01%. AR steel tends to come in between 235-550BHN. It is also one of those classified in the super category. We use it to sight-in at 1100 yards to ensure shooters will be on-target at 1000 yards during match competition. Birchwood Casey World Of Targets Qualifier Spinner Rimfire Target. 035% (Max) Silicon: 0. Perfect for industrial and structural needs. PearlButter • Steel is a obsolete material for body armor, against modern threats. As you know… harder steel may be brittle, and the other way around it may be soft. While both Hardox and AR500 are abrasion-resistant steels, there are some notable differences between them. Ultima™ 501 (AR500) Wear Plate; Ultima™ 601 (600 BHN I. AR500 plates can take a beating, as. If you need abrasion or wear-resistant steel. Buy Steel Plate Stock – Including Bisalloy, Hardox, & Strenx Steel Plate Products When you need to buy steel plate for your next construction project, no matter how big or small, you can trust Australian Steel to be able to meet your requirements. Clifton Steel’s Tensaweld Mang-312 is a gas shielded, flux cored, stainless steel electrode designed to weld in all positions. Generally, NM500 vs ar500, carbon wear-resistant steel plates are not sensitive to high temperature tempering brittleness, while binary or multi-element alloy steels containing chromium, manganese, nickel, and silicon are very sensitive. A529-50 offers an increased yield and tensile strength over A36 with less weight and a thinner profile. , Wolf) will crater the AR500 steel a lot worse (this should be obvious). Chapel is one of the vendors that makes this stuff. NM500 steel is typically produced in sizes that range from 8mm to 200mm thick, while AR500 steel is typically produced in sizes starting from 10mm and going up to 160mm. Strength. AR500; Manganese Steel; AR250; A514; Chocky Bars; 4150 Steel Bar;Outside diameter measurements for A500 carbon steel tube must be made at positions at least 2” (50. In the case of 4140, there is . 5″) Ability to “Work Harden” from 470 BHN to 560 BHN. 0 g/cm3, aluminum is 2. Rings better as well. We provide the Industry's Best Abrasion & Impact Resistant Steel. The most famous of these steels is the 1095 steel, which is a popular option for many budget knives. Titus Manganese will work harden from 280 BHN to 550 BHN—which is an increase in hardness of over 200%. Manganese Steel Composition. These two factors make it one of the strongest, most durable forms of steel available today. 1-800-745-3962 [email protected] Q&T Plate Grade. Hesco L210 vs AR500 level 3+ LW Both are the same price and weight. But now with a better coating and offering a build up, the coating actually holds up better than ceramics and poly against multiple rounds. AR400 steel is a high-carbon alloy steel that is specifically designed for abrasion and wear resistant applications. for ceramic, and 6. . 1-800-745-3962. AR550 steel is one of the more abrasion resistant steels available. AR400F has a minimum Brinnel hardness of 360. The Armored Republic A3 plates are advertised to be multi-hit capable providing edge-to-edge protection against 7. Any need in HARDOX 500 vs ar500 ASTM A573 Grade 70/A573 Gr. AR400 steel has a variety of benefits that makes it an ideal substitute for almost any application where excessive wear is a problem and ease of fabrication is needed. Manganese Steel. D. 1) Can be multi-hit capable. Pure manganese is a silver-colored metal; however, it does not occur in the environment as a pure metal. The Highcom "AR1000" (maxkek) is rated for M193 at 3300 fps -- which is far beyond what anything made by AR500 Armor can take -- and it's also lighter than any steel plate made by AR500 Armor. The high level of ferrite makes the weld metal very resistant to cracking, even when highly diluted. With that said: 1) 3/8" AR500 plate won't hold up as well as 1/2" AR500 plate, not due to surface hardness but just general toughness. SAE steel grades. 00%. You figure it out, AR500 stands for Abrasion Resistant 500 Brinnell! Converted, that's about 51 Rc. Manganese: 1. 62x39/7. Now $ 2129. Rather, it occurs combined with other substances such as oxygen, sulfur, and chlorine. Typical hardness range is 475/535BHN. 62x51mm NATO M80 ball, 5. AR550 and AR600 plates of the same size would be lighter due to their increased thickness and hardness. It, however, won't easily break thanks to the addition of elements such as nickel, manganese and silicon. 