{"product_id":"65mn-spring-steel-sheet-plate-0-5mm-5mm-flat-metal-plate","title":"65Mn Spring Steel Sheet Plate 0.5mm–5mm Flat Metal Stock for Shims, Springs \u0026 Tooling","description":"\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How do I choose the right thickness for my project?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"For light-duty shims and spacers, 0.5mm–1mm is generally sufficient. For spring clips, flexible blades, or parts that need to hold a set shape under load, 1.5mm–3mm is typically the right range. For structural tooling inserts or wear plates, 4mm–5mm is commonly used. When in doubt, go one step thicker — you can always grind down, but you can't add material back.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What is 65Mn spring steel and how is it different from stainless steel?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"65Mn is a high-carbon manganese spring steel alloy known for its excellent elasticity, hardness, and fatigue resistance. Unlike stainless steel, 65Mn is not corrosion-resistant on its own, but it offers superior spring-back properties and toughness under repeated flexing. It is generally used where stainless steel would be too soft or too brittle.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can these plates be used outdoors or in wet environments?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"65Mn spring steel will oxidize if left unprotected in humid or wet conditions. For outdoor use, it is generally recommended to apply a rust-inhibiting coating, oil film, or paint after cutting and fitting. If corrosion resistance is a primary requirement, a stainless steel shim stock may be a better fit for your application.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can I cut, drill, or bend these sheets?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Thinner gauges (0.5mm–1mm) can typically be cut with heavy-duty metal shears or a rotary tool. Thicker gauges (2mm–5mm) generally require an angle grinder, metal-cutting bandsaw, or waterjet. Drilling is possible with HSS or cobalt drill bits and cutting fluid. Bending is feasible but 65Mn work-hardens quickly, so tight-radius bends may require annealing first.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What are the exact dimensions of each piece?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Width is 100mm (≈3.94\\\") across all variants. Length is either 100mm (≈3.94\\\") or 200mm (≈7.87\\\") depending on the variant selected. Thickness ranges from 0.5mm to 5mm. Please select your preferred combination from the variant options above before adding to cart.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How many pieces come in each order?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"The piece count per order varies by thickness and length combination — ranging from 1 piece (for thicker or longer cuts) up to 10 pieces (for the thinnest 100mm option). The exact quantity is shown in the 'Length \u0026 Amount' variant selector above.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Is this material suitable for making custom shims or precision spacers?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. 65Mn spring steel sheet is commonly used for shim stock and precision spacer applications in machine shops and repair work. The consistent thickness and flat surface make it well-suited for shimming bearings, aligning machinery, and filling gaps in mechanical assemblies. For very tight tolerances, verify the actual thickness with a micrometer upon receipt.\"\n      }\n    }\n  ]\n}\n\u003c\/script\u003e\n\n\u003cdiv class=\"hdiy-desc\"\u003e\n\n  \u003cdiv class=\"hdiy-overview\"\u003e\n    \u003ch2\u003e65Mn Spring Steel Flat Sheet — Reliable Stock Material for Shims, Springs \u0026amp; Tooling\u003c\/h2\u003e\n    \u003cp\u003eMachinists, fabricators, and hands-on builders know the frustration of sourcing flat spring steel stock in the exact thickness they need — only to find generic mild steel that bends and stays bent, or stainless that snaps under repeated flex. Whether you're shimming a bearing housing, fabricating a custom spring clip, or building a wear-resistant tooling insert, the material has to hold its shape and bounce back reliably.\u003c\/p\u003e\n    \u003cp\u003eEach piece in this listing is cut from 65Mn high-carbon manganese spring steel — a material widely used in industrial tooling, precision shim stock, and flexible blade applications. Width is a consistent 100mm (≈3.94\") across all variants. Length options are 100mm (≈3.94\") or 200mm (≈7.87\"). Thickness ranges from 0.5mm (≈0.020\") up to 5mm (≈0.197\"), with piece counts per order ranging from 1 to 10 depending on the combination selected. The surface is flat-rolled and smooth, ready for layout, cutting, or direct use.\u003c\/p\u003e\n    \u003cp\u003eTypical applications include precision shim stock for machine alignment, custom spring blades and retaining clips, wear plates and tooling inserts in jigs and fixtures, and gap-filling spacers in automotive or equipment repair. The consistent gauge and flat profile make this 65Mn spring steel sheet plate a practical choice for any shop needing reliable flat metal stock in a specific size.