In their annealed form, all grades are easy . It has higher toughness than 440B steel and 440C steel. In most instances, the carbon content of the plate enables dual certification. It has optimum corrosion resistance within the . Grade 440C stainless steel is a high carbon martensitic stainless steel. Whether you choose 304 or 316 stainless steel comes down to your application and budget. Grade 440 stainless steels exhibit excellent resistance to mild acids, alkalis, foods, fresh water and air. Corrosion resistant only in the hardened condition. This grade is meant to provide maximum hardness and wear resistance with stainless properties. High Strength. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Cold Working Grade 440C stainless steel is slightly cold workable using common practices. AISI 304 stainless steel has the lowest . Examples include; 7Cr17MoV which has added Vanadium elements to increase wear resistance and strength. . Jay Fisher - Fine Custom Knives . The strength and resistance level of 440C stainless steel makes it just right for producing other items besides knife blades, such as bearings, mold inserts, nozzles, and parts on pumps. The stiffness and strength of 440 stainless steel are the main distinctions between it and related alloys. . 440C is a high carbon straight chromium high hardenability martensitic stainless steel, generally supplied in the annealed condition with a maximum Brinell hardness of 269 (Rc29) or annealed and cold drawn with a maximum Brinell hardness of 285 (Rc31).Characterised by good corrosion resistance in mild domestic and industrial environments, including fresh water, organic materials, mild acids . Alloy Search. Grade 440C stainless steel strip is a high carbon martensitic stainless steel. AISI 440C Stainless Steel . Based on these physical properties, 440 stainless steel is the best fit for products whose main requirements are strength and durability. For maximum hardness and strength, a hardening heat treatment is necessary. Material Notes: Fe-17Cr-1Mn-1Si-.75Mo-1.1C. 440B stainless steel is used for cutting tools, measuring tools, bearings and valves. SS 440A, 440B and 440C stainless steel are AISI and ASTM standard high carbon high chromium martensitic stainless steel, SS440 has high strength, good hardness, corrosion resistance, wear resistance and high temperature dimensional stability. 20lb Steel Club for Grip Strength and Shoulder MobilityAge 59 440C has tremendous wear resistance, strength, toughness, and exceedingly high corrosion resistance. […] 440C (UNS designation S44004) . 440C is usually used in bearing assemblies, cutlery, pump parts and textile equipment. The higher carbon content in 440 produces a much more difficult and robust product than other alternatives. Due to high carbon content, it is 0.95-1.2%, and the Cr . The ultimate tensile strength is the maximum on the engineering stress-strain curve. 440C Steel Properties & Composition (UNS J91601) - Martensitic Stainless Steel. Just a few of the characteristics of 440 stainless steel include its high strength, moderate corrosion resistance, excellent hardness, and wear resistance, to name a few. BROWSE CATALOG. The steel has good hardness as well as good wear resistance. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). Grade 440C stainless steel is the best steel in the 440 series, it has the high carbon content among the three 440s', offering excellent hardenability, good wear resistance, and good corrosion resistance. Of the five materials, 440C stainless steel has the highest specific strength, followed by 4130 alloy steel, 7075-T6 aluminum, and 2024-T3 aluminum. This balance depends on the use, exposure, strength, and corrosion resistance needed for particular applications. As for phosphorus, it improves the overall strength of 440C steel, while molybdenum enhances its toughness, deep hardening, and wear resistance. Grade 440B stainless steel is a high carbon martensitic stainless steel containing good strength, moderate corrosion resistance and ability to obtain and . 440C can be hardened to 60 HRC which is the best hardness of some other stainless-steel. It has the highest hardness, highest strength and greatest wear resistance of all of them after it has undergone hardening via heat treatment. 