Class K12 DN2400 ductile iron pipe features a 2400 mm internal diameter and a nominal wall thickness of 34.8 mm calculated via the ISO 2531 formula (e = 12\u00b7(0.5 + 0.001\u00b72400)). Each 6 m segment is centrifugally cast from GGG50 ductile iron, internally lined with cement mortar per ISO 4179 and externally zinc-sprayed plus bituminous coated per ISO 8179 for superior corrosion resistance. Compliant with ISO 2531\/EN 545 (potable water) and EN 598 (sewerage), it is rated PN 25\u201340 for high-pressure trunk mains and routinely exceeds 100 years of service life, as recognized by DIPRA\u2019s Century Club. Installation is efficient via Tyton push-on, mechanical restraint (AWWA C111) or ANSI B16.1 flanged joints, supporting open-cut, HDD and pipe-jacking methods.<\/p>\n
Class K12 DN2400 is ideal for:<\/p>\n
Municipal Water Distribution:<\/strong> Serves as primary transmission mains, delivering high volumes with minimal head loss and meeting EN 545 drinking-water purity requirements.<\/p>\n<\/li>\n Sewerage Systems:<\/strong> Smooth cement-mortar lining minimizes hydraulic resistance and reduces blockages in long-distance rising and gravity mains.<\/p>\n<\/li>\n Irrigation & Water Conservancy:<\/strong> Conveys water across varied terrain\u2014canals, reservoirs and agricultural schemes\u2014while withstanding external loads and thermal stresses.<\/p>\n<\/li>\n<\/ul>\n Extensive utility records confirm modern ductile iron pipelines surpass 100 years<\/strong> of reliable operation, earning inclusion in DIPRA\u2019s Century Club. Cement-mortar linings (ISO 4179) virtually eliminate internal corrosion, and zinc\/bitumen coatings (ISO 8179) provide external sacrificial protection, extending life to 100\u2013125 years<\/strong> with minimal upkeep. Lifecycle analyses demonstrate ductile iron outperforms HDPE (\u224850\u201360 years) and PVC alternatives, reducing replacement frequency and total cost of ownership.<\/p>\n Joint Options:<\/strong> Tyton push-on gaskets per ISO 4633, self-restraining K-type, mechanical restraint (AWWA C111) and ANSI B16.1 flanged connections enable rapid, tool-light assemblies with leak-proof performance under surge.<\/p>\n<\/li>\n Open-Cut & Trenchless:<\/strong> Follows AWWA C600 for open-cut; HDD (up to DN 1000) and pipe-jacking (beyond DN 1000) minimize surface disruption on roads, rivers and sensitive sites.<\/p>\n<\/li>\n Angular Deflection:<\/strong> Socket-spigot joints accommodate \u00b10.5 % deflection (~\u00b112 mm over 2 m), reducing the need for elbows and fittings in curved alignments.<\/p>\n<\/li>\n<\/ul>\n ISO 2531 \/ EN 545:<\/strong> Ductile iron pipes, fittings & accessories for potable water.<\/p>\n<\/li>\n ISO 7186 \/ EN 598:<\/strong> Products for sewerage and wastewater applications.<\/p>\n<\/li>\n ISO 4179:<\/strong> Cement-mortar lining requirements.<\/p>\n<\/li>\n ISO 8179:<\/strong> Zinc coating and bituminous protection.<\/p>\n<\/li>\n ISO 13470:<\/strong> Trenchless jacking pipe components.<\/p>\n<\/li>\n<\/ul>\n <\/p>\n High Structural Strength:<\/strong> Resists up to 3\u00d7 PFA internal pressure and major external loads (traffic, ground settlement).