Plastics pipes are finding increasing application and are replacing pipes made from conventional materials in a spectrum of applications. They offer several advantages like: lightweightedness, toughness, resistance to chemical attack, availability in large lengths,etc. They reduce the cost of handling, transportation and installation, less number of joints facilitates the speed and reduces chances of leakage, superior adaptability to earth movements, smooth internal surface of the pipes offer less friction that saves the energy in the conveyance of water. Polypropylene producers have developed better grades for pipe application. Some of the recent developments are: LyondellBasell’s Hostalen PP N2122 is a natural polypropylene copolymer with an exceptional mechanical properties balance. The product has been specially designed for injection moulding for sewage and underground drainage systems and related products. The product provides high stiffness, excellent impact resistance at room temperature and in particular at sub-zero temperature in combination with long term properties. It is not intended for medical and pharmaceutical applications. It has a melt flow rate of 2.0g/10min, has good creep resistance and high impact strength to withstand heavy traffic loads and avoid damage during installation. The material is highly stabilized, as the application must survive several decades without thermal degradation. The resin meets customer requirements for innovative storm water management systems. The new, natural PP copolymer used in injection-molded rainwater regulating devices for channel drainage and total sewer systems. Borealis has introduced BorECOTM polypropylene (PP) materials that have been specifically developed to improve the performance of solid wall pipes for underground, non-pressure sewerage and industrial systems. Using Borealis’ unique Borstar® bimodal technology, BorECO PP high modulus grades help meet the pipe industry’s demands for speed and ease of production and installation, as well as for century long system service life. It builds on the well-established properties of PP to deliver optimized stiffness, corrosion and chemical resistance, impact, abrasion and stress crack resistance, even at low temperatures, flexibility and structural integrity to accommodate ground movements without breaking, high temperature resistance at 60°C; short-term up to 90°C. Importantly, the material offers an improved stiffness/impact property balance, allowing for the manufacture of thinner walled pipes at reduced pipe weight, while maintaining the same ring stiffness levels. This provides for low pipe weight per meter, increased pipe design freedom, safer pipe handling and easier installation at the trench, long-term in-service durability. Exhibiting very good processing characteristics that enable high output extrusion and short cycle time injection moulding using conventional equipment, it presents the possibility of a ‘one material’ solution for all elements that make up a system including smooth solid wall and structured wall pipes, small and large diameter soil and waste pipes, surface water pipes, underground pipe and cable protection systems, pipe fittings and inspection chambers. It is compatible with all commonly used jointing techniques, contains no heavy metals or other additives harmful to the environment and it can be recycled for pipe or for energy recovery through incineration. Ineos’ Eltex® TUB 350-HM00 is a low melt flow rate impact copolymer specifically designed for extrusion of non pressure pipes for drainage and sewerage, soil and waste. It offers a very high stiffness while keeping good impact strength (even at low temperature) and excellent processability. This grade has very good long term stability and provides excellent ring stiffness in both solid and structured wall gravity pipes. It’s features include very high rigidity (PP-HM), good impact resistance, non-filled, low density, high melt strength, very good long term stability, excellent processability (for solid and structured wall pipes extrusion). It offers a very good balance stiffness - impact strength (even at low temperature) and excellent processability for solid and structured wall pipes extrusion BorSafe HE3490-LSH is a latest generation PE100 pipe material from Borealis, specifically designed for pipes subject to elevated stresses and a high level risk of external damage from harsh laying conditions. The PE100- RC (Resistant to Crack) material is particularly suited to the aggressive conditions associated with modern, trenchless laying techniques that minimise above-ground disruption. The lack of soft, sandy bedding in directional drilling, pipe bursting and ploughing-in techniques makes robust pipe material a definite requirement. Classified MRS 10.0, BorSafe HE3490-LS-H is a product of Borealis' bimodal Borstar® process which delivers advanced performance and processing benefits to pipe material. BorSafe HE3490-LS-H offers low notch sensitivity and provides superior resistance to point loading and slow crack growth (SCG). It avoids the potential for tears in the pipe even when point loads caused by rocks occur. Because the material offers outstanding durability it is capable of delivering a service life exceeding 100 years. It is the ideal solution for withstanding the tough installation demands of no-dig directional drilling. This no-dig process eliminates the need for trenches thereby keeping surface work, digging, soil and pipe transportation, and laying to an absolute minimum. It also provides for faster, more economical pipe-laying. Borealis’ BorECO BA2000 and BorECO BA415E further expand polypropylene’s (PP) excellent track record as a high performance polyolefin for gravity pipe applications. Borealis continues its tradition of leading PP pipe material innovation by introducing BorECOTM BA2000. This pioneering high modulus (2000MPa) PP exceeds all requirements of the newly created S14 class in the revised EN1852 standard and provides further dimensioning options for non-pressure solid wall pipes. It allows pipe manufacturers to produce heavy duty pipes without mineral fillers and without additional investments in new production equipment, going beyond currently available stiffness whilst simultaneously maintaining excellent impact performance. BorECOTM BA415E is an excellent new material for structured wall pipes and injection moulded parts. It's outstanding processability contributes to a significantly higher throughput and lower energy consumption during the extrusion process. The new PP grade also substantially improves the overall quality and the aesthetic appearance of the pipe. It allows for a more precise corrugated outer layer. When used as a pipe inner layer, the occurrence of sink marks and chips is eliminated and potential waviness on the inner surface is reduced significantly. This high quality inner surface improves the black water flow and eliminates the risk of water stagnation which is often the reason for the generation of bacteria and bad odour. LyondellBasell has developed a new grade called Hifax EBS 153D NAT. High-impact strength, improved flexibility and good compression strength are just some of the many attributes offered by the polypropylene (PP) compound that addresses customer needs in the rapidly-expanding market for flexible pipeline systems used in off-shore, deep-sea oil exploration. Hifax EBS 153D NAT has been developed for use in multi-layer syntactic coating structures for flexible risers and flowlines in semi-flexible pipeline coating applications. Compared to standard PP compounds used in syntactic pipe coating, it features excellent softness, an essential advantage for flexible off-shore pipeline utilities. Semi-elastomeric coating layer based on the new resin enables customers to reduce the risk of stress and breakage in the coating during pipeline winding and installation. It also eases exploitation because the energy dissipation of the total pipeline system improves when exposed to seadrift. Deep water lines are exposed to extreme cold water temperatures on the exterior of the pipeline, while oil temperatures inside the line exceed 130°C. Coating systems must ensure not only anti-corrosion protection, but sufficient insulation properties to avoid increased viscosity of the crude oil during transport from the seabed to the oil platforms and floating vessels. Coating pipelines at greater depths present additional challenges. Coating layers must provide resistance to high compression as well as shear stresses that the pipe sections are subjected to during laying operations. These new developments will help PP to achieve better market penetration and market share