Yellow Colour PU Coated DI Pipe

China top supplier ISO2531 EN545 Polyurethane PU coating Ductile Iron Pipes C40 K9 drinking water

Standard:ISO2531/EN545

Specifications:
1) The standard of pipe: ISO 2531, EN545
2) Pipe class: K9, C40, C30, C25, etc.
3) Pipe joint: push-on joint(Tyton joint), K type joint, self-restrained joint
4) Effective length: in general, the pipe length is 6m for bulk shipment and 5.7m for container shipment.
5) Gaskets are NBR rubber, natural rubber, SBR rubber or EPDM rubber ring as per ISO4633
6) DN 80 – 2,600 mm
7) High strength, lighter than gray iron, good corrosion resistance, no furring, small flow resistance, easy fixing, long life time
8) Checked by automatic inspection equipment
9) Chemical composition: (%)
1. a) C: 3.5 – 4.0
2. b) Si: 1.9 – 2.6
3. c) Mn:0.15 – 0.45
4. c) P: <0.06
5. d) S: <0.02
10) Mechanical properties
1. a) Tensile strength: ≥420MPa
2. b) Yield strength: ≥300Mpa
3. c) Hardness: ≤230HB
4. d) Elongation%: DN80 – 1000 ≥10 DN1200 – 2200 ≥7

11) Process and testing:
1. a) Induction furnace and treated metal (Chemical analysis of raw material, spheroidizing & Nodularity)
2. b) Casting (Visual check and weight check)
3. c) Heat treatment (Micro structure)
4. d) Hydrostatic test (Pressure test)
5. e) Dimensional checks (Checking pipe length and joint, OD, wall thickness, appearance)
6. f) Zinc spraying (Thickness testing)
7. g) Lining and coating (100% visual check, thickness testing randomly)
8. i) Marking and packing (100% visual check)

12) The pipe coating can be customized, such as, zinc-aluminum alloy, PU, etc.

Packing: bundled with steel belts or in bulk
Shipment: in bulk or container