4140 steel plate hardness The common forms include: 4140 Alloy Steel 4140 HT – Technical Data 4140 HT is a medium carbon alloy steel heat treated to a nominal hardness of 28-32 HRC. 43% carbon and can be heat-treated to increase its hardness. The cold finished 4140 of the steel, such as strength, toughness, and wear resistance. 5 in. Can also quote 416 Alloy 4140 (AISI 4140) is one of the most popular direct hardening Cr-Mo alloy steel plates that have the ability to develop an extensive range of hardness and strength. com® Product Guide. These three alloys are very similar in terms of their chemical composition and properties. Alloying elements include chromium and molybdenum, and as a result these materials are often Hardness of 4140 steel at different temperatures. Alloying elements 4140 High Tensile Steel 4140 is a 1% chromium - molybdenum medium hardenability general purpose high tensile steel - generally supplied This will have little effect on case hardness 4340 STEEL ALLOY PLATE. AISI 4140 As Rolled Plate . Alloy 4140 (AISI 4140) is one of the most popular direct hardening Cr-Mo alloy steel plates that have the ability to develop an extensive range of hardness and strength. 4140 contains chromium and molybdenum as alloying elements and may be heat 4140 PREHARD is heat treated to a medium hardness (HRC 28/32) and is designated as 4140 HT. Is 4140 Steel Plate Good for High Temp Use? 4140 Alro stocks 4140 Annealed DCF alloy bar -a steel in the family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Heat treated 4140 steel also has a hardness of 269/341 BHN, like hot rolled, but at Specialty Steel, also has a turned ground and polished The level of hardness is selected to give useful strength while still maintaining the ability to machine the material into finished components. Learn more. Understanding 4140 Alloy Steel Plates. In addition, 4140’s fatigue strength is two to three times that of 1018, an important Penetration depth difference determines hardness level. The prehardened condition is heat treated to a medium hardness (HRC 28/32) and is designated The average machinability rating of 4140 steel is 70% (Annealed condition) You can find here a list of machinability Ratings for different Low Alloy Steels. Use A36 for general steel fabrication, 4140 for machining, T1, AR400, AR450, Hardox 400, and 708M40 Engineering steel delivered from stock. 8-19 thru 8-21 In conditions where localized hardness may be required, this steel is In this article, we will explore the 4140 steel heat treatment methods, heat treatment temperature & cycles benefits, and applications. The Vickers hardness values for the Control-QT-M and AM150-M See 4340 Steel Vs 4140 and EN24 Aq Steel Plate heat treatment/hardness chart. It can be heat treated to a hardness up to AISI 4140 Steel Alloying Elements - OTAI is a stockist from China. Any Quantity, Any Size, Delivered Anywhere! 4140 Alloy Steel Plates – Configurable Part Number - A - B - T Type Upper-Lower Surface Finish Plate Thickness Tolerance A, B Dimension Tolerance SCM440 F Q M -120 24 corrosion Uneven 4140 plate material hardness, this will lead to quick wear or breakage of the tool holders. The 4140 steel equivalents are 42CrMo4, SCM440, and 1. A Vickers hardness testing machine is used to apply a certain load of diamond or hard alloy indenter to 1045 steel is a medium-carbon steel with approximately 0. Balanced Hardness and Toughness: The 4140 ht steel plate achieves an ideal equilibrium of hardness and toughness through What is 4140 Steel Plate? 4140 steel plate is an alloy steel. For any inquiries about our 4140 steel plate or round bar, please contact us at jeremy@otaisteel. Ductility. Properties: Metric: Imperial: Tensile strength: 655 MPa: 95000 psi: Yield strength: 415 MPa: 60200 psi: Bulk modulus (typical for steel) 140 GPa: 4140 Steel: 4140 steel can achieve significant hardness levels through heat treatment, enhancing its wear resistance and durability. 197. AISI 4140 alloy steel can be possibility of producing 4140/4142 steel plates up to 3” in the normali zed condition to meet a surface hardness range of 269 to 321 HBW anywhere on the plate. ) round Material Notes: Normalized: heated to 815°C, air cooled. The level of hardness is selected to give useful strength while still maintaining the ability to machine the 4140 PH has the same industry standard chemistry as 4140 HR plate but with an industry standard Rockwell C hardness rating of 28 – 32. Stock sizes available or cut to size & fast shipping! The chromium imparts good hardness penetration while molybdenum provides hardness uniformity and strength. Quenched and Tempered : In Hardness: 4140 alloy steel plate possesses a desirable hardness range of 28-32 HRC, further enhancing its resistance to wear and abrasion. There are 31 material properties with In this state, 4140 steel typically exhibits a hardness value ranging from 197 HBW to 229 HBW. 4140 Annealing: Heat to 830°C-850°C. The hardness of the steel can be increased if it has a lower tempering TG&P 4140 and 4150 Steel. It can be heat treated to achieve a wide range of hardness values, making it suitable for 4140 Steel Bar 4140 HR Plate Oil Quenched & Tempered 4140 PH has a standard, industry recognized Rockwell C Hardness rating of 28 – 32. 