60%, and a manganese content ranging from . This article aims to explore the similarities and differences between AR400 vs AR500 steels, providing a comprehensive. The “AR” in AR500 steel actually stands for Abrasion Resistant, while the number, in this case 500, indicates the Brinell Hardness Number (BHN) which falls within 460-544 for most AR500 steel. rereleased in mid-2020. Clad wear-resistant steel vs AR500 wear-resistant steel. Light, thin, strong:. Abrasion resistant steel is typically used in applications requiring high wear resistance, including backhoe buckets and teeth, bulldozer blades, dump truck beds, ore and coal. None of this is to say that steel armor. Renowned for its high impact strength and resistance to abrasion in its hardened state, the steel is often described as the ultimate work hardening steel. However, AR500 steel has a lower thermal conductivity than other steels, making it unsuitable for some high. 62 Tokarev, 3/8” or 1/2” plate will stop most 308 and 5. On average, a 10×12-inch AR500 steel plate weighs about 8-10 pounds. The 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. Ultima™ 501 is furnished at a maximum hardness to resist severe abrasion and moderate impact. AR500 will take hits at close range from . The lines allow for improved control of product, quicker response time, and the ability to offer special heat. It can be welded with a lowWe call the formula FragLock™ and we’re proud to announce that it is the new standard for all of our steel body armor plates. ASTM A516-70 Carbon-manganese-silicon steel plate for moderate and 156 lower temperature service in PV. This level of hardness makes it ideal for use in applications where heavy wear is expected. 11-14% Hadfield Manganese Steel is a nonmagnetic, impact resistant steel that is generally used for applications that are subjected to high levels of impact and hammering. 62mm NATO/. AR400 VS AR450 VS AR500 he technical difference between AR400, AR450 and AR500 is the Brinell Hardness Number (BHN), which indicates the material’s level of hardness: AR400, AR500, AR400 wear bar, AR400 wear plate, AR500 wear bar, AR500 wear plate, Chromium Carbide Overlay plate, 11-14% Manganese, Wear Pipe, Call now for free quote! Phone: 800. This. What is the difference between AR400 and AR500 steel? They’re fairly similar, but the AR500 steel is harder than AR400 (as the designation indicates). 4130 uses chromium and molybdenum. These steels are usually much harder and tougher than normal carbon steel. If you have any questions about our personal armor systems, give us a call at (520) 396-3335, or send. AR400 vs AR500 steel plates are two of the most popular abrasion resistant steel plates in the world. The “AR” in AR500 steel actually stands for Abrasion Resistant, while the number, in this case 500, indicates the Brinell Hardness Number (BHN) which falls within 460-544 for most AR500 steel. Manganese is a chemical element; it has symbol Mn and atomic number 25. Up to . A633 is high-strength low alloy structural steel. AR450: 430-480 BHN. The hardened surface, if not removed, will contribute to embrittlement and eventual fracture at the welded area. Hardox ® 550 always performs at typically 550 HBW — no matter the type of wear. Be careful about brackets welded on the back of any target. All of our steel body armor and ceramic body armor selections are made for optimal protection, premium comfort and exceptional value. AR 500 is similar to AR 400, but 25% harder because it contains more carbon. MIL-DTL-12560 Rev K. On the other hand, AR500 is ideal due to its high levels of resistance and. It is not easy to fracture and has long service life. Wrap bar with a cloth and carefully hit it with a hammer. 6% carbon). Action Target can also provide through hardened steel targets and other steel products with certified Brinell hardness ratings of 550 and even 600. What is AR500 Steel? 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. AR450 and AR600 steel plates are also available, but they’re a. S ome of the nice things about steel core body armor is that it can withstand multiple hits in the same area of the plate. 5” as traditional ceramic body. Manganese steel contains about 13% manganese. Made with a custom steel alloy blend, this level 3 plus protection defeats all pistols. Specifications. Specifications Specifications AR400 / 400F AR450 / 450F AR450 / 500F Hardness (BHN) 400 (360 min. Cut through base to white iron bond area. AR600 steel is a durable high-carbon alloy steel with excellent strength that’s supplied nationwide across our 40+ branches. Standard plate sizes that are 48" x 96" and 60" x 120". There are different types of steel, for example, AR400 OR AR500, that are produced to a specific hardness. AR400 is a high-carbon alloy steel commonly used in mining, forestry, and construction. 