ASTM A795 Seamless Steel Pipe

ASTM A795 steel pipes are primarily designed for use in fire protection systems, including fire sprinkler installations. They are intended to carry water or other fire-extinguishing materials. This article are going to talk about ASTM A795 seamless steel pipe.

Specification of ASTM A795 Seamless Steel Pipe:

Certificate: ISO

Standard: ASTM A795 Grade B,Type S

Length: 6m / 5.8m / 11.8m / 12m, customized

End: Plain (square cut) / beveled to 30° / roll groove as AWWA C606 / NPT thread as ANSI B1.20.1 / BSPT as ISO 7-1

Surface: Red paint / red epoxy resin or polyester / hot dip galvanized / black paint, etc.

Tests of ASTM A795 Seamless Steel Pipe:

· Hydrostatic test: It shall be applied to each pipe ≥ 5s, without leakage through the pipe.

· The min test pressure shall not exceed 2500 psi (17.2 MPa) for pipe ≤ NPS 3", nor 2800 psi (19.3 MPa) for pipe > NPS 3", refer to ASTM A53.

· Nondestructive electric test (NDE) is alternative to hydrostatic test, including ASTM E213 Ultrasonic testing, ASTM E309 Eddy current examination, or ASTM E570 Flux leakage examination.

· Tensile test, bending test and flattening test.

· Permissible variations: tolerance on outer diameter, thickness, length.

· Straightness: The finished pipe shall be reasonably straight.

· Ovality (out of roundness): It is included in OD tolerance. For thin-wall pipe, any one cross-section shall not exceed 1.5% of OD (Refer to ASTM A530).

· Surface / coating test.

· Quantity and weight measurement.

Related Article:

ASTM A795 ERW Steel Pipe