{"title":"Black Steel Fittings - Plugs","description":"\u003cp\u003eComplete your gas, fire suppression, or industrial piping system with \u003cstrong\u003eblack steel malleable iron fittings\u003c\/strong\u003e — the standard choice wherever threaded steel pipe connections are required. Built tough for high-pressure and high-temperature applications, black steel fittings are a staple on every commercial and residential gas line rough-in.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Are Black Steel Fittings?\u003c\/h3\u003e\n\u003cp\u003eBlack steel fittings are malleable iron threaded fittings with a black oxide finish (no galvanizing). They are designed for use with black steel pipe on \u003cstrong\u003enatural gas, propane, fire sprinkler, steam, and compressed air systems\u003c\/strong\u003e. The black finish distinguishes them from galvanized fittings, which are not suitable for gas service.\u003c\/p\u003e\n\n\u003ch3\u003eFitting Types Available\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eElbows\u003c\/strong\u003e — 90° and 45° in street and standard configurations\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTees\u003c\/strong\u003e — straight and reducing tees for branch connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCouplings\u003c\/strong\u003e — standard and reducing for inline connections\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNipples\u003c\/strong\u003e — close, short, and long in common sizes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaps \u0026amp; Plugs\u003c\/strong\u003e — for capping open ends and pressure testing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnions\u003c\/strong\u003e — for connections that may need to be broken and remade\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushings\u003c\/strong\u003e — for reducing threaded connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCommon Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNatural gas and propane distribution lines\u003c\/li\u003e\n\u003cli\u003eFire suppression and sprinkler systems\u003c\/li\u003e\n\u003cli\u003eSteam and high-temperature piping\u003c\/li\u003e\n\u003cli\u003eCompressed air systems\u003c\/li\u003e\n\u003cli\u003eIndustrial process piping\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Malleable iron with black oxide finish\u003c\/li\u003e\n\u003cli\u003eThread standard: NPT (National Pipe Thread)\u003c\/li\u003e\n\u003cli\u003ePressure rated: 150 lb class (standard) — suitable for most gas and steam applications\u003c\/li\u003e\n\u003cli\u003eSizes: 1\/4\" through 2\" (common stock sizes)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNot for use with galvanized pipe on gas lines\u003c\/strong\u003e — always use black fittings with black pipe for gas service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eSame-day pickup available at AC Construction Depot in Pineville, NC.\u003c\/strong\u003e Serving plumbers, pipefitters, and contractors across the greater Charlotte area. Call us at \u003cstrong\u003e704-835-1086\u003c\/strong\u003e to confirm availability on specific sizes and configurations before your trip.\u003c\/p\u003e","products":[{"product_id":"southland-black-iron-plug-2","title":"Southland 黑铁插头 - 2 英寸","description":"\u003cp\u003eSouthland 黑铁插头 - 2 英寸\u003c\/p\u003e\n\n\u003cp\u003e型号：521-808HN\u003c\/p\u003e\n\n\u003cp\u003e库存编号：ACPI15919418\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e盖：\u003c\/strong\u003e D8-1\u003c\/p\u003e","brand":"B\u0026K\/MUELLER INDUSTRIES","offers":[{"title":"Default Title","offer_id":47451944255782,"sku":"ACPI15919418","price":8.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4626\/1542\/files\/15911020_8f16fd55-cd4a-4481-bf84-7c3bff4eb93f.jpg?v=1714070648"},{"product_id":"southland-black-iron-plug-1","title":"Southland 黑铁插头 - 1 英寸","description":"\u003cp\u003eSouthland 黑铁插头 - 1 英寸\u003c\/p\u003e\n\n\u003cp\u003e型号：521-805HN\u003c\/p\u003e\n\n\u003cp\u003e库存编号：ACPI15919384\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e盖：\u003c\/strong\u003e D9-2\u003c\/p\u003e","brand":"B\u0026K\/MUELLER INDUSTRIES","offers":[{"title":"Default Title","offer_id":47451944321318,"sku":"ACPI15919384","price":3.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4626\/1542\/files\/15911020_8cc8a795-e54e-442b-972c-a2b7c29d55c3.jpg?v=1714064897"},{"product_id":"southland-black-iron-plug-3-4","title":"Southland 黑铁插头 - 3\/4\"","description":"\u003cp\u003e Southland 黑铁插头 - 3\/4\"\u003c\/p\u003e\n\n\u003cp\u003e型号：521-804HN\u003c\/p\u003e\n\n\u003cp\u003e库存编号：ACPI15919376\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e盖：\u003c\/strong\u003e D9-3\u003c\/p\u003e","brand":"B\u0026K\/MUELLER INDUSTRIES","offers":[{"title":"Default Title","offer_id":47451944386854,"sku":"ACPI15919376","price":3.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4626\/1542\/files\/15911020_fd9164b3-4f5e-41bb-ba52-08780dfb8fb6.jpg?v=1714066329"},{"product_id":"southland-black-iron-plug-1-2","title":"Southland 黑铁插头 - 1\/2\"","description":"\u003cp\u003e B\u0026amp;K\/Mueller Southland 黑铁插头 - 1\/2 英寸\u003c\/p\u003e\n\n \u003cp\u003e型号：521-803HN\u003c\/p\u003e\n\n\u003cp\u003e库存编号：ACPI15919368\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e盖：\u003c\/strong\u003e D9-4\u003c\/p\u003e","brand":"B\u0026K\/MUELLER INDUSTRIES","offers":[{"title":"Default Title","offer_id":47451944419622,"sku":"ACPI15919368","price":2.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4626\/1542\/files\/15911020_2a9b16be-74a0-42fa-821a-224a2ed9234c.jpg?v=1714066933"},{"product_id":"southland-black-iron-plug-1-1-2","title":"Southland 黑铁插头 - 1-1\/2\"","description":"\u003cp\u003e Southland 黑铁插头 - 1-1\/2\"\u003c\/p\u003e\n\n\u003cp\u003e型号：521-807HN\u003c\/p\u003e\n\n\u003cp\u003e库存编号：ACPI15919400\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e盖：\u003c\/strong\u003e D8-2\u003c\/p\u003e","brand":"B\u0026K\/MUELLER INDUSTRIES","offers":[{"title":"Default Title","offer_id":47451950416166,"sku":"ACPI15919400","price":5.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4626\/1542\/files\/15911020_1e6a2f07-23ac-4f56-96f3-5e10020f85b4.jpg?v=1714071689"},{"product_id":"southland-black-iron-plug-1-1-4","title":"Southland 黑铁插头 - 1-1\/4\"","description":"\u003cp\u003e Southland 黑铁插头 - 1-1\/4\"\u003c\/p\u003e\n\n\u003cp\u003e型号：521-806HN\u003c\/p\u003e\n\n\u003cp\u003e库存编号：ACPI15919392\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003e盖：\u003c\/strong\u003e D9-1\u003c\/p\u003e","brand":"B\u0026K\/MUELLER INDUSTRIES","offers":[{"title":"Default Title","offer_id":47451950481702,"sku":"ACPI15919392","price":4.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4626\/1542\/files\/15911020.jpg?v=1714064133"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0796\/4626\/1542\/collections\/1591740_6784ff3d-17cf-49f7-984a-dbe2fccb33cc.jpg?v=1780763655","url":"https:\/\/acconstructiondepot.com\/zh\/collections\/black-steel-fittings-plugs.oembed","provider":"AC Construction Depot","version":"1.0","type":"link"}