# What is the OD of 1 1 4 black pipe?

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SCH 40 Bare & Black Standard Steel Pipe

Item # | Size | Outside Diameter |
---|---|---|

SCH 40 Pipe-1 | 1 in | 1.315 in |

SCH 40 Pipe-1 1/4 | 1 1/4 in | 1.660 in |

SCH 40 Pipe-1 1/2 | 1 1/2 in | 1.900 in |

SCH 40 Pipe-2 | 2 in | 2.375 in |

Also question is, what is the OD of 1 1 4 pipe?

OUTSIDE DIAMETER

**Measure the Outside Diameter (OD) of your pipe or pipe fitting:**

- Wrap a string around the pipe.
- Mark the point where the string touches together.
- Use a ruler or measuring tape to find the length between the tip of the string and the mark you made (circumference)
- Divide the circumference by 3.14159.

Likewise, what is the OD of 1 black pipe?

SCH 40 Bare & Black Standard Steel Pipe

Item # | Size | Outside Diameter |
---|---|---|

SCH 40 Pipe-1 | 1 in | 1.315 in |

SCH 40 Pipe-1 1/4 | 1 1/4 in | 1.660 in |

SCH 40 Pipe-1 1/2 | 1 1/2 in | 1.900 in |

SCH 40 Pipe-2 | 2 in | 2.375 in |

Steel Pipe Specifications Schedule 40

Nominal Size (IPS) | Diameter External (Inches) | Wall Thickness (Inches) |
---|---|---|

Diameter Internal(Inches) : .824 Wall Thickness(Inches) : .113 Weight Per Foot Plain Ends(Pounds) : 1.130 Internal Area(Sq. In.) : .533 GPM at 10 ft/sec(Velocity) : 16.6 | ||

1" | 1.315 | .133 |

1-1/4" | 1.660 | .140 |

1-1/2" | 1.900 | .145 |