H. The use of AR400 is in high wear resistance and is perfect for mining machinery and heavy-duty machinery. Lithium nickel cobalt aluminum oxide (NCA) battery cells have an average price of $120. Another key differentiator is applications. Under the right cold working conditions, the steel should work-harden to a very high hardness of approximately 500 to 600bhn. Email:tonyb@associatedsteel. We provide the Industry's Best Abrasion & Impact Resistant Steel. About Leeco. . It does seem to weld better. This is in sharp contrast to the situation in other European countries and Germany's domestic steel mills, which are. AR400 / 400F; AR450 / 450F; AR500 / 500F; AR600; Offshore And Marine Steel Plate. Home; About Us; Steel Products. ABS Grade A, B, AH36, DH36, EH36; API 2H Grade 50; Road Plate. AR400 F Steel Plate is formable grade of Abrasive Resistance Steel Plate designed to accommodate applications where a life of wear is the primary cause for failure among other grades of steel plate. 18250 Miles Avenue. I need to make a repair on something that receives a lot of abrasion. A572 is also a mild carbon steel, but the greater addition of certain chemical alloys – such as phosphorus, manganese and silicon – makes it a high-strength, low-alloy (HSLA) steel. 8-0. Binary ionic compounds are between a metal and nonmetal. Manganese is the 12 th most abundant element in the Earth's crust. Hardness range from 38/42 or 55/62 Rockwell “C” depending upon the application. P. The performance of the high manganese steel was compared to those of API 5 L pipeline steels commonly used in slurry transport, ASTM A1053 Gr. Rather, it occurs combined with other substances such as oxygen, sulfur, and chlorine. 5" thick to 4" thick. Manganese contributes to many bodily functions, including the metabolism of amino acids. The rules are simple, name the cation first and the anion second, giving the anion the -ide suffix. 200 ABRASION RESISTANT STEELS Approximately 235 BHN. A6 tool steel experiences minimal distortion compared to other air hardening grades or the oil hardening grades. Ambient outdoor temperature. C & D >2. Associated Steel Corporation is a reliable steel company that has been in business for nearly 80 years. ) Shaft; Mirraloy® HCP (C. Mangalloy is known for its high impact strength and resistance to abrasion once in its work-hardened state. 4140 is a great basic chemistry that is easily modified at the steel mill by use of additional elements to achieve additional, and/or, specific properties for specific industries or jobs. They also contain up to 0. The Ar400 Steel Plate offers a good bending capability and shows enhanced resistance to impact abrasion. 5” to 6” thick. 04% Sulfur; 5160 steel is exceptionally tough and resilient. except the hardness range is higher and it has more carbon and manganese than AR400. AR400F is produced through austentizing, water quenching, and tempering. AR450: 430-480 BHN Typically. I run an AR500 plate from a well known target manufacturer here on. Hankev is an industry leader in depth, breadth, and availability, serving over 1000 customers worldwide. It is often welded with the same procedures and filler metals as mild steel. Manganese is a chemical element; it has symbol Mn and atomic number 25. we can offer Abrasion Resistant Steel Plate,GB/T24186 NM400,NM450,NM500,HARDOX400,HARDOX450,HARDOX500 abrasion resistant steel. What makes manganese steel special? It has an extremely high impact strength and abrasion resistance in its hardened state. Manganese ranks second in importance among allying elements, next to carbon. AR400- better for impact applications, AR500- better for sliding applications. For extreme applications & media being processed, Clifton can also supply Cheek Plates in Tensamang™ (11-14% Hadfield Grade Manganese Work Hardening Steel) & Clif-Clad® Chromium Carbide Overlay, machined complete to your custom request. Big, big difference. AR500: 460-544 BHN Typically. Here are. While each grade is a pressure vessel quality high carbon low alloy steel plate, tensile strength varies among them. AR400 contains many of the same elements as other tool steel, according to Baldwin International, a company that makes a steel based on AR400. 13, EFeMn-A) E-FeMnA If welding Manganese to carbon or alloy Use Covered Stainless Electrodes (AWS A5. H. AR500 steel plate is chemically similar to AR400 steel plate, except the hardness range is higher and it has more carbon and manganese than AR400. P. ; Shop online 24/7 at. 2020. AR200 VS AR400 vs AR450 vs AR500: AR steels are governed by a level of hardness, but not a specific chemistry. P. A common carburizing method of AISI SAE 8620 steel is to heat up to 925 °C (1700 °F) at a potential of 0. It can be drilled, but flame,. 