{"id":1990,"date":"2025-04-24T14:05:46","date_gmt":"2025-04-24T06:05:46","guid":{"rendered":"https:\/\/www.ductileironsuppliers.com\/?post_type=product&p=1990"},"modified":"2025-04-24T14:05:46","modified_gmt":"2025-04-24T06:05:46","slug":"class-k12-dn500-ductile-iron-pipe-suppliers","status":"publish","type":"product","link":"https:\/\/www.ductileironsuppliers.com\/ar\/product\/class-k12-dn500-ductile-iron-pipe-suppliers","title":{"rendered":"\u0645\u0648\u0631\u0650\u0651\u062f\u0648 \u0623\u0646\u0627\u0628\u064a\u0628 \u062d\u062f\u064a\u062f \u0627\u0644\u062f\u0643\u062a\u0627\u064a\u0644 \u0645\u0646 \u0627\u0644\u0641\u0626\u0629 K12 DN500"},"content":{"rendered":"

Class K12 DN500 ductile iron pipe offers a 16 bar pressure rating in a 500 mm diameter, with cement-mortar lining and zinc-based external coating for over 100 years of service life. Its push-on K-type joints speed installation, while full compliance with ISO 2531, EN 545\/598, ISO 4179, and ISO 8179 standards ensures global acceptance. Priced at roughly USD 510\u2013546 per ton, it balances upfront cost and long-term savings, making it ideal for municipal, industrial, and irrigation networks.<\/p>\n

Application Scenarios<\/h2>\n

Municipal water-supply systems rely on DN500 K12 pipes to transport drinking water at up to 16 bar, meeting BS EN 545 requirements for safety and flow capacity.
Sewerage and pressure-sewer networks use DN500 lines with EN 598 certification to handle effluent flow while resisting internal corrosion.
Agricultural irrigation and industrial cooling circuits benefit from ductile iron\u2019s high tensile strength (\u2265 270 MPa) and 7 % elongation, ensuring reliable performance under heavy loads.<\/p>\n

Service Life & Durability<\/h2>\n

Modern ductile iron pipe is engineered for 100+ years<\/strong> of service thanks to GGG50 nodular iron, cement-mortar lining (ISO 4179), and zinc-based external coatings (ISO 8179-1\/2).\u00a0
Polyethylene sleeving (per AWWA C105\/A21.5) adds an extra barrier in highly aggressive soils, virtually eliminating pitting and extending lifespan.<\/p>\n

Laying & Connection<\/h2>\n

Push-On K-Type (Tyton) Joints<\/h3>\n

Built-in sockets with SBR\/EPDM gaskets allow push-on assembly<\/strong> with \u00b15\u00b0 angular deflection per joint, cutting installation time by up to 30 %.<\/p>\n

Restrained & Flanged Options<\/h3>\n

For thrust-resistant or seismic applications, restrained-joint variants lock spigot and socket via cast-on lugs (EN 545). Flanged ends (EN 1092-2) ease maintenance in above-ground runs.<\/p>\n

Compliance with International Standards<\/h2>\n
    \n
  • \n

    ISO 2531<\/strong>: Dimensions, pressure tests at 1.5\u00d7 PN16<\/p>\n<\/li>\n

  • \n

    EN 545\/EN 598<\/strong>: Water & sewer pipelines<\/p>\n<\/li>\n

  • \n

    ISO 4179<\/strong>: Cement-mortar lining<\/p>\n<\/li>\n

  • \n

    ISO 8179-1\/2<\/strong>: Zinc\/bitumen and zinc-rich paint coatings<\/p>\n<\/li>\n

  • \n

    ISO 9001<\/strong>: Quality management certified<\/p>\n<\/li>\n<\/ul>\n

    Price Comparison with Other Series<\/h2>\n
    \n

     <\/p>\n

    \n\n\n\n\n\n\n\n\n\n
    Thickness Class<\/th>\nPrice (USD \/ ton)<\/th>\nSource<\/th>\n<\/tr>\n<\/thead>\n
    K7<\/strong><\/td>\n450 \u2013 550<\/td>\nAlibaba<\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n
    K9<\/strong><\/td>\n530 \u2013 550<\/td>\nAlibaba<\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n
    K12<\/strong><\/td>\n510 \u2013 546<\/td>\nAlibaba<\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n
    C25<\/strong><\/td>\n400 \u2013 500<\/td>\nMFG Shop<\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n
    C40<\/strong><\/td>\n600 \u2013 700<\/td>\nMFG Shop<\/span><\/span><\/span><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

