{"id":3638,"date":"2026-04-24T08:48:22","date_gmt":"2026-04-24T08:48:22","guid":{"rendered":"https:\/\/bbpmfg.com\/?page_id=3638"},"modified":"2026-04-24T08:58:59","modified_gmt":"2026-04-24T08:58:59","slug":"ss-grade-selector","status":"publish","type":"page","link":"https:\/\/bbpmfg.com\/es\/chemical-pumps\/stainless-steel-chemical-pump\/ss-grade-selector\/","title":{"rendered":"selector de grado SS"},"content":{"rendered":"<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-38a8c4a\" data-block-id=\"38a8c4a\"><style>.stk-38a8c4a {margin-bottom:0px !important;}<\/style><div class=\"stk-row stk-inner-blocks has-text-align-center stk-block-content stk-content-align stk-38a8c4a-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-6dd2792\" data-v=\"4\" data-block-id=\"6dd2792\"><style>.stk-6dd2792-container{margin-top:var(--stk--preset--spacing--50, 1.5rem) !important;margin-right:var(--stk--preset--spacing--50, 1.5rem) !important;margin-bottom:var(--stk--preset--spacing--50, 1.5rem) !important;margin-left:var(--stk--preset--spacing--50, 1.5rem) !important;}<\/style><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-6dd2792-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-6dd2792-inner-blocks\"><div class=\"ct-breadcrumbs\" data-source=\"rankmath\" ><nav aria-label=\"pan rallado\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Hogar<\/span><\/p><\/nav><\/div><\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-stackable-columns alignfull stk-block-columns stk-block stk-353918c\" data-block-id=\"353918c\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-content-align stk-353918c-column alignfull\">\n<div class=\"wp-block-stackable-column stk-block-column stk-column stk-block stk-5d23446\" data-v=\"4\" data-block-id=\"5d23446\"><div class=\"stk-column-wrapper stk-block-column__content stk-container stk-5d23446-container stk--no-background stk--no-padding\"><div class=\"stk-block-content stk-inner-blocks stk-5d23446-inner-blocks\">\n<style>\n.bbpss-tool { --bbpss-primary: #1848C0; --bbpss-accent: #F0C018; --bbpss-border: #e5e7eb; --bbpss-bg-soft: #f7f9fc; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; color: #1a1f2e; line-height: 1.6; max-width: 760px; margin: 0 auto; padding: 20px; background: #fff; box-sizing: border-box; }\n.bbpss-tool *, .bbpss-tool *::before, .bbpss-tool *::after { box-sizing: border-box; }\n.bbpss-tool h1 { font-size: 1.6rem; color: var(--bbpss-primary); margin: 0 0 8px; }\n.bbpss-sub { color: #6b7280; margin-bottom: 24px; }\n.bbpss-card { background: #fff; border: 1px solid var(--bbpss-border); border-radius: 10px; padding: 22px; margin: 16px 0; box-shadow: 0 2px 10px rgba(24,72,192,0.06); }\n.bbpss-tool label { display: block; font-weight: 600; margin: 14px 0 6px; font-size: 0.95rem; }\n.bbpss-tool select, .bbpss-tool input { width: 100%; padding: 10px 12px; font-size: 1rem; border: 1px solid var(--bbpss-border); border-radius: 6px; font-family: inherit; }\n.bbpss-btn { background: var(--bbpss-primary); color: #fff; padding: 12px 24px; border: none; border-radius: 6px; font-weight: 600; cursor: pointer; font-size: 1rem; margin-top: 16px; }\n.bbpss-btn:hover { opacity: 0.9; }\n.bbpss-result { background: #fdf7e0; border: 2px solid var(--bbpss-accent); padding: 20px; border-radius: 10px; margin-top: 20px; display: none; }\n.bbpss-result.bbpss-active { display: block; }\n.bbpss-grade-title { font-size: 1.3rem; font-weight: 700; color: var(--bbpss-primary); margin: 0 0 8px; }\n.bbpss-meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin: 12px 0; }\n.bbpss-meta-item { background: #fff; border-left: 3px solid var(--bbpss-primary); padding: 8px 12px; font-size: 0.92rem; }\n.bbpss-meta-item strong { display: block; font-size: 0.75rem; color: #6b7280; text-transform: uppercase; }\n.bbpss-cta-row { margin-top: 20px; display: flex; gap: 12px; flex-wrap: wrap; }\n.bbpss-cta-primary { background: var(--bbpss-primary); color: #fff; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 600; }\n.bbpss-cta-accent { background: var(--bbpss-accent); color: #1a1f2e; padding: 10px 20px; text-decoration: none; border-radius: 6px; font-weight: 600; }\n.bbpss-disclaimer { font-size: 0.85rem; color: #6b7280; margin-top: 16px; padding: 12px; background: var(--bbpss-bg-soft); border-radius: 6px; }\n<\/style>\n<div class=\"bbpss-tool\">\n  <h1>Selector de grado SS para servicio qu\u00edmico<\/h1>\n  <p class=\"bbpss-sub\">Elija la aleaci\u00f3n adecuada en 30 segundos. Ingrese sus condiciones de proceso y le recomendaremos 304, 316, 316L, Duplex 2205 o Super-Duplex 2507.<\/p>\n\n  <div class=\"bbpss-card\">\n    <label for=\"bbpssChemical\">Fluido primario<\/label>\n    <select id=\"bbpssChemical\">\n      <option value=\"\">\u00ab elige fluido \u00ab<\/option>\n      <option value=\"fresh_water\">Agua dulce \/ agua CIP<\/option>\n      <option value=\"dilute_sulfuric\">\u00c1cido sulf\u00farico \u00ab diluido (&lt;20%)<\/option>\n      <option value=\"conc_sulfuric\">\u00c1cido sulf\u00farico \u00ab concentrado (20-98%)<\/option>\n      <option value=\"sodium_hypochlorite\">Hipoclorito de sodio (lej\u00eda)<\/option>\n      <option value=\"caustic\">Hidr\u00f3xido de sodio (c\u00e1ustico)<\/option>\n      <option value=\"hydrochloric\">\u00c1cido clorh\u00eddrico<\/option>\n      <option value=\"phosphoric\">\u00c1cido fosf\u00f3rico<\/option>\n      <option value=\"seawater\">Agua de mar\/agua salobre<\/option>\n      <option value=\"food_cip\">C\u00e1ustica CIP de calidad alimentaria<\/option>\n      <option value=\"pharma\">Wfi farmac\u00e9utico\/tamp\u00f3n<\/option>\n      <option value=\"solvent\">Solvente org\u00e1nico<\/option>\n      <option value=\"hf\">\u00c1cido fluorh\u00eddrico (&gt;40%)<\/option>\n    <\/select>\n\n    <label for=\"bbpssChloride\">Contenido de cloruro (ppm)<\/label>\n    <select id=\"bbpssChloride\">\n      <option value=\"low\">Bajo (&lt; 50 ppm)<\/option>\n      <option value=\"mod\">Moderado (50 \u00ab500 ppm)<\/option>\n      <option value=\"high\">Alto (500 \u00ab5.000 ppm)<\/option>\n      <option value=\"very_high\">Muy alto (&gt; 5.000 ppm, salobre\/agua de mar)<\/option>\n    <\/select>\n\n    <label for=\"bbpssTemp\">Temperatura de funcionamiento (\u00b0C)<\/label>\n    <input type=\"number\" id=\"bbpssTemp\" value=\"40\" min=\"-40\" max=\"250\">\n\n    <label for=\"bbpssWelded\">\u00bfSe requiere fabricaci\u00f3n soldada?<\/label>\n    <select id=\"bbpssWelded\">\n      <option value=\"no\">No \u00ab ensamblaje fundido o mecanizado<\/option>\n      <option value=\"yes\">S\u00ed \u00ab construcci\u00f3n soldada importante<\/option>\n    <\/select>\n\n    <button class=\"bbpss-btn\" onclick=\"bbpssRunSelector()\">Obtenga la calificaci\u00f3n recomendada \u2192<\/button>\n  <\/div>\n\n  <div class=\"bbpss-result\" id=\"bbpssResult\">\n    <div class=\"bbpss-grade-title\" id=\"bbpssGradeTitle\"><\/div>\n    <p id=\"bbpssGradeRationale\"><\/p>\n    <div class=\"bbpss-meta\">\n      <div class=\"bbpss-meta-item\"><strong>PREN<\/strong><span id=\"bbpssPrenValue\"><\/span><\/div>\n      <div class=\"bbpss-meta-item\"><strong>\u00cdndice de Costos (304=1,0)<\/strong><span id=\"bbpssCostValue\"><\/span><\/div>\n      <div class=\"bbpss-meta-item\"><strong>Vida t\u00edpica<\/strong><span id=\"bbpssLifeValue\"><\/span><\/div>\n    <\/div>\n    <p id=\"bbpssGradeCaveat\" style=\"font-size: 0.9rem; color: #6b7280;\"><\/p>\n    <div class=\"bbpss-cta-row\">\n      <a href=\"#ct-popup-820\" class=\"bbpss-cta-primary\">Solicitar cotizaci\u00f3n para este grado \u2192<\/a>\n      <a