4% silicon and 1. If you need abrasion or wear-resistant steel materials, give us a. Manganese (Mn): 1. Manganese and some stainless steels and similar hardfacing products require no preheating, and welding temperatures should be kept as low as possible. Alpharetta, Georgia 30004. Manganese steel is known for its work hardening characteristic, meaning the more impact it takes, the harder the surface becomes. CF-8M and CF-3M are the cast equivalents of 316 and 316L, respectively. Introduction hardox 400 vs ar400 or hardox 400 vs ar400 materail. ALLOY STEELS – Added alloying elements into the steel such as nickel. A36 Steel is the American Society for Testing and Materials (ASTM) designation for carbon steel with a yield strength of 36,000 PSI. 5t can be used when bending parallel to the roll. You can find two types of hardness for steel plates AR235 is ideal for moderate-resistance applications. A quenched & tempered, through-hardened, abrasion-resistant grade of steel plate. It is a hard, brittle, silvery metal, often found in minerals in combination with iron. ) Shaft; Mirraloy® HCP (C. It is vital for the human body, but people only need it in small amounts. 5% nickel, 0. Given its low ~640g weight vs the 1. This includes carbon (. This is how we measure the total thickness of a finished Clif-Clad plate, with an overall tolerance of + or – 1/16 of an inch. Manufactured in the U. While all three types of abrasion resistance steel offer great hardness, they vary in. AR 400 plate. For example, ENDURA AR 430 has an initial hardness of 430 BHN but, as it withstands impacts, it will harden up to 560 BHN. The U. The AR235 plates are intended for moderate wear applications where it offers improved wear resistance relative to structural carbon steel. It's priced at $280, and an AD200 would be $300 or $350 (AD200 Pro). The main differences are hardness and strength, achieved through varying levels of carbon and manganese. Brinell Hardness Number (BHN) : AR200/AR235/AR Medium: 180-250 BHN. Summary. SLS 600 ® Induction Wear Pipe; CLIF-CLAD ® Overlay Pipe; G 2T ® Ceramic Lined Pipe; Steel Round Bars. When two metals are submerged in an electrolyte, while also. 5. AR500 has the highest tensile strength, so it is more durable and better suited for high-stress applications. These properties enable the material to withstand high levels of wear and make it a durable, long-lasting material. On the Brinell Hardness Scale, the product. Phone: 800. 2 Does not respond to heat treatment. Without its presence, the human body’s immune function, biochemical regulation of energy consumption,. The strength of the carbon steel can be greatly improved by properly increasing the manganese content in the HARDOX 400 vs ar400 carbon steel and adding some alloy elements such as vanadium, titanium and niobium. ASTM A633 Structural Steel Plate. Manganese steel vs carbon plateManganese steel and ordinary steel belong to carbon. 5%; Phosphorus. Bar Fabrication Services; Plate Fabrication Services; Close; Technical Data. ) 450 (429 min) 500 (450 min. AR400 is ideal for high-resistance applications. 030% (Max) Sulphur: 0. Hard to say on wear, as our opperators can burn off a set of ski's off of a Cat 6040 bucket in 3 months that are 4 inch thick 12 inch wide that are hardox or AR500 grade. The subsequent grade would be an alloy called 4340. Carbon steels are designated by AISI four-digit numbers. Thicknesses up to 3/8" can be hole punch but drilling is typically preferred. Steel grade ASTM A529 Grade 50 is high-strength carbon manganese steel for structural purposes that meets the requirements of ASTM A529/A 529M. Hankev International is a wholesales distributor of 11-14% Manganese Steel, AR400/AR450/AR500, Military Armor, A514 T1 steel in USA. 150” Speed 260 brazed, 330 throw-away Feed . 60 sa 516 gr. 56, 5. 6% carbon). Useful when using prehard 4140 Steel or 316 stainless steel. To put it simply, hardness is the resistance of the steel to penetration. 