High Precision Burnished Tubes/Skived Bore Tubes
JIANGSU LIANGYI CO., LIMITED- Type：Seamless
- Technique：Cold Drawn
- Surface Treatment：Honed
- Usage：Pipeline Transport, Oil,Gas Drilling
- Section Shape：Round
- Steel Grade of Burnished Tubes：Carbon Steel, Allloy Steel
Base Info
- Model NO.：High Precision Burnished Tubes
- Precision of Burnished Tubes：H7, H8, H9
- Certificate of Skived Bore Tubes：API
- Roughness of Skived Bore Tubes：Ra 0.8
- Transport Package：Plywooden Case
- Specification：as per the clients
- Trademark：Burnished Tubes
- Origin：China
- HS Code：72284000
- Production Capacity：5000 PCS,Month
Description
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Internal surface treatment method: honing or skiving and roller burnishing OD tolerance: as per DIN2391-1 ID tolerance: H7,H8,H9,H10 or given by customer. W.T tolerance(eccentricity): +/-5% Bore roughness(Ra): 0.3um max. Chemical composition requirement of ST52 material: |
| Inside Dia (mm) | ID Tolerance (mm) | WT Tolerance (mm) | ||||
| H7 | H8 | H9 | H10 | |||
| ≤30 | +0.021/0 | +0.033/0 | +0.052/0 | +0.084/0 |
±7.5% >210mm ±10% |
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| 30 - ≤50 | +0.025/0 | +0.039/0 | +0.062/0 | +0.100/0 | ||
| 50 - ≤80 | +0.030/0 | +0.046/0 | +0.074/0 | +0.120/0 | ||
| 80 - ≤120 | +0.035/0 | +0.054/0 | +0.087/0 | +0.140/0 | ||
| 120 - ≤180 | +0.040/0 | +0.063/0 | +0.100/0 | +0.160/0 | ||
| 180 - ≤250 | +0.046/0 | +0.072/0 | +0.115/0 | +0.185/0 | ||
| 250 - ≤315 | +0.052/0 | +0.081/0 | +0.130/0 | +0.210/0 | ||
| 315 - ≤700 | +0.057/0 | +0.089/0 | +0.140/0 | +0.230/0 |
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