{"id":4186,"date":"2025-06-28T00:26:51","date_gmt":"2025-06-28T07:26:51","guid":{"rendered":"https:\/\/guxiangjs.com\/?post_type=product&p=4186"},"modified":"2025-06-28T00:26:51","modified_gmt":"2025-06-28T07:26:51","slug":"din436-carbon-steel-square-washer","status":"publish","type":"product","link":"https:\/\/guxiangjs.com\/zh\/shop\/din436-carbon-steel-square-washer\/","title":{"rendered":"Din436 Carbon Steel Square Washer"},"content":{"rendered":"
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  1. Heavy-Duty, Corrosion-Protected Load Distribution
    \n\u2022 Precision-cut to DIN 436 geometry in quenched-and-tempered carbon or alloy steel (45#, 40Cr, 42CrMo), each square plate washer spreads clamp force across a wide bearing area, preventing bolt-head pull-through and flange brinelling even under static loads > 300 kN.
    \n\u2022 Core hardness 32 \u2013 40 HRC keeps compressive yield high, while the square outline resists rotation and holds alignment in shear-loaded joints.
    \n\u2022 A \u2265 8 \u00b5m electro-zinc coating with trivalent passivation guarantees \u2265 120 h neutral-salt-spray protection; duplex systems (zinc + epoxy powder) survive 1 000 h and can be tinted clear, yellow, black, olive, or any RAL\/Pantone shade without altering the friction coefficient.
    \n\u2022 Ground faces (Ra \u2264 1.6 \u00b5m) maintain flatness \u2264 0.2 mm per 100 mm, ensuring repeatable preload with Class 8.8 \u2013 12.9 fasteners.<\/li>\n
  2. Versatile, Cross-Industry Application Spectrum
    \n\u2022 Structural Steel & Civil Works: Distributes tie-rod loads on web plates, purlins, and bridge splice joints where thin flanges would otherwise deform.
    \n\u2022 Timber Construction & Formwork: Protects soft wood fibres from crushing when anchoring ledger boards, scaffold ties, and false-work braces.
    \n\u2022 Energy, HVAC & Utilities: Secures solar-panel rails, wind-tower ladders, and heavy pipe clamps exposed to coastal weather, de-icing salts, or industrial condensates.
    \n\u2022 Machinery Bases, Mining & Heavy Equipment: Cushions compressor skids, crusher housings, and engine mounts, maintaining gasket compression under shock and vibration.<\/li>\n
  3. Installer-Friendly, Time-Saving Handling
    \n\u2022 Oversized centre holes accept hot-dip-galvanized or painted bolts without reaming; a slight entry chamfer speeds fit-up on skewed rods.
    \n\u2022 The square profile presents a straight edge that seats flush against channel webs or I-beam flanges, preventing washer spin during torque-up and easing alignment of slotted members.
    \n\u2022 Supplied loose, in stackable kits, or taped for robotic pick-and-place; laser-etched markings show nominal bolt size and thickness for instant on-site verification.
    \n\u2022 Zinc or duplex surfaces provide a stable, lubricant-free friction factor (\u03bc \u2248 0.14 \u00b1 0.03), enabling accurate torque-to-tension conversion with standard tools\u2014no special lubricants or washers required.<\/li>\n
  4. Certified Quality & Long-Term Durability
    \n\u2022 100 % optical inspection confirms outer-edge squareness \u2264 0.05 mm, hole concentricity \u2264 0.05 mm, and thickness \u00b1 0.05 mm; Cp\/Cpk \u2265 1.67 reports are archived for ISO 9001, EN 1090, and IATF 16949 traceability.
    \n\u2022 Shot-peen finishing introduces compressive residual stress, boosting fatigue endurance for structures subject to vibration or temperature cycling (\u221250 \u00b0C \u2026 +200 \u00b0C).
    \n\u2022 Accelerated ageing\u2014500 h cyclic humidity, 100 freeze-thaw cycles, and 2 \u00d7 10\u2076 vibration pulses at 60 % proof load\u2014shows \u2265 95 % preload retention and zero coating delamination.
    \n\u2022 Lot-level QR codes link every washer to melt chemistry, heat-treat curve, coating batch, and dimensional inspection log, giving engineers full transparency when specifying components for safety-critical connections across industries.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"

    Heavy-Duty, Corrosion-Protected Load Distribution \u2022 Precision-cut to DIN 436 geometry in quenched-and-tempered carbon or alloy steel (45#, 40Cr, 42CrMo), each square plate washer spreads clamp force across a wide bearing area, preventing bolt-head pull-through and flange brinelling even under static loads > 300 kN. \u2022 Core hardness 32 \u2013 40 HRC keeps compressive yield high, […]<\/p>","protected":false},"featured_media":4187,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[176],"product_tag":[],"class_list":["post-4186","product","type-product","status-publish","has-post-thumbnail","product_cat-washer","first","instock","taxable","shipping-taxable","purchasable","product-type-variable"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product\/4186","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/comments?post=4186"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/media\/4187"}],"wp:attachment":[{"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/media?parent=4186"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_brand?post=4186"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_cat?post=4186"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/guxiangjs.com\/zh\/wp-json\/wp\/v2\/product_tag?post=4186"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}