Boiler seamless steel pipes ASTM A106 Gr.B

This boiler seamless steel pipes with different sizes, can meet your different demands.
The steel shall be killed steel, with the primary melting

process being open-hearth, basic-oxygen, or electric-furnace,

possibly combined with separate degassing or refining. If

secondary melting, using electroslag remelting or vacuum-arc

remelting is subsequently employed, the heat shall be defined

as all of the ingots remelted from a single primary heat.

Steel cast in ingots or strand cast is permissible. When

steels of different grades are sequentially strand cast, identification

of the resultant transition material is required. The

producer shall remove the transition material by any established

procedure that positively separates the grades.

For pipe NPS 11⁄2 [DN 40] and under, it shall be

permissible to furnish hot finished or cold drawn.

Unless otherwise specified, pipe NPS 2 [DN 50] and

over shall be furnished hot finished. When agreed upon

between the manufacturer and the purchaser, it is permissible

to furnish cold-drawn pipe.

For the heat treatment, the Hot-finished pipe need not be heat treated. Cold-drawn pipe shall be heat treated after the final cold draw pass at a temperature of 1200 °F (650 °C) or higher. For the general requirements
,
material furnished to this specification shall conform to

the applicable requirements of the current edition of Specification A530/A530M unless otherwise provided herein.