<\/p>\n<\/li>\n Leak-Free Performance:<\/strong> Gasketed and restrained joints maintain integrity under surge and cyclic loading.<\/p>\n<\/li>\n Exceptional Corrosion Resistance:<\/strong> Multi-layer protection (zinc\/bitumen\/PE sleeving) for varied soil chemistries.<\/p>\n<\/li>\n Long Service Life:<\/strong> Proven 100+ year lifespan minimizes maintenance and replacement.<\/p>\n<\/li>\n Environmental Sustainability:<\/strong> High recycled content; fully recyclable; lower life-cycle carbon footprint versus alternatives.<\/p>\n<\/li>\n<\/ul>\n Q1: What defines Class K12?<\/strong> Q2: Which standards apply?<\/strong> Q3: How long is the service life?<\/strong> Q4: What installation methods are supported?<\/strong> Q5: How does pricing compare?<\/strong> Global Municipal Water Project (DIPRA):<\/strong> Multiple utilities report successful DN2000\u20132400 installations, benefiting from long-term reliability and low life-cycle costs.<\/p>\n<\/li>\n Port of Tampa Rehabilitation (JM Eagle):<\/strong> Replaced corroded 35-year-old cast iron mains with ductile iron, resolving aggressive-soil leaks and avoiding repeat failures.<\/p>\n<\/li>\n Wildfire Resilience Test (Materials Performance):<\/strong> A DN2400 pipeline endured controlled wildfire temperatures with negligible integrity loss, confirming ductile iron\u2019s extreme-heat durability.<\/p>\n<\/li>\n<\/ul>\nService Life<\/h2>\n
Installation & Connection<\/h2>\n
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International Standards<\/h2>\n
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Other Series Price Comparison<\/h2>\n
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\n \nClass<\/th>\n Wall Thickness (mm)<\/th>\n Price<\/th>\n<\/tr>\n<\/thead>\n \n K7<\/td>\n 7\u00b7(0.5+0.001\u00b72400)=20.3<\/td>\n 400\u2013500 USD\/ton<\/td>\n<\/tr>\n \n K8<\/td>\n 8\u00b7(0.5+0.001\u00b72400)=23.2<\/td>\n 480\u2013550 USD\/ton<\/td>\n<\/tr>\n \n K9<\/td>\n 9\u00b7(0.5+0.001\u00b72400)=26.1<\/td>\n 500\u2013600 USD\/ton<\/td>\n<\/tr>\n \n K12<\/strong><\/td>\n 12\u00b7(0.5+0.001\u00b72400)=34.8<\/strong><\/td>\n 558 USD\/m (1\u201349 t), 489 USD\/m (50\u201399 t), 376 USD\/m (100+ t)<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n Advantages<\/h2>\n
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Frequently Asked Questions<\/h2>\n
Calculated by ISO 2531: e = 12\u00b7(0.5 + 0.001\u00b7DN), yielding 34.8 mm at DN 2400.<\/p>\n
ISO 2531\/EN 545 (water), ISO 7186\/EN 598 (sewerage), ISO 4179 (lining), ISO 8179 (coating) and ISO 13470 (trenchless).<\/p>\n
With proper lining\/coating, service life routinely exceeds 100 years and can reach 125 years in optimal conditions.<\/p>\n
Open-cut (AWWA C600), HDD and pipe-jacking, with Tyton push-on, mechanical restraint and flanged joints for fast, secure assembly.<\/p>\n
FOB China rates start at USD 558\/m (1\u201349 t) with volume discounts to USD 376\/m (100+ t); per-ton rates for thinner classes range USD 400\u2013600 \/ ton.<\/p>\nCase Studies<\/h2>\n