5” thick. If you’re looking for a little bit more serious protection and don’t mind the bulk, AR500’s Level IV Ceramic/PE armor might be. If I told you it machines just like 12L14 would you believe. 85 g/cm3. At 300, you might want to go to the 1/2". ENDURA Steel Advantages. Our enhanced in-house heat treat lines produce quenched and tempered armor steel plate. 62x51/5. A514 ¾” or less thick. Despite the inaccurate claims, AR500 steel is NOT surface hardened. manganese above the specified maximum will be permitted up to the maximum of 1. Medium carbon steel is stronger than low carbon steel but is more difficult to form, weld and cut. Aluminium 6082 is stronger than 7075 in tension, while 7075 is stronger in compression. 900” (48. The Hardox 450 vs ar500, wear-resistant steel plate has good impact properties:The wear-resistant steel plate has a double-layer metal structure. 223/. About;. Brochure. Since 1882, manganese steel has been the prime choice for a wide variety of applications requiring wear. AR500 steel plate measures between 477 and 550 BHN. It is designed to withstand thousands of. It exhibits excellent work hardening characteristics in service applications where impact and abrasion are prevalent. If I told you it machines just like 12L14 would you believe me? If you have to choose between A36 Plate and Ar500 Plate for shooting targets, A36 Plate is sufficient for smaller and low-powered bullets like 9mm from a typical handgun. O. A fabricator or end-user may pre-harden pieces or parts of manganese steel by vibratory peening or shot blasting. 40% carbon and 4150 has a . $30. A quick Google also pops up a brand of body armor plates called AR500. For example,. 8 times greater wear than mild steel. 4140 steel welding, 4140 steel machining, 4150 steel properties, 316 stainless properties, ar400 properties, ar500 properties. At Spirit Metals, we work with the mills on all custom sizes to meet your project needs. These grades are used in highly abrasive environments within the mining, cement, aggregate, and various ground engaging applications. 56 are made of AR550 steel and 3/8″ or 1/2″ thick. Manganese: 1. ) Wear Pipe; Rhino-Klad™ Clad Plate – Chromium Carbide Overlay; Workwear™ 14 (11-14% Manganese) Wear Plate & Wear Bar; Close; Chrome Bars. There isn't a lot of information other that it's hard and tough. AR500, or AR500F steel, is a high-carbon. Contact Clifton Steel, specializing in wear and impact resistant metals. Meanwhile AR500 / AR500F is not formable, but shows good machinability. For this testing, I am using a 0. The low carbon provides good welding characteristics and enhanced. As a high strength Carbon Manganese steel, ASTM A529-50 can be easily welded, and its ductility and durability make it a common option for bending and stamping projects as well as heavy duty applications. This element adds strength to the steel, making it resistant to corrosion and wear. Stainless steel is known for its corrosion resistance. Thicker mild steel doesn't have much ring. Manganese steel is non-magnetic and is less likely to rust than carbon steel. Like all types of steel, this alloy is highly impact resistant and scores mid-range on the Mohs scale. AR stands for abrasive resistant. Steel’s affordability has made it an increasingly popular material for body armor. With a hardness range between 477 – 550 BHN, AR500 is known for its toughness and excellent wear resistance, along with fatigue and corrosion resistance. TOTALLY FLAT SURFACES Steel targets need to have a perfectly flat surface in order to be safe for shoot -AR500 Armor plates are cheap, and in conjunction with a quality minimalist plate carrier you can have an armor package that will stop handgun, shotgun and rifle threats clear up to 7. General Info About MIL-A-46100. 15-1. Since 1971 we have provided personal service and steel fabrication expertise to a variety of industries including military, aggregates, mining, steel, glass, paper, scrap recycling and railroad. AR400 steel falls between 360 BHN and 440 BHN, whereas AR500 steel falls between 477 BHN and 550 BHN on the Brinell Scale. Manganese steels usually contain at least 0. 62x54R fire from a PSL fails to penetrate, and all fragmentation and spall is fully contained with our. Hot rolling the steel can’t be done without the manganese combining with sulfur and oxygen. 2″ -> 1. MIL-A-46100. 