{"id":2307,"date":"2026-04-23T15:36:00","date_gmt":"2026-04-23T07:36:00","guid":{"rendered":"https:\/\/www.gsnewmaterial.com\/?p=2307"},"modified":"2026-04-23T15:36:00","modified_gmt":"2026-04-23T07:36:00","slug":"cold-drawn-honed-tube-cdht-e355-30-e355-id-63-160mm-h8-seamless","status":"publish","type":"post","link":"https:\/\/www.gsnewmaterial.com\/es\/cold-drawn-honed-tube-cdht-e355-30-e355-id-63-160mm-h8-seamless.html","title":{"rendered":"Cold Drawn Honed Tube CDHT-E355-30 (E355, ID 63-160mm, H8, Seamless)"},"content":{"rendered":"
\n

Product Description<\/h3>\n

What is a Cold Drawn Honed Tube?<\/h5>\n

A\u00a0Cold Drawn Honed Tube<\/strong>\u00a0is manufactured through a two-step process:<\/p>\n

    \n
  1. \n

    Cold Drawing<\/strong>\u00a0\u2013 Seamless steel tubes are cold drawn to achieve precise outer diameter and improved mechanical properties.<\/p>\n<\/li>\n

  2. \n

    Internal Honing<\/strong>\u00a0\u2013 The inner surface is honed to achieve a smooth, mirror-like finish with tight dimensional accuracy.<\/p>\n<\/li>\n<\/ol>\n

    This combination makes cold drawn honed tubes the\u00a0ideal raw material for hydraulic and pneumatic cylinder barrels<\/strong>.<\/p>\n

    \"\"<\/div>\n

    It is especially suitable for small diameter, thin wall, and long-length hydraulic and pneumatic parts.<\/p>\n

    Key Specifications<\/strong><\/p>\n

    \n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    Parameter<\/b><\/strong><\/td>\nValue<\/b><\/strong><\/td>\n<\/tr>\n
    Product Name<\/strong><\/td>\nCold Drawn Honed Tube<\/td>\n<\/tr>\n
    Material<\/strong><\/td>\n[ST52 \/ 45# \/ 20# \/ E355 \/ 27SiMn \/ SAE 1020 \/ SAE 1045 \/ Q355B]<\/td>\n<\/tr>\n
    Outer Diameter (OD)<\/strong><\/td>\n50 \u2013 180 mm<\/td>\n<\/tr>\n
    Inner Diameter (ID)<\/strong><\/td>\n40 \u2013 150 mm<\/td>\n<\/tr>\n
    Wall Thickness<\/strong><\/td>\n5 \u2013 20 mm<\/td>\n<\/tr>\n
    Tolerance Grade<\/strong><\/td>\nH8 (standard) \/ H9 (economic) \/ H7 (upon request)<\/td>\n<\/tr>\n
    Surface Roughness (Ra)<\/strong><\/td>\n\u2264 0.4 \u03bcm (standard) \/ \u2264 0.2 \u03bcm (upon request)<\/td>\n<\/tr>\n
    Straightness<\/strong><\/td>\n\u2264 0.5 mm per meter<\/td>\n<\/tr>\n
    Length<\/strong><\/td>\n6 meters (standard) \/ 3 \u2013 12 meters (customized)<\/td>\n<\/tr>\n
    Delivery Condition<\/strong><\/td>\nBK+S (stress relieved) \/ BK (cold drawn hard) \/ NBK (normalized)<\/td>\n<\/tr>\n
    End Finish<\/strong><\/td>\nPlastic caps + anti-rust oil<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

     <\/p>\n<\/div>\n

    Why Choose Our Cold Drawn Honed Tubes?<\/h3>\n
    \n
    \n
    <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n
    Advantage<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
    High Dimensional Accuracy<\/strong><\/td>\nH8\/H7 tolerance ensures perfect piston fit and smooth cylinder operation<\/td>\n<\/tr>\n
    Excellent Surface Finish<\/strong><\/td>\nRa \u2264 0.4\u03bcm reduces seal wear and extends cylinder service life<\/td>\n<\/tr>\n
    Consistent Mechanical Properties<\/strong><\/td>\nCold drawing refines grain structure, improving strength and hardness<\/td>\n<\/tr>\n
    No Weld Seam<\/strong><\/td>\nSeamless base material ensures no leakage risk under high pressure<\/td>\n<\/tr>\n
    Stress Relieved (BK+S)<\/strong><\/td>\nResidual stress removed \u2013 no deformation during machining<\/td>\n<\/tr>\n
    Full Traceability<\/strong><\/td>\nEach batch comes with COA and EN 10204 3.1 certificate<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n

