Standards: ASME/ASTM: A312, A269, A213, DIN 17456, etc.
Steel Grade: TP 304, 304H, 304L, 316, 316L, 316Ti, 317, 321, 321H, 347, 347H, 309S, 310S, etc.
Outside diameter from 6mm to 530mm.
Wall thickness from 0.5mm to 38.1mm.
Marking: JW, material grade, standard, specification, heat no.
Value added service:
Third party inspection
Bright annealed, polished outside and inside surface
Item | ASTM A213 | ASTM A312 | ASTM A269 | |||
Outside diameter tolerance(mm) | O.D. | tolerance | O.D. | tolerance | O.D. | tolerance |
<25.4 | ±0.10 | 10.3-48.3 | +0.4/-0.8 | 12.7 < | +0.13/-0.13 | |
25.4-≤38.1 | ±0.15 | >48.3-114.3 | +0.8/-0.8 | 12.7-38.1 | +0.13/-0.13 | |
>38.1-<50.8 | ±0.20 | >114.3-219.1 | +1.6/-0.8 | 38.1-88.9 | +0.25/-0.25 | |
50.8-<63.5 | ±0.25 | >219.1-457.2 | +2.4/-0.8 | 88.9-139.7 | +0.38/-0.38 | |
63.5-<76.2 | ±0.30 | >457.2-660.4 | +3.2/-0.8 | 139.7-203.2 | +0.76/-0.76 | |
76.2-≤101.6 | ±0.38 | >660.4-864 | +4/-0.8 | |||
>101.6-≤190.5 | ±0.38/-0.64 | >864-1219.2 | +4.8/-0.8 | |||
>190.5-≤228.6 | ±0.38/-1.14 | |||||
Thickness tolerance(mm) | O.D. | tolerance | ±12.5%t | O.D. | tolerance | |
≤38.1 | +20%t/0 | ≤38.1 | ±15%t | |||
>38.1 | +22%t/0 | >38.1 | ±10%t |