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Technical Details

1. Chemical Analysis

CompositionCSiMnPSMg
Rate3.5-4.0%1.8-2.6%≤0.40%≤0.08%≤0.02%0.04-0.08%

2. Mechanical Properties

ItemTensile Strength (N/mm2)Elongation (%)Hardness(HB)
DN80-DN2600DN80-DN1000DN1100-DN2600DN80-DN2600
Pipe≥ 420≥ 10≥ 7≤230
Fitting≥ 420≥ 5≤250

Note: Proof Stress may be measured by agreement between the manufacturer and the purchaser.

3. Minimum Works Hydrostatic Test Pressure (unit: Bar, during time: 10s)

Nominal DiameterCentrifugal PipeFittingWeld-on/Screwed-on Flange Pipe
DN(mm)K<9K≥9Preferred C ClassPN10PN16PN25PN40
80-3000.5(K+1)250402516253240
350-6000.5K2403016
700-10000.5(K-1)2322510
1100-20000.5(K-2)2252510
2200-26000.5(K-3)2182510


● Flanged pipes

Dimensions of flanges are in conformity with ISO 7005-2 and EN 1092-2

1) Centrifugally cast pipes with welded-on flanges

DN80 to DN450: K9 for PN10, PN16, PN25 and PN40

DN500 and DN600: K9 for PN10, PN16 and PN25; K10 for PN40

DN700 to DN1600: K9 for PN 10, PN 16 and PN25

DN1800 to DN2600: K9 for PN10 and PN16


2) Centrifugally cast pipes with screwed-on flanges

DN80 to DN450: K9 or K10 for PN10, PN16, PN25 and PN40

DN500 and DN600: K9 or K10 for PN10, PN16 and PN25; K10 for PN40

DN700 to DN1200: K10 for PN10, PN16 and PN25

DN1400 to DN2600: K10 for PN10 and PN16


3) Pipes with integrally cast flanges

DN80 to DN600: K12 for PN10, PN16, PN25 and PN40

DN700 to DN1600: K12 for PN10, PN16 and PN25

DN1800 to DN2600: K12 for PN10 and PN16

4. DUCTILE IRON PIPE PUSH ON JOINT T-TYPE DIMENSION CHART (K9/K8/C)

DN(mm)DE(mm)Wall Thickness(mm)Approximate Weight of Socket(kg)UNIT WEIGHT L=6M (kg/PC)Preferred Calss
Nominal DiameterOutside DiameterK9K8CK9K8C
80986.06.04.43.40777759C40
1001186.06.04.44.30959471C40
1501706.06.04.57.10144138106C40
2002226.364.710.30194183146C40
2502746.865.514.20255228210C40
3003267.26.46.218.60323290282C40
3503787.76.86.323.70403359335C30
4004298.17.26.529.30482433394C30
4504808.67.66.938.30577515472C30
5005329.087.542.80669600566C30
6006359.98.88.759.30882791783C30
70073810.89.68.879.101,1231,009932C25
80084211.710.49.6102.601,3941,2551,165C25
90094512.611.210.6129.901,6901,5211,446C25
1000104813.51211.6161.302,0171,8111,759C25
1200125515.313.613.6237.302,7582,4822,482C25
1400146217.115.215.7385.803,6693,2073,403C25
1600166818.916.817.7375.404,6684,2134,408C25

* Any other questions, please feel free to contact us.

5. Lining and Coating of Pipe and Fitting


LiningCoating
1Ordinary Portland CementBituminous Paint
2High Alumina CementSynthetic Resin Paint
3Sulphur-resistant CementEpoxy
4EpoxyPolyurethane
5PolyurethanePolyethylene sleeving
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