Grade compositions, pipe schedules, flange dimensions and weight formulas — the reference data our customers ask for most.
ASTM A312 TP 304, 304L, 304H, 316, 316L, 316H, 316Ti, 321, 309, 310, 347, 409, 410, 420, 430 and 904L.
ASTM A283, A516 / ASME SA283, SA516, 517 Gr. 60 / 70, IS 2062, IS 2002, A106 Gr. B, API-5L and A333 Gr. 6.
Duplex, Super Duplex, Alloy Steel, Nickel Alloy, Titanium Alloy, Aluminium Alloy and Cupro-Nickel Alloy.
Chemical composition per cent for austenitic, ferritic and duplex stainless steel grades.
| Grade | C Max | Mn Max | P Max | S Max | Si Max | Cr | Ni | Mo | Type |
|---|---|---|---|---|---|---|---|---|---|
| 202 | 0.15 | 7.5/10 | 0.06 | 0.03 | 1 | 17.0/19.0 | 4.0/6.0 | – | Austenitic |
| 304 | 0.08 | 2.0 | 0.045 | 0.030 | 1.0 | 18.0/20.0 | 8.0/10.0 | – | Austenitic |
| 304L | 0.030 | 2.0 | 0.045 | 0.030 | 1.0 | 18.0/20.0 | 8.0/12.0 | – | Austenitic |
| 309 | 0.20 | 2.0 max | 0.045 | 0.030 | 1.0 | 22.0/24.0 | 12.5/15.0 | – | Austenitic |
| 310 | 0.25 | 2.0 | 0.045 | 0.030 | 1.50 | 24.0/26.0 | 19.0/22.0 | – | Austenitic |
| 316 | 0.08 | 2.0 | 0.045 | 0.030 | 1.0 | 16.0/18.0 | 10.0/14.0 | 2.0/3.0 | Austenitic |
| 316L | 0.030 | 2.0 | 0.045 | 0.030 | 1.0 | 16.0/18.0 | 10.0/14.0 | 2.0/3.0 | Austenitic |
| 317L | 0.030 | 2.0 | 0.045 | 0.030 | 1.0 | 18.0/20.0 | 11.0/15.0 | 3.0/4.0 | Austenitic |
| 321 | 0.08 | 2.0 | 0.045 | 0.030 | 1.0 | 17.0/19.0 | 9.0/12.0 | – | Austenitic |
| 347 | 0.08 | 2.0 | 0.045 | 0.030 | 1.0 | 17.0/19.0 | 9.0/12.0 | – | Austenitic |
| 904L | 0.02 | 2.0 | 0.045 | 0.035 | 1 | 19.0/23.0 | 23.0/28.0 | 4.0/5.0 | Austenitic |
| 410 | 0.15 | 1.00 | 0.04 | 0.03 | 1.0 | 11.50/13.5 | 0.60 | – | Ferritic |
| 420 | 0.15 min | 1.0 | 0.04 | 0.03 | 1.0 | 12.0/14.0 | 0.60 | – | Ferritic |
| 430 | 0.12 | 1.0 | 0.04 | 0.03 | 1.0 | 16.0/18.0 | 0.60 | – | Ferritic |
| 2205 | 0.03 | 2 | 0.03 | 0.02 | 1.0 | 21.0/23.0 | 4.5/6.5 | 2.5/3.5 | Duplex |
| 2506 | 0.08 | 1.0 | 0.04 | 0.03 | 0.75 | 26.0/28.0 | 4/5 | 1.3/2 | Duplex |
Stainless steel is essentially a low carbon steel containing 10% or more chromium, which gives it its unique stainless, corrosion-resisting properties.
Nominal thickness and weight per metre for standard pipe schedules.
