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. Material Machinability Chart - Machinability of Metals The metal with a machinability rating smaller than 100% means it is more difficult to machine than B-1112 (carbon steel 1212) and materials with a rating. 5 yrs CN Supplier . May 9, 2021 | Steel Products. 1 For the purpose of this definitions shall apply. 32% – the focus of military grade standards is primarily on two criteria: hardness and ballistic limit. It’s often referred to as Hadfield steel, or Hadfield grade, as Sir Robert Hadfield discovered it in 1882. AR400 steel falls between 360 BHN and 440 BHN, whereas AR500 steel falls between 477 BHN and 550 BHN on the Brinell Scale. Mangalloy is made by alloying steel, containing 0. 1-800-745-3962 [email protected] Shipping; Home;. Now when I drill like that, I use steel targets for my pistols, and cardboard IDPA targets for the close-range carbines (under 50 yards). C. Hesco L210 vs AR500 level 3+ LW Both are the same price and weight. The weight of steel armor varies depending on the thickness and size of the plate. Its resistance to wear is astonishing, as it resists heavy wear, slide wear, and rub wear. AR500 | AR500F Steel Plate. AR700. Medium carbon steel is stronger than low carbon steel but is more difficult to form, weld and cut. Amuda, in Reference Module in Materials Science and Materials Engineering, 2017 6 Work Hardening. . Stainless steel is known for its corrosion resistance. 56 are made of AR550 steel and 3/8″ or 1/2″ thick. This curved armor plate has our durable FragLock™ coating and is especially mobile at just 5. I run an AR500 plate from a well known target manufacturer here on. It is also one of those classified in the super category. the "Anaconda" was especially challenging. 62x51/5. 50%. For over 50 years, customers in multiple industries have all relied on Clifton Steel products for the durability and. AR500 is a hardened steel that is commonly used for targets, armored applications, truck plows and in mining. 6% carbon), and High carbon steel (more than 0. The Brinell Hardness number differentiates the abrasion resistant steel grades. 55% (Max) Nickel: 1. AR500: This grade of steel is fabricated through heat treatment to achieve through-hardening as well as improved welding and forming capabilities. 005” (0. It is not easy to fracture and has long service life. Manganese steels usually contain at least 0. Carbon Steel (1050-1090, 5150, 5160) Plain carbon steel is one of the most popular materials used in axe forging. 56x45 m995, for the same type of tungsten-core AP rounds (18mm vs 12mm). 19 votes, 24 comments. 5” to 6” thick. Higher degree of carbon content in fine martensitic structure of RHA and AR500. AR500: 460-544 BHN Typically. The Brinell Hardness number differentiates the abrasion resistant steel grades. 1% to 0. Aside from the typical metals used to form steel, manganese is added to the mix to create this type steel plate. 05. AR500 steel plate is made of high-strength, low-alloy materials, including carbon, manganese, silicon, and small amounts of other elements. Manganese Steel Composition. Electrode classification is based on chemical Electrode classification is based on chemical composition of the electrode for solid electrodes, and chemical composition of the weld metal for composite electrodes. Medium carbon steel – Medium carbon steel has a carbon range of 0. AR200 VS AR400 vs AR450 vs AR500: AR steels are governed by a level of hardness, but not a specific chemistry. 2 REFERENCES The Indian Standards listed in Annex A are necessary adjuncts to this standard. Mangalloy is a unique non-magnetic steel with extreme anti-wear properties. An extra 50 Brinell goes a long way with. Protect your jaw crusher with expertly machined and easy-to-install cheek plates made from Tensalloy™. 4140 steel properties. Re: AR500 vs AR400 Steel?? AR400 = Holes at less than 300 yards. 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. Manganese does not have a special taste or smell. China United iron and steel limited produce ASTM A36 steel sheets and steel plates. I've hit it with 800 grain Barnes LRS and Lehigh 510-170 808 grain solid brass, it plates the surface gold-colored. AR400 vs. Spall will still go through and eat it up. Clad wear-resistant steel vs AR500 wear-resistant steel. rereleased in mid-2020. 56 M193s. Save with. 50% carbon content. We shot M855, M193, 5. . SAE steel grades. Cladding wear plates are more wear resistant because the cladding plate is made of an alloy to improve wear resistance. Therefore, AR400 will have a lower hardness than AR500 / AR500F. None of this is to say that steel armor. 