ASTM A269 316L 12.7*0.8 Seamless Stainless Steel Tubes
ASTM A269 Seamless and Welded Austenitic Stainless Steel Tubing for General Service
Size range: O.D.: 4.0-760mm W.T.:1-50mm L: according to customer requirement
Manufacture:
The tubes are made by seamless or welded process.
The tubeing can be hot finished or cold finished
Heat treatment:
All tubes are furnished in the heat-treated condition
Mechanical Tests Requirement:
Flaring Test (Seamless Tubes)
Flange Test (Welded Tubes)
Hardness Test
Hydrastatic or Nondestructive Electric Test
Surface Condition:
The tube surface are pickled free of scale.
When bright annealing is used, pickling is not used.
Chemical Requirement:
| Grade: | TP201 | TP201LN | TP304 | TP304L | TP304LN | TP316 | TP316L | TP316LN |
| UNS | S20100 | S20153 | S30400 | S30403 | S30453 | S31600 | S31603 | S31653 |
| C, max | 0.15 | 0.03 | 0.08 | 0.035 | 0.035 | 0.08 | 0.035 | 0.035 |
| Mn, max | 5.5-7.5 | 6.4-7.5 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 |
| P, max | 0.06 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| S, max | 0.03 | 0.015 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 |
| Si, max | 1.00 | 0.075 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Ni | 3.5-6.5 | 4.0-5.0 | 8.0-11.0 | 8.0-12.0 | 8.0-11.0 | 10.0-14.0 | 10.0-15.0 | 10.0-13.0 |
| Cr | 16.0-18.0 | 16.0-17.5 | 18.0-20.0 | 18.0-20.0 | 18.0-20.0 | 16.0-18.0 | 16.0-18.0 | 16.0-18.0 |
| Mo | - | - | - | - | - | 2.00-3.00 | 2.00-3.00 | 2.00-3.00 |
| Ti | - | - | - | - | - | - | - | - |
| Tantalum | - | - | - | - | - | - | - | - |
| Columbium | - | - | - | - | - | - | - | - |
| Nitrogen | 0.25 | 0.10-0.25 | - | - | 0.10-0.16 | - | - | 0.10-0.16 |
| V | - | - | - | - | - | - | - | - |
| Copper | - | 1.00 | - | - | - | - | - | - |
| Others | - | - | - | - | - | - | - | - |
| Grade: | TP317 | TP321 | TP347 | TP348 | TP XM-10 | TP XM-11 | TP XM-15 | TP XM-19 |
| UNS | S31700 | S32100 | S34700 | S34800 | S21900 | S21904 | S38100 | S20910 |
| C, max | 0.08 | 0.08 | 0.08 | 0.08 | 0.08 | 0.040 | 0.08 | 0.06 |
| Mn, max | 2.00 | 2.00 | 2.00 | 2.00 | 8.0-10.00 | 8.0-10.00 | 2.00 | 4.0-6.0 |
| P, max | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 |
| S, max | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 |
| Si, max | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Ni | 11.0-15.0 | 9.0-12.0 | 9.0-12.0 | 9.0-12.0 | 5.5-7.5 | 5.5-7.5 | 10.0-14.0 | 11.5-13.5 |
| Cr | 18.0-20.0 | 17.0-19.0 | 17.0-19.0 | 17.0-19.0 | 19.0-21.5 | 19.0-21.5 | 16.0-18.0 | 20.5-23.5 |
| Mo | 3.00-4.00 | - | - | - | - | - | 2.00-3.00 | 1.5-3.0 |
| Ti | - | - | - | - | - | - | - | - |
| Tantalum | - | - | - | 0.10 | - | - | - | 0.10-0.30 |
| Columbium | - | - | 10XCmin 1.10max | - | - | - | - | - |
| Nitrogen | - | - | - | - | 0.15-0.40 | 0.15-0.40 | - | 0.20-0.40 |