| Nominal Size | O.D. (mm) | Sch 40 Thk (mm) | Sch 40 kg/m | Sch 80 Thk (mm) | Sch 80 kg/m |
|---|---|---|---|---|---|
| 1/2" | 21.3 | 2.77 | 1.27 | 3.73 | 1.62 |
| 3/4" | 26.7 | 2.87 | 1.69 | 3.91 | 2.20 |
| 1" | 33.4 | 3.38 | 2.50 | 4.55 | 3.24 |
| 1.1/4" | 42.2 | 3.56 | 3.39 | 4.85 | 4.47 |
| 1.1/2" | 48.3 | 3.68 | 4.05 | 5.08 | 5.41 |
| 2" | 60.3 | 3.91 | 5.44 | 5.54 | 7.48 |
| 2.1/2" | 73.0 | 5.16 | 8.63 | 7.01 | 11.41 |
| 3" | 88.9 | 5.49 | 11.29 | 7.62 | 15.27 |
| 4" | 114.3 | 6.02 | 16.07 | 8.56 | 22.32 |
| 5" | 141.3 | 6.55 | 21.77 | 9.53 | 30.94 |
| 6" | 168.3 | 7.11 | 28.26 | 10.97 | 42.56 |
| 8" | 219.1 | 8.18 | 42.55 | 12.70 | 64.64 |
| 10" | 273.0 | 9.27 | 60.29 | 12.70 | 81.52 |
| 12" | 323.9 | 9.53 | 73.78 | 12.70 | 97.43 |
C.S. / A.S. / S.S. pipe and tube schedule dimensions, wall thickness and weight per metre. Other schedules (5S, 10S, 20, 60, 100, 120, 160, XS, XXS) available on request.
Class 150 dimensions for slip-on, weld-neck and blind flanges.
| Nominal Pipe Size | Flange Dia (O) | Bolt Circle (A) | No. of Holes | Bolt Hole Dia (D) | Flange Thk (C) |
|---|---|---|---|---|---|
| 15 mm (1/2") | 88.9 | 60.3 | 4 | 15.9 | 11.1 |
| 20 mm (3/4") | 98.4 | 69.8 | 4 | 15.9 | 12.7 |
| 25 mm (1") | 107.9 | 79.4 | 4 | 15.9 | 14.3 |
| 32 mm (1.1/4") | 117.5 | 88.9 | 4 | 15.9 | 15.9 |
| 40 mm (1.1/2") | 127.0 | 98.4 | 4 | 15.9 | 17.5 |
| 50 mm (2") | 152.4 | 120.6 | 4 | 19.0 | 19.0 |
| 65 mm (2.1/2") | 177.8 | 139.7 | 4 | 19.0 | 22.2 |
| 80 mm (3") | 190.5 | 152.4 | 4 | 19.0 | 23.8 |
| 100 mm (4") | 228.6 | 190.5 | 8 | 19.0 | 23.8 |
| 125 mm (5") | 254.0 | 215.9 | 8 | 22.2 | 23.8 |
| 150 mm (6") | 279.4 | 241.3 | 8 | 22.2 | 25.4 |
| 200 mm (8") | 342.9 | 298.4 | 8 | 22.2 | 28.6 |
| 250 mm (10") | 406.4 | 361.9 | 12 | 25.4 | 30.2 |
| 300 mm (12") | 482.6 | 431.8 | 12 | 25.4 | 31.7 |
Dimensions of Class 150 forged flanges as per ANSI B 16.5, all in millimetres. Class 300 and Class 600 dimension charts available on request.
Use these standard formulas to calculate material weight — or try our automatic calculator.
| Pipes & Tubes | (O.D. − W.T.) × W.T. × 0.02466 = kg/metre |
| Round Bar | Dia × Dia × 0.00623 = kg/metre |
| Square Bar | Dia × Dia × 0.00787 = kg/metre |
| Hexagonal Rod | Dia × Dia × 0.00680 = kg/metre |
| Flat Bar | Width × Thk × 0.00798 = kg/metre |
| Sheet | Length × Width × Thk × 8 = kg/sheet |
| Circle & Blank | Dia × Dia × Thk ÷ 160 = grams/pc |
| Brass / Copper Pipe | (Length − W.T.) × W.T. × 0.0260 = kg/metre |
| Carbon Steel Sheet | Length × Width × Thk × 7.85 = kg/sheet |
| Lead Pipe | (O.D. − W.T.) × W.T. × 0.0345 = kg/metre |
| Aluminium Pipe | (O.D. − W.T.) × W.T. × 0.0082 = kg/metre |
| Lead Sheet | Length × Width × Thk × 11.2 = kg/sheet |
| Aluminium Sheet | Length × Width × Thk × 2.69 = kg/sheet |
| Kg/mm² × 9.81 | = N/mm² = MPa |
| Psi × 0.0007 | = Kg/mm² |
| KSi × 1000 | = PSi |
| Kg/mm² × 1.422 | = KSi |
Your enquiry is ready and already written out. Just pick how you'd like to send it.
Nothing is sent automatically — you always press send yourself.
We usually reply within a few working hours.