ASTM A106 / API 5L
Specification for Seamless Carbon Steel Black Iron and Galvanized iron Pipe for High Temperature Service.
SEAMLESS BI AND GI GRADE B-Sch. 40
Zinc Coating ≥ 1.8 oz/ft2 (0.55 kg/m2)
Composition and Properties
As prescribed by ASTM Standards, the chemical and tensile requirements for Seamless Black Iron and Galvanized Iron Pipe are as follows.
Mechanical Properties Gr. B
Yield Point : ≥240MPa (35 000 psi)
Tensile Point : ≥415 MPa (60 000 psi)
Elongation : 17%-30%
Weight: +10%, -3.5%
40mm and Below : ∓0.40mm
50mm and Above : ∓1%
Wall Thickness : ∓12.50%
BENEFITS OF RNW PACIFIC ERW BI PIPES
Increased Pressure Ratings
Seamless pipe maintains a round cross-sectional area, which is important during installation and the addition of pipe fittings.
Fewest failure points. Because of this, pressure calculations are easier to perform because the weld quality is taken out of the equation.
SEAMLESS BI AND GI SPECIFICATION SCH.40