Ductile Iron Pipe fitting Casting
Standards:ISO2531,ISO4422,EN545
Material:Ductile Iron
Size:DN80-DN2000
Type:tee/cross/bend
Ductile iron pipe
1. Standards ISO2531 / BS EN545
2. Ductile iron
3. ISO 9001 Certificate
1. Material Ductile iron pipe
2. Standards ISO2531 / BS EN545
3. Certificate ISO 9001 2008 and BV Product Conformity
4. Size DN80-DN1600
5.Internal linings
No internal linings |
Portland cement/ high alumina cement/ sulphate resisting portland cement/ resistance hydrochloric cement lining in accordance with ISO 4179 |
Zinc coating plus bitumen painting |
Epoxy coating |
Others |
6.External coatings
No external coatings |
Zinc coating plus bitumen painting according ISO 8179 |
Metallic zinc with finishing layer |
Epoxy coating |
Others |
| Mechanical properties: | ||||
| Name | Tensile Strength | Elongation | Yield Strength | Hardness |
| Ductile iron fittings | ≥420MPa | ≥5% | ≥300MPa | ≤250HB |
| Hydrostatic test: | ||
| Norminal Diameter mm | Pressure | Test time |
| ≤300 | 25 Pa | ≥15S |
| 350-600 | ≥16 Pa | ≥15S |
| ≥700 | ≥10 Pa | ≥10S |
a) C: 3.4 - 3.7%
b) Si: 2.0 - 2.4%
c) P: <0.08%
d) S: <0.015
11) Pull strength: >420MPa
12) Yield: >10%
13) Hardness: <230HB
14) K type mechanical joint with flange and bolts available
15) Process and testing:
a) Blast furnace (Analysis of raw materials test )
b) Mg treatment (Micro & chemical composition test)
c) Pipe spinning (Temperature test)
d) Heat treatment (Micro structure; Flattening test)
e) Zinc coating (Thickness testing)
f) Dimensional checks (Thickness & Dia. testing)
g) Hydraulic test (Pressure test)
h) Internal lining (Thickness testing)
i) External coating (Thickness test)
