{"id":7631,"date":"2026-05-04T18:51:47","date_gmt":"2026-05-04T10:51:47","guid":{"rendered":"https:\/\/maxtormetal.com\/?post_type=product&p=7631"},"modified":"2026-05-28T14:22:37","modified_gmt":"2026-05-28T06:22:37","slug":"industrial-blade-strip-steel-beveled-reels","status":"publish","type":"product","link":"https:\/\/maxtormetal.com\/vi\/san-pham\/industrial-blade-strip-steel-beveled-reels\/","title":{"rendered":"Th\u00e9p b\u0103ng m\u00e0i c\u1ea1nh d\u1ea1ng cu\u1ed9n"},"content":{"rendered":"

\"Precision<\/h2>\n

1. Blade Strip Steel: Technical Fundamentals<\/h2>\n

Engineering Grade Precision Blade Strip Steel<\/h3>\n

Engineered for high-speed continuous slicing and complex grid-blade manufacturing, this strip steel balances extreme edge retention with the structural integrity required for industrial slotting.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Tham s\u1ed1<\/strong><\/td>\nSpecification (High Carbon Steel)<\/strong><\/td>\nSpecification (Stainless Steel)<\/strong><\/td>\n<\/tr>\n
Material Grade<\/strong><\/td>\nSK5, C100S, C75<\/td>\n420 (1.4021), 440C<\/td>\n<\/tr>\n
Ph\u1ea1m vi \u0111\u1ed9 c\u1ee9ng<\/strong><\/td>\nHRC 56 \u2013 62<\/td>\nHRC 46 \u2013 56<\/td>\n<\/tr>\n
Ph\u1ea1m vi \u0111\u1ed9 d\u00e0y<\/strong><\/td>\n0.50mm \u2013 2.0mm<\/td>\n0.50mm \u2013 2.0mm<\/td>\n<\/tr>\n
Width Range<\/strong><\/td>\n7mm \u2013 100mm<\/td>\n7mm \u2013 100mm<\/td>\n<\/tr>\n
Thickness Tolerance\u00a0(with Cpk<\/sub> \u22651.33 across 500m continuous coil)<\/strong><\/td>\n\u00b1 0.01 mm to \u00b1 0.02 mm<\/td>\n\u00b1 0.01 mm to \u00b1 0.02mm<\/td>\n<\/tr>\n
Ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t<\/strong><\/td>\nBlade: Ra < 0.8\u00b5m; Body: Ra < 1.6\u00b5m<\/td>\nBlade: Ra < 0.8\u00b5m; Body: Ra < 1.6\u00b5m<\/td>\n<\/tr>\n
Dimensional Std.<\/strong><\/td>\nISO 2768-mK<\/td>\nISO 2768-mK<\/td>\n<\/tr>\n
Supply Format<\/strong><\/td>\nCoils: 100m, 200m, 300m, 500m<\/td>\nCoils: 100m, 200m, 300m, 500m<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

2. Blade Strip Steel Engineering Overview: The Mechanics of the Edge<\/h2>\n

In the specialized field of Th\u00e9p b\u0103ng m\u00e0i c\u1ea1nh d\u1ea1ng cu\u1ed9n<\/strong>, performance is a function of H\u00ecnh h\u1ecdc c\u1ea1nh<\/strong> V\u00e0 Material Toughness<\/strong>. Unlike standard flat steel, blade strip must undergo a rigorous cold-rolling and heat-treatment cycle to ensure that when the steel is “slotted” to create dicing grids, it does not succumb to stress fractures.<\/p>\n

2.1 Fracture Toughness in Grid Applications<\/h3>\n

The manufacturing of grid blades (dicers) involves cutting slots into the strip. This creates significant Stress Concentration Factors (Kt<\/sub>)<\/strong>. Our engineering approach focuses on controlling the carbide morphology<\/strong> in SK5 and 440C grades. By ensuring a fine, globular carbide distribution, we mitigate the risk of “blade snapping” (brittle fracture) at the slot corners while maintaining a hardness of up to HRC 62.<\/p>\n

2.2 Tribological Considerations<\/h3>\n

During high-speed slitting of PE\/BOPP films or fibrous meat products, the blade surface experiences intense localized friction. The specified surface finish of Ra < 0.8\u00b5m<\/strong> at the edge is not merely aesthetic; it reduces the Coefficient of Friction (<\/strong>\u03bc<\/strong>)<\/strong>, preventing material adhesion (pick-up) and thermal softening of the cutting tip.<\/p>\n

