Carbon Steel ASTM A105 Tee, DN50 X DN50, PN315, FNPT

Oct 11, 2025

ASTM A105 Carbon steel tees are critical components in piping systems for flow diversion or confluence, with their core advantages being high mechanical strength (tensile strength ≥415 MPa, per ASTM A234 standard) and cost-effectiveness. They can be categorized by manufacturing process:

‌Seamless Tees‌: Produced through hot pressing, suitable for high-pressure applications (e.g., oil pipelines, with pressure resistance ≥10 MPa);

‌Welded Tees‌: Fabricated by rolling and welding steel plates, primarily used for low-pressure fluid conveyance (≤2.5 MPa).

Common nominal diameter ranges from DN15 to DN1200, with wall thickness adjusted according to Sch40, Sch80, etc. For example, a DN100 Sch40 tee has a wall thickness of 6.55 mm (per ASME B16.9).

Specification

Type: Tee.
Material: ASTM A105.
Size: DN50 X DN50.
Pressure: PN315.
End: FNPT.

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