ASTM B167 UNS N06600

ASTM B423 UNS N08810

-

+

-

+

-

+

0.79
1.2
1.6

64 to 114
114 to 165
165 to 235

% of Thickness of Specified Minimal wall

% of Thickness of Specified Nominal Wall

Outside Diameter mm.

Nominal Outside Diameter

0.79
1.2
1.6

INC 600 and INC 800

Permissible Variations For Outside Diameter and Wall Thickness of Seamless Hot- Worked Pipe and Tube, ASTM B 167 and ASTM B 423
Permissible Variations

0
0
0

28.5
28.5
28.5

12.5
12.5
12.5

16
16
16

-

+

+

0.13
0.19
0.25
0.38
0.51
0.64

10 to 16
16 to 38
38 to 76
76 to 114
114 to 152
152 to 168.3

% of Thickness of Specified Minimal wall

% of Thickness of Specified Nominal Wall

Outside Diameter mm.

Nominal Outside Diameter

0.13
0.19
0.25
0.38
0.51
0.64

INC 600 and INC 800

Permissible Variations For Outside Diameter and Wall Thickness of Seamless Cold- Worked Pipe and Tube
Permissible Variations

0
0
0
0
0
0

30
22
22
22
28
28

15
10
10
10
12.5
12.5

15
10
10
10
12.5
12.5