 <\/p>\n

3. Blade Strip Steel Industrial Applications: Sector-Specific Analysis<\/h2>\n

3.1 Industrial Food Dicing (Grid Systems)<\/h3>\n
    \n
  • Target:<\/strong> Potatoes, carrots, and onions.<\/li>\n
  • Equipment:<\/strong> Urschel-type dicers.<\/li>\n
  • Engineering Focus:<\/strong> Corrosion resistance. 420 and 440C grades are utilized to withstand the acidic\/aqueous environments of vegetable processing while providing enough toughness to handle high-frequency dicing.<\/li>\n<\/ul>\n

    3.2 Meat & Protein Slicing<\/h3>\n
      \n
    • Target:<\/strong> Processed meat products.<\/li>\n
    • Equipment:<\/strong> Continuous belt slicers.<\/li>\n
    • Engineering Focus:<\/strong> Lateral stiffness. The 0.50mm-2.0mm thickness range provides the necessary beam strength to prevent blade deflection during high-speed protein shearing.<\/li>\n<\/ul>\n

      3.3 VFFS (Vertical Form Fill Seal) Packaging<\/h3>\n
        \n
      • Target:<\/strong> BOPP, PE, and laminate films.<\/li>\n
      • Equipment:<\/strong> Automatic flow wrappers.<\/li>\n
      • Engineering Focus:<\/strong> Ultra-sharp “pierce and cut” capability. SK5\/C100S carbon steel is preferred here for its ability to hold a razor-fine edge compared to standard stainless.<\/li>\n<\/ul>\n

        3.4 Foam & Synthetic Rubber Fabrication<\/h3>\n
          \n
        • Target:<\/strong> Acoustic foam, gaskets.<\/li>\n
        • Equipment:<\/strong> Customized grid-making slitting lines.<\/li>\n
        • Engineering Focus:<\/strong> Consistency across long coil lengths (up to 500m) to minimize machine downtime during coil changes.<\/li>\n<\/ul>\n

          3.5 Textile & Non-woven Slitting<\/h3>\n
            \n
          • Target:<\/strong> Industrial fabrics, medical textiles.<\/li>\n
          • Equipment:<\/strong> High-speed slitting lines.<\/li>\n
          • Engineering Focus:<\/strong> Edge retention. The higher HRC 56-62 in carbon grades ensures the blade can cut abrasive synthetic fibers without frequent regrinding.<\/li>\n<\/ul>\n

            3.6 Fruit Processing (Slicing\/Coring)<\/h3>\n
              \n
            • Target:<\/strong> Apples, pineapples.<\/li>\n
            • Equipment:<\/strong> Industrial fruit processing lines.<\/li>\n
            • Engineering Focus:<\/strong> Food-grade certification compliance using 440C stainless steel for a balance of extreme hardness and hygiene.<\/li>\n<\/ul>\n

