Pipe Matrial ASTM A 106-99
carbon steel According to ASTM Code

Seamless carbon steel pipe for high temperature service.

COMPOSITION CHIMIQUE EN %

Grades CMnSPSiCrCuMoNiV
 maxi (amaximaximinimaxi (b)maxi (b)maxi (b)maxi (b)maxi (b)
                   
A 0.250.27 to 0.90.0350.0350.100.400.400.150.400.08
B 0.300.29 to 1.00.0350.0350.100.400.400.150.400.08
C 0.350.29 to 1.060.0350.0350.100.400.400.150.400.08

(a) 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 %
(b) These five elements combined shall not exceed 1 %.

TENSILE REQUIREMENTS

Grades Minimum tensile strengthMinimum yield strengthMinimum elongation(1)
 LongitudinalTransverse
 ksiMPaksiMPain 2”, per cent
                   
A 48.033030.02053525.0
B 60.041535.02403016.5
C 70.048540.02753016.5

(1) Basic minimum elongation transverse strip tests, and for all small sizes tested in full section. For longitudinal strip tests minimum elongation in 2” shall be : e = 625.000 A 0.2 /U 0.9 (see ASTM).

TOLERANCES 

Outside diameter : as follows

Nominal pipe size NPS Outside diameter mmVariations in outside diameter
 overunder
 mminchesmminches
                   
1/8 to 1 1/2 10.3 to 48.30.401/64 (0.015)0.401/64 (0.015)
2 to 4 60.3 to 114.30.791/32 (0.031)0.791/32 (0.031)
5 to 8 141.3 to 219.11.591/16 (0.062)0.791/32 (0.031)
10 to 18 273.0 to 457.22.383/32 (0.093)0.791/32 (0.031)
20 to 26 508.0 to 660.03.181/8 (0.125)0.791/32 (0.031)
28 to 34 711.0 to 864.03.975/32 (0.156)0.791/32 (0.031)
36 to 48 914.0 to 1219.04.763/16 (0.187)0.791/32 (0.031)

Note : For pipes NPS 10” (273 mm) and over, possibility to obtain if specially required :
outside diameter ± 1 % or inside diameter ± 1 %


 

On thickness – 12.5 %
On weightPer unit length+ 10 %
– 3.5 %
Hydrostatic test pressure (see ASTM A 530 / A 530 M-99)

Given by the formula

\(P ={2 S T\over D}\)
where P : Test pressure in PSI T : Wall thickness in inches
S : Pipe wall stress in PSI D : Outside diameter in inches

 
LengthsIf definite lengths are not required, pipe may be ordered in single random 16 to 22 ft (4.8 to 6.7 m) with 5 % 12 to 16 ft (3.7 to 4.8 m), or in double r lengths with a minimum average of 35 ft (10.7 m) with 5 % 16 to 22 ft (4.8 m to 6.7 m).lengths o andom

DIMENSIONS

see ASME B16.10 Data

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