{"id":3949,"date":"2026-07-29T10:08:43","date_gmt":"2026-07-29T02:08:43","guid":{"rendered":"https:\/\/jblstainless.com\/?post_type=product&p=3949"},"modified":"2026-07-29T10:08:45","modified_gmt":"2026-07-29T02:08:45","slug":"20mm-thickness-q890-q890c-q890d-q890e-q890f-high-strength-steel-plate-sheet","status":"publish","type":"product","link":"https:\/\/jblstainless.com\/fr\/20mm-thickness-q890-q890c-q890d-q890e-q890f-high-strength-steel-plate-sheet\/","title":{"rendered":"20mm Thickness Q890 Q890C Q890D Q890E \u200cQ890F High Strength Steel Plate Sheet"},"content":{"rendered":"
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20mm Thickness Q890 Q890C Q890D Q890E \u200cQ890F High Strength Steel Plate Sheet are made from high-quality alloy steel. The prices of raw materials such as iron ore and scrap steel directly affect the pricing of the finished products.\u00a0<\/p>

Recent changes in the international metal market supply and demand have led to a slight fluctuation in costs. jblstainless<\/span> has previously recommended the trend of purchasing Q890 high-strength structural steel as a bulk raw material.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Why do so many customers choose the JBL stainless Q890 high-strength plate and<\/span><\/h4>

give our products consistent positive feedback?<\/span><\/h4>
\ud83d\udc4d–The materials are of high purity and excellent performance (the plates are sourced from first-class steel mills such as Baowu and Dawang). \ud83d\udc4d–Direct supply from the source, leading in cost (skip the intermediate distribution and achieve direct delivery from factory price).\ud83d\udc4d–One-stop solution for deep processing (process precisely according to the drawings).\ud83d\udc4d–Full-process service guarantee (providing free pre-sale selection\uff0c supporting materials such as material sheets\/quality guarantee certificates\ud83d\udc4d–CMA reports during the sales process\uff0c unconditional return and replacement during after-sales service\uff0c and lifelong technical support).<\/h6>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Key Differences Comparison Table of each model in the Q890 series<\/h3>
model<\/th>meaning of quality grade identification<\/th>Impact test temperature<\/th>Minimum impact energy (KV\u2082)Minimum impact energy (KV\u2082)<\/th>Typical applicable environment<\/th>remark<\/th><\/tr><\/thead>
\u200cQ890C<\/strong>\u200c<\/td>Grade C<\/td>\u200c0\u2103<\/strong>\u200c<\/td>\u226527J (usually \u226547J when t\u226440mm, depending on the thickness)<\/td>Structure at normal temperature or slightly low temperature<\/td>The requirement for low-temperature toughness is the lowest<\/td><\/tr>
\u200cQ890D<\/strong>\u200c<\/td>Grade D\u00a0<\/td>\u200c-20\u2103<\/strong>\u200c<\/td>\u226527J (Some thicknesses require \u226547J)<\/td>Construction machinery and vehicles in general cold regions<\/td>The most widely used basic low-temperature stage<\/td><\/tr>
\u200cQ890E<\/strong>\u200c<\/td>Grade E\u00a0<\/td>\u200c-40\u2103<\/strong>\u200c<\/td>\u226527J (Some thicknesses require \u226547J)<\/td>Cold regions, polar equipment, and important load-bearing structures<\/td>The low-temperature toughness is significantly better than that of grade D<\/td><\/tr>
\u200cQ890F<\/strong>\u200c<\/td>Grade F\u00a0<\/td>\u200c-60\u2103<\/strong>\u200c<\/td>\u226527J<\/td>Extremely cold environments, special military industries or scientific fields<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\u00a0<\/p>

High strength stainless steel plate Q890\u00a0 – Main Chemical Components<\/span><\/p>