1. What is S195T?
S195T is a non-alloy steel grade specified in the EN 10255 standard. It is a low-carbon welded steel pipe material designed for low-pressure fluid transportation (such as water and gas). The "T" in its name indicates threadability.
2. What are the chemical composition and mechanical properties of S195T?
Chemical composition: Low carbon (C ≤ 0.20%), low sulfur and phosphorus (S/P ≤ 0.045%), specifically meeting the EN 10255 requirements for non-alloy steel.
Mechanical properties: Minimum tensile strength of approximately 330 MPa, yield strength of approximately 195 MPa ("195" corresponds to the yield strength value).
3. Typical uses of S195T steel pipe?
It is primarily used in low-pressure piping systems, such as:
Cold/hot water transportation within buildings;
Low-pressure gas distribution networks;
Non-pressure piping in HVAC systems. 4. What is the difference between S195T steel pipe and other grades (such as S235JRH)?
Strength: S235JRH has a higher yield strength (235 MPa) and is suitable for higher pressure applications.
Processability: S195T focuses more on threadability, while S235JRH may require welding or flange connections.
Cost: Due to its lower strength, S195T is generally more economical.
5. What are the production and inspection standards for S195T steel pipe?
Production standard: EN 10255 (welding process + dimensional tolerances).
Inspection requirements: Hydrostatic testing, eddy current testing, or ultrasonic testing are required to ensure the absence of defects; the surface must be galvanized (if for corrosion protection).
