| I.S.W.G. | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | I.S.W.G |
| Milimeters | 4.877 | 4.47 | 4.064 | 3.658 | 3.251 | 2.496 | 2.642 | 2.337 | 2.032 | 1.829 | 1.626 | 1.422 | 1.219 | 1.016 | 0.914 | 0.813 | 0.711 | 0.61 | 0.559 | 0.508 | 0.457 | 0.416 | milimeters |
| Inches | 0.192 | 0.176 | 0.160 | 0.144 | 0.128 | 0.116 | 0.104 | 0.092 | 0.080 | 0.072 | 0.064 | 0.056 | 0.048 | 0.040 | 0.036 | 0.032 | 0.028 | 0.024 | 0.022 | 0.020 | 0.018 | 0.016 | Inches |
| Apperance | Visual Inspection | 100% | |||||||||||||||||||||
| 2 | Drawing Process | Dimension | Micro Meter | Random Sampling | |||||||||||||||||||
| Surface | Visual Inspection | 100% | |||||||||||||||||||||
| 3 | Straightening / Coiling | Dimension | Micro Meter | Random Sampling | |||||||||||||||||||
| Straightness | Visual Inspection & Measurement | Random Sampling | |||||||||||||||||||||
| 4 | Eddy Current Test | Surface & Internal Defects | Eddy Current Test Equipment | 100% | |||||||||||||||||||
| 5 | Finish Cutting | Length | Measuring Tape | 100% | |||||||||||||||||||
| 6 | Pre-Inspection | Dimension | Deburring Tools | 100% | |||||||||||||||||||
| Straightness | Micro Meter | 100% | |||||||||||||||||||||
| Measuring Tape | 100% | ||||||||||||||||||||||
| 7 | Annealing | Temperature | Thermo Couple | Batch Wise | |||||||||||||||||||
| 8 | Dimensional Check | Outer Diameter, Wall Thickness | Micro Meter | 100% | |||||||||||||||||||
| Length Straightness | Measuring Tape | 100% | |||||||||||||||||||||
| 9 | Visual Inspection | Surface | Visual | 100% | |||||||||||||||||||
| 10 | Mechanical Properties Test | Expansion Test | UTM | Random Sampling | |||||||||||||||||||
| Flattering Test | UTM | Random Sampling | |||||||||||||||||||||
| Hardness Strength Test | UTM | Random Sampling | |||||||||||||||||||||
| Tensile Strength Test | UTM | Random Sampling | |||||||||||||||||||||
| Marking & Packing | Customer’s Requirement | 100% |