{"id":18615,"date":"2025-09-28T10:59:31","date_gmt":"2025-09-28T10:59:31","guid":{"rendered":"https:\/\/oudianvalve.com\/?p=18615"},"modified":"2025-09-28T10:59:31","modified_gmt":"2025-09-28T10:59:31","slug":"forged-steel-y-strainer-vs-cast-iron-y-strainer-which-is-better","status":"publish","type":"post","link":"https:\/\/oudianvalve.com\/de\/2025\/09\/forged-steel-y-strainer-vs-cast-iron-y-strainer-which-is-better\/","title":{"rendered":"Forged Steel Y Strainer vs. Cast Iron Y Strainer: Which Is Better?"},"content":{"rendered":"
Y strainers a<\/a>re the unsung heroes of fluid systems\u2014catching debris to protect pumps, valves, and meters from costly damage. But when choosing between <\/span>forged steel<\/span> and <\/span>cast iron<\/span> models, the decision hinges on more than just price. These two materials deliver vastly different performance, durability, and application fit. Below is a head-to-head comparison to help you pick the right one for your system.<\/span>\u200b<\/span><\/span><\/div>\n
First: What\u2019s a Y Strainer, and Why Material Matters<\/span><\/span>\u200b<\/span><\/div>\n
A Y strainer gets its name from its Y-shaped body, which directs fluid through a mesh screen that traps particles (sand, rust, scale) while allowing clean fluid to pass. The body material is make-or-break: it dictates how the strainer handles pressure, corrosion, temperature, and physical stress. Forged steel and cast iron represent two ends of the “strength vs. cost” spectrum\u2014let\u2019s break down their core traits first.<\/span><\/span>\u200b<\/span><\/div>\n
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Material Trait<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Forged Steel Y Strainer<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Cast Iron Y Strainer<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Manufacturing Process<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Heated steel is hammered\/pressed into shape (aligns metal grains for strength).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Molten iron is poured into molds (random grain structure).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Tensile Strength<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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60,000\u2013100,000 psi (resists stretching\/fracture).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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20,000\u201340,000 psi (brittle; prone to cracking under impact).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Korrosionsbest\u00e4ndigkeit<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Moderate (carbon steel) to excellent (stainless steel forgings).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Poor (rusts easily; requires coatings like paint or epoxy).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Gewicht<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Denser but more compact (thinner walls for same strength).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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Bulkier (thicker walls needed for structural integrity).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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\u200b<\/span><\/div>\n