2. AR500 Armor, an Arizona-based manufacturer of hard and soft body armor, recently debuted their new lightweight line of Level III+ hard armor plates, which sport a Special Threat rating that defeats a wide array of common (and uncommon) threats. Smith and George E. With a hardness of 60 HRC it is a rock-solid type of stainless steel with a high carbon-content of approx. Differentiators include hardness levels, application uses, and cost. It’s not really used for knives, either. AR400-Mild Steel. Chemical Composition: The composition of NM500 and AR500 may vary slightly. 50-caliber 500 Auto Max cartridge, the AR500 packs a wallop in a modified AR-10 platform. The main differences are hardness and strength, achieved through varying levels of carbon and manganese. I decided to compare the various body armor plates available from Spartan Armor Systems to see which one performed the best. Valast® 450 :125” - . Type Carbon Steel Modulus of Elasticity 30,000 ksi Poisson's Ratio 0. Let’s start off with the pros of steel since it’ll be short. In the delivery condition, Creusabro® M exhibits a moderate. Steel Warehouse can supply the following sizes of AR500 Steel: . NM500 steel exhibits excellent wear resistance due to its high hardness level. AR500. AR500, or AR500F steel, is a high-carbon. 70 carbon manganese silicon steel plates steel in stock every month. Delivering a hardness of 550 Brinell, it offers a unique combination of excellent wear resistance, crack tolerance and workshop performance. It seems to be of. I have also found that the copper jacketed steel-core bullets (i. To give the best comparison I u. The AR400, on the other hand, only has a Brinell hardness rating of 360 to 440. 4130 contains 0. AR500 is slightly stronger (in terms of tensile strength) than 400, by about 20-25%. The “AR” in AR500 stands for “abrasion resistance,” and the “500” signifies itsBrinell Hardness Number (BHN). If your activities call for high wear resistance levels, you should choose AR400 steel. The density of common metals such as iron is 7. 62x39mm with PS mild steel core projectiles. 1. Is ur life not worth the money? Mrgunsngear 704tactical etc do tests for fun. You can learn more about our AR400 steel plate here. What is the difference between AR400 and AR500 steel? The Brinell Hardness number differentiates the abrasion resistant steel grades. Overview. 2″ -> 1. Strength. AR450 vs. The number of electrons in each of Manganese's shells is [2, 8, 13, 2] and its electron configuration is [Ar] 3d 5 4s 2. AR500 Armor. Abrasion resistant (AR) steel plate is a high-carbon alloy steel plate. 62x54R Military Surplus 147 grain steel core rounds on our off the shelf Level III 10" x 12" Plate at just 30 rounds! All 5 rounds of 7. The actual mixture of steel, chromium and other minerals varies, depending on the grade of stainless steel. Level III plates built from UHMWP/Dyneema are vulnerable to steel penetrators like M855 and M855A1. Cladding wear plates are more wear resistant because the cladding plate is made of an alloy to improve wear resistance. With a hardness range between 477 – 550 BHN, AR500 is known for its toughness and excellent wear resistance, along with exceptional fatigue and corrosion resistance. A529-50 Grade Steel. $430 to make steel useable, but even heavier, or $540 or so for hesco L210's, or TSG LevIII+ lightweight polyethelyne, or levIv RMA's. Chromium carbide overlay plate begins with a mild steel base. Ar500 steel is harder and more wear resistant than NM500 steel, making it a more effective material for industrial and mining applications. This is a low-grade stainless steel, known in the automotive industry as “muffler stainless” because that is what it is commonly used for. AR500; Manganese Steel; AR250; A514; Chocky Bars; 4150 Steel Bar; Scrap & Recycling. 1. Kloeckner offers A5656 in four different grades, including 50, 60, 70, and 80, and in three chemical requirements, type 3, type 7, and type 8. Manganese steel is an alloy composed mainly of iron (Fe) and manganese (Mn). 31% to 0. 99. It is used for its somewhat greater strength while still having good ductility. Introducing the ABREX TM Series. The reasons for the widespread use of Mn in steel metallurgy – in part also for cast iron – are its low price, its hardening effect in the. AR500 steel plate measures between 477 and 550 BHN. The application will determine whether you want an AR400 or AR500 wear-resistant steel plate. We are a stockist for Ar500 STEEL PLATE EQUAL GRADE NM500. ATS Series: ATS 34 Steel - This steel is very similar to 154 CM. Mangalloy is made by alloying steel, containing 0. 75″ can be cold bent to minimum inside bend radius of 1. Since it’s an extremely durable and long. Used by industries such as mining, forestry, quarrying, and construction. 