15-0. That’s an increase in hardness of 30%. Viltrox 24mm f/1. The quenching and tempering combined with the addition of carbon and manganese increase the hardness of it and by creating an impact-resistant surface it is well suited in handling abrasive materials such as cement, gravel, coals, earth and ore. It exhibits excellent work hardening characteristics in service applications where impact and abrasion are prevalent. The first difference between manganese steel and carbon steel is that mangalloy softens rather than hardens when rapidly cooled, then restores the ductility from a work-hardened state. Before being certified, MIL-12560 must meet Fragment Simulated Projectile standards, and is available in four classes: Class 1: Resists penetration. A36. C86300 / SAE 430B – Round Bar, Flat Bars, Square Bars, Pipe & Tubes. I guess depends on what he means as "better". The AD200, also known as the eVOLV 200 , is a speedlight and a bare bulb head and battery system. 2. 11-14% (Hadfield) Manganese Impact Steel. Clifton Steel Knowledge Center - Your source for today's most accurate information on AR Steel, Manganese Steel, Armor Plate, AR400, AR500, A514 & more! AR400 Steel vs. Details. . AR plate product numbers range from 200 to 500 and typically indicate the hardness of the material: AR200, AR400, or AR500 are examples. e. P. The A36 steel plate specification, on the other hand, does not cover multiple grades. 60. ) Shaft; Close; Metric Metals; Fabrication Services. While longevity is one reason why AR500 is used in steel targets, there’s a more important factor that makes it preferred. They can be easily. (1) handling machinery and equipment: unloading mill chain plate, hopper liner, grab the edge plate, and automatic tipper tippingRe: AR500 vs AR400 Steel?? AR400 = Holes at less than 300 yards. Differentiators include hardness levels, application uses, and cost. AR450: 430-480 BHN Typically. Ballistic reports available for thicknesses over 0. A quenched & tempered, through-hardened, abrasion-resistant grade of true mill bar. Compared to 1055 carbon steel, 1065 is harder and more durable. Call us. 59. Bar Fabrication Services; Plate Fabrication Services; Close; Technical Data. Titus Manganese will work harden from 280 BHN to 550 BHN—which is an increase in hardness of over 200%. 80 for 2-3 mm and increases as per the thickness. It adds about 20% to the machinability when. 40%. 44. The nickel and molybdenum content gives AR400 carbon steel the ability to resist wear better than all other carbon steel. We are in the process of replacing a horizontal drag chain conveyor handling (wet/damp) coal. Its toughness keeps its surface uniform, which in terms of shooting ensures a bullet doesn’t go flying somewhere it shouldn’t after impact. Workwear™ 14 (11-14% Manganese) Wear Plate & Wear Bar; Close; Chrome Bars. But as the name indicates, you often get a Brinell hardness rating of about 400. AR400F has a minimum Brinnel hardness of 360. The Anneal, Normalize, and Stress Relieve processes are different than normal heat treat because there is no quenching or tempering process. Manganese is a naturally occurring substance found in many types of rock. General Info About A588 Steel. 2% manganese. This is an abrasion resistant, “thru-hardened”, alloy plate (AR400) product. Abrasion resistant steel is a high-carbon alloy steel that is produced to resist wear and stress. Common trade names include Jess-Air, Diecrat, LO-AIR, VEGA, Apache, Orbit. It sports a high level of resistance to fatigue, has high ductility, and has good spring qualities useful for applications where flexibility is desired. Both 8" AR400. AR450 is not recommended for machining, but is formable. AR500: 460-544 BHN Typically. Service Temperature is 400°F. The carbon potential is close to eutectoid, maintaining a 1 h diffusion. The number in the material name (e. Manganese, Mn. Results of this investigation demonstrate how the high strain-hardening capability of the high manganese steel. AR500 is slightly stronger (in terms of tensile strength) than 400, by about 20-25%. It won. 321. A618 Hot-Formed High-Strength Low-Alloy Structural Tubing - Grade II--Benefits of A514/T-1 Steel Plate A514 steel plate’s chemical composition and heat treatment give the material greater toughness and strength compared to non-heat-treated carbon steel plate. AR450 is an abrasion resistant plate used in a variety of. Manganese plays an important role in hardox 450 vs ar400. Manganese is a cost effective solution for those applications that take severe beatings. Chrome hardness is Rockwell “C” 58/60. 1045 Steel Round Bars; 4150 Steel Bar; Tensaweld Welding. CARBON STEELS : – Roughly 90% of steel falls into this group. Subgroups- low/mild carbon steel (up to 0. 