BI Pipe S20

• General Info

  BI Pipe S20 refers to Black Iron Pipe Schedule 20, a type of pipe made from carbon steel or mild steel commonly used in low-pressure applications for transporting water, gas, or other fluids. "Black iron pipe" comes from its dark, uncoated finish, distinguishing it from galvanized iron pipe, which features a zinc coating to resist corrosion. The Schedule 20 (S20) designation signifies a relatively thin wall thickness, making it ideal for non-pressurized or low-pressure uses.

• Common Sizes:

  Wall Thickness
  Schedule 20 pipes have a thinner wall thickness compared to higher schedule pipes such as Schedule 40 or Schedule 80, which makes them lightweight and cost-effective for low-pressure applications. Typical wall thicknesses for various nominal pipe sizes (NPS) are as follows:
  1-inch BI Pipe S20: Wall thickness of approximately 0.095 inches (2.41 mm)
  2-inch BI Pipe S20: Wall thickness of approximately 0.109 inches (2.77 mm)
  3-inch BI Pipe S20: Wall thickness of approximately 0.154 inches (3.91 mm)
  4-inch BI Pipe S20: Wall thickness of approximately 0.237 inches (6.02 mm)