Grade | Composition, % | |||||||
C | Mn | P | S | Si | Ni | Cr | Mo | |
max | max | max | max | |||||
Austenitic | ||||||||
201 | 0.150 | 8.0-12.0 | 0.06 | 0.030 | 1.00 | 1.0-2.5 | 13.0-15.0 | |
304 | 0.080 | 2.0 max | 0.045 | 0.030 | 1.00 | 8.0-11.0 | 18.0-20.0 | |
304L | 0.035 | 2.0 max | 0.045 | 0.030 | 1.00 | 8.0-13.0 | 18.0-20.0 | |
316L | 0.035 | 2.0 max | 0.045 | 0.030 | 1.00 | 10.0-15.0 | 16.0-18.0 | 2.0-3.0 |
321 | 0.080 | 2.0 max | 0.040 | 0.030 | 1.00 | 9.0-13.0 | 17.0-20.0 | |
Ferritic | ||||||||
409L | 0.030 | 1.0 max | 0.040 | 0.020 | 1.00 | 0.5 max | 10.5-11.7 | |
430 | 0.120 | 1.00 | 0.040 | 0.030 | 1.00 | 0.5 max | 16.0-18.0 | |
439 | 0.030 | 1.00 | 0.040 | 0.030 | 1.00 | 0.5 max | 17.0-19.0 | |
Austenitic-Ferritic | ||||||||
2205 | 0.030 | 2.0 max | 0.030 | 0.020 | 1.00 | 4.5-6.5 | 22.0-23.0 | 3.0-3.5 |
2507 | 0.030 | 1.2 max | 0.035 | 0.020 | 0.80 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 |
Grade | Tensile Requirements | Hardness Requirements | |||||
Tensile Strength, min | Yield Strength, min | Elongation in 2 in. or (50mm), min | Brinell, max | Rockwell, max | |||
ksi | Mpa | ksi | Mpa | % | |||
304L & 316L | 70 | 483 | 25 | 172 | 35 | 192 | 90 |
All other austenitic | 75 | 517 | 30 | 207 | 35 | 192 | 90 |
409L | 55 | 379 | 30 | 207 | 20 | 190 | 90 |
430 | 60 | 414 | 35 | 241 | 20 | 190 | 90 |
All other ferritic | 60 | 414 | 35 | 241 | 20 | 190 | 90 |
ASTM A554 Wall Thickness/Outside Dimention Tolerances | ||
Wall Thickness Tolerances | ||
±10% of specified wall thickness | ||
Round Tubing Outside Dimention Tolerances | ||
OD Size | Wall Thickness | OD,± |
mm | mm | mm |
Under 12.7 | 0.51 - 1.24 | 0.10 |
12.7 - 25.4 | 0.51 - 1.65 | 0.13 |
12.7 - 25.4 | Over 1.65 - 3.40 | 0.25 |
Over 25.4 - 38.1,incl | 0.64 - 1.65 | 0.20 |
Over 25.4 - 38.1,incl | Over 1.65 - 3.40 | 0.25 |
Over 38.1 - 50.8,incl | 0.64 - 1.24 | 0.25 |
Over 38.1 - 50.8,incl | Over 1.24 - 2.11 | 0.28 |
Over 38.1 - 50.8,incl | Over 2.11 - 3.78 | 0.30 |
Over 50.8 - 63.5,incl | 0.81 - 1.65 | 0.30 |
Over 50.8 - 63.5,incl | Over 1.65 - 2.77 | 0.33 |
Over 50.8 - 63.5,incl | Over 2.77 - 4.19 | 0.36 |
Over 63.5 - 88.9,incl | 0.81 - 4.19 | 0.36 |
Over 63.5 - 88.9,incl | Over 4.19 | 0.51 |
Over 88.9 - 127.0,incl | 0.89 - 4.19 | 0.51 |
Over 88.9 - 127.0,incl | Over 4.19 | 0.64 |
Over 127.0 - 190.5,incl | 1.24 - 6.35 | 0.64 |
Over 127.0 - 190.5,incl | Over 6.35 | 0.76 |
Over 190.5 - 406.4,incl | all | 0.00125 in./in.or mm/mm of cicumference |
Square & Rectangular Outside Dimention Tolerances | ||
Largest Specified OD Across Flats | Wall Thickness | Across fiats, Convexity or Concavity,± |
mm | mm | mm |
To 31.8,incl | 0.38 | |
Over 31.8 - 63.5,incl | 0.51 | |
Over 63.5 - 139.7,incl | 0.76 | |
Over 139.7 - 203.2,incl | 1.52 | |
Square & Rectangular Maximum Radii of Corners Tolerances | ||
Wall Thickness | Radii of Corners, max | |
mm | mm | |
Over 0.51 - 1.24,incl | 2.4 | |
Over 1.24 - 1.65,incl | 3.2 | |
Over 1.65 - 2.11,incl | 3.6 | |
Over 2.11 - 2.42,incl | 4.8 | |
Over 2.42 - 2.77,incl | 5.2 | |
Over 2.77 - 3.40,incl | 5.6 | |
Over 3.40 - 3.96,incl | 6.4 | |
Over 3.96 - 5.08,incl | 9.5 | |
Over 5.08 - 6.35,incl | 12.7 | |
Over 6.35 - 9.53,incl | 19.1 |
OD(mm) / WT(mm) | 0.60 | 0.70 | 0.80 | 0.90 | 1.00 | 1.20 | 1.50 | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 |
6 | √ | √ | √ | √ | √ | ||||||||
7 | √ | √ | √ | √ | √ | ||||||||
8 | √ | √ | √ | √ | √ | ||||||||
9 | √ | √ | √ | √ | √ | √ | |||||||
9.5 | √ | √ | √ | √ | √ | √ | |||||||
