33.7 | 0.45 |
| DN32 | 42.4 | 0.7 |
| DN40 | 48.3 | 0.95 |
| DN50 | 60.3 | 1.4 |
| DN65 | 76.1 | 2.2 |
| DN80 | 88.9 | 3.1 |
| DN100 | 114.3 | 4.8 |
| DN125 | 139.7 | 7.2 |
| DN150 | 168.3 | 10.5 |
| DN200 | 219.1 | 17.8 |
| DN250 | 273 | 28.5 |
| DN300 | 323.9 | 42 |
Stainless Steel Coupling Weight Chart
| DN | Thread size | Length, mm | Weight of 1 piece, kg |
| DN15 | 1/2" | 110 | 0.1 |
| DN20 | 3/4" | 110 | 0.15 |
| DN25 | 1" | 130 | 0.25 |
| DN32 | 1 1/4" | 150 | 0.4 |
| DN40 | 1 1/2" | 150 | 0.55 |
| DN50 | 2" | 170 | 0.85 |
| DN65 | 2 1/2" | 200 | 1.4 |
| DN80 | 3" | 220 | 2.1 |
| DN100 | 4" | 250 | 3.5 |
Stainless steel faucet weight chart
For ball (coupling) stainless steel valves:
| DN | Thread size | Weight of 1 piece, kg |
| DN8 | 1/4" | 0.18 |
| DN10 | 3/8" | 0.22 |
| DN15 | 1/2" | 0.32 |
| DN20 | 3/4" | 0.48 |
| DN25 | 1" | 0.75 |
| DN32 | 1 1/4" | 1.15 |
| DN40 | 1 1/2" | 1.65 |
| DN50 | 2" | 2.45 |
| DN65 | 2 1/2" | 4.2 |
| DN80 | 3" | 6.1 |
| DN100 | 4" | 9.8 |
For flanged stainless steel valves:
| DN | Pressure | Weight of 1 piece, kg |
| DN15 | PN16 | 2.0 |
| DN20 | PN16 | 2.8 |
| DN25 | PN16 | 3.9 |
| DN32 | PN16 | 5.5 |
| DN40 | PN16 | 7.0 |
| DN50 | PN16 | 9.5 |
| DN65 | PN16 | 14 |
| DN80 | PN16 | 19 |
| DN100 | PN16 | 28 |
| DN150 | PN16 | 52 |
| DN200 | PN16 | 88 |
Stainless Steel Transition Weight Table
For concentric transitions:
| DN larger × smaller | Outer diameter, mm | Weight of 1 piece, kg |
|---|---|---|
| 25×15 | 33.7×21.3 | 0.08 |
| 32×20 | 42.4×26.9 | 0.12 |
| 40×25 | 48.3×33.7 | 0.18 |
| 50×32 | 60.3×42.4 | 0.28 |
| 65×40 | 76.1×48.3 | 0.45 |
| 80×50 | 88.9×60.3 | 0.68 |
| 100×65 | 114.3×76.1 | 1.1 |
| 125×80 | 139.7×88.9 | 1.75 |
| 150×100 | 168.3×114.3 | 2.7 |
| 200×150 | 219.1×168.3 | 5.8 |
| 250×200 | 273×219.1 | 9.5 |
| 300×250 | 323.9×273 | 15.2 |
For eccentric transitions:
| DN larger × smaller | Weight of 1 piece, kg |
| 50×32 | 0.32 |
| 65×40 | 0.5 |
| 80×50 | 0.75 |
| 100×65 | 1.2 |
| 125×80 | 1.9 |
| 150×100 | 2.95 |
| 200×150 | 6,2 |
| 250×200 | 10.1 |
Stainless Steel Thread Weight Chart
| Thread size | Length, mm | Weight of 1 piece, kg |
| 1/4" | 40 | 0.03 |
| 3/8" | 40 | 0.05 |
| 1/2" | 50 | 0.08 |
| 3/4" | 55 | 0.12 |
| 1" | 60 | 0.18 |
| 1 1/4" | 70 | 0.3 |
| 1 1/2" | 80 | 0.42 |
| 2" | 90 | 0.65 |
| 2 1/2" | 100 | 1.1 |
| 3" | 120 | 1.75 |
| 4" | 140 | 2.9 |
Stainless steel equal bore tee weight table
| DN | Outer diameter, mm | Weight of 1 piece, kg |
| DN15 | 21.3 | 0.1 |
| DN20 | 26.9 | 0.16 |
| DN25 | 33.7 | 0.24 |
| DN32 | 42.4 | 0.40 |
| DN40 | 48.3 | 0.58 |
| DN50 | 60.3 | 0.85 |
| DN65 | 76.1 | 1.45 |
| DN80 | 88.9 | 2.1 |
| DN100 | 114.3 | 3.6 |
| DN125 | 139.7 | 5.8 |
| DN150 | 168.3 | 8.7 |
| DN200 | 219.1 | 15.5 |
| DN250 | 273 | 26 |
| DN300 | 323.9 | 40 |
Stainless steel flange weight chart
For stainless steel weld neck flanges PN16:
| DN | Outer diameter, mm | Weight of 1 piece, kg |
| DN15 | 21.3 | 0.8 |
| DN20 | 26.9 | 1.0 |
| DN25 | 33.7 | 1.3 |
| DN32 | 42.4 | 1.8 |
| DN40 | 48.3 | 2.4 |
| DN50 | 60.3 | 3.6 |
| DN65 | 76.1 | 5.5 |
| DN80 | 88.9 | 7.5 |
| DN100 | 114.3 | 10.8 |
| DN125 | 139.7 | 15.5 |
| DN150 | 168.3 | 21.5 |
| DN200 | 219.1 | 35 |
| DN250 | 273 | 55 |
| DN300 | 323.9 | 78 |
For flat flanges PN16:
| DN | Weight of 1 piece, kg |
| DN15 | 0.5 |
| DN20 | 0.7 |
| DN25 | 1.0 |
| DN32 | 1.4 |
| DN40 | 2.0 |
| DN50 | 3.0 |
| DN65 | 4.5 |
| DN80 | 6.0 |
| DN100 | 9.0 |
| DN150 | 18 |
| DN200 | 30 |
| DN250 | 48 |
| DN300 | 68 |