4140 steel plate / flat / sheet: Hardness: 4130 steel has a moderate hardness of about Rockwell B92 or Rockwell C22. Our specialists excel in welding this material, ensuring each weld reflects our expertise. Understanding 4140 Steel. Vickers Hardness Test: This method is a commonly used microhardness testing method represented by HV (Vickers hardness). Heat-treated 4140 steel MECHANICAL PROPERTIES OF AISI ALLOY 4140 STEEL BAR, PLATES, SQUARE. In contemporary engineering, 4140 steel shines as a symbol of superior strength and durability. Huge selection of steel round, stainless round, and aluminum round. Effects of Common Alloying Elements in Steel; Hardness Conversion Table; What is tool steel? DIN & W-Nr Steel Specifications; Cutting Strategies for Achieving High Precision in 4140 Steel Read More →. 250” to 8” thick ASTM A-829 The amount of carbon present allows the steel to have a good hardness, toughness and wear resistance which make it category of practical engineering materials 4140 is a chromium, molybdenum, manganese containing low alloy steel. 4140 steel properties include a tensile strength of 95000 psi and a Brinell hardness of 197. Medium-carbon steel with high hardenability High Hardness: H13 tool steel exhibits exceptional hardness, making it suitable for high-stress applications. 4140 Steel Plate Cost Alro stocks 4140 CF Q&T -a steel in the family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Skip to content. 4140 alloy steel plate 4140 HRA & HTSR AISI /SAE 4140 (UNS G 41400)CHROMIUM-MOLYBDENUM STEEL Green HRA Yellow HTSR Size Range 3/4″ – 30″ TYPICAL APPLICATIONS SHAFTS, GEARS, BOLTS, COUPLINGS, 4140 is a 1% chromium - molybdenum medium hardenability general purpose high tensile steel - generally supplied hardened and tempered in the tensile range of 850 - 1000 Mpa Several factors can influence the hardness of 4140 forged plates: 1. Also referred to as SAE 4140, this steel grade has high hardenability, which means it can be heat treated to achieve high Applications for 4140 Steel. Its unique combination of strength, 4140 Steel Equivalent. Machining Ease: Annealed 4140 steel is much 4140 as-rolled plate is a chromium-molybdenun alloy steel that can be oil hardened to relatively high hardenability. These 4140 steel, also known as EN19 in some standards, contains higher levels of chromium and molybdenum compared to lower-alloy steels like 4130. 4140 annealed is supplied in the soft condition For example, 4140’s ultimate tensile strength is roughly half-again that of 1018 steel, as is its Brinell hardness in the annealed state. 321. 4140 steel can be hardened to achieve high hardness levels. Specific applications include 2. But some customer will need 4140 Alloy Steel stands out as a highly versatile and efficient material in the steel industry. The hardness of 4140 steel varies based on the toughness temperature Alro stocks 4140 HR Annealed -a steel in the family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Common heat treatment processes applied to 4140 alloy plate SAE-AISI 4140 steel is an alloy steel formulated for primary forming into wrought products. 4140 steel’s high carbon content enhances hardness but poses challenges for welding. Mechanical Properties 3. Otai Special Steel is stable supplier for Voestalpine & Thyssenkrupp, with ISO9001 Certified. Alloy 4140 plate is widely used for general purpose industrial machining. Supply Range for AISI alloy 4140 steel bar. 4140 Steel: Grade Anatomy. Heat Treatment. 4140 Steel can be heat A36 plate is the highest demand hot-roll steel plate in the world, Considered a mild steel due to hardness. Also hardness ranges for heat treated steel. It has chromium, molybdenum, and manganese. This medium carbon alloy grade is widely used for many general-purpose parts requiring high tensile strength and toughness. Carbon Steel Plate ; Copper AISI 4140 alloy steel round bar sheet plate belongs to medium hardenability steel. 45% carbon content, providing higher strength and hardness than lower carbon steels like 1018 but still falling short of 4140’s tensile strength and toughness. The chromium content provides good hardness penetration, and the 4140 Forging: Heat to 1150°C Hold until uniform. . 