    Key Advantages<\/h2>\n
      \n
    • \n

      High Pressure Capacity<\/strong>: PN16 (16 bar) for large networks.<\/p>\n<\/li>\n

    • \n

      Excellent Ductility & Strength<\/strong>: GGG50 iron with Rp0.2 \u2265 270 MPa, A \u2265 7 %.<\/p>\n<\/li>\n

    • \n

      Superior Corrosion Protection<\/strong>: Multi-layer linings\/coatings + sleeving options.<\/p>\n<\/li>\n

    • \n

      Rapid Installation<\/strong>: Push-on joints reduce labor and trench time.<\/p>\n<\/li>\n

    • \n

      Low Life-Cycle Cost<\/strong>: Minimal maintenance over a century, with energy-saving and recyclability benefits.<\/p>\n<\/li>\n<\/ul>\n

      Frequently Asked Questions<\/h2>\n

      Q1: What is the maximum operating pressure?<\/strong>
      Up to 16 bar (PN16), tested at 1.5\u00d7 pressure for safety.<\/p>\n

      Q2: When should I use restrained joints?<\/strong>
      Choose restrained or flanged joints for steep gradients, high thrust zones, or seismic regions.<\/p>\n

      Q3: Are joint gaskets potable-water approved?<\/strong>
      Yes\u2014EPDM\/SBR\/NBR gaskets meet WRAS, NSF 61, and other potable-water standards.<\/p>\n

      Case Studies<\/h2>\n
        \n
      • \n

        N\u00eemes M\u00e9tropole (France):<\/strong> Four DN500 UltraGrip flange adaptors successfully integrated new ductile iron sections around a flow meter, demonstrating reliable joint performance under tight tolerances.<\/p>\n<\/li>\n

      • \n

        U.S. Water Utility (DIPRA):<\/strong> Multiple municipalities report 100+ years of service with ductile iron mains, attributing zero major failures to robust linings and coatings.<\/p>\n<\/li>\n

      • \n

        Cost Savings Analysis:<\/strong> A U.S. study showed that over 50 years, ductile iron pipe can save utilities millions in present-value operating costs due to reduced energy and maintenance.<\/p>\n<\/li>\n<\/ul>\n