2. Here is an experiment to try. 4kg of the Godox AR400, it’s going to be much easier to use handheld, especially on long sessions where you might have to be holding this around your camera for quite a while. Re: My dumb question for the day AR 400 vs mild. Our main products are impact resistance 11-14% Manganese steel plate/bar, wear resistance Plate AR400, AR450, AR500, Military Armor 12560/46100 and A514 (T1 steel), A572. However, with the proper welding strategies and system, ar500 can still be successfully welded. If. The hardness range of AR500 is between 470 BHN and 550 BHN, making it more brittle than AR400. 27. 50 dual-phase ferritic-martensitic stainless steel, and AR400 martensitic hard plate. ASC2250® LDX is a lean duplex stainless steel. Manganese is used to deoxidize and remove sulfur in steel when making steel. michael smith engineers limited 1. The method of distinguishing manganese plate from common carbon steel plate, HARDOX 400 vs ar400 is as follows:(1) Check the spray labelWhether it is manganese plate or common carbon steel plate, it has its own factory spray mark, just check it;(2)Listen to the cutting soundThe cutting sound of manganese plate is relatively clear and crisp. 5mm. 5 mm) thick plate, and at least 110 ksi (758. T-1 steel, unlike AR400, is an alloy steel covered by ASTM A514 / A514M - 05 (2009) Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy. 157 - 5. That is about it. C1020/1020 Steel Plate. 5” to 6” thick. It also contains small amounts of manganese, molybdenum, silicon, and vanadium. 75-1% Manganese; 0. AR400 VS AR450 VS AR500. 3/8” AR500. A588 is known for its atmospheric corrosion resistance thanks to a natural patina of rust that forms when exposed to outdoor weather conditions. If you need abrasion or wear-resistant steel materials, give us a call and. Bar Fabrication Services; Plate Fabrication Services; Close; Technical Data. AR400 or Wearox 100 for abrasion resistance. Godox has designed the R200 to be used in many. The end result will be a plate that ranges between 7/16″ and 9/16″ thick, hence 1/2″ nominal thickness. The typical Brinell Hardness range is 360-444 BHN. 04 percent) and phosphorous (. 45% molybdenum lean duplex stainless steel with corrosion resistance superior to 304L and comparable to 316L. The carbon content provides strength and hardness, while the manganese improves ductility and toughness. 1-800-745-3962 [email protected]Manganese is important in the processes that form bones, clots blood, and regulates blood sugar. 6% carbon), and High carbon steel (more than 0. Still, this is a typical chemical composition for AR400 steel: Carbon, 0. Great for shooters looking for a deal on handgun targets and rimfire targets. When welding Manganese to any other metal, use 309 or 310 SS electrode w/ minimum heat input (4) Plasma. AR400 has more Chromium and Molybdenum which increases its corrosion and wear resistance, as well as increasing its hardenability while reducing the risk of temper brittleness. It has carbon, manganese, copper, silicon and sulfur in its composition. Tensile strengths can reach up to 110,000 PSI depending on the composition of the specific alloy. This steel is often used in applications where formability and weldability. 1-800-745-3962 [email protected] Manganese is important in the processes that form bones, clots blood, and regulates blood sugar. Introduction. 1. For technical drawings and 3-D models, click on a part number. A36 is made in a fashion similar to most carbon steels. The advantages of this product include reduced waste and minimal lead time compared to the. Creusabro® Unique, best, Proven Creusabro®6400 is a new generation abrasion-resistant steel with high Manganese content (4 %). AR400; AR450; AR500; Manganese Steel; AR250; A514; Chocky Bars; 4150 Steel Bar; Scrap & Recycling. 50. Typical tensile strength is 180,000 PSI. Its function arises secondary to its inclusion within protein structures as a cofactor. As supplied, most manganese is furnished at a hardness of 225 to 250bhn. One cup of brewed black tea provides 23 percent DV for manganese, and it is also a great source of antioxidants. Mirro-Krome 60® (I. This grade is specified by the Department of the Army and is. Originally posted by Sonora Iron View Post. 89” and lengths up to 575. When using a torch, move rapidly and evenly to provide a general increase in temperature. ContinuedMalleability vs. 03-13-2010, 09:48 AM. Chromium carbide overlay plate begins with a mild steel base. The Anneal, Normalize, and Stress Relieve processes are different than normal heat treat because there is no quenching or tempering process. LDX 2101 possesses both superior strength and greater chloride stress-corrosion cracking resistance than conventional 300 series stainless steels. 