2. 3. EN19 tool steel ground bar can also be supplied, providing a high quality tool steel Excellent Hardness. Alloying elements include chromium and molybdenum, and as a result these materials are often A514 steel plate is a high strength, machinable, and weldable steel that Kloeckner Metals stocks across it nationwide. We have more than 20 years of experience in alloy steel. The steel must be Al-killed Tempering: Subsequent heating at a lower temperature to reduce brittleness while preserving hardness. So, when some customer needs higher hardness for 4140 alloy plate, AISI 4140 plate material IN as rolled / hot rolled This process is crucial in achieving the desired properties of 4140 annealed steel. 40% carbon, and alloying elements like chromium, molybdenum, and manganese, is a high-strength alloy steel. 4140 Chromium-Molybdenum Steel. 1045 Carbon Steel Plate Grades Chart Carbon Steel: A36, A572 GR 50, A588 (Corten type), 1045, A516 GR 70, A514 T-1 Carbon Alloy: 4130, 4140, 4340 Abrasion 4130, 4140, 4340. See more Grade 4140 can be surface hardened to 58HRC (typical value). Our specialists excel in welding this material, ensuring each weld reflects our Heat Treatment 4140-grade steel has 0. Abrading & Polishing; Building & Grounds; Electrical & What is the Hardness of 4140 Plate? Well, it depends on the different condition of 4140 plate you need. Applications. Supplied in the annealed or prehardened condition. For 4140 steel, 22 to 30 HRC is typical, depending on heat treatment. Request a Quote. Diameter (mm) Heat Treated Steel Bar Alro stocks 4140 HT DCF -a steel in the family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). 1103/1104, Floor-11, Roxy Cinema Opera House, Girgaon, Mumbai-400004 +91(22)-66363383. Hardness is another key mechanical property of 4140 steel affected by temperature. They have 72% of their average alloy composition in common. Metal Plate. Benefits of Annealed Hardness. we offer diameters, squares, and flats from stock. Also known as EN19 comes treated in the annealed as rolled or even T condition. It is important to know the harder the steel, the more brittle it becomes. Quenching, normalizing & tempering processes can increase the hardness Available Forms of 4140 Alloy Steel. Welding and forming of this What is 4140 Steel Bar? 4140 steel bar, composed of 98% iron, 0. 15 Jan. Known 4140 Steel, Annealed 4140, Prehard 4140, 4140 Turned Ground & Polished, 4140 Flats, 4140 Squares, 4140 Hexagons, 4140 Rounds. Our specialists excel in welding this material, We have a lot of experience in supplying 4140 alloy steel and 4340, and enjoy helping our clients achieve the results they require with the highest standards of service. Most sources recognize and tend to prefer quoting and requesting the Rockwell C 4140 Steel Plate: 4140 steel plate is strong and long-lasting, perfect for heavy machinery and construction uses. EN 19 tool steel round bar and flat sections can be cut to your required sizes. It also has decent weldability, provided appropriate preheating and post-welding procedures are followed to prevent cracking. 4 %µµµµ 1 0 obj >/OutputIntents[>] /Metadata 717 0 R>> endobj 2 0 obj > endobj 3 0 obj >/XObject >/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 These values are approximate and for guidance only. AISI 4140 also known as EN19 comes treated in the annealed as rolled or even T condition. Usually we have QT (quenching and tempering) for 4140 steel plate and have 28-32 HRC hardness in preharden condition. It can be tempered and annealed. Alloying elements include chromium and molybdenum, and as a result these 4140 Steel Bar, 4140 HR Plate, Oil Quenched & Tempered 4140 PH has a standard, and industry recognized Rockwell C Hardness rating of 28 - 32. G41400 AISI 4140 Steel, normalized at 870°C (1600°F), air cooled, 13 mm (0. This means that it can resist wear and abrasion well. Applications of Alloy Plate 4140. As a leading 4140 plate distributor, Universal Steel stocks 4140 from ¼” thick up to 12” thick, in multiple finished conditions including as-rolled, annealed and pre-hard. Metal Tube/Pipe/Bar. Our 4140 works well for high hardness needs such as 30-36 It is characterized by its high fatigue strength, torsional strength, abrasion resistance, toughness. The prehardened condition is heated to medium hardness (HRC 26/34) plate to be used as a Both AISI 304 stainless steel and SAE-AISI 4140 steel are iron alloys. This enables rapid quality checks onsite. 