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ductile iron pipe dimensions<\/h2>\n
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\n <\/td>\n <\/td>\n <\/td>\n Pipe body weight \uff08kg\/m)<\/td>\n <\/td>\n <\/td>\n<\/tr>\n \n (Inside Diameter)<\/td>\n (Outside Diameter)<\/td>\n Socket Weight<\/td>\n K8<\/td>\n K9<\/td>\n K10<\/td>\n C class<\/td>\n Total weight of Active Length=6M (kg)<\/td>\n Total weight of Active Length=5.7M (kg)<\/td>\n<\/tr>\n \n DN(mm)<\/td>\n OD(mm)<\/td>\n \u2248 kg<\/td>\n Class<\/td>\n kg\/m<\/td>\n K8<\/td>\n K9<\/td>\n K10<\/td>\n C class<\/td>\n K8<\/td>\n K9<\/td>\n K10<\/td>\n C class<\/td>\n<\/tr>\n \n 80<\/td>\n 98<\/td>\n 3.40<\/td>\n 12.20<\/td>\n 12.20<\/td>\n 12.20<\/td>\n C40<\/td>\n 9.10<\/td>\n 77.00<\/td>\n 77.00<\/td>\n 77.00<\/td>\n 58.00<\/td>\n 73.00<\/td>\n 73.00<\/td>\n 73.00<\/td>\n 55.00<\/td>\n<\/tr>\n \n 100<\/td>\n 118<\/td>\n 4.30<\/td>\n 14.90<\/td>\n 15.10<\/td>\n 15.10<\/td>\n C40<\/td>\n 11.12<\/td>\n 93.70<\/td>\n 95.00<\/td>\n 95.00<\/td>\n 71.00<\/td>\n 90.00<\/td>\n 91.00<\/td>\n 90.00<\/td>\n 68.00<\/td>\n<\/tr>\n \n 125<\/td>\n 144<\/td>\n 5.70<\/td>\n <\/td>\n 18.90<\/td>\n <\/td>\n C40<\/td>\n <\/td>\n <\/td>\n 119.00<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n \n 150<\/td>\n 170<\/td>\n 7.10<\/td>\n 21.80<\/td>\n 22.80<\/td>\n 22.80<\/td>\n C40<\/td>\n 16.48<\/td>\n 138.00<\/td>\n 144.00<\/td>\n 144.00<\/td>\n 106.00<\/td>\n 132.00<\/td>\n 138.00<\/td>\n 137.00<\/td>\n 101.00<\/td>\n<\/tr>\n \n 200<\/td>\n 222<\/td>\n 10.30<\/td>\n 28.70<\/td>\n 30.60<\/td>\n 30.60<\/td>\n C40<\/td>\n 22.62<\/td>\n 183.00<\/td>\n 194.00<\/td>\n 194.00<\/td>\n 146.00<\/td>\n 174.00<\/td>\n 185.00<\/td>\n 185.00<\/td>\n 139.00<\/td>\n<\/tr>\n \n 250<\/td>\n 274<\/td>\n 14.20<\/td>\n 35.60<\/td>\n 40.20<\/td>\n 44.30<\/td>\n C40<\/td>\n 32.63<\/td>\n 228.00<\/td>\n 255.00<\/td>\n 280.00<\/td>\n 210.00<\/td>\n 218.00<\/td>\n 244.00<\/td>\n 267.00<\/td>\n 200.00<\/td>\n<\/tr>\n \n 300<\/td>\n 326<\/td>\n 18.90<\/td>\n 45.30<\/td>\n 50.80<\/td>\n 56.30<\/td>\n C30<\/td>\n 43.90<\/td>\n 290.00<\/td>\n 323.00<\/td>\n 357.00<\/td>\n 282.00<\/td>\n 278.00<\/td>\n 309.00<\/td>\n 340.00<\/td>\n 269.00<\/td>\n<\/tr>\n \n 350<\/td>\n 378<\/td>\n 23.70<\/td>\n 55.90<\/td>\n 63.20<\/td>\n 69.60<\/td>\n C30<\/td>\n 51.88<\/td>\n 359.00<\/td>\n 403.00<\/td>\n 441.00<\/td>\n 335.00<\/td>\n 343.00<\/td>\n 384.00<\/td>\n 420.00<\/td>\n 319.00<\/td>\n<\/tr>\n \n 400<\/td>\n 429<\/td>\n 29.50<\/td>\n 67.30<\/td>\n 75.50<\/td>\n 83.70<\/td>\n C30<\/td>\n 60.78<\/td>\n 433.00<\/td>\n 482.00<\/td>\n 532.00<\/td>\n 394.00<\/td>\n 414.00<\/td>\n 460.00<\/td>\n 506.00<\/td>\n 376.00<\/td>\n<\/tr>\n \n 450<\/td>\n 480<\/td>\n 38.30<\/td>\n 80.00<\/td>\n 89.30<\/td>\n 99.00<\/td>\n C30<\/td>\n 73.30<\/td>\n 515.00<\/td>\n 575.00<\/td>\n 632.00<\/td>\n 472.00<\/td>\n 492.00<\/td>\n 550.00<\/td>\n 597.00<\/td>\n 450.00<\/td>\n<\/tr>\n \n 500<\/td>\n 532<\/td>\n 42.80<\/td>\n 92.80<\/td>\n 104.30<\/td>\n 115.60<\/td>\n C30<\/td>\n 87.20<\/td>\n 600.00<\/td>\n 669.00<\/td>\n 736.00<\/td>\n 566.00<\/td>\n 572.00<\/td>\n 638.00<\/td>\n 702.00<\/td>\n 540.00<\/td>\n<\/tr>\n \n 600<\/td>\n 635<\/td>\n 59.30<\/td>\n 122.00<\/td>\n 137.30<\/td>\n 152.00<\/td>\n C30<\/td>\n 120.62<\/td>\n 791.00<\/td>\n 882.00<\/td>\n 971.00<\/td>\n 783.00<\/td>\n 755.00<\/td>\n 842.00<\/td>\n 926.00<\/td>\n 747.00<\/td>\n<\/tr>\n \n 700<\/td>\n 738<\/td>\n 79.10<\/td>\n 155.00<\/td>\n 173.90<\/td>\n 193.00<\/td>\n C25<\/td>\n 142.15<\/td>\n 1009.00<\/td>\n 1123.00<\/td>\n 1237.00<\/td>\n 932.00<\/td>\n 963.00<\/td>\n 1071.00<\/td>\n 1179.00<\/td>\n 889.00<\/td>\n<\/tr>\n \n 800<\/td>\n 842<\/td>\n 102.60<\/td>\n 192.00<\/td>\n 215.20<\/td>\n 239.00<\/td>\n C25<\/td>\n 177.07<\/td>\n 1255.00<\/td>\n 1394.00<\/td>\n 1537.00<\/td>\n 1165.00<\/td>\n 1197.00<\/td>\n 1330.00<\/td>\n 1465.00<\/td>\n 1112.00<\/td>\n<\/tr>\n \n 900<\/td>\n 945<\/td>\n 129.60<\/td>\n 232.00<\/td>\n 260.20<\/td>\n 289.00<\/td>\n C25<\/td>\n 197.68<\/td>\n 1521.00<\/td>\n 1691.00<\/td>\n 1863.00<\/td>\n 1446.00<\/td>\n 1452.00<\/td>\n 1613.00<\/td>\n 1777.00<\/td>\n 1257.00<\/td>\n<\/tr>\n \n 1000<\/td>\n 1048<\/td>\n 161.30<\/td>\n 275.00<\/td>\n 309.30<\/td>\n 343.20<\/td>\n C25<\/td>\n 266.28<\/td>\n 1811.00<\/td>\n 2017.00<\/td>\n 2221.00<\/td>\n 1759.00<\/td>\n 1729.00<\/td>\n 1925.00<\/td>\n 2118.00<\/td>\n 1679.00<\/td>\n<\/tr>\n \n 1100<\/td>\n 1152<\/td>\n 194.70<\/td>\n <\/td>\n 362.80<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n 2372.00<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n \n 1200<\/td>\n 1255<\/td>\n 237.70<\/td>\n 374.00<\/td>\n 420.10<\/td>\n 466.10<\/td>\n C25<\/td>\n 373.88<\/td>\n 2482.00<\/td>\n 2758.00<\/td>\n 3034.00<\/td>\n 2481.00<\/td>\n 2370.00<\/td>\n 2632.00<\/td>\n 2894.00<\/td>\n 2369.00<\/td>\n<\/tr>\n \n 1400<\/td>\n 1462<\/td>\n 279.30<\/td>\n <\/td>\n 547.20<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n 3563.00<\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n ductile iron pipe\u00a0Mechanical property<\/h2>\n
\n\n
\n Mechanical Property<\/td>\n<\/tr>\n \n Nominal Diameter<\/td>\n Hydraulic test<\/td>\n Tensile strength<\/td>\n Elogation<\/td>\n Yield strength<\/td>\n Bending strength<\/td>\n Brinell hardness<\/td>\n Thickness of cement lining<\/td>\n<\/tr>\n \n DN(MM)<\/td>\n Mpa<\/td>\n Mpa<\/td>\n %<\/td>\n Mpa<\/td>\n Mpa<\/td>\n HB<\/td>\n mm<\/td>\n<\/tr>\n \n DN80-DN300<\/td>\n 5<\/td>\n \u2265420<\/td>\n \u226510<\/td>\n \u2265300<\/td>\n \u2265590<\/td>\n \u2264230<\/td>\n 3<\/td>\n<\/tr>\n \n DN350-DN600<\/td>\n 4<\/td>\n \u2265420<\/td>\n \u226510<\/td>\n \u2265300<\/td>\n \u2265590<\/td>\n \u2264230<\/td>\n 5<\/td>\n<\/tr>\n \n DN700-DN1000<\/td>\n 3.2<\/td>\n \u2265420<\/td>\n \u226510<\/td>\n \u2265300<\/td>\n \u2265590<\/td>\n \u2264230<\/td>\n 6<\/td>\n<\/tr>\n \n DN1100-DN1600<\/td>\n 2.5<\/td>\n \u2265420<\/td>\n \u22657<\/td>\n \u2265300<\/td>\n \u2265590<\/td>\n \u2264230<\/td>\n \u2026..<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":2009,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"tags":[],"products":[10],"class_list":["post-2008","product","type-product","status-publish","has-post-thumbnail","hentry","products-ductile-iron-pipes"],"acf":[],"yoast_head":"\n