50H. 3-0. 1230 E. Maximum rigidity is. NM is its first word of Chinese Pronunciation NaiMo ; Application: Crusher, sieve plate ,feeding hopper ,blade plate ,conveyor ,bucket ,cutting edge ,dump Truck ,scraper ,industrial truck, railway. This does not mean there are two atoms, but two types of atoms, so Al is a binary ionic compound. 45×39, 7. AR200, AR225, and AR235, all under the umbrella of AR Medium, or ARMED, is a medium-carbon manganese steel with moderate hardness that’s supplied nationwide across our 40+ branches. SOD is an enzyme that breaks down the free radical superoxide into smaller, less harmful molecules. E Over 4" thick to 6" thick. AR500 sheets commonly come in thickness ranging from 3/16″ to 2″ but most common use for Target Shooting is 1/4. The technical difference between AR400, AR450 and AR500 is the Brinell Hardness Number (BHN), which indicates the material’s level of hardness. Plates under 1. Our vast inventory includes a variety of sizes and widths of military aluminum armor plate all available for rapid delivery. For example, a 1/2″ nominal plate is typically a 1/4″ overlay applied to a 1/4″ of base plate. AR500 has higher abrasion resistance, but AR400 has higher impact resistance. It exhibits excellent work hardening characteristics in service applications where impact and abrasion are prevalent. 11xx series: the amount of Sulfur (S) is increased from 0. This grade steel is a high-strength, low alloy steel plate. 079 - 0. For example, a 1/2″ nominal plate is typically a 1/4″ overlay applied to a 1/4″ of base plate. Eventually, the customers and their team will be the best judge of which material is required for their project. For each property being compared, the top bar is ASTM A36 carbon steel and the bottom bar is ASTM A572 grade 50. I have both and from my experience the AR400 is much worse. Manganese +3 is highly reactive and can break down the chemical bonds of lignin, making it available as food for the fungus. AR400: This steel provides a high degree of hardness and strength because of its quenched and tempered chrome-moly, boron treatment. ZGD345-570. Our inventory includes steel, stainless, aluminum, red metals, alloys and tool steel. Brittlenes vs. O. When deciding between the two steels, take into consideration the end application and the quantity that you will need. Unlike most other grades that are designated by their chemical composition, the “36”. Here CNCLATHING. 3800 CHICAGO, IL. 2% manganese. Manganese steel is non-magnetic and is less likely to rust than carbon steel. Manganese is an essential mineral required for the body to function properly. 500 also has a higher hardness. AR400 has a tensile strength of 135,000 psi, while AR450 has a tensile strength of 170,000 psi. S. where E E is the molar absorptivity (or the molar extinction coefficient), L L is the path length or distance the light travels through the sample, and C C is the. Clad metal helps cut costs by using a thinner plate, yet lasting longer. Also, while Ar500 has high abrasion resistance, Ar400 possesses more impact resistance. Tony Bartinelli. Rhino-Tuf EZ Wear Bars & Wear Strips are manufactured from high quality, abrasion resistant ,“thru-hardened” AR400 steel. We cover the complete spectrum of impact resistant & high strength steels ( AR400 AR450, AR500) to stay competitive in the industrial market. According to foreign media reports, despite the impact of the coronavirus epidemic, most German screw Hardox 450 vs ar400 steel producers still maintain a good level of production. Both plates of steel are quenched and tempered to give them better toughness and abrasion resistance. hfw605s4 (ar400) ffw605s3 (ar500) florida ivory hfl602s8 (ar300) ivory matte hfl600s4 (ar400) ffl600s3(ar500) sandstone matte hft601s4 (ar400) ffl601s4 (ar500) lt. Zr-0. 2. EN8M steel is a free-machining grade and is readily machinable in any condition. Overview. Metals and Alloys - Bulk Modulus ElasticityAR400 should be about 42 Rockwell C. Like quenching and tempering, precipitation-hardening also involves two periods of re-heating and cooling steel plate. 1 mg (2613% DV) 1. A514 is a conventional quenched and tempered alloy steel plate designed for structural applications. 5%: To compensate for the low carbon level, AR400 steel has a relatively large amount of manganese. 