1 stockist with widest size range of Alloy Steel 4140 Plate in 4140 alloy steel is a very tough and versatile material used for rotating components that experience high stress. 4140 steel plate can be welded but need preheating due to its crack sensitivity. Both steels offer good Properties of 4140 Alloy Steel Plate. 4140 steel is a versatile low-alloy steel that Learn important details about alloy-steel 4140 and other metals using the OnlineMetals. Typical hardness of 4140 steel is about 28-32 HRC(Rockwell C scale) at room We have AISI 4140 PH alloy steel plate, 4140 ANN plate. In stock and ready to ship. Significant performance variations between batches, affecting product quality. 4140 Steel Round Bar: diameter 8mm – 3000mm 4140 Steel Plate: thickness 10mm – 1500mm x width 200mm – 3000mm 4140 Steel Grade Square: 20mm – 500mm Surface Finish: Black, We offer a variety of services for heat treated 4140 steel plate including plate cutting, annealing, grinding, machining & milling and fabricating. The anwser is Yes ! It’s ok and widely used as mold steel, such as 4140 alloy mold for car industry. **Heat 4140 Q&T is a steel in the family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Hardness (Brinell) Value. AISI 4140 steel has high fatigue strength and low notch sensitivity. In the heat We supply A829-4140 Heavy Steel Plate, a structural quality, alloy-steel plate that can be supplied as rolled, annealed, normalized/normalized & tempered. What is the hardness of A514 steel? It has a Brinell Hardness Number between 235 and 293 HBW. Hardness. It When comparing the mechanical properties of 4140 steel and H13 steel, factors such as hardness, toughness, and heat resistance come into play. Cool in furnace. FLEXOR®'s chemistry and mechanical properties are comparable, if not superior to 4140 alloy steel and %PDF-1. Phone: 800. Hardness range from Despite its hardness, steel alloy 4140 maintains good machinability. Techniques like the Rockwell test provide a numerical (4140 steel plate hardness) Steel News. Wear Plate; Rhino-Tuf® EZ 4140 High Tensile Steel 4140 is a 1% chromium - molybdenum medium hardenability general purpose high tensile steel - generally supplied This will have little effect on case hardness Alro stocks 4140 Q&T -a steel in the family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). 4140 PREHARD is heat treated to a medium hardness (HRC 28/32) and is designated as 4140 HT. The hardness of the steel can be increased if it has a lower 4140 prehard alloy steel plate and flat bar at Key Metals. AISI 4140 steel tensile strength is 95 Ksi (655 MPa) and Yield strength is 60. Annealed 4140 Steel, 4140 ann, cut pieces or full length bars (up to 24 Feet). It is used in a variety of industries due to its good Alloying elements and thermal treatments, such as quenching and tempering, greatly influence the hardness and strength of the steel. 5). 9300. We supply 4140 alloy steel plate, round bar, flat bar, square supply. Our 4140 steel plates will be checked 4140 Annealed is a high-quality, 4140 alloy steel intended for all mechanical uses where improved machinability, uniform hardness and excellent flatness are required. 7225. Cool slowly in ashes or sand etc. 4140 Steel is a high quality Quenched and Tempered Alloy Structural steel. 4140 steel properties for Kromite® CD, a modified 4140 steel compared to 1018 steel and 1045 steel, comparing Rockwell hardness, yield and tensile strength. Steel plate 4140 PH (Q+T) condition goes with 28~32HRC hardness 4140 Steel Hardness Explained: Delving into Its Toughness. Cincinnati Tool Steel Company Phone #: (815) 226-8800 (800) 435-0717 Fax #: (815) 226-4388 4140 Prehard/Annealed Hardness (HB) 262/321 to 3" incl. com or via WhatsApp at +8613610149979. After the implementation of the closure and control, the operation of the Shanghai port terminal has not been affected much at Pennsylvania Steel Corporation presents an alternative to SAE 4140 alloy steel. Full Transcript: With a nominal carbon content of point 40 %, it is capable of higher strength and hardness than 4130. For each property being Alloy steel 4140, also known as chrome-moly steel, is a versatile low-alloy steel with high tensile strength, excellent toughness, and good corrosion resistance. : Automotive Industry – 4140 steel finds extensive use in AISI 4140 alloy steel can be tempered at 205 to 649°C (400 to 1200°F) depending upon the desired hardness level. Summery: For turning operations on A reduction in hardness occurs as the base plate preheating temperature is increased (Fig. 8-15 AISI 4150 Hot Rolled . 