        ductile iron pipe dimensions<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
        <\/td>\n<\/td>\n<\/td>\nPipe body weight \uff08kg\/m)<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
        (Inside Diameter)<\/td>\n(Outside Diameter)<\/td>\nSocket Weight<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\nTotal weight of Active Length=6M (kg)<\/td>\nTotal weight of Active Length=5.7M (kg)<\/td>\n<\/tr>\n
        DN(mm)<\/td>\nOD(mm)<\/td>\n\u2248 kg<\/td>\nClass<\/td>\nkg\/m<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\nK8<\/td>\nK9<\/td>\nK10<\/td>\nC class<\/td>\n<\/tr>\n
        80<\/td>\n98<\/td>\n3.40<\/td>\n12.20<\/td>\n12.20<\/td>\n12.20<\/td>\nC40<\/td>\n9.10<\/td>\n77.00<\/td>\n77.00<\/td>\n77.00<\/td>\n58.00<\/td>\n73.00<\/td>\n73.00<\/td>\n73.00<\/td>\n55.00<\/td>\n<\/tr>\n
        100<\/td>\n118<\/td>\n4.30<\/td>\n14.90<\/td>\n15.10<\/td>\n15.10<\/td>\nC40<\/td>\n11.12<\/td>\n93.70<\/td>\n95.00<\/td>\n95.00<\/td>\n71.00<\/td>\n90.00<\/td>\n91.00<\/td>\n90.00<\/td>\n68.00<\/td>\n<\/tr>\n
        125<\/td>\n144<\/td>\n5.70<\/td>\n<\/td>\n18.90<\/td>\n<\/td>\nC40<\/td>\n<\/td>\n<\/td>\n119.00<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
        150<\/td>\n170<\/td>\n7.10<\/td>\n21.80<\/td>\n22.80<\/td>\n22.80<\/td>\nC40<\/td>\n16.48<\/td>\n138.00<\/td>\n144.00<\/td>\n144.00<\/td>\n106.00<\/td>\n132.00<\/td>\n138.00<\/td>\n137.00<\/td>\n101.00<\/td>\n<\/tr>\n
        200<\/td>\n222<\/td>\n10.30<\/td>\n28.70<\/td>\n30.60<\/td>\n30.60<\/td>\nC40<\/td>\n22.62<\/td>\n183.00<\/td>\n194.00<\/td>\n194.00<\/td>\n146.00<\/td>\n174.00<\/td>\n185.00<\/td>\n185.00<\/td>\n139.00<\/td>\n<\/tr>\n
        250<\/td>\n274<\/td>\n14.20<\/td>\n35.60<\/td>\n40.20<\/td>\n44.30<\/td>\nC40<\/td>\n32.63<\/td>\n228.00<\/td>\n255.00<\/td>\n280.00<\/td>\n210.00<\/td>\n218.00<\/td>\n244.00<\/td>\n267.00<\/td>\n200.00<\/td>\n<\/tr>\n
        300<\/td>\n326<\/td>\n18.90<\/td>\n45.30<\/td>\n50.80<\/td>\n56.30<\/td>\nC30<\/td>\n43.90<\/td>\n290.00<\/td>\n323.00<\/td>\n357.00<\/td>\n282.00<\/td>\n278.00<\/td>\n309.00<\/td>\n340.00<\/td>\n269.00<\/td>\n<\/tr>\n
        350<\/td>\n378<\/td>\n23.70<\/td>\n55.90<\/td>\n63.20<\/td>\n69.60<\/td>\nC30<\/td>\n51.88<\/td>\n359.00<\/td>\n403.00<\/td>\n441.00<\/td>\n335.00<\/td>\n343.00<\/td>\n384.00<\/td>\n420.00<\/td>\n319.00<\/td>\n<\/tr>\n
        400<\/td>\n429<\/td>\n29.50<\/td>\n67.30<\/td>\n75.50<\/td>\n83.70<\/td>\nC30<\/td>\n60.78<\/td>\n433.00<\/td>\n482.00<\/td>\n532.00<\/td>\n394.00<\/td>\n414.00<\/td>\n460.00<\/td>\n506.00<\/td>\n376.00<\/td>\n<\/tr>\n
        450<\/td>\n480<\/td>\n38.30<\/td>\n80.00<\/td>\n89.30<\/td>\n99.00<\/td>\nC30<\/td>\n73.30<\/td>\n515.00<\/td>\n575.00<\/td>\n632.00<\/td>\n472.00<\/td>\n492.00<\/td>\n550.00<\/td>\n597.00<\/td>\n450.00<\/td>\n<\/tr>\n
        500<\/td>\n532<\/td>\n42.80<\/td>\n92.80<\/td>\n104.30<\/td>\n115.60<\/td>\nC30<\/td>\n87.20<\/td>\n600.00<\/td>\n669.00<\/td>\n736.00<\/td>\n566.00<\/td>\n572.00<\/td>\n638.00<\/td>\n702.00<\/td>\n540.00<\/td>\n<\/tr>\n
