1. What is class 200 pipe used for?
Primarily refers to **Ductile Iron Pipe (DIP)** with a pressure rating of 200 psi. It's commonly used for **water transmission and distribution mains, sewer force mains, and other pressurized applications** where the design pressure requires this specific rating. It's known for its strength and corrosion resistance (often cement-mortar lined).
2. What is sch 30 pipe?
Designates a **"Schedule 30"** pipe wall thickness under the ASME B36.10 standard. It represents a **relatively thin wall** compared to higher schedules like Sch 40 or Sch 80. Sch 30 pipe is typically used for **low-pressure applications, such as some process piping, drainage, venting, or specific structural uses**, where high strength or pressure containment isn't the primary concern. Availability is more common in larger diameters (NPS 10 and above).
3. What is 2729 pipe?
Refers to pipe manufactured to the **Japanese Industrial Standard JIS G 3452**. This standard covers **carbon steel pipes for ordinary piping service (SGP pipes)**. JIS G 3452 pipes (like SCH 40 equivalent) are widely used for **general water supply, plumbing, air, gas, steam (low pressure), and other low to moderate pressure/temperature applications** in Japan and regions influenced by Japanese standards.
4. What is 1738 pipe?
Refers to pipe manufactured to the older **Japanese Industrial Standard JIS G 3454** (superseded by JIS G 3454:2018). This standard covered **carbon steel pipes for pressure service (STPG pipes)**. JIS G 3454 pipes (like SCH 40/STD equivalent) were used for **higher pressure and temperature applications compared to G 3452, such as steam, air, gas, and water lines in power plants, industrial plants, and refineries** within the Japanese standard system.
5. What is B36 pipe material?
"B36" itself (ASME B36.10M / B36.19M) is **not a material specification**. It is the **dimensional standard** covering the outside diameters and wall thicknesses (schedules) for welded and seamless wrought steel pipe. Pipes conforming to B36 dimensions can be made from **various materials**, including **carbon steel (e.g., ASTM A53, A106), alloy steel (e.g., ASTM A335), and stainless steel (e.g., ASTM A312)**. The specific material grade determines the pipe's properties and suitable applications.
