ASTM A53 ERW steel pipe (also referred to as ASME SA53 pipe) is a type of normal carbon steel pipe intended for conveying gas, water or other liquid in low and medium pressure ambient, such as water mains system, sewerage system, fire protection service, etc.
Certificate: UL Listed
Standard: ASTM A53, Type E, Grade B
Outer diameter: NPS 1/2″ to NPS 12″
Wall thickness: SCH40
Application: fire main pipe, fire standpipe, fire sprinkler branch pipe
Working pressure: 175PSI (1.21MPa)/ 300PSI (2.07MPa)
| Classification | Nominal Size | Outside Diameter | Wall Thickness | Mass of Black Tube | ||
| (mm) | Min.(mm) | Max.(mm) | (mm) | Plain End (kg/m) | Screw Socket (kg/m) | |
| MEDIUM | 15 | 21.1 | 21.7 | 2.6 | 1.21 | 1.22 |
| 20 | 26.6 | 27.2 | 2.6 | 1.56 | 1.57 | |
| 25 | 33.4 | 34.2 | 3.2 | 2.41 | 2.43 | |
| 32 | 42.1 | 42.9 | 3.2 | 3.1 | 3.13 | |
| 40 | 48 | 48.8 | 3.2 | 3.57 | 3.61 | |
| 50 | 59.8 | 60.8 | 3.6 | 5.03 | 5.1 | |
| 65 | 75.4 | 76.6 | 3.6 | 6.43 | 6.55 | |
| 80 | 88.1 | 89.5 | 4.0 | 8.37 | 8.54 | |
| 100 | 113.3 | 114.9 | 4.5 | 12.2 | 12.5 | |
| 125 | 138.7 | 140.6 | 5.0 | 16.6 | 17.1 | |
| 150 | 164.1 | 166.1 | 5.0 | 19.7 | 20.3 | |
| HEAVY | 15 | 21.1 | 21.7 | 3.2 | 1.44 | 1.45 |
| 20 | 26.6 | 27.2 | 3.2 | 1.87 | 1.88 | |
| 25 | 33.4 | 34.2 | 4.0 | 2.94 | 2.96 | |
| 32 | 42.1 | 42.9 | 4.0 | 3.8 | 3.83 | |
| 40 | 48 | 48.8 | 4.0 | 4.38 | 4.42 | |
| 50 | 59.8 | 60.8 | 4.5 | 6.19 | 6.26 | |
| 65 | 75.4 | 76.6 | 4.5 | 7.93 | 8.05 | |
| 80 | 88.1 | 89.8 | 5.0 | 10.3 | 10.5 | |
| 100 | 113.3 | 114.9 | 5.4 | 14.5 | 14.8 | |
| 125 | 138.7 | 140.6 | 5.4 | 17.9 | 18.4 | |
| 150 | 164.1 | 166.1 | 5.4 | 21.3 | 21.9 | |
