Standards & Grades
ASTM Standard: Condensed ASTM Specification for Stainless Steel Pipes & Tubes.
| Specification | Allowable Outside Diameter Variations in mm | Allowable Wall Thickness Variations | Exact Length Tolerances in mm | Testing | ||||
| Nominal Diameter | Over | Under | Over % | Under % | Over % |
Under % | ||
| ASTM A - 213 Seamless Boiler Superheater and Heat Exchanger Tubes |
Under 25.4 25.4-38.1 Incl. 38.1-50.8 excel. 50.8-63.5 excel. 63.5-76.2 excel. 76.2-101.6 Incl. |
0.10 0.15 0.20 0.25 0.30 0.38 |
0.10 0.15 0.20 0.25 0.30 0.38 |
+20 +20 +22 +22 +22 +22 |
-0 -0 -0 -0 -0 -0 |
3.17 3.17 3.17 3.76 4.76 4.76 |
0 0 0 0 0 0 |
Tension Test Flattening Test Flare Test Hardness Test 100% Hydrostatic Test Refer to ASTM A - 450 |
| ASTM A - 249 Welded Boiler Superheater, Heat Exchanger and Condenser Tubes |
Under 25.4 25.4-38.1 Incl. 38.1-50.8 excel. 50.8-63.5 excel. 63.5-76.2 excel. 76.2-101.6 Incl. |
0.10 0.15 0.20 0.25 0.30 0.36 |
0.10 0.15 0.20 0.25 0.30 0.36 |
+10 +10 +10 +10 +10 +10 |
-10 -10 -10 -10 -10 -10 |
3.17 3.17 3.17 4.76 4.76 4.76 |
0 0 0 0 0 0 |
Tension Test Flattening Test Flare Test/Flange Test *Reverse Bend Test Hardness Test 100% Hydrostatic Test * Reverse Flattening Test Refer to ASTM A - 450 *Wherever Applicable |
| ASTM A-269 Seamless & Welded Tubing for General Service |
Upto 12.7 12.7-38.1 excl. 38.1-88.9 excl. 88.9-139.7 excl. 139.7-203.2 excl. |
0.13 0.13 0.25 0.38 0.76 |
0.13 0.13 0.25 0.38 0.76 |
+15 +10 +10 +10 +10 |
-15 -10 -10 -10 -10 |
3.2 3.2 4.8 4.8 4.8 |
0 0 0 0 0 |
Flare Test Flange Test (Welded Only) Hardness Test Flattening Test, Reverse Flattening 100% Hydrostatic |
| ASTM A - 312 Seamless & Welded Pipe |
13.70-48.3 incl. 48.3-114.3 incl. 114.3-220 incl. |
0.40 0.79 1.60 |
0.79 0.79 0.79 |
+12.5 | -12.5 | 6.4 6.4 6.4 |
0 0 0 |
Tension Test Flattening Test 100% Hydrostatic Test Refer to ASTM A-530 |
| (Normaly Random Lengths Ordered) | ||||||||
| ASTM - 358 Welded Pipe for High Temperature Service. | For all Size 5" NB & Above | +0.5% | -0.5% | -- | 0.3mm | Customers Requirements | Transvers Tension Test Transverse guided bend test. Hydrostatic test, radiographic (optional.) |
|
| ASTM A - 554 Mechanical Steel Tubing | Upto 5" 127 mm | 0.1 to 0.5 | to 0.5 | +10 | -10 | 1.6 to 4.88 | 0 | As per Customer Requirement |
Chemical Composition Chart
| Grade AISI | C | Mn | P | S | Si | Cr | Ni | Mo | Other |
| J7 | 0.10 | 8.50-10.00 | 0.090 | 0.030 | 0.75 | 15.00-16.00 | 0.25-0.50 | - | - |
| J4 | 0.10 | 8.50-10.00 | 0.090 | 0.030 | 0.75 | 15.00-16.00 | 0.80-1.20 | - | - |
| 201 | 0.15 | 5.50-7.50 | 0.060 | 0.030 | 1.00 | 16.00-18.00 | 3.50-5.50 | - | N 0.25 |
| 202 | 0.15 | 7.50-10.00 | 0.060 | 0.030 | 1.00 | 17.00-19.00 | 4.00-6.00 | - | N 0.25 |
| 301 | 0.15 | 2.00 | 0.045 | 0.030 | 1.00 | 16.00-18.00 | 6.00-8.00 | - | - |
