Pipe wall thickness tolerance

Hello,
I need you advise wall thickness tolerance for pipe and tube?

4 Likes

Which standard are you talking to?

API 5L and ASTM A333

P7RLU%603%5DNNQ6CG%24EBZ%5B~DWJ

following which specification?

Min. 87.5% of norminal wall thickness and not exceed 25% of norminal wall thickness.
See in ASME B36.10M 2018 and API 5L, A333 also detail tolerance and mass permittion.

3 Likes

Please give detail API 5L latest edition?

see Table 11 in API 46th Edition

Wall thickness Tolerance [Note a]
t, mm (in) mm (in)
SMLS Pipe [Note b]
<= 4.0 (0.157) +0.6 (0.024)/ -0.5(0.020)
>4.0 (0.157) to <25.0 (0.984) +0.150t / -0.125t
>=25.0 (0.984) +3.7 (0.146) or +0.1t, whichever is the greater / -3.0 (0.120) or -0.1t, whichever is the greater
Welded Pipe [Note c, d]
<=5.0 (0.197) +/-0.5 (0.020)
>5.0 (0.197) to < 15.0 (0.591) +/-0.1t
>=15.0 (0.591) +/- 1.5 (0.060)

Note a, b, c, d see in Table 11.

5 Likes