href=\"#ct-popup-820\" class=\"bbpss-cta-accent\">Habla con un ingeniero<\/a>\n    <\/div>\n  <\/div>\n\n  <div class=\"bbpss-disclaimer\">\n    <strong>Descargo de responsabilidad:<\/strong> Este selector proporciona un punto de partida basado en las condiciones de servicio m\u00e1s comunes. Una especificaci\u00f3n final debe tener en cuenta los ciclos de concentraci\u00f3n de cloruro, el contenido de sulfuro (si corresponde), el ox\u00edgeno disuelto, los extremos de pH y los s\u00f3lidos abrasivos. Los ingenieros de aplicaciones de BBP estar\u00e1n encantados de revisar todos los par\u00e1metros de su proceso antes de cotizarlos.\n  <\/div>\n<\/div>\n<script>\nfunction bbpssRunSelector() {\n  var chem = document.getElementById('bbpssChemical').value;\n  var cl = document.getElementById('bbpssChloride').value;\n  var tempVal = parseInt(document.getElementById('bbpssTemp').value, 10) || 40;\n  var welded = document.getElementById('bbpssWelded').value;\n  var r = document.getElementById('bbpssResult');\n  var gt = document.getElementById('bbpssGradeTitle');\n  var gr = document.getElementById('bbpssGradeRationale');\n  var pren = document.getElementById('bbpssPrenValue');\n  var cost = document.getElementById('bbpssCostValue');\n  var life = document.getElementById('bbpssLifeValue');\n  var cav = document.getElementById('bbpssGradeCaveat');\n\n  if (!chem) { alert('Please select the primary fluid.'); return; }\n\n  var grade = '', rationale = '', prenVal = '', costVal = '', lifeVal = '', caveat = '';\n  var matched = false;\n\n  \/\/ Case 1: Hydrofluoric acid \u2014 not suitable for any SS\n  if (chem === 'hf') {\n    grade = '\u26a0 Stainless Steel NOT recommended \u2014 use PFA- or PTFE-lined';\n    rationale = 'Hydrofluoric acid above 40% concentration attacks every common stainless grade including Super-Duplex. Specify a fluoropolymer-lined pump from a specialist supplier instead.';\n    prenVal = 'N\/A'; costVal = 'N\/A'; lifeVal = 'N\/A';\n    caveat = 'BBP does not oversell SS into HF service. We can recommend qualified lined-pump partners on request.';\n    matched = true;\n  }\n\n  \/\/ Case 2: Fresh water \/ food CIP \/ pharma service\n  if (!matched) {\n    if (chem === 'fresh_water' || chem === 'food_cip' || chem === 'pharma') {\n      var fitFor304 = false;\n      if (cl === 'low') {\n        if (welded === 'no') {\n          if (tempVal < 80) {\n            fitFor304 = true;\n          }\n        }\n      }\n      if (fitFor304) {\n        grade = 'SS304 \u2014 standard austenitic';\n        rationale = 'Low chloride and non-welded service is a textbook fit for 304. Step up only if you have a plant-standardisation requirement for 316.';\n        prenVal = '18-19'; costVal = '1.0 (baseline)'; lifeVal = '5-10+ yrs';\n      } else {\n        grade = 'SS316L \u2014 low-carbon 316';\n        rationale = 'Food, pharma, and hot CIP service almost always specifies 316L for weld integrity and hygienic cleanability.';\n        prenVal = '24-26'; costVal = '1.25-1.35'; lifeVal = '8-15 yrs';\n      }\n      matched = true;\n    }\n  }\n\n  \/\/ Case 3: Seawater or very high chloride\n  if (!matched) {\n    var seawaterLike = false;\n    if (chem === 'seawater') { seawaterLike = true; }\n    if (cl === 'very_high') { seawaterLike = true; }\n    if (seawaterLike) {\n      grade = 'Duplex 2205 (or Super-Duplex 2507 for severe service)';\n      rationale = 'High chloride loads drive pitting and stress-corrosion cracking in 316. Duplex 2205 delivers roughly double the yield strength of 316L and a PREN of 34-38; upgrade to 2507 if dissolved oxygen or temperature exceed Duplex limits.';\n      prenVal = '34-38 (2205) \/ 41+ (2507)'; costVal = '1.5-1.8 (2205) \/ 2.2-2.8 (2507)'; lifeVal = '10-20+ yrs';\n      caveat = 'NACE MR0175 compliance