0,70% of Molybdenum: Increase Machinability and strength. It has good resistance to the atmosphere, fresh water and mild acids. The high carbon content yields very high strength at the expense of poor machinability, around 35%. Temperature can be increased up to 1038-1204°C (1900-2200°F). Other alloying elements contribute to grain refinement which improve blade strength and edge toughness and in addition enable for a finer . Although the alloy has a higher carbon content, there is enough chromium content to retain the materials stainless steel characteristics. This balance depends on the use, exposure, strength, and corrosion resistance needed for particular applications. Hardening To harden stainless steel 440C heat to 1010-1070°C, fully soak and quench in warm oil or air cool. The manufacturing specification for Alloy 440C is AMS A276. Type 440 Stainless Steel, which comes in four different grades, 440A, 440B, 440C, 440F, offers good corrosion resistance along with abrasion resistance. Grade 440C stainless steel is a high carbon martensitic stainless steel. Properties of 440A . 440a Steel Composition What is the hardness of 440a Steel? The addition of manganese also makes the material less brittle while giving its workability a good boost. Today, there are better steels around. It is a high-carbon alloy that is particularly well suited for hardness and strength parts. 440C is a martensitic stainless steel with higher carbon content than 3Cr13 steel, so its strength and hardness are higher than 3Cr13 steel. Includes material certificates and CAD models. . If annealed for maximum softness, Types 440A, 440B, and 440C Stainless Steel Plate can be moderately cold formed with only slightly more difficulty than the lower carbon, lower . 440 Stainless Steel Type 440A, 440B, and 440C Plate. Similarly, how hard can you heat treat 440c . Premium grade martensitic 440C Stainless Steel annealed sheet stock for making knife blades and folder liners. Extremely versatile, it's used in a wide range of industries to create specialized, small-scale products and is available in various types: 440A, 440B, 440C, and 440F. Annealing This grade is supposed to supply most hardness and wear resistance with stainless properties. Choose from over 550 440C stainless steel products in a wide range of sizes. AEROSPACE DEFENSE AND SPACE METALS . Grade 440C stainless steel is a high carbon martensitic stainless steel. Soak and cool very slowly in the furnace. Molybdenum strengthens and hardens steel, though its primary function is to stand up to corrosion from chlorides, such as salt. Grade 309 or 310 filler rods will, however, provide soft welds, having high ductility. Comparing two steels from the same family of steel is a fair game, right? Hence, it exhibits high strength. Stainless steel wire rods 440C Physical Properties . It is then slowly cooled at room temperature and fully annealed. It should not be heated below 927°C (1700°F). Yield Strength; 10,000 to 19,999 psi: 20,000 to 99,999 psi: 100,000 to 199,999 psi: 200,000 psi or greater: Not Rated: Fabrication. High carbon alloy contains 17% chromium, 1.1% carbon, 1% manganese, 1% silicon, and 0.17% molybdenum. 440 stainless steel, known as UNS S44000, is a type high carbon steel with the highest hardness, strength, and wear resistance. 440 stainless steel can be hardened and tempered in the same manner as alloy steel. Type 440 Stainless Steel, which comes in four different grades, 440A, 440B, 440C, 440F, offers good corrosion resistance along with abrasion resistance. 440A is a comparatively a low price, highly corrosion resistant chrome steel. As a martensitic stainless steel, 440C is magnetic and can be hardened by heat treatment. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. It is a bearing steel, and used in rolling contact stainless bearings, e.g. Stainless 440C is a high-carbon martensitic stainless steel. Grade 440C stainless steel is a high carbon martensitic stainless steel. Stainless Steel Alloy 440C is relatively easy to machine in the annealed condition. 440 Stainless Steel: Type 440A, 440B, and 440C . 440 stainless steel. 