4130 Alloy Steel. Maybe No. 4140 HT is After all, the hardness and quality of the 4140 steel plate must be consistent for specific applications, or it can affect the final product’s performance and quality. Rhino-Klad™ Clad Plate – Chromium Carbide Overlay; Workwear™ 14 (11-14% Manganese) Wear Plate & Wear Reliable steel supplier of prehard 4140 Steel, Annealed 4140 Steel, Prehard 4150 Steel, Prehard 4142 Steel and Annealed 4142 Steel. Through careful quenching and tempering, the alloy’s inherent potential is unlocked, resulting in a surface hardness that offers robust protection against wear and This article delves into the crucial aspect of 4140’s hardness, pivotal in determining its performance across diverse applications. BROWSE CATALOG. Alloying elements A little history and background on 4140 Steel in relation to other mild and carbon steels in the industry. 38 to 0. This chromium Steel Grade AISI 4140 . Range. This increased alloy One of the key advantages of 4140 alloy steel plate is its excellent response to heat treatment, which allows for the optimization of its mechanical properties. Its known for its high fatigue strength and its impact and abrasion resistance. So, when you see 4140 T Steel Plate, it means that you’re looking at a steel plate made of 4140 alloy steel that has been quenched and tempered to achieve a better balance of . It also contains a high toughness and Yet 4140 plate still offers good machinability and can be machined into complex shapes and precision parts as needed. Thru-hardening ensures our 4140 and 4150 steel are exceptionally tough and resilient. (around 0. Most sources recognize and tend to prefer The difference between common steel plate & abrasion resistant steel plate is significant, but the differences between AR400, AR450 & AR500 are more subtle. SAE 4140 (AISI 4140 steel)is a Cr-Mo series (Chrome molybdenum series) low alloy steel, the material has high strength and hardenability, good toughness, small deformation during quenching, high creep strength and long-lasting strength at high temperature. A36 Steel: The Versatility and Applications of EN19 Steel Processing. 30%), which gives 4140 better strength and hardness. All Fox Metals alloy steel grades are fully certified. precision “wear” component. 1 stockist with widest size range of Alloy Steel 4140 Plate in China with 4140 is an alloy steel that is supplied in either the annealed or prehardened condition. A572-42 A572-50: AISI 4140 is suitable for heavy-duty service because of Buy 4140 Alloy Round Online at Metals Depot - America's Small Quantity Store. 8-15 thru 8-18 AISI 4340 Hot Rolled . 4340 steel alloy plate is a high strength alloy that exhibits excellent toughness and ductility. There is a wide range of 4140 alloy steel forms suitable for different production needs. Services provided to Understanding 4140 Steel’s Properties. The hardness of 4140 can be modified through heat treatment processes like quenching and tempering. Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred AISI 4140 Alloy Steel StandardsStandards Physical PropertiesPhysical Properties CharacteristicsCharacteristics STAINLESS STEEL TECHNICAL DATASHEET SPECIALISTS Choose from our selection of grade 4140 steel in a wide range of styles and sizes. Common Uses of 4140 Steel Plate 4140 steel can be used for a wide variety of applications where Yes, we offer both annealed and quenched-and-tempered (Q&T) 4140 steel plates, while the QT hardness is usually 28-32HRC. One of the standout features of 4140 annealed Hardness: Rockwell C32 (Hard) Specifications Met: ASTM A108; Often called ETD-150, these rods are made from a modified version of 4140 alloy steel and have been drawn at high Thanks to its hardness, machinability, and corrosion resistance, there are many heat-treated 4140 steel applications, such as: Aerospace Parts Airplanes and space 1. Hardness Spectrum. 4140 LSS 4140 is the classic AISI 4140 alloy steel that is sold in the annealed condition at a hardness less than or equal to 217 HBW. 4140 is the designation in both the SAE and AISI systems for this material. If welding must be carried out, pre Grade 4140 is supplied in the hardened and tempered condition. They have a very high 98% of their average alloy composition in common. LSS 4142HT is a similar steel which is sold prehardened to 28 This high quality low carbon steel plate is intended for use in a variety of applications where the combination of machinability and lower hardness is required. The exceptional 4140 steel properties make it a prized material across various industries. We can offer AISI 4140 in bar form from stock, rolled and bright drawn, also plate. We understand your concerns indeed, which is why we provide Customers rely on Fox Metals for first-class alloy steels stocked in round bar, flat bar, and plate. Machinability: Depending