| 302 | 0.15 | 2.00 | 0.045 | 0.030 | 0.75 | 17.00-19.00 | 8.00-10.00 | - | - |
| 304 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00-20.00 | 8.00-10.50 | - | - |
| 304 L | 0.03 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00-20.00 | 8.00-12.00 | - | - |
| 304 H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00-20.00 | 8.00-10.50 | - | - |
| 305 | 0.12 | 2.00 | 0.045 | 0.030 | 0.75 | 17.00-19.00 | 10.50-13.00 | - | - |
| 308 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 19.00-21.00 | 10.00-12.00 | - | - |
| 309 | 0.20 | 2.00 | 0.045 | 0.030 | 1.00 | 22.00-24.00 | 12.00-15.00 | - | - |
| 309 S | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 22.00-24.00 | 12.00-15.00 | - | - |
| 310 | 0.25 | 2.00 | 0.045 | 0.030 | 1.50 | 24.00-2600 | 19.00-22.00 | - | - |
| 310 S | 0.08 | 2.00 | 0.045 | 0.030 | 1.50 | 24.00-26.00 | 19.00-22.00 | - | - |
| 316 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | - |
| 316 L | 0.03 | 2.00 | 0.045 | 0.030 | 0.75 | 16.00-18.00 | 10.00-15.00 | 2.00-3.00 | - |
| 316 H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 0.75 | 16.00-18.00 | 10.00-14.00 | - | - |
| 316 Ti | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | Tis*C. Min |
| 317 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00-20.00 | 11.00-15.00 | 3.00-4.00 | - |
| 317 L | 0.03 | 2.00 | 0.045 | 0.030 | 0.75 | 18.00-20.00 | 11.00-15.00 | 3.00-4.00 | - |
| 321 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 17.00-19.00 | 9.00-12.00 | - | Ti 5xC% |
| 321H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 0.75 | 17.00-19.00 | 9.00-12.00 | - | Ti 5xC% |
| 347 | 0.08 | 2.00 | 0.045 | 0.030 | 0.75 | 17.00-19.00 | 9.00-13.00 | Na+Ta 10xC% | |
| 347 H | 0.04-0.10 | 2.00 | 0.045 | 0.030 | 0.75 | 17.00-19.00 | 9.00-13.00 | - | Na+Ta 10xC% |
| 409 L | 0.03 | 1.00 | 0.040 | 0.020 | 1.00 | 10.50-11.70 | 0.050 | Ti 6x(C=N) Min | |
| 410 | 0.15 | 1.00 | 0.040 | 0.030 | 1.00 | 11.50-13.50 | 0.75 | - | - |
| 410 S | 0.08 | 1.00 | 0.040 | 0.030 | 1.00 | 11.50-13.50 | 0.60 | - | - |
| 420 | 0.15 Min | 1.00 | 0.045 | 0.030 | 1.00 | 10.50-15.50 | 1.0-2.5 | - | Mo 0.20-1.20 |
| 429 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 14.00-16.00 | - | - | - |
| 430 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 16.00-18.00 | 0.75 | - | - |
| 430 Ti | 0.12 | 1.25 | 0.060 | 0.15 | 1.00 | 16.00-18.00 | - | - | Ti 0.75 |
| 439 | 0.03 | 1.00 | 0.040 | 0.030 | 1.00 | 17.00-19.00 | 0.50 | - | Ti[0.20+4(C+N)] Min,1.10 max Al 0.15 |
| 441 | 0.03 | 1.00 | 0.040 | 0.030 | 1.00 | 17.50-19.50 | 1.00 | Ti 0.10 to0.50 | |
| 444 | 0.025 | 1.00 | 0.040 | 0.030 | 1.00 | 17.50-19.50 | 1.00 | 1.75-2.50 | (Ti+Cb) [0.20+4(C+N] min,0.80 max |
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