Manufacturing Inspection
Quality Control
| Chemical Composition | ||||||
|---|---|---|---|---|---|---|
| Limit | C | SI | S | Mn | Ni | Cr |
| Max | 3.10 | 1.60 | 0.03 | 0.3 | 0.005 | 0.006 |
| Min | 3.70 | 2.70 | 0.1 | 1.0 | 0.5 | 0.4 |
| Dimension | ||||
|---|---|---|---|---|
| Sr No | Product | Parameters | Acceptance criteria | |
| 1 | Finished centrifugally cast cylinder liner | Length | ±0.2 mm | |
| O.D / F.F | ±0.025 mm | |||
| O.D / S.F | ±0.1 mm | |||
| Inner diameter | ±0.025 mm | |||
| Collar diameter | ±0.025 mm | |||
| Collar width | ± 0.05 mm (finished) | |||
| ± 0.1 mm (semi) | ||||
- Hardness 190 – 260 BHN
- Tensile Strength 22-25 Kgf/sqm
- Surface Roughness 0.4 to 0.8 micron
- Micro Structure Graphite Type “A” & “B” (“D” & “E” random)
- Surface Roughness 0.4 to 0.8 micron
- Flake Size: Max 4-8
- Matrix Free Ferrites max 5-6%
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