\u003c\/p\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-compat\"\u003e\n    \u003cspan class=\"hdiy-compat-icon\"\u003eℹ️\u003c\/span\u003e\n    \u003cstrong\u003eMaterial Note:\u003c\/strong\u003e This is 65Mn carbon manganese spring steel — not stainless steel. It offers excellent spring-back and hardness but requires a protective coating for humid or outdoor environments. Verify thickness with a micrometer for precision-tolerance applications.\n  \u003c\/div\u003e\n\n  \u003ch2\u003e✅ Key Features of These 65Mn Spring Steel Sheet Plates\u003c\/h2\u003e\n  \u003cul class=\"hdiy-features\"\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔩\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eTrue Spring-Back Elasticity\u003c\/strong\u003e — 65Mn alloy is engineered to flex under load and return to its original flat shape, making it far more suitable for spring clips and flexible blades than standard mild steel sheet.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📏\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eWide Thickness Range in One Listing\u003c\/strong\u003e — Available from 0.5mm (≈0.020\") to 5mm (≈0.197\"), covering light shim stock through structural tooling inserts without needing to source from multiple suppliers.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e✂️\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eFlat-Rolled, Workable Surface\u003c\/strong\u003e — The smooth, flat surface is ready for scribing, drilling, cutting, or direct installation. Thinner gauges cut cleanly with metal shears; thicker gauges respond well to angle grinders and HSS drill bits.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🏭\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eConsistent Gauge for Precision Shimming\u003c\/strong\u003e — Uniform thickness across each piece makes this spring steel flat plate reliable for bearing alignment, machinery shimming, and gap-filling spacer applications where stack height matters.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e📦\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eMulti-Piece Sets Available\u003c\/strong\u003e — Order up to 10 pieces per set (thinner gauges) so you have spares for prototyping, testing, or stacking multiple shims to dial in exact clearances without waiting for a reorder.\u003c\/span\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n      \u003cspan class=\"hdiy-icon\"\u003e🔧\u003c\/span\u003e\n      \u003cspan\u003e\u003cstrong\u003eVersatile Across Trades\u003c\/strong\u003e — Used in machine shops, automotive repair, woodworking jigs, knife-making blanks, and DIY fabrication projects where a flat, hard, springy metal plate is needed in a specific size.\u003c\/span\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003e📐 Technical Specifications — 65Mn Spring Steel Sheet Plate\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-table-wrap\"\u003e\n    \u003ctable\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003e65Mn High-Carbon Manganese Spring Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eWidth\u003c\/th\u003e\n\u003ctd\u003e100mm (≈3.94\") — all variants\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eLength Options\u003c\/th\u003e\n\u003ctd\u003e100mm (≈3.94\") or 200mm (≈7.87\") — select via variant\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThickness Options\u003c\/th\u003e\n\u003ctd\u003e0.5mm, 0.6mm, 0.8mm, 1mm, 1.5mm, 2mm, 3mm, 4mm, 5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eThickness in Inches\u003c\/th\u003e\n\u003ctd\u003e≈0.020\" \/ 0.024\" \/ 0.031\" \/ 0.039\" \/ 0.059\" \/ 0.079\" \/ 0.118\" \/ 0.157\" \/ 0.197\"\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003ePieces per Set\u003c\/th\u003e\n\u003ctd\u003e1–10 pcs depending on thickness \u0026amp; length (see variant selector)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eSurface Finish\u003c\/th\u003e\n\u003ctd\u003eFlat-rolled, smooth\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eHardness\u003c\/th\u003e\n\u003ctd\u003eTypically HRC 40–50 (varies by temper state — contact us to confirm)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003ctd\u003eLow — protective coating recommended for outdoor or humid use\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eMachinability\u003c\/th\u003e\n\u003ctd\u003eCuttable with HSS tools, angle grinder, or metal shears (gauge-dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eCountry of Origin\u003c\/th\u003e\n\u003ctd\u003eSee variant options\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003cth\u003eFulfillment\u003c\/th\u003e\n\u003ctd\u003eShips from US warehouse\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003e❓ Frequently Asked Questions\u003c\/h2\u003e\n  \u003cdiv class=\"hdiy-faq\"\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow do I choose the right thickness for my project?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eFor light-duty shims and spacers, 0.5mm–1mm is generally sufficient. For spring clips, flexible blades, or parts that need to hold a set shape under load, 1.5mm–3mm is typically the right range. For structural tooling inserts or wear plates, 4mm–5mm is commonly used. When in doubt, go one step thicker — you can always grind down, but you can't add material back.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat is 65Mn spring steel and how is it different from stainless steel?