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Galvanized Iron Pipes

Post Date : January 29
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Item specifics

Square
Welded

Specifications

The British Standard Steel Tubes are produced to BS1387:1967, it is produced in three thickness class which known as Class A

Galvanized Iron Pipes

                                

Introduction

The British Standard Steel Tubes are produced to BS1387:1967, it is produced in three thickness class which known as Class A, Class B and Class C . Also available in black welded or hot dipped galvanised finish in 6 meter length.

Applications

For ordinary Conyeyance of steam, gas, air, water etc...

End Connection and End Protection

The Pipes have produced to two type of end connection :-

  • Plain end square cut ( P/E )
  • Threaded and Fixed with coupling ( T/C ) - Supplied screwed with taper threads to BS21 and fitted with one taper threaded malleable iron socket.           

 Identification Marking

Tubes are marked by colour bands about 50mm wide :-

Class A ( Light)Class B ( Medium )Class B ( Medium )
BrownBlueRed

Technical Specification, Wall Thickness and Dimension

Materials

The tubes and steel sockets shall be manufactured from steel which shows, on analysis, not more than 0.006% of suiphur and not more than 0.006% of phosphorus.
Mechanical PropertiesTensile strength : Between 21 ton f/in2 ( 33 kg f/mm2 )  and 30 ton f/in2 ( 47 kg f /mm2 ). Elongation on a gauge length of 5,65/so: not less than 20%.
Permissible Variation In Wall ThicknessLight Welded Tubes -                                -8% + not limited
Medium and Heavy Welded Tubes         -10% + not limited
Hot Dipped GalvanizingShall pass the four dip copper sulphate test prescribed as BS1387:1967 specification.
Hydraulic Test Pressure700 Ibs /in2 ( 50kgf/cm2 )
Bending TestPerformed on tube size 2 in and smaller, with the weld at 90% to the place of bending, Black tubes shall capable of being bent cold, without cracking through 1800 round a former having a radius equal to six times the outside diameter of the tube of the tube and galvanized tube through 900 round a former with a radius equal to eight times the outside diameter of the tube.
Flattening TestPerformed on the tube sizes over 2 in. using rings not less than 1-1/2 in. ( 38mm ) in kength cut from the ends of selected tubes. When such rings are flattened between parallel plates with the weld at 900 ( point of maximum bending ) no opening shall occur by fracture in a weld until the distance between the parallel plates is less than 75% of the original outside diameter of the tube and no cracks or breaks in the metal other than in a weld shall occur, until the said distance between the plates is less than 60% of the original outside diameter.

Wall Thickness, Diameter And Test Pressure

Please downloading on the following links for details information :-

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HDPE Pipes

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IntroductionPolyethylene ( PE ) was manufactured by High Density Polyethylene and known as HDPE Pipes.

HDPE Pipes Menu
IntroductionPolyethylene ( PE ) was manufactured by High Density Polyethylene and  known as  HDPE Pipes. It's currently manufactures from 20mm to 630mm in all pressure classes conforming to ISO 4427.4, DIN 8074/75, MS 1058 specification.

Please downloading the following links for specification, thickness, weight and production process.

Technical Specification

Production  Process

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Ductile Iron Pipes

Ductile Iron Pipes

Ductile Iron Pipes

Ductile Iron Pipes is centrifugal casting by using raw material of spheroidal iron where the carbon is present in the form of

Introduction 

Ductile Iron  Pipes is centrifugal casting by using raw material of spheroidal iron where the carbon is present in the form of small spheres, thus eliminating the risk of crack propagation and resulting in higher strength.
This is done by adding magnesium into molten iron, Therefore, the continuity of the iron matrix is maintained. providing excellent ductility, flexibility and impact resistance to iron.

Ductile Iron Pipes is using centrifugal casting method to produce as a tube form to cement lining internally, zinc coating and bitumen painting externally  and push-in joint as known socket spigot joint to jointing the pipes. The manufactured sizes range from DN100mm to DN800mm in diameter in standard lengths of 6 meters.

Standard Specification

Ductile Iron Pipes is certified by the Standard Industrial Research Institute Of Malaysia ( SRIM ) in compliance with BS EN 545:1995 and MS ISO 9002 Quality systems for Quality Assurance in Production, Installation and Servicing.

Downloading the specification , weight and dimension as following links :-

                             

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