| V | - | - | - | - | - | - | - | 0.10-0.30 |
| Copper | - | - | - | - | - | - | - | - |
| Others | - | - | - | Co 0.20max | - | - | - | - |
| Grade: | TP XM-29 | - | - | - | - | - | - | - |
| UNS | S24000 | S31254 | S31725 | S31726 | S31727 | S32053 | S30600 | S32654 |
| C, max | 0.08 | 0.020 | 0.035 | 0.035 | 0.030 | 0.030 | 0.018 | 0.020 |
| Mn, max | 11.5-14.5 | 1.00 | 2.00 | 2.00 | 1.00 | 1.00 | 2.00 | 2.0-4.0 |
| P, max | 0.060 | 0.030 | 0.045 | 0.045 | 0.030 | 0.030 | 0.020 | 0.030 |
| S, max | 0.030 | 0.015 | 0.030 | 0.030 | 0.030 | 0.030 | 0.020 | 0.005 |
| Si, max | 1.00 | 0.80 | 1.00 | 1.00 | 1.00 | 1.00 | 3.7-4.3 | 0.50 |
| Ni | 2.3-3.7 | 17.5-18.5 | 13.5-17.5 | 14.5-17.5 | 14.5-16.5 | 24.0-26.0 | 14.0-15.5 | 21.0-23.0 |
| Cr | 17.0-19.0 | 19.5-20.5 | 18.0-20.0 | 17.0-20.0 | 17.5-19.0 | 23.0-24.0 | 17.0-18.5 | 24.0-25.0 |
| Mo | - | 6.0-6.5 | 4.0-5.0 | 4.0-5.0 | 3.8-4.5 | 5.0-6.0 | 0.2 max | 7.0-8.0 |
| Ti | - | - | - | - | - | - | - | - |
| Tantalum | - | - | - | - | - | - | - | - |
| Columbium | - | - | - | - | - | - | - | - |
| Nitrogen | 0.20-0.40 | 0.18-0.22 | 0.20max | 0.10-0.20 | 0.15-0.21 | 0.17-0.22 | - | 0.45-0.55 |
| V | - | - | - | - | - | - | - | 0.30-0.60 |
| Copper | - | 0.50-1.00 | - | - | 2.8-4.0 | - | 0.50 max | - |
| Others | - | - | - | - | - | - | - | - |
| Permissible Variations in Dimensions |
| Group | Size, Outside
Diameter, in(mm) | Permissible Variations in Outside Diameter, in.[mm] | Permissible Variations in WT, % | Permisible Variations in Cut Length, in[mm]
Over Under |
| 1 | Up to 1/2(12.7) | ±0.005[0.13] | ±15 | 1/8[3.2] | 0 |
| 2 | 1/2 to 1 1/2, excl | ±0.005[0.13] | ±10 | 1/8[3.2] | 0 |
| 3 | 1 1/2 to 3 1/2, excl | ±0.010[0.25] | ±10 | 3/16[4.8] | 0 |
| 4 | 3 1/2 to 5 1/2, excl | ±0.015[0.38] | ±10 | 3/16[4.8] | 0 |
| 5 | 5 1/2 to 8, excl | ±0.030[0.76] | ±10 | 3/16[4.8] | 0 |
| 6 | 8 to 12, excl | ±0.040[1.01] | ±10 | 3/16[4.8] | 0 |
| 7 | 12 to 14, excl | ±0.050[1.26] | ±10 | 3/16[4.8] | 0 |
SUPPLEMENTARY REQUIREMENTS
S1 Stress-Releived Anneald Tubes
S2 Air Underwater Pressure Test
S3 Stablizing Heat Treatment
S4 Intergranular Corrosion Test
Referenced Documents:
ASTM Standards:
ASTM A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
ASTM A370 Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A480/A 480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting
Steel Plate, Shet, and Strips
ASTM A632 Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter)
for General Service
ASTM A1016/A 1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel
and Stainles Steel Tubes
ASTM E 527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
ASME B31.3 Process Piping
SAE J1086 Practice for Numbering Metals and Alloys
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