440B stainless steel has higher hardness and toughness than 440C steel. In stock and ready to ship. these have a higher . It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Like the 420HC stainless steel, knife blades and surgical tools are ideally created with 440C stainless steel. During welding, grade 440 stainless steels are pre-heated at 250°C, followed by full annealing. Be careful not to overheat or full hardness will not be obtained. Yield Strength 23 σ 0.2 ≥/MPa Elongation 65 δ5≥ (%) ψ - ψ≥ (%) Akv - Akv≥/J HBS 123-321 - HRC 30 - 440C Mechanical Properties Tensile strength 231-231 σb/MPa Yield Strength 154 σ 0.2 ≥/MPa Elongation 56 δ5≥(%) It can have the highest tensile strength among wrought martensitic stainless steels. For AISI 440 stainless steel datasheet, heat treatment and equivalent chart, please see the tables below. Type 440 attains the highest hardness of all stainless steel. Add to Cart. 3. Be careful not to overheat or full hardness will not be obtained. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Both AISI 316 stainless steel and AISI 440C stainless steel are iron alloys. 440C has the highest strength, hardness, and wear resistance of all the commonplace 440-series stainless . 440C Martensitic Stainless Steel (UNS S44004) Categories: Metal; Ferrous Metal; Martensitic; Stainless Steel; T 400 Series Stainless Steel. It is magnetic both in its pre-hardened and post-hardened states. 440 Stainless Steel: Type 440A, 440B, and 440C . Company Info. Product Description. It also improves the steel tensile strength. 440C can be hardened to 60 HRC which is the highest hardness of any other stainless steel. 440A has excellent quenching and hardening properties and high hardness. Typically used for molds, bearings, turbine components, aircraft structural parts, medical instruments, and cutlery Some examples include: Blades Cutlery Dental instruments Nozzles Valve components Grade 440C strip is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. The properties of 440c stainless steel 440c stainless steel is one of four 440 stainless steel types, including 440a, 440b, and 440f. Grade 440C steels exhibit corrosion resistance similar to that of grade 304 steels. Click for Details on this Alloy to Find out if it's Right for Your Sand Casting Needs . Ultimate tensile strength is often shortened to "tensile strength" or even to "the . With high strength, moderate corrosion resistance, and good hardness and wear resistance. FIGHTER JET METALS. 440a Stainless steel is a medium carbon, martensitic stainless steel with a range of applications in knives, and surgical tools. The stainless steel alloys shown in the table above were heated as sheet samples for 60 minutes per inch of thickness at 1800°F (982°C) for Type ATI 410 and at 1900°F (1038°C) for ATI 420, ATI 425 Modified, and ATI 440A alloys, and then air cooled to room temperature. 2. One of the hardest types of stainless steel after heat treating, 440C offers excellent wear and abrasion resistance. 17,00% of Chromium: For tensile strength and Edge retention, and enhances corrosion resistance and wear resistance. ball bearings and roller bearings. Hardness (Brinell): .00-269.00. Skip to content. Applications Aerospace - piston engine manifolds Chemical Processing Expansion Joints Another key element to consider is whether or not you can heat treat 440 steel. 304 vs 316 stainless steel strength That minimum 2.0% molybdenum in grade 316 also gives it more strength than 304. Grade 440C stainless steel is pre-heated at 760°C (1400°F). Grade 440C stainless steels are high carbon steels, which attain the highest hardness, wear resistance and strength of all stainless steel grades after heat treatment. Dimensions are 3/32" x 6" x 12". The corrosion resistance varies from good to moderate. 440C stainless steel is a high carbon type of stainless, this is the alloy most often used for knife-making. They have 85% of their average alloy composition in common. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. It also enhances wear resistance. This corresponds to the maximum stress that can be sustained by a structure in tension. Type 440C (UNS S44004) is a martensitic stainless steel with high carbon and chromium content. It's often used for bearings, valves, and knife blades. Type 440 Stainless Steel is a high-carbon chromium steel that can be hardened. 440C after heat treating is the able to attaining the very best strength.. . 440c stainless steel round bar is one of the fearured material of Beall Industry Group. Stainless steel 440C is a martensitic stainless alloy with 18% chromium 1.20% carbon. 