Test requirements of ASTM A312 A213 A269 Compared
| Test Items | ASTM A312 / ASME SA312 | ASTM A269 | ASTM A213 / ASME SA213 or ASTM A213/A269 |
| Tensile Strength Test | Lot≤100Pcs, 1Pcs Per Lot Lot＞100Pcs, 2 Pcs Per Lot | no requirement | Lot≤50Pcs, 1Pcs Per Lot Lot＞50Pcs, 2 Pcs Per Lot |
| Hardness Test | no requirement | 2 Pcs | 2 Pcs |
| Flaring Test | 5% of Each Lot | no requirement | Each end of one finihed tubes |
| Flattening Test | no requirement | 1 Pcs | each end of another finihed tubes |
| Intergranular Test | according to order | according to order | according to order |
| Grain Size | 304H/321H/316H/347H | no requirement | 304H/321H/316H/347H |
| Eddy Current Test or Hydrostatic Test | alternative | alternative | alternative |
| Ultrasonic Test | according to order | according to order | according to order |