2. H. The material is very resistant to abrasion and will achieve up to three times its surface hardness during conditions of impact, without any increase in brittleness which. ALLOY STEELS – Added alloying elements into the steel such as nickel. For over 50 years, customers in multiple industries have all relied on Clifton Steel products for the durability and. It won. ENDURA Steel Advantages. 4% Carbon. Hankev is an industry leader in depth, breadth, and availability, serving over 1000 customers worldwide. China United iron and steel limited produce ASTM A36 steel sheets and steel plates. Below are the details. 26mm) and smaller, the outside diameter may not vary more than ±0. Ar500耐摩耗性マンガン鋼ライナープレート厚さ3mm ~ 100mm , Find Complete Details about Ar500耐摩耗性マンガン鋼ライナープレート厚さ3mm ~ 100mm,耐摩耗性鋼板、マンガン鋼ライナープレート、 Ar500 鋼板 from Steel Sheets Supplier or Manufacturer-Tianjin Teda Ganghua Trade Co. The AR-500 is indeed a . 00% Manganese and 0. The A2 body armor from Armored Republic is thin, low-profile, and low-weight- giving you maximum mobility without compromising stopping power. Chapel is one of the vendors that makes this stuff. . It won. Machining. What is AR500 Steel? AR500 steel is an alloy that contains added alloys such as carbon and manganese. That extra 1/8” from 3/8->1/2 makes a huge difference in rifle durability. Of the wide variety of compounds formed by manganese, the most stable occur in oxidation states +2, +6, and +7. Wear bar should break cleanly at the notch. It’s important to note that despite the company’s name, these plates are not made of AR500. Nov 20, 2018One of the questions we hear most from our customers is "What is the difference between AR500 and AR550 targets, and which one do I need?" In this video, we. Free shipping, arrives in 3+ days. C. Manganese steel (also known as Hadfield steel) is much more durable than other types of steel because it contains 12-14% manganese. If you have to choose between A36 Plate and Ar500 Plate for shooting targets, A36 Plate is sufficient for smaller and low-powered bullets like 9mm from a typical handgun. 16:14. AR500 and AR550 are both designed to withstand many rounds of shooting. AR500F has can resist more impact than AR500. Its semi-auto action is perfect for big and dangerous game hunters, and it offers the maneuverability and customizability inherent in the AR platform. Clifton Steel provides prompt delivery of railroad wear liners, coupler wear plates, shims, and other railroad wear parts. Ar500 target steel plates vs a36 mild steelWebsite is a naturally occurring substance found in many types of rock. On the Brinell Hardness Scale, the product. 7075 Aluminum Black Nitride. Manganese steel is known for its high impact strength and resistance to abrasion. The hardness range of AR 500 is between 470 BHN and 530 BHN, making it more brittle than AR 400. 223 at 200 yards with minimal damage. You figure it out, AR500 stands for Abrasion Resistant 500 Brinnell! Converted, that's about 51 Rc. With a tensile strength of 247 ksi and a minimum yield of 187 ksi, it provides extraordinary Oct 7, 2021 | Steel Products Manganese steel is a steel alloy containing 11-14% manganese. That’s why three types of abrasion-resistant steel have become popular choices: AR400 VS. Manganese was first isolated in the 1770s. This alloy has high strength and excellent corrosion. In this case, Ar500 is preferable in the competition of Ar500 Plate vs. The 1055, as its name indicates, has an average carbon content of about 0. 13mm), of the specified size. Manganese steel has no equal in it ability to work-harden. This means that AR500 is overall significantly more impact resistant than AR400, and the addition of manganese increases its sheer strength. 3% carbon by weight. Carbon added during the formation of the steel plate substantially increases toughness and hardness, but reduces strength. A514 >2. Manganese (atomic symbol: Mn, atomic number: 25) is a Block D, Group 7, Period 4 element with an atomic weight of 54. In these terms, the AR500 is better than the T1. Re: AR500, what thickness needed for a . 4% manganese to increase hardness while reducing the carbon content to 0. Level III steel plates can stop all the following: 7. Ceramic isn't expensive. AR500 Level IV Ceramic. AR450 VS. AR500; Manganese Steel; AR250; A514; Chocky Bars; 4150 Steel Bar; Scrap & Recycling. H. While AR450 steel is similar to AR400 and AR500, there are some variances that make each unique. While targeted at more severe wear conditions, Hardox ® 600 can still be cut and welded, making it an excellent choice for high-performance applications. MIL-A-12560 is a rolled homogenous armor (RHA) specialty plate and is designed for applications that require maximum protection for ballistic purposes. AR500 vs AR550 vs AR600 Body Armor. When something other than a non-magnum pistol caliber is used on the range, he's careful to make sure it only goes at the AR500 target. What is manganese steel? Manganese steel is a steel alloy containing 11-14% manganese. 