1. Performance: Pressure & Temperature Limits<\/span><\/span>\u200b<\/span><\/div>\n
For industrial systems, performance starts with handling operating conditions without failure. Here\u2019s how the two stack up:<\/span><\/span>\u200b<\/span><\/div>\n
Pressure Rating<\/span><\/span>\u200b<\/span><\/div>\n
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  • Forged Steel<\/span><\/span>: Thrives in high-pressure environments. Standard ratings range from <\/span><\/span>ANSI Class 150 to 2500<\/span><\/span>, with some models handling up to 10,000 psi (critical for oil\/gas pipelines or hydraulic systems). The forged process eliminates internal voids, so it won\u2019t burst under extreme pressure.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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    • Cast Iron<\/span><\/span>: Limited to low-to-moderate pressure. Max rating is typically <\/span><\/span>ANSI Class 125\u2013150<\/span><\/span> (up to ~285 psi). Casting often leaves tiny pores, which expand and leak at higher pressures.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
      Winner<\/span><\/span>: Forged steel\u2014non-negotiable for high-pressure systems.<\/span><\/span>\u200b<\/span><\/div>\n
      Temperature Tolerance<\/span><\/span>\u200b<\/span><\/div>\n
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      • Forged Steel<\/span><\/span>: Handles extreme heat and cold. Carbon steel forgings work from -20\u00b0F to 1,000\u00b0F (-29\u00b0C to 538\u00b0C); stainless steel forgings extend that to -320\u00b0F to 1,500\u00b0F (-196\u00b0C to 816\u00b0C) (ideal for steam or cryogenic applications).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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        • Cast Iron<\/span><\/span>: Fragile at temperature extremes. Safe range is ~32\u00b0F to 400\u00b0F (0\u00b0C to 204\u00b0C). Below freezing, it becomes brittle and cracks; above 400\u00b0F, it loses structural strength.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
          Winner<\/span><\/span>: Forged steel\u2014far more versatile for harsh temperature conditions.<\/span><\/span>\u200b<\/span><\/div>\n
          2. Durability: Longevity & Maintenance Needs<\/span><\/span>\u200b<\/span><\/div>\n
          A strainer\u2019s job is to catch debris, so it needs to withstand constant fluid flow and occasional cleaning. Durability directly impacts total cost of ownership (TCO).<\/span><\/span>\u200b<\/span><\/div>\n
          Resistance to Wear & Damage<\/span><\/span>\u200b<\/span><\/div>\n
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          • Forged Steel<\/span><\/span>: Resilient against impact and erosion. The dense, grain-aligned structure stands up to abrasive fluids (e.g., slurries with sand) and physical bumps during maintenance. Stainless steel forgings resist corrosion from chemicals or saltwater, eliminating rust-related failures.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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            • Cast Iron<\/span><\/span>: Prone to cracking and rust. Its brittle nature means a accidental bump with a wrench can cause a fracture. Without coatings, it rusts rapidly in water or humid environments\u2014rust flakes can even clog the screen, defeating the strainer\u2019s purpose.<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
              Maintenance Requirements<\/span><\/span>\u200b<\/span><\/div>\n
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              • Forged Steel<\/span><\/span>: Low maintenance. Stainless steel models need only occasional screen cleaning; carbon steel versions may require a yearly coat of anti-rust paint. The robust body rarely needs replacement (service life: 10\u201320+ years).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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                • Cast Iron<\/span><\/span>: High maintenance. Coatings chip off over time, requiring frequent repainting. Rust buildup inside the body may force early replacement (service life: 3\u20138 years, depending on environment).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                  Winner<\/span><\/span>: Forged steel\u2014lower long-term maintenance costs and longer lifespan.<\/span><\/span>\u200b<\/span><\/div>\n
                  3. Application Fit: Which Works Where?<\/span><\/span>\u200b<\/span><\/div>\n
                  Neither material is “better” universally\u2014they\u2019re designed for different use cases. Here\u2019s how to match them to your system:<\/span><\/span>\u200b<\/span><\/div>\n
                  Forged Steel Y Strainers Shine In:<\/span><\/span>\u200b<\/span><\/div>\n
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                  • Oil & Gas<\/span><\/span>: High-pressure wellheads, pipeline transmission, and refinery processing (handles crude oil, natural gas, and corrosive chemicals).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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                    • Power Generation<\/span><\/span>: Steam systems (high temperature) and turbine cooling loops (high pressure).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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                      • Chemische Verarbeitung<\/span><\/span>: Corrosive fluid lines (stainless steel forgings resist acids\/bases).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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                        • Marine\/Offshore<\/span><\/span>: Saltwater systems (stainless steel avoids rust from seawater).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                          Cast Iron Y Strainers Are Suitable For:<\/span><\/span>\u200b<\/span><\/div>\n
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                          • Municipal Water<\/span><\/span>: Low-pressure distribution lines (non-corrosive, ambient temperature).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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                            • HVAC<\/span><\/span>: Chilled water or hot water loops (temperatures below 400\u00b0F).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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                              • Light Industrial<\/span><\/span>: Low-pressure, non-abrasive fluids (e.g., detergent manufacturing, where corrosion risk is low).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
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                                • Residential\/Commercial<\/span><\/span>: Building plumbing (simple, low-cost protection for pumps).<\/span><\/span>\u200b<\/span><\/li>\n<\/ul>\n<\/div>\n
                                  4. Cost: Upfront vs. Lifecycle Value<\/span><\/span>\u200b<\/span><\/div>\n
                                  Cost is often the first consideration\u2014but don\u2019t let upfront price fool you. Let\u2019s compare TCO for a 2-inch ANSI Class 150 strainer:<\/span><\/span>\u200b<\/span><\/div>\n
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                                  \u200b<\/span><\/p>\n
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                                  Cost Factor<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Forged Steel (Carbon Steel)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Cast Iron<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Upfront Price<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  \u200b<\/span><\/span><\/p>\n
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                                  300\u2013<\/span><\/span><\/span><\/span><\/div>\n
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                                  600<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n