440C is the AISI designation for this material. That said, there are some knife enthusiasts who look down on 440 steel. High Hardness. engineers' references. When strengthened using this process, 440 steels are the hardest of all the stainless steels, making them both abrasion-resistant as well as corrosion-resistant. .040 % MAX. Stainless 440 Steel Plate has high strength, moderate corrosion resistance, and good hardness and wear resistance. Overview: 440C Stainless steel is a type of modern steel and famous for its high corrosion resistant, wear resistance, strength and hardness qualities, among all the stainless alloys, capable of attaining (after heat treatment) the highest hardness (60 HRC). Can be heat treated for high strength and hardness. When tempering 440C a Rockwell hardness of 60HRc can be obtained. Yield strength (ksi): 65. 440B is used for cutting tools, measuring tools, bearings and valves. 440C knife blade steel pros, cons, comparisons, advantages, myths, truth. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and . 440C can be oil quenched to achieve maximum hardness. The product is highly suitable for use in applications where greater strength and moderate corrosion resistance is a consideration. They resist alcohol, food environments, fresh water, many petroleum products, organic materials and steam. Below 600 ° C, the high temperature strength is the highest among all types of stainless steel, and the creep strength is also the highest. High strength, good corrosion resistance, and good hardness and wear resistance. S44004 is the UNS number. 440C is a mid-range Stainless Steel from the 440 Series (440 A, 440B and 440C) high in carbon (Has more than 1%, which makes the highest carbon steel of the 440 series), it offers excellent wear resistance and corrosion resistance, used for budget and mid-range knives. Suitable for bayonet blade. 440C stainless steel coil: Type: cold rolled & hot rolled: Surface: NO.1 2b 2D: Width: 1250mm 1500mm: Thickness: 0.6 - 14.0mm: Other Grade: 201 304 310s 321 316l 410 420 430 436 904l: Contact Now. Tensile Strength Proof Stress Elongation A50 mm Hardness in the supply condition - 269 HBW (28 HRC) max Hot-finished . Machining of the alloy is much more difficult when hardened. 440C Stainless Steel Bar. Fasteners; . Tensile strength (ksi): .00-110.00. Grade 440C stainless steels are high carbon steels, which attain the highest hardness, wear resistance and strength of all stainless steel grades after heat treatment. Molybdenum improves the steel deep hardening and toughness. Chromium makes 440C stainless steel harder and more wear, rust, and corrosion-resistant. Facebook; LinkedIn; YouTube . The 'C' suffix stands for 'carbon' since it is the stainless steel alloy with the highest carbon content in the 400 series. Fabrication; Cold Drawn: Cold . Given that 440 stainless steel is very common in knives, it must be good. And it is, 440 stainless steel is great for knives. Martensitic steels . Click to see full answer. Often referred to as "razor-blade steel" due to its frequent use in the manufacture of razors and cutlery, grade 440 stainless steel provides high strength and moderate corrosion resistance. 440C Revised May 2008 Page 1 of 2 www.atlassteels.com.au Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness (Rockwell C 60) and wear resistance of all the stainless alloys. 1. 440 stainless steel grade possessed high carbon content and equipped with the highest hardness perfect for ball bearings and valve components. The key difference between these two steel grades is that 440C contains higher carbon content and will . . After heat treatment, it is capable of attaining the highest strength, hardness and wear resistance of all stainless alloys. Soak and cool very slowly in the furnace. Ultimate tensile strength of martensitic stainless steel - Grade 440C is 760 MPa. Type 440C balls are uses in bearings, valves, locking mechanisms, fasteners and quick-disconnect couplings. To anneal 440C stainless steel, heat uniformly to 840-875°C. 1.00% Manganese increases the steel strength, hardenability, and hardness. Properties with values for just one material (5, in this case) are not shown. A smooth polished surface also helps grade 440 steels resist corrosion in tempered, passivated and hardened conditions. For each property being compared, the top bar is AISI 316 . This lends itself to applications such as high-quality knife blades, razor blade, high-grade woodworking tools such as chisels, surgical and dental instruments, valve components, and ball bearings. Certain metalwork processes are more complex when working with 440, so most common applications have relatively simple shapes. Type 440 stainless steel, which is available in four grades: 440A, 440B, 440C, and 440F, has good corrosion and abrasion resistance. When heat-treated, it achieves the highest hardness values of any stainless steel grade. ASTM A276 standard grade 440C stainless steel is a high carbon martensitic stainless steel. 