10 | √ | √ | √ | √ | √ | √ | |||||||
12(12.7) | √ | √ | √ | √ | √ | √ | √ | √ | |||||
13 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
14 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
15 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
16(15.9) | √ | √ | √ | √ | √ | √ | √ | √ | |||||
18 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
19 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
20 | √ | √ | √ | √ | √ | ||||||||
21.3 | √ | √ | √ | √ | √ | √ | |||||||
22.22 | √ | √ | √ | √ | √ | √ | |||||||
23 | √ | √ | √ | √ | √ | √ | |||||||
25(25.4) | √ | √ | √ | √ | √ | √ | √ | ||||||
26.9 | √ | √ | √ | √ | √ | √ | √ | ||||||
28.6 | √ | √ | √ | √ | √ | √ | √ | ||||||
30 | √ | √ | √ | √ | √ | √ | |||||||
32(31.8) | √ | √ | √ | √ | √ | √ | |||||||
33.7 | √ | √ | √ | √ | √ | √ | |||||||
35 | √ | √ | √ | √ | √ | √ | |||||||
38.1 | √ | √ | √ | √ | √ | √ | |||||||
40 | √ | √ | √ | √ | √ | √ | |||||||
41.3 | √ | √ | √ | √ | √ | √ | |||||||
42.4 | √ | √ | √ | √ | √ | √ | |||||||
44.5 | √ | √ | √ | √ | √ | √ |
OD(mm) / WT(mm) | 0.60 | 0.70 | 0.80 | 0.90 | 1.00 | 1.20 | 1.50 | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 |
45 | √ | √ | √ | √ | √ | √ | |||||||
48.3 | √ | √ | √ | √ | √ | √ | |||||||
50.8 | √ | √ | √ | √ | √ | √ | √ | ||||||
52 | √ | √ | √ | √ | √ | √ | √ | ||||||
53 | √ | √ | √ | √ | √ | √ | √ | ||||||
54 | √ | √ | √ | √ | √ | √ | √ | ||||||
57 | √ | √ | √ | √ | √ | √ | √ | ||||||
60.3 | √ | √ | √ | √ | √ | √ | √ | ||||||
63.5 | √ | √ | √ | √ | √ | √ | √ | ||||||
65 | √ | √ | √ | √ | √ | √ | √ | ||||||
70 | √ | √ | √ | √ | √ | √ | √ | ||||||
72 | √ | √ | √ | √ | √ | √ | √ | ||||||
73 | √ | √ | √ | √ | √ | √ | √ | ||||||
76.2 | √ | √ | √ | √ | √ | √ | √ | ||||||
80 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
84 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
85 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
88.9 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
100 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
101.6 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
108 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
114.3 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
127 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
129 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
133 | √ | √ | √ | √ | √ | √ | √ | √ | |||||
139.7 | √ | √ | √ | √ | √ | √ | |||||||
152.4 | √ | √ | √ | √ | √ | √ | |||||||
154 | √ | √ | √ | √ | √ | √ | |||||||
159 | √ | √ | √ | √ | √ | √ |
OD(mm) / WT(mm) | 0.60 | 0.70 | 0.80 | 0.90 | 1.00 | 1.20 | 1.50 | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 |
168.3 | √ | √ | √ | √ | √ | √ | |||||||
180 | √ | √ | √ | √ | √ | √ | |||||||
203.2 | √ | √ | √ | √ | √ | √ | |||||||
204 | √ | √ | √ | √ | √ | √ | |||||||
219 | √ | √ | √ | √ | √ | √ | |||||||
273 | √ | √ | √ | √ | √ | √ | |||||||
323.5 | √ | √ | √ | √ | √ | √ | |||||||
325 | √ | √ | √ | √ | √ | √ |
OD(mm) / WT(mm) | 0.60 | 0.70 | 0.80 | 0.90 | 1.00 | 1.20 | 1.50 | 2.00 | 2.50 | 3.00 | 4.00 | 5.00 | 6.00 |
10x10 | √ | √ | √ | √ | √ | √ | √ | ||||||
12x12(12.7x12.7) | √ | √ | √ | √ | √ | √ | √ | ||||||
15x15 | √ | √ | √ | √ | √ | √ | √ | ||||||
16x16(15.9x15.9) | √ | √ | √ | √ | √ | √ | √ | ||||||
19x19(19.05x19.05) | √ | √ | √ | √ | √ | √ | v | √ | |||||
20x10 | √ | √ | √ | √ | √ | ||||||||
20x20 | √ | √ | √ | √ | √ | ||||||||
23x11 | √ | √ | √ | √ | √ | ||||||||
25x13(25.4x12.7) | √ | √ | √ | √ | √ | ||||||||
25x25(25.4x25.4) | √ |