Key Specifications/Special Features:Standards: ASTM A240, JIS G4304, G4305, GB/T 4237, GB/T 8165, BS 1449, DIN17460, DIN 17441Grades: 200s, 300, 400 seriesT......
| Diameter/mm | Precision Tolerance | ||
| Precision Level | |||
| Level | Level | Level | |
| 5.5-7 | ±0.20 | ±0.30 | ±0.40 |
| >7-12 | ±0.25 | ±0.35 | ±0.40 |
| >20-30 | ±0.30 | ±0.40 | ±0.50 |
| >30-50 | ±0.40 | ±0.50 | ±0.60 |
| >50-80 | ±0.60 | ±0.70 | ±0.80 |
| >80-110 | ±0.90 | ±1.00 | ±1.10 |
| >110-150 | ±1.20 | ±1.30 | ±1.10 |
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