440B and 440C. PHYSICAL PROPERTIES SUS440C, and SUS440F (easy to process type).SUS440 belongs to high-strength cutting tool steel, which is martensitic stainless steel. 440C is typically used in bearing . Despite this carbon content, the chromium content is sufficient to retain its stainless characteristics. As a martensitic stainless steel, 440C is magnetic and can be hardened by heat treatment. AISI 440C stainless steel is a martensitic stainless steel formulated for primary forming into wrought products. SS 440A, 440B and 440C stainless steel are AISI and ASTM standard high carbon high chromium martensitic stainless steel, SS440 has high strength, good hardness, corrosion resistance, wear resistance and high temperature dimensional stability. These properties make Knife Blade Materials. Tempering When tempering 440C a Rockwell hardness of 60HRc can be . 440C stainless steel has greater abrasion and wear resistance for use in bearing and bushing applications. There are 31 material properties with values for both materials. engineers' references. 440A - 440B - 440C - 440 STAINLESS STEEL per AMS 5631, AMS 5632, AMS 5618, AMS 5630, AMS 5880, QQ-S-763 Vac Melt. Stainless 440C is a high-carbon martensitic stainless steel. The steel is not expensive; the heat treating is, and few knife providers are willing to invest in advanced processing for these . Be careful not to overheat or full hardness will not be obtained. But in most cases, 440C stainless steel's corrosion resistance is better than other stainless steel. To anneal 440C stainless steel, heat uniformly to 840-875°C. The high carbon content in 440C provides high hardness and strength. Machining Grade 440 stainless steels can be easily machined in their annealed state. Suitability. 440 has been around for a long time already. These properties make Despite this carbon content, the chromium content is sufficient to retain its stainless characteristics. Type 440 Stainless Steel, as known as "razor blade steel," is a hardenable high-carbon chromium steel.When put under heat treatment it attains the highest hardness levels of any grade of stainless steel. Hardenable high-carbon chromium steels designed to provide stainless properties with maximum hardness ; Have maximum hardness together with high strength and corrosion resistance in the hardened and stress relieved condition ; Always used in the hardened or hardened and stress relieved conditions . 440A and 440C are from the 400 steel series. The other popular improvements of 440A are the 440B and 440C steels. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. In its first days, everyone saw it as premium steel. WINFAST STEEL INDUSTRIAL LIMITED: View Contact Details: Product List: Grade 420 filler rods can be used to achieve a high hardness weld. 440A stainless steel has a Rockwell hardness of 55-58 HRC. Once heat-treated, 440C achieves the highest hardness and wear . 440C and 440F steels 0.95-1.20% Carbon All 440 steels are hardenable, meaning they gain additional strength via heat treatment, and they are considered a high carbon alloy steel. Grade 440C is capable of attaining, after heat treatment, the highest strength, hardness and wear resistance of all the stainless alloys. Its very high carbon content of 1.0% is responsible for these characteristics, which make 440C particularly suited to such AISI type 440C stainless steel balls offer the maximum in material strength and fair corrosion resistanc. Machinability . Hardenable high-carbon chromium steels designed to provide stainless properties with maximum hardness ; Have maximum hardness together with high strength and corrosion resistance in the hardened and stress relieved condition ; Always used in the hardened or hardened and stress relieved conditions . To harden stainless steel 440C heat to 1010-1070°C, fully soak and quench in warm oil or air cool. 440C stainless steel falls under the high carbon martensitic stainless steel category. Hardened Bearing-Quality 440C Stainless Steel Alloy 440 is the higher carbon (0.04 - 0.10) version of the alloy. Oversized Bearing-Quality 440C Stainless Steel The width and thickness are oversized for finishing to your exact requirements. Tempering When tempering 440C a Rockwell hardness of 60HRc can be . Elongation (%): 14. In addition, it can have the lowest ductility and has a moderately low . 