ASTM,ASTM A106 Gr.B Seamless pipe,ASTM A106 Grade A,ASTM A106 Grade B,ASTM A106 Grade C,carbon steel pipe,Steel pipe
ASTM A106 Gr.B Seamless pipe
ASTM A106 Grade A
ASTM A106 Grade B
ASTM A106 Grade C
carbon steel pipe
ASTM A106 Standard specification covers seamless carbon steel pipe
for high-temperature service (Note 1) in NPS 1/8 to NPS 48 [DN 6 to
DN 1200] (Note 2) inclusive, with nominal (average) wall thickness
as given in ASME B36.10. It shall be permissible to furnish pipe
having other dimensions provided such pipe complies with all other
requirements of this specification.
Pipe ordered under this specification shall be suitable for
bending, flanging, and similar forming operations, and for welding.
When the steel is to be welded, it is presupposed that a welding
procedure suitable to the grade of steel and intended use or
service will be utilized.
Main steel grade:
- ASTM A106 Grade A
- ASTM A106 Grade B
- ASTM A106 Grade C
Note 1: It is suggested, consideration be given to possible
Note 2: The dimensionless designator NPS (nominal pipe size) [DN
(diameter nominal)] has been substituted in this standard for such
traditional terms as ‘nominal diameter’, ‘size’, and ‘nominal
1.2 Supplementary requirements of an optional nature are provided
for seamless pipe intended for use in applications where a superior
grade of pipe is required. These supplementary requirements call
for additional tests to be made and when desired shall be so stated
in the order.
1.3 The values stated in either SI units or inch-pound units are to
be regarded separately as standard. The values stated in each
system may not be exact equivalents. Therefore, each system is to
be used independently of the other.
1.4 The following precautionary caveat pertains only to the test
method portion, Sections 11, 12, and 13 of this specification: This
standard does not purport to address all of the safety concerns, if
any, associated with its use. It is the responsibility of the user
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limitations
prior to use.
NPS 1-1/2inch and under may be either hot finished or cold drawn.
NPS 2inch and larger shall be hot finished unless otherwise
Killed steel, with primary melting process being open-hearth,
basic-oxygen, or electric-furnace, possible combined with separate
degassing or refining.
Steel cast in ingots or strand cast is permissible.
Hot-finished pipe need not be heat treated.
Cold-drawn pipe shall be heat treated after the final cold draw
Chemical Requirements ASTM A106
|Element||Grade A||Grade B||Grade C|
|Carbon,max||0.25 (1)||0.30 (2)||0.35 (2)|
(1) For each reduction of 0.01% below the specified carbon maximum,
an increase of 0.06% manganese above
the specified maximum will be permitted up to a maximum of 1.35%.
(2)Unless otherwise specified by the purchaser, for each reduction
of 0.01% below the specified carbon maximum,
an increase of 0.06% manganese above the specified maximum will be
permitted up to a maximum of 1.65%.
(3) These five elements combined shall not exceed 1%.