OEM HR CR Seamless Boiler Steel Tube Pipes ASTM a1020 20#
Discover the high-quality OEM HR CR Seamless Boiler Steel Tube Pipes ASTM A1020 20#. These tubes are cold extruded, carburized hardened steel with excellent toughness, plasticity, and weldability. Ideal for boiler applications, they meet ASTM standards with yield strength ≥245MPa and tensile strength ≥402MPa.