500 also has a higher hardness. AR400 vs AR500 steel plates are two of the most popular abrasion resistant steel plates in the world. Carbon : 0. AR450 and AR600 steel plates are also available, but they’re a bit less common. Duritium® Level IV armor weighs in at an incredible 5. The hot rolled steel is drawn through a sequence of reducing dies or rollers that cold-work the steel into a strand hardened form, improving mechanical properties. When compared with AR400 steel, AR500’s increased surface hardness allows it to outperform in certain high-abrasion applications. This is the best steel for targets that I know of. Manganese boosts the tensile strength and the hardenability of the steel. Strength. 75-1. With a Millermatic 180, you could do 3/16" (. That’s an increase in hardness of 30%. But for lower grade or even thinner metals, the smaller higher velocity projectiles, would disrupt the base metal at a metallurgical level worse than the bigger lower velocity projos. Some grades can be. Details. Aside from the typical metals used to form steel, manganese is added to the mix to create this type steel plate. Additionally, AR500 may be less widely available than S7, as it is used primarily in niche applications. Mills use a hardness test – the Brinell Test – to determine the category. 85 g/cm3, 304 stainless steel is 8. AUSTENITIC-MANGANESE STEEL CASTINGS — SPECIFICATION ( Fifih Revision ) 1 SCOPE This standard covers the requirements for austenitic manganese steel casti rigs. It is made by adding carbon and manganese to iron, which increases its strength and hardness. View Profile View Forum Posts View Articles Senior Member Join. 19 votes, 24 comments. 1J04 Lost Squirrel. Suitable for applications that demand higher wear resistance. 338lm. 70 carbon manganese silicon steel plates steel price, please do not hesitate to contact us. C1020/1020 Steel Plate. [1] Mangalloy is a unique non-magnetic steel with extreme anti-wear properties. Clifton Steel is the leading supplier of AR400, AR500, A514, Manganese Steel, and Armor Plate. 99. This permits A36 metal. AR500 Steel works for both handguns and rifles; Lower grades of steel can be dangerous and do not last as long; AR500 Steel is Heat Treated to a higher hardness of about 500 BHN; Other mild steel is not heat treated;Apr 19, 2009. AR500 is a quenched & tempered, abrasion-resistant grade of steel plate. 250) with beveling. Aside from the typical metals used to form steel, manganese is added to the mix to create this type steel plate. 62x51 M80 Ball at 2780 feet per second (FPS) 5. For AR500 steel plate, the nominal harness is 500, and its range is 460 to 544. 62x51 m993 penetrates 50% more RHA steel than 5. Manganese steel is more expensive than carbon steel. About . AR450 is not recommended for machining, but is formable. They can differ in thickness depending upon thAt 200 yards nothing but some magnum varmint rounds should be able to pit ar500, unless you're running a lot of steel core. Manganese alloy is not Magnetic and AR 500 or Mild steel is Magnetic. manganese, and so forth. A633 is high-strength low alloy. The main differences are hardness and strength, achieved through varying levels of carbon and manganese. 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. 25% (Max) Sulphur: 0. Higher degree of carbon content in fine martensitic structure of RHA and AR500. AR500 — Understanding Abrasion-Resistant Steel. For instance, you can attach AR400 to tools like digger blades and similar objects. 33 and varies based on the dimensions or any customizations of the grade. Action Target only uses AR500 or AR550 steel be-cause they provide the perfect balance of toughness and strength for shooting. Best Wear Resistance of any abrasion resistant plate. 8mm) from either end of the tubing. M J Steel presents our AR-500 Armor steel targets, and heavy duty stands. So 4140 indicates a molybdenum alloy steel containing 1% of molybdenum and 0. AR450 VS. Steel with particular properties and traits is created by adjusting the overall chemical composition or by altering the varied production processes such as rolling, ending, and. 308 Win. The degree of sensitivity varies depending on the type and content of alloy elements.