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003e65Mn is a high-carbon manganese spring steel alloy known for its excellent elasticity, hardness, and fatigue resistance. Unlike stainless steel, 65Mn is not corrosion-resistant on its own, but it offers superior spring-back properties and toughness under repeated flexing. It is generally used where stainless steel would be too soft or too brittle for the application.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan these plates be used outdoors or in wet environments?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003e65Mn spring steel will oxidize if left unprotected in humid or wet conditions. For outdoor use, it is generally recommended to apply a rust-inhibiting coating, oil film, or paint after cutting and fitting. If corrosion resistance is a primary requirement, a stainless steel shim stock may be a better fit for your application.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eCan I cut, drill, or bend these sheets?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. Thinner gauges (0.5mm–1mm) can typically be cut with heavy-duty metal shears or a rotary tool. Thicker gauges (2mm–5mm) generally require an angle grinder, metal-cutting bandsaw, or waterjet. Drilling is possible with HSS or cobalt drill bits and cutting fluid. Bending is feasible, but 65Mn work-hardens quickly — tight-radius bends may require annealing first to avoid cracking.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eWhat are the exact dimensions of each piece?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eWidth is 100mm (≈3.94\") across all variants. Length is either 100mm (≈3.94\") or 200mm (≈7.87\") depending on the variant selected. Thickness ranges from 0.5mm to 5mm. Please select your preferred combination from the variant options above before adding to cart.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eHow many pieces come in each order?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eThe piece count per order varies by thickness and length combination — ranging from 1 piece (for thicker or longer cuts) up to 10 pieces (for the thinnest 100mm option). The exact quantity is shown in the \"Length \u0026amp; Amount\" variant selector above before you add to cart.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n    \u003cdetails\u003e\n      \u003csummary\u003eIs this material suitable for making custom shims or precision spacers?\u003c\/summary\u003e\n      \u003cdiv class=\"hdiy-faq-body\"\u003e\n        \u003cp\u003eYes. 65Mn spring steel sheet is commonly used for shim stock and precision spacer applications in machine shops and repair work. The consistent thickness and flat surface make it well-suited for shimming bearings, aligning machinery, and filling gaps in mechanical assemblies. For very tight tolerances, verify the actual thickness with a micrometer upon receipt.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"hdiy-cta\"\u003e\n    🛒 Select your thickness and length above, then add to cart — ships from our US warehouse.\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"HomeDIYer","offers":[{"title":"0.5mm \/ 100mm \/ 100mm \u0026 10 Pcs","offer_id":52378550010130,"sku":"BGMGLBZSJ013460x1","price":35.31,"currency_code":"USD","in_stock":true},{"title":"0.6mm \/ 100mm \/ 100mm \u0026 10 Pcs","offer_id":52378550042898,"sku":"BGMGLBZSJ013461x1","price":41.36,"currency_code":"USD","in_stock":true},{"title":"0.8mm \/ 100mm \/ 100mm \u0026 7 Pcs","offer_id":52378550075666,"sku":"BGMGLBZSJ013462x1","price":38.91,"currency_code":"USD","in_stock":true},{"title":"1mm \/ 100mm \/ 100mm \u0026 5 Pcs","offer_id":52378550108434,"sku":"BGMGLBZSJ013463x1","price":35.31,"currency_code":"USD","in_stock":true},{"title":"1.5mm \/ 100mm \/ 100mm \u0026 4 Pcs","offer_id":52378550141202,"sku":"BGMGLBZSJ013464x1","price":41.26,"currency_code":"USD","in_stock":true},{"title":"2mm \/ 100mm \/ 100mm \u0026 3 Pcs","offer_id":52378550173970,"sku":"BGMGLBZSJ013465x1","price":41.26,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 100mm \/ 100mm \u0026 2 Pcs","offer_id":52378550206738,"sku":"BGMGLBZSJ013466x1","price":41.26,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 100mm \/ 100mm \u0026 2 Pcs","offer_id":52378550239506,"sku":"BGMGLBZSJ013467x1","price":51.41,"currency_code":"USD","in_stock":true},{"title":"1mm \/ 100mm \/ 200mm \u0026 3 Pcs","offer_id":52378550272274,"sku":"BGMGLBZSJ013468x1","price":41.26,"currency_code":"USD","in_stock":true},{"title":"2mm \/ 100mm \/ 200mm \u0026 2 Pcs","offer_id":52378550305042,"sku":"BGMGLBZSJ013469x1","price":53.33,"currency_code":"USD","in_stock":true},{"title":"3mm \/ 100mm \/ 200mm \u0026 1 Pcs","offer_id":52378550337810,"sku":"BGMGLBZSJ013470x1","price":40.83,"currency_code":"USD","in_stock":true},{"title":"4mm \/ 100mm \/ 200mm \u0026 1 Pcs","offer_id":52378550370578,"sku":"BGMGLBZSJ013471x1","price":53.49,"currency_code":"USD","in_stock":true},{"title":"5mm \/ 100mm \/ 200mm \u0026 1 Pcs","offer_id":52378550403346,"sku":"BGMGLBZSJ013472x1","price":66.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0884\/8936\/1682\/files\/Picture1of5_cf0a5bd0-3d42-470a-94db-d1a340d54070.jpg?v=1781599478","url":"https:\/\/homediyer.com\/products\/65mn-spring-steel-sheet-plate-0-5mm-5mm-flat-metal-plate","provider":"HomeDIYer","version":"1.0","type":"link"}