              \"Cu\u1ed9n<\/p>\n

              4. Blade Strip Steel Common Failure Problems & Engineering Solutions<\/h2>\n
                \n
              1. Problem: Brittle Fracture at Slot Base.<\/strong>\n
                  \n
                • Root Cause:<\/em> Excessive internal stress from hardening or sharp 90\u00b0 slot geometry.<\/li>\n
                • Gi\u1ea3i ph\u00e1p:<\/em> Optimize tempering cycles to increase ductility. Recommendation: Use a 300\u00b0C+ tempering stage to transform brittle martensite into a tougher structure.<\/li>\n<\/ul>\n<\/li>\n
                • Problem: Frequent Downtime for Blade Replacement.<\/strong>\n
                    \n
                  • Root Cause:<\/em> Edge wear due to low carbide volume in standard steel.<\/li>\n
                  • Gi\u1ea3i ph\u00e1p:<\/em> Upgrade to SK5<\/strong> ho\u1eb7c 440\u00b0C<\/strong> for higher primary carbide density, extending run-times by 200%.<\/li>\n<\/ul>\n<\/li>\n
                  • Problem: Material Waste (Off-cuts).<\/strong>\n
                      \n
                    • Root Cause:<\/em> Using fixed-length blades for varied production runs.<\/li>\n
                    • Gi\u1ea3i ph\u00e1p:<\/em> Supply in 500m continuous coils<\/strong>, allowing the customer to cut only the exact length needed for specific grid configurations.<\/li>\n<\/ul>\n<\/li>\n
                    • Problem: Longitudinal Blade Bowing.<\/strong>\n
                        \n
                      • Root Cause:<\/em> Uneven residual stress from the cold-rolling process.<\/li>\n
                      • Gi\u1ea3i ph\u00e1p:<\/em> Implementation of tension-leveling and sub-zero treatment to ensure linear straightness.<\/li>\n<\/ul>\n<\/li>\n
                      • Problem: Rapid Blunting in Food Dicing.<\/strong>\n
                          \n
                        • Root Cause:<\/em> Micro-corrosion at the edge tip (chemical wear).<\/li>\n
                        • Gi\u1ea3i ph\u00e1p:<\/em> Switch from 420 to 440\u00b0C<\/strong>, which offers higher Chrome content and carbon for better edge stability in aqueous environments.<\/li>\n<\/ul>\n<\/li>\n
                        • Problem: “Tearing” of Packaging Film.<\/strong>\n
                            \n
                          • Root Cause:<\/em> Edge roughness (Ra) exceeding 1.2\u00b5m.<\/li>\n
                          • Gi\u1ea3i ph\u00e1p:<\/em> Precision grinding to achieve Ra < 0.8\u00b5m<\/strong> at the bevel, ensuring a clean shear.<\/li>\n<\/ul>\n<\/li>\n
                          • Problem: Thermal Deformation.<\/strong>\n
                              \n
                            • Root Cause:<\/em> Friction heat during high-speed textile slitting.<\/li>\n
                            • Gi\u1ea3i ph\u00e1p:<\/em> Reduce bevel angle to minimize contact area; use C100S for better thermal conductivity.<\/li>\n<\/ul>\n<\/li>\n
                            • Problem: Inconsistent Dicing Dimensions.<\/strong>\n
                                \n
                              • Root Cause:<\/em> Thickness variation across the strip.<\/li>\n
                              • Gi\u1ea3i ph\u00e1p:<\/em> Tightening tolerances to \u00b10.01<\/strong> mm<\/strong> through rigorous AGC (Automatic Gauge Control) during rolling.<\/li>\n<\/ul>\n<\/li>\n
                              • Problem: Surface Rusting in Carbon Steel.<\/strong>\n
                                  \n
                                • Root Cause:<\/em> Poor humidity control in storage.<\/li>\n
                                • Gi\u1ea3i ph\u00e1p:<\/em> Application of VCI (Volatile Corrosion Inhibitor) oil and vacuum-sealed packaging for 100m-500m coils.<\/li>\n<\/ul>\n<\/li>\n
                                • Problem: Difficulty in Slotting\/Machining.<\/strong>\n
                                    \n
                                  • Root Cause:<\/em> Steel is too hard for the customer’s secondary processing.<\/li>\n
                                  • Gi\u1ea3i ph\u00e1p:<\/em> Provide steel in a “Spheroidized Annealed” state for machining, followed by localized hardening, OR provide pre-tempered steel at HRC 46-50.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n

                                    5. Blade Strip Steel Material Engineering Guide<\/h2>\n\n\n\n\n\n\n\n\n
                                    C\u1ea5p<\/strong><\/td>\nCarbon (%)<\/strong><\/td>\nChrome (%)<\/strong><\/td>\nMechanical Profile<\/strong><\/td>\n\u1ee8ng d\u1ee5ng \u0111i\u1ec3n h\u00ecnh<\/strong><\/td>\n<\/tr>\n
                                    SK5<\/strong><\/td>\n0.80 – 0.90<\/td>\n–<\/td>\nUltra-high hardness (HRC 60+).<\/td>\nIndustrial slitting & non-food dicing.<\/td>\n<\/tr>\n
                                    C100S<\/strong><\/td>\n0.95 – 1.05<\/td>\n–<\/td>\nHigh elastic limit, excellent for thin blades.<\/td>\nPrecision film slitting.<\/td>\n<\/tr>\n
                                    420 SS<\/strong><\/td>\n0.20 – 0.40<\/td>\n12.0 – 14.0<\/td>\nModerate wear resistance, high corrosion resistance.<\/td>\nGeneral food dicing.<\/td>\n<\/tr>\n
                                    440C SS<\/strong><\/td>\n0.95 – 1.20<\/td>\n16.0 – 18.0<\/td>\nHighest hardness for stainless (HRC 56).<\/td>\nAbrasive food and medical dicing.<\/td>\n<\/tr>\n
                                    C75<\/strong><\/td>\n0.70 – 0.80<\/td>\n–<\/td>\nSuperior toughness\/flexibility balance.<\/td>\nSpring-tempered industrial blades.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

                                    6. Blade Strip Steel Heat Treatment & Hardness Logic<\/h2>\n

                                    The hardness of our strip steel is carefully tuned to the application:<\/p>\n

                                      \n
                                    • Carbon Steel (HRC 56-62):<\/strong> Maximizes the “martensite” fraction for absolute hardness. Essential for dry slitting where abrasion is the primary wear factor.<\/li>\n
                                    • Stainless Steel (HRC 46-56):<\/strong> Optimized for Edge\/Toughness Balance<\/strong>. Lower hardness in stainless often yields better results in grid-making to prevent the thin “walls” between slots from cracking during assembly.<\/li>\n<\/ul>\n