Shenyang Minmeatal is the professional exporter of ductile iron pipe fittings China including all kinds of tees ,bends ,joins. Specifications

Ductile Iron Socket Spigot Bend

 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)