{"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\/pt\/chemical-pumps\/stainless-steel-chemical-pump\/ss-grade-selector\/","title":{"rendered":"seletor de grau 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=\"p\u00e3o ralado\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Casa<\/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>Seletor de grau SS para servi\u00e7o qu\u00edmico<\/h1>\n  <p class=\"bbpss-sub\">Escolha a liga certa em 30 segundos. Insira as condi\u00e7\u00f5es do seu processo e recomendaremos 304, 316, 316L, Duplex 2205 ou Super-Duplex 2507.<\/p>\n\n  <div class=\"bbpss-card\">\n    <label for=\"bbpssChemical\">Fluido prim\u00e1rio<\/label>\n    <select id=\"bbpssChemical\">\n      <option value=\"\">1o de fluido (Video Fluido)<\/option>\n      <option value=\"fresh_water\">\u00c1gua doce \/\u00e1gua CIP<\/option>\n      <option value=\"dilute_sulfuric\">\u00c1cido sulf\u00farico dilu\u00eddo (&lt;20%)<\/option>\n      <option value=\"conc_sulfuric\">\u00c1cido sulf\u00farico concentrado (20-98%)<\/option>\n      <option value=\"sodium_hypochlorite\">Hipoclorito de s\u00f3dio (lix\u00edvia)<\/option>\n      <option value=\"caustic\">Hidr\u00f3xido de s\u00f3dio (c\u00e1ustico)<\/option>\n      <option value=\"hydrochloric\">\u00c1cido clor\u00eddrico<\/option>\n      <option value=\"phosphoric\">\u00c1cido fosf\u00f3rico<\/option>\n      <option value=\"seawater\">\u00c1gua do mar\/\u00e1gua salobra<\/option>\n      <option value=\"food_cip\">C\u00e1ustico CIP de qualidade alimentar<\/option>\n      <option value=\"pharma\">WFI farmac\u00eautico\/tamp\u00e3o<\/option>\n      <option value=\"solvent\">Solvente org\u00e2nico<\/option>\n      <option value=\"hf\">\u00c1cido fluor\u00eddrico (&gt;40%)<\/option>\n    <\/select>\n\n    <label for=\"bbpssChloride\">Conte\u00fado de cloreto (ppm)<\/label>\n    <select id=\"bbpssChloride\">\n      <option value=\"low\">Baixo (&lt;50 ppm)<\/option>\n      <option value=\"mod\">Moderado (50 ppm)<\/option>\n      <option value=\"high\">Alto (500 5.000 ppm)<\/option>\n      <option value=\"very_high\">Muito alto (&gt; 5.000 ppm, salobra\/\u00e1gua do mar)<\/option>\n    <\/select>\n\n    <label for=\"bbpssTemp\">Temperatura de funcionamento (\u00b0C)<\/label>\n    <input type=\"number\" id=\"bbpssTemp\" value=\"40\" min=\"-40\" max=\"250\">\n\n    <label for=\"bbpssWelded\">Fabrica\u00e7\u00e3o soldada necess\u00e1ria?<\/label>\n    <select id=\"bbpssWelded\">\n      <option value=\"no\">N\u00e3o h\u00e1 montagem usinada ou usinada<\/option>\n      <option value=\"yes\">Sim, constru\u00e7\u00e3o soldada<\/option>\n    <\/select>\n\n    <button class=\"bbpss-btn\" onclick=\"bbpssRunSelector()\">Obtenha nota 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 Custos (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\">Solicite or\u00e7amento para esta nota \u2192<\/a>\n      <a href=\"#ct-popup-820\" class=\"bbpss-cta-accent\">Fale com um Engenheiro<\/a>\n    <\/div>\n  <\/div>\n\n  <div class=\"bbpss-disclaimer\">\n    <strong>Isen\u00e7\u00e3o de responsabilidade:<\/strong> Este seletor d\u00e1 um ponto de partida com base nas condi\u00e7\u00f5es de servi\u00e7o comumente encontradas Uma especifica\u00e7\u00e3o final deve levar em conta o ciclo de concentra\u00e7\u00e3o de cloreto, teor de sulfeto (se houver), oxig\u00eanio dissolvido, extremos de pH e s\u00f3lidos abrasivos Os engenheiros de aplica\u00e7\u00e3o da BBP est\u00e3o felizes em revisar seus par\u00e2metros completos de processo antes da cota\u00e7\u00e3o.\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\/pt\/wp-json\/wp\/v2\/pages\/3638","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bbpmfg.com\/pt\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bbpmfg.com\/pt\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/pt\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/pt\/wp-json\/wp\/v2\/comments?post=3638"}],"version-history":[{"count":0,"href":"https:\/\/bbpmfg.com\/pt\/wp-json\/wp\/v2\/pages\/3638\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/bbpmfg.com\/pt\/wp-json\/wp\/v2\/pages\/3495"}],"wp:attachment":[{"href":"https:\/\/bbpmfg.com\/pt\/wp-json\/wp\/v2\/media?parent=3638"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}