        600<\/td>\n635<\/td>\n59.30<\/td>\n122.00<\/td>\n137.30<\/td>\n152.00<\/td>\nC30<\/td>\n120.62<\/td>\n791.00<\/td>\n882.00<\/td>\n971.00<\/td>\n783.00<\/td>\n755.00<\/td>\n842.00<\/td>\n926.00<\/td>\n747.00<\/td>\n<\/tr>\n
        700<\/td>\n738<\/td>\n79.10<\/td>\n155.00<\/td>\n173.90<\/td>\n193.00<\/td>\nC25<\/td>\n142.15<\/td>\n1009.00<\/td>\n1123.00<\/td>\n1237.00<\/td>\n932.00<\/td>\n963.00<\/td>\n1071.00<\/td>\n1179.00<\/td>\n889.00<\/td>\n<\/tr>\n
        800<\/td>\n842<\/td>\n102.60<\/td>\n192.00<\/td>\n215.20<\/td>\n239.00<\/td>\nC25<\/td>\n177.07<\/td>\n1255.00<\/td>\n1394.00<\/td>\n1537.00<\/td>\n1165.00<\/td>\n1197.00<\/td>\n1330.00<\/td>\n1465.00<\/td>\n1112.00<\/td>\n<\/tr>\n
        900<\/td>\n945<\/td>\n129.60<\/td>\n232.00<\/td>\n260.20<\/td>\n289.00<\/td>\nC25<\/td>\n197.68<\/td>\n1521.00<\/td>\n1691.00<\/td>\n1863.00<\/td>\n1446.00<\/td>\n1452.00<\/td>\n1613.00<\/td>\n1777.00<\/td>\n1257.00<\/td>\n<\/tr>\n
        1000<\/td>\n1048<\/td>\n161.30<\/td>\n275.00<\/td>\n309.30<\/td>\n343.20<\/td>\nC25<\/td>\n266.28<\/td>\n1811.00<\/td>\n2017.00<\/td>\n2221.00<\/td>\n1759.00<\/td>\n1729.00<\/td>\n1925.00<\/td>\n2118.00<\/td>\n1679.00<\/td>\n<\/tr>\n
        1100<\/td>\n1152<\/td>\n194.70<\/td>\n<\/td>\n362.80<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n2372.00<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/tr>\n
        1200<\/td>\n1255<\/td>\n237.70<\/td>\n374.00<\/td>\n420.10<\/td>\n466.10<\/td>\nC25<\/td>\n373.88<\/td>\n2482.00<\/td>\n2758.00<\/td>\n3034.00<\/td>\n2481.00<\/td>\n2370.00<\/td>\n2632.00<\/td>\n2894.00<\/td>\n2369.00<\/td>\n<\/tr>\n
        1400<\/td>\n1462<\/td>\n279.30<\/td>\n<\/td>\n547.20<\/td>\n<\/td>\n<\/td>\n<\/td>\n<\/td>\n3563.00<\/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\n\n\n\n\n\n
        Mechanical Property<\/td>\n<\/tr>\n
        Nominal Diameter<\/td>\nHydraulic test<\/td>\nTensile strength<\/td>\nElogation<\/td>\nYield strength<\/td>\nBending strength<\/td>\nBrinell hardness<\/td>\nThickness of cement lining<\/td>\n<\/tr>\n
        DN(MM)<\/td>\nMpa<\/td>\nMpa<\/td>\n%<\/td>\nMpa<\/td>\nMpa<\/td>\nHB<\/td>\nmm<\/td>\n<\/tr>\n
        DN80-DN300<\/td>\n5<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n3<\/td>\n<\/tr>\n
        DN350-DN600<\/td>\n4<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n5<\/td>\n<\/tr>\n
        DN700-DN1000<\/td>\n3.2<\/td>\n\u2265420<\/td>\n\u226510<\/td>\n\u2265300<\/td>\n\u2265590<\/td>\n\u2264230<\/td>\n6<\/td>\n<\/tr>\n
        DN1100-DN1600<\/td>\n2.5<\/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":1991,"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-1990","product","type-product","status-publish","has-post-thumbnail","hentry","products-ductile-iron-pipes"],"acf":[],"yoast_head":"\nClass K12 DN500 ductile iron pipe suppliers - Jingang LuoKaiwei<\/title>\n<meta name=\"description\" content=\"Discover Class K12 DN500 ductile iron pipe: ISO 2531\/EN 545 certified, PN 16, 100+ year life, K-type joints, cement-mortar lining, zinc coatings, and competitive pricing at USD 510\u2013546\/ton. 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