    Available Materials & Standards<\/h3>\n
    \n
    \n
    <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n
    Material Grade<\/th>\nCorresponding Standard<\/th>\nApplication Suggestion<\/th>\n<\/tr>\n<\/thead>\n
    ST52 \/ E355<\/strong><\/td>\nDIN 2391 \/ EN 10305-1<\/td>\nMost popular for general hydraulic cylinders<\/td>\n<\/tr>\n
    45# \/ CK45<\/strong><\/td>\nGB\/T 8713 \/ DIN 2391<\/td>\nMedium carbon steel, good strength & machinability<\/td>\n<\/tr>\n
    20# \/ SAE 1020<\/strong><\/td>\nGB\/T 8162 \/ ASTM A519<\/td>\nLow carbon, good for welding and forming<\/td>\n<\/tr>\n
    27SiMn<\/strong><\/td>\nGB\/T 17396<\/td>\nAlloy steel for heavy-duty mining cylinders<\/td>\n<\/tr>\n
    Q355B<\/strong><\/td>\nGB\/T 1591<\/td>\nChinese standard equivalent to ST52<\/td>\n<\/tr>\n
    SAE 1045<\/strong><\/td>\nASTM A519<\/td>\nHigher strength than 1020, wear resistant<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n

    Standard Size Range<\/h3>\n

    Below is our common size range. Custom sizes available upon request.<\/em><\/p>\n

    \n
    \n
    <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    ID (mm)<\/th>\nOD (mm)<\/th>\nWall Thickness (mm)<\/th>\n<\/tr>\n<\/thead>\n
    40<\/td>\n50 \u2013 55<\/td>\n5.0 \u2013 7.5<\/td>\n<\/tr>\n
    50<\/td>\n60 \u2013 65<\/td>\n5.0 \u2013 7.5<\/td>\n<\/tr>\n
    63<\/td>\n73 \u2013 80<\/td>\n5.0 \u2013 8.5<\/td>\n<\/tr>\n
    80<\/td>\n90 \u2013 100<\/td>\n5.0 \u2013 10.0<\/td>\n<\/tr>\n
    100<\/td>\n115 \u2013 125<\/td>\n7.5 \u2013 12.5<\/td>\n<\/tr>\n
    125<\/td>\n140 \u2013 152<\/td>\n7.5 \u2013 13.5<\/td>\n<\/tr>\n
    140<\/td>\n156 \u2013 168<\/td>\n8.0 \u2013 14.0<\/td>\n<\/tr>\n
    160<\/td>\n180 \u2013 190<\/td>\n10.0 \u2013 20.0<\/td>\n<\/tr>\n
    180<\/td>\n200 \u2013 220<\/td>\n10.0 \u2013 20.0<\/td>\n<\/tr>\n
    200<\/td>\n220 \u2013 245<\/td>\n10.0 \u2013 22.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
    \n

    Custom Sizes<\/strong>: ID from 30mm to 500mm, any OD\/WT combination available. Minimum order quantity may apply.<\/p>\n<\/blockquote>\n<\/div>\n

    Application Cases<\/strong><\/div>\n
    <\/div>\n
      \n
    • Automotive Shock Absorbers<\/strong>: Used in car, SUV, and truck shock absorber cylinders, smooth rebound and low noise.<\/li>\n
    • Mini Pneumatic Components<\/strong>: Applied in micro cylinders and pneumatic fingers, sensitive action and high precision.<\/li>\n
    • Hydraulic Valve Blocks<\/strong>: Used in valve groups and oil passages, stable flow and no jamming.<\/li>\n
    • Textile & Printing Machinery<\/strong>: Applied in guide sleeves and positioning components, wear-resistant and long-life.<\/li>\n
    • Precision Instruments<\/strong>: Used in transmission sleeves and electric pushers, high consistency and stability.<\/li>\n<\/ul>\n
      \"\"<\/div>\n
      We have professional cold drawing and honing production lines, with stable quality and on-time delivery. We support small orders, sample testing, and cut-to-length service.<\/div>","protected":false},"excerpt":{"rendered":"

      Product Description What is a Cold Drawn Honed Tube? A\u00a0Cold Drawn Honed Tube\u00a0is manufactured through a two-step process: Cold Drawing\u00a0\u2013 Seamless steel tubes are cold drawn to achieve precise outer diameter and improved mechanical properties. Internal Honing\u00a0\u2013 The inner surface is honed to achieve a smooth, mirror-like finish with tight dimensional accuracy. This combination makes […]<\/p>","protected":false},"author":2,"featured_media":2273,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[28,7],"tags":[],"class_list":["post-2307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cold-drawn-honed-tubes","category-product-center"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/posts\/2307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/comments?post=2307"}],"version-history":[{"count":1,"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/posts\/2307\/revisions"}],"predecessor-version":[{"id":2316,"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/posts\/2307\/revisions\/2316"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/media\/2273"}],"wp:attachment":[{"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/media?parent=2307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/categories?post=2307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.gsnewmaterial.com\/es\/wp-json\/wp\/v2\/tags?post=2307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}