is available on the Duplex variant for sour service.';\n      matched = true;\n    }\n  }\n\n  \/\/ Case 4: Concentrated sulfuric OR hot caustic\n  if (!matched) {\n    var hotCaseHit = false;\n    if (chem === 'conc_sulfuric') { hotCaseHit = true; }\n    if (chem === 'caustic') {\n      if (tempVal > 100) { hotCaseHit = true; }\n    }\n    if (hotCaseHit) {\n      grade = 'SS316L \u2014 with cartridge mechanical seal rated for service';\n      rationale = 'Concentrated sulfuric and hot caustic sit in a narrow window where 316L works if the seal is correctly specified and the pump is kept flooded. Consider mag-drive if the service is continuous.';\n      prenVal = '24-26'; costVal = '1.25-1.35'; lifeVal = '3-7 yrs (seal-dependent)';\n      caveat = 'For \u2265 98% sulfuric above 50 \u00b0C, review with a BBP engineer \u2014 sulfuric service has concentration-temperature windows that flip which alloy wins.';\n      matched = true;\n    }\n  }\n\n  \/\/ Case 5: Moderate chloride OR welded construction\n  if (!matched) {\n    if (cl === 'mod' || welded === 'yes') {\n      grade = 'SS316L';\n      rationale = 'Moderate chloride or welded construction calls for the low-carbon 316 variant to prevent sensitisation in the weld HAZ.';\n      prenVal = '24-26'; costVal = '1.25-1.35'; lifeVal = '6-12 yrs';\n      matched = true;\n    }\n  }\n\n  \/\/ Case 6: High chloride\n  if (!matched) {\n    if (cl === 'high') {\n      grade = 'Duplex 2205';\n      rationale = 'High chloride loads pit 316 prematurely. Duplex 2205 lifts PREN into the mid-30s and doubles yield strength versus 316L.';\n      prenVal = '34-38'; costVal = '1.5-1.8'; lifeVal = '10-18 yrs';\n      matched = true;\n    }\n  }\n\n  \/\/ Case 7: default \u2014 standard 316\n  if (!matched) {\n    grade = 'SS316';\n    rationale = 'Moderate corrosion service without heavy welded construction is the sweet spot for standard 316.';\n    prenVal = '24-26'; costVal = '1.2-1.3'; lifeVal = '5-10 yrs';\n    matched = true;\n  }\n\n  \/\/ High-temperature caveat \u2014 only when no case-specific caveat already set\n  if (tempVal > 200) {\n    if (!caveat) {\n      caveat = 'Operating above 200 \u00b0C reduces the effective PREN of any grade \u2014 review material selection under service temperature with a BBP engineer.';\n    }\n  }\n\n  gt.textContent = grade;\n  gr.textContent = rationale;\n  pren.textContent = prenVal;\n  cost.textContent = costVal;\n  life.textContent = lifeVal;\n  cav.textContent = caveat;\n  r.classList.add('bbpss-active');\n  r.scrollIntoView({ behavior: 'smooth', block: 'start' });\n}\n<\/script>\n<\/div><\/div><\/div>\n<\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>SS Grade Selector for Chemical Service Pick the right alloy in 30 seconds. Enter your process conditions and we will recommend 304, 316, 316L, Duplex 2205, or Super-Duplex 2507. Primary fluid &#8212; choose fluid &#8212;Fresh water \/ CIP waterSulfuric acid \u2014 dilute (&lt;20%)Sulfuric acid \u2014 concentrated (20-98%)Sodium hypochlorite (bleach)Sodium hydroxide (caustic)Hydrochloric acidPhosphoric acidSeawater \/ brackish [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"parent":3495,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_gspb_post_css":"","footnotes":""},"class_list":["post-3638","page","type-page","status-publish","hentry"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/pages\/3638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/comments?post=3638"}],"version-history":[{"count":0,"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/pages\/3638\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/pages\/3495"}],"wp:attachment":[{"href":"https:\/\/bbpmfg.com\/es\/wp-json\/wp\/v2\/media?parent=3638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}