440 Stainless steel alloy is a type of steel alloy. 440C Stainless Steel is a high carbon chromium steel. The high carbon content in 440C provides high hardness and strength. Temper for at least one hour. It is also used to make knife blades. 1% MAX. However, the softer 440A and 440B offer better stain-resistance and are a better option for salt water applications. We produce ASTM/ASME Grade 304, Grade 304L,304h, 316, 316L, . VG-10 Steel is a Japanese steel that has a great alloy blend and well balanced traits.. High chromium resistance is expected from this grade because of its 17% chromium content. In addition, 440C is martensitic. Otai steel supplies reliable quality of 440c steel materials. 1% MAX. Navigation Toggle. After more than 20 years the 440C Steel kept hit place a well-trusted steel for knives, . Hardening To harden stainless steel 440C heat to 1010-1070°C, fully soak and quench in warm oil or air cool. 440A steel is a basic alloy that has been improved severally to form more superior steels. Other properties . Buy Martensitic Stainless Steel 440C bolts, nuts and other fasteners from Boltport, an Indian manufacturer & supplier of Martensitic Stainless Steel 440C bolting materials to ASTM B446, B564, F467, F468, UNS N06440C, DIN EN 2.4856, AMS 5666 and BS 3076 specifications with properties adequate for high strength, corrosion resistant and high temperature applications up . Fresh water, many petroleum products, organic materials and steam when hardened out if &... Improvements of 440a are the main distinctions between it and related alloys, right the engineering stress-strain.. And good hardness and wear resistance of all stainless steel round bar is one of the hardest types of steel. Vs 316 stainless steel, heat treatment and equivalent chart, please see the tables.... Machined in their annealed state and fully annealed %, and hardness are higher 3Cr13! Are strength and greatest wear resistance of all the commonplace 440-series stainless is not expensive the! 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The Plate enables dual certification steel can be increased up to corrosion from chlorides, such as salt applications relatively... And hardens steel, knife blades and surgical tools to overheat or full hardness will not be heated 927°C! Should not be heated below 927°C ( 1700°F ) 440 stainless steel strength highest hardness 60HRc! Is a high carbon martensitic stainless steel strip is a fair game, right particularly well suited for hardness wear! Primary forming into wrought products it more strength than 304 when tempering 440C a Rockwell hardness any! They have 85 % of chromium: for tensile strength and durability to. Has excellent quenching and hardening properties and high hardness and wear resistance improved. Treatment and equivalent chart, please see the tables below welds, having high ductility family... % carbon, 1 % manganese increases the steel has greater abrasion and wear resistance all! Machined in their annealed state 35 % Machinability and strength of 440 stainless is. For bearings, valves, and used in rolling contact stainless bearings, valves, mechanisms! 440A stainless steel after heat treatment, the highest hardness of 60HRc can be hardened to 60 HRC is! To overheat or full hardness will not be obtained more superior steels ASTM/ASME grade 304 grade. Advantages, myths, truth strip is a martensitic stainless steel comes down to your application and.! A much more difficult and robust product than other stainless steel after heat treatment, the chromium content making! The ultimate tensile strength is often shortened to & quot ; x 12 & quot ; x 12 & ;... For enhanced creep resistance and strength and equivalent chart, please see the tables.. Is 0.95-1.2 %, and the Cr content yields very high strength hardness! High ductility common applications have relatively simple shapes and toughness than 440C steel annealing this grade is supposed to most! 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