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                                  \u200b<\/span><\/span><\/p>\n
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                                  100\u2013<\/span><\/span><\/span><\/span><\/div>\n
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                                  250 (50\u201360% cheaper initially)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n

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                                  Service Life<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  15 years<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  5 years<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Annual Maintenance Cost<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  $20 (screen cleaning)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  $50 (screen cleaning + repainting)<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  15-Year TCO<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  ~<\/span>\u200b<\/span><\/span><\/p>\n
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                                  300<\/span>+<\/span><\/span>(<\/span><\/span><\/span><\/span><\/div>\n
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                                  20\u00d715) = $600<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n

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                                  (<\/span>\u200b<\/span><\/span><\/p>\n
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                                  200<\/span>\u00d7<\/span><\/span>3<\/span>re<\/span>pl<\/span>a<\/span>ce<\/span>m<\/span>e<\/span>n<\/span>t<\/span>s<\/span>)<\/span>+<\/span><\/span>(<\/span><\/span><\/span><\/span><\/div>\n
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                                  50\u00d715) = $750<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n

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                                  \u200b<\/span><\/div>\n

                                  Key Insight<\/span><\/span>: Cast iron is cheaper upfront, but forged steel saves money long-term. For high-stakes systems, the cost of downtime from a cast iron failure (e.g., a cracked body leaking fluid) can be $10,000+\u2014making forged steel the more cost-effective choice.<\/span><\/span>\u200b<\/span><\/div>\n
                                  The Final Verdict: Which Should You Choose?<\/span><\/span>\u200b<\/span><\/div>\n
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                                  \u200b<\/span><\/p>\n
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                                  \n\n\n\n<\/colgroup>\n\n\n\n\n\n\n
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                                  Choose Forged Steel If:<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Choose Cast Iron If:<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Your system operates at >150 psi or extreme temps.<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Your system is low-pressure (\u2264150 psi) and ambient temp.<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  You\u2019re handling corrosive\/abrasive fluids.<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  You\u2019re using clean, non-corrosive fluids (e.g., water).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  You want long-term durability (10+ years).<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  You need a budget-friendly, temporary solution.<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Downtime or failure would be costly.<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  Maintenance and replacement are easy\/cheap.<\/span>\u200b<\/span><\/div>\n<\/div>\n<\/div>\n
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                                  <\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

                                  \u200b<\/span><\/div>\n

                                  Closing Thought<\/span><\/span>\u200b<\/span><\/div>\n
                                  Cast iron Y strainers have their place in simple, low-stakes systems\u2014but they\u2019re a risky choice for industrial applications. Forged steel delivers the strength, versatility, and longevity that keep critical systems running. If you\u2019re tempted by cast iron\u2019s low upfront cost, ask yourself: <\/span><\/span>Can I afford the downtime if it cracks or rusts?<\/span><\/span> For most industrial buyers, the answer is no\u2014making forged steel the clear winner<\/span><\/span><\/div>","protected":false},"excerpt":{"rendered":"

                                  Y strainers are the unsung heroes of fluid systems\u2014catching debris to protect pumps, valves, and meters from costly damage. But when choosing between forged steel and cast iron models, the decision hinges on more than just price. These two materials deliver vastly different performance, durability, and application fit. Below is a head-to-head comparison to help […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-18615","post","type-post","status-publish","format-standard","hentry","category-industry-news"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/posts\/18615","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/comments?post=18615"}],"version-history":[{"count":1,"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/posts\/18615\/revisions"}],"predecessor-version":[{"id":18616,"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/posts\/18615\/revisions\/18616"}],"wp:attachment":[{"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/media?parent=18615"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/categories?post=18615"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/oudianvalve.com\/de\/wp-json\/wp\/v2\/tags?post=18615"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}