on the specific treatment, it can reach hardness levels of up to 28-32 Rockwell C (HRC) for light sections like 4140 PH steel plate hardness and 22-27 HRC for heavier sections. It’s known for its high tensile strength and toughness. Welding is not recommended because of the likelihood of quench cracking occurring. Alloying Elements. Alloying elements include chromium and molybdenum, and as a result these materials are often informally referred Usually, it’s 28-32HRC hardness for 4140 prehard alloy steel plate. Rhino-Klad™ Clad Plate – Chromium Carbide The balance between hardness and ductility in 4140 steel represents a pinnacle of metallurgical success, providing a material that merges toughness with resilience. The versatility of 4140 steel plate makes it 4140 steel is a low alloy steel plate. For prehard 4140 plate, we keep hundreds of tons in stock for Understanding 4140 Steel’s Properties. . By 4140 steel’s high carbon content enhances hardness but poses challenges for welding. 4140 TFHT flats are readily available, and can be surface ground to Precisely assessing the hardness of 4140 steel plate is a meticulous endeavor aimed at ensuring material integrity. 4140 steel, with its remarkable prehard hardness and versatile Strength is a critical factor in metal uses, for example, some applications require stronger aluminum parts, while some products need high steel hardness or yield GATEWAY 4140 PH - Tooling Plate Prehardened Alloy Tool Steel Typical Chemistry Applications Heat Treating Gateway 4140 PH is a prehardened, high -quality alloy steel intended for all This medium carbon alloy steel grade is widely used for many applications requiring high tensile strength and ductility combined with hardness in the R/C 40 range. Learn more about it here. Our 4140 plate sizes are 2000 x Brinell is simply the measurement of hardness of the steel. Rhino-Klad™ Clad Plate – Chromium Carbide Overlay; Workwear™ To the OP: 4140HT (Heat treated) and 4140 QT (Quenched and tempered) and 4140 HTSR (Heat treated & stress relieved) and 4140 Pre-Hard are all basically the same AISI 4140. Alloying elements Alloy 4140 (AISI 4140) is one of the most popular direct hardening Cr-Mo alloy steel plates that have the ability to develop an extensive range of hardness and strength. Surface treatments such as nitriding or carburizing can be applied to enhance wear resistance and surface hardness. Online shop Contact. It’s designated as AISI 4140HT or 4140H. 2 Ksi (415 MPa) minimum. Both 4140 alloy steel material and 4150 are versatile and reliable for demanding industrial applications. This material was designed with consistent hardness and high strength. It’s more Both annealed SAE-AISI 4140 and ASTM A36 carbon steel are iron alloys. Request a quote! Chemical For preharden alloy steel 4140 plate, some customers would need to know what is the 4140 Prehard Alloy Plate Hardness? Usually, it’s 28-32HRC hardness for 4140 prehard If it’s supplied as rolled condition, 4140 steel plate is with low hardness, not higher than 230HB. Alloying elements AISI 4140 alloy steel can be tempered at 205 to 649°C (400 to 1200°F) depending upon the desired hardness level. Heat Resistance: By submitting a comment you grant AISI 4140 Steel Plate - Some customers ask us if they can use 4140 alloy steel plate mold steel. 4140 alloy steel represents a high-strength, low-alloy 4140 Gun Barrel Steel is a chromium molybdenum alloy steel with good hardness penetration. Low-temperature impact toughness is 4140 Alloy Steel Round Bar AMS 6349 – Plate – Sheet AMS 6395. 4140 annealed is supplied in the soft condition and can be hardened to RC 40. Minimum forging temperature 850°C. Bristol: 0117 403 1441 Exeter: 01392 790 275 Alro stocks 4140 HR HT -a steel in the family of SAE steel grades, as specified by the Society of Automotive Engineers (SAE). Alloying elements include chromium and molybdenum, and as a result these materials Alloy 4140 (AISI 4140) is one of the most popular direct hardening Cr-Mo alloy steel plates that have the ability to develop an extensive range of hardness and strength. ; 241/321 over 3" to Next Page. How do I know if 4140 plate is the right choice Dimensional Stability: 4140 steel plate maintains its shape and dimensions even under extreme temperature fluctuations, ensuring consistent performance. 4140 Sheet/Plate | 4140 Round Bar | Round Tube 4140 Metric. Regional Depots. Alloying elements include chromium and molybdenum, and as a result these materials are often Metal 4140, a chromium-molybdenum alloy steel, is one of the most versatile and widely used materials in industrial manufacturing. 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