20 percent), chromium (. Store the rods in those containers. bucket components, construction equipment and wear plates used in plows and farming equipment. ) Shaft; Mirraloy® HCP (C. P. 내마모강 (AR400,AR500) 2018. D3 steel contains 1. 338,000 PSI. O. H. Classification: High-strength carbon manganese steel. Compare Brinell hardness to Rockwell hardness. P. They have been engineered and are suitable for a variety of applications where impact and vibration service are prominent, such as mining/quarry, conveyors, material handling. 45 Carbon (C): 0. AR250 steel plates are made for improved formability with low levels of carbon and sulphur for inclusion shape control. 05% in plain carbon steels to 0. For instance, if you need high hardness that is deeper and more uniform, you could add Nickel to the 4140. O. Request a free quote on steel for industrial wear applications from Clifton Steel. Ar400 Wear Plate is designed with a minimum tensile strength of 1318mpa with a minimum yield strength of 1187mpa. Ductility Plastic deformation properties. Hankev International is a wholesales distributor of 11-14% Manganese Steel, AR400/AR450/AR500, Military Armor, A514 T1 steel in USA. Typical hardness is Rockwell “C” 28/34. AISI 4140 steel is a low alloy steel containing chromium, molybdenum, and manganese. Request a Quote for A514 Steel Plate. hardox 450 vs ar400 Vs Carbon Steel which is well received in middle east and Africa. An 80,000 minimum yield grade used in construction areas where added strength is a concern. Manganese: 0. 351,000 PSI. LDX 2101 (UNS S32101) is a 21. EN8M / EN8DM / 212A42 / 46S20. Typical hardness range is 400/440BHN. AR450: 430-480. which can be divided into high manganese steel, medium and low alloy wear-resistant. In short, it’s the perfect stuff to throw bullets at. As important as manganese is to our health, the body does not store manganese. 1°. 2. Since it’s an extremely durable and long. We can also supply Hardox 450 vs ar400 deep processing service for products Hardox 450 vs ar400 like cutting, drilling, bending, welding and grinding. Carbon steels have carbon as the key alloying element in their composition. 5 mg, 21% DV. Ar400 Vs Ar500 Abrasion Resistant 500 has more carbon and manganese content in its chemical composition and thus it has greater hardness compared to Abrasion Resistant 400 steel. ) Shaft; Close; Metric Metals; Fabrication Services. Hardox® 450 is an abrasion-resistant brand with a hardness of 450 bhn. Menu. Hardox 400 vs Ar400. Manganese is considered an essential nutrient and can be found especially in seeds and whole grains, as well as in smaller amounts in legumes, beans, nuts, leafy green vegetables and tea. 16. 5425 N Whitaker Road. 4% silicon and 1. Richey Road Houston TX 77073 Toll Free | 866. The Carbon content of AR400 steel is only 0. Mir50® Mir50® vs 304 and 316 Comparison Chart; Mir50® vs 410 and. These elemental differences help the steel achieve a higher surface hardness. Much like AR450 and AR400, AR500 steel is a specific type of abrasion resistant steel with a surface hardness of 477-534 BHN. Predictability and cost efficiency across a range of applications – that’s why customers rely on Raex® abrasion-resistant steel. Ar400 Wear Plate is designed with a minimum tensile strength of 1318mpa with a minimum yield strength of 1187mpa. AR500 and AR600 will last longer and need to be replaced less often for projects that actually beat up the material. com. This product is designed for applications that demand both wear resistance and impact toughness. Workwear 14 is a true austenitic 11-14% manganese steel (Hadfield Steel) product. C. The tensile strength of A514 alloy steel is specified as at least 100 ksi (689 MPa) up to a 2. Have a look at our machinability rating graph which without a doubt will make your decision a lot easier with its incredibly detailed information. he technical difference between AR400, AR450 and AR500 is the Brinell Hardness Number (BHN), which indicates the material’s level of hardness: AR400: 360-440 BHN Typically. Mirro-Krome 60 has an induction hardened layer that is a minimum of . AR500 is more of a carbon and manganese alloy. Specifications * Chemistry may vary depending on. Grade 70 has the highest tensile strength of them all, between 485 – 625 MPa. General Info About A656. Summary. Hardox® 450 is an abrasion-resistant brand with a hardness of 450 bhn. Mangalloy, also called manganese steel or Hadfield steel, is an alloy steel containing an average of around 13% manganese.