8mm) from either end of the tubing. 1-800-745-3962 [email protected]Q&T Plate Grade. . Just to be clear, we are not official scientists here. High carbon steel – High carbon steel, also known as tool steel, has a carbon range between 0. T1 Steel vs A36 AEBL Steel - This steel is similar to 440 B. Manganese steel is an alloy composed mainly of iron (Fe) and manganese (Mn). Here is an experiment to try. Mangabraze. However, AR500 steel has a lower thermal conductivity than other steels, making it unsuitable for some high. Ultra Hi Strength Alloy Wear Plate. Yes it can be done, drill your hole as large as the customer will allow, buy a good tap (OSG, Emuge, Guhring, Nachi), use a good tap lube (Moly-Dee ), and go sloooooUse a cut tap and not a form tap, because AR has a super high tensile strength. Typical hardness range is 475/535BHN. 04%; Sulphur, 0. 1095 Steel for Knives. 3% carbon, 1. Here is an experiment to try. 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. I buy 3/8" AR500 minimum, usually the good. 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. Type Carbon Steel Modulus of Elasticity 30,000 ksi Poisson's Ratio 0. This contributes to AR 500 steel plates being used in shoots and conveyors, where there is more sliding abrasion. 98 per kg, while the same plate starts at $3. Is AR500 worth the added expense? Watch this video. Like all types of steel, this alloy is highly impact resistant and scores mid-range on the Mohs scale. 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. This specialty plate product is. This plate are hanging and not mount hard. PRESSURE VESSEL STEELS ASTM A517-F Same as A514-F, but produced. AR500 will take hits at close range from . It is easy to sharpen and stands up to corrosion. The carbon content is typically around 0. 65%. 20. About . About . You figure it out, AR500 stands for Abrasion Resistant 500 Brinnell! Converted, that's about 51 Rc. Reduce plate thickness up to 25% vs AR 500 (ie. 2″ -> 1. As with other abrasion resistant steels, it does not have a defined chemistry, but rather, grade is determined based on. 62x39/7. A529-50 offers an increased yield and tensile strength over A36 with less weight and a thinner profile. Wear bar should break cleanly at the notch. 2. Clifton Steel provides prompt delivery of railroad wear liners, coupler wear plates, shims, and other railroad wear parts. AR400F has a minimum Brinnel hardness of 360. AR550 is most widely found in the commercial body armor market and they can defeat all of the rounds listed above, including the common. The AR500 is even more formidable than the AR400 when it comes to abrasion resistance. > IIRC,most Reynolds steels use manganese as the stiffening alloy, although they do make a 4130. 28-0. Specifications AR400 / 400F AR450 / 450F AR450 / 500F; Hardness (BHN) 400 (360 min. When compared with AR400 steel, AR500’s increased surface hardness allows it to outperform in certain high-abrasion applications. 29 Density 0. The higher the concentration of Mn in the alloy, the greater its tensile strength and abrasion resistance. It is harder than other steels, like stainless for example, so it will maintain its edge better when exposed to hardened materials. For AR500 steel plate, the nominal harness is 500, and its range is 460 to 544. AR450 VS. 6% carbon). Plate thickness’ start at 3/16” and can go as thick as ten inches. Best Wear Resistance of any abrasion resistant plate. Light, thin, strong:. Hardox 550 comes in thicknesses of 10–50 mm (3/8–2") and widths up to 2800 mm (110"). With steel, you get all these features and could pay roughly $75 to $125 less per plate than ceramic. Manganese steel is less ductile than carbon steel. C. 21 – 0. Manganese steel has no equal in it ability to work-harden. AR400 vs AR500 steel plates are two of the most popular abrasion resistant steel plates in the world. It’s not really used for knives, either. 60%, and a manganese content ranging from . e. AR500. Finally, titanium is brittle and can shatter as opposed to distorting. AR500; Manganese Steel; AR250; A514; Chocky Bars; 4150 Steel Bar; Scrap & Recycling. Action Target can also provide through hardened steel targets and other steel products with certified Brinell hardness ratings of 550 and even 600. 2) SA516 Gr 70 plate. Can You Roll Form AR sheets? Due to the steel’s extreme hardness, AR500 plates are very difficult to form. Subreddit for both professional and civilian tactical gear. Mangabraze is a proprietary grade of wear-resistant alloy plate, field-proven for over 50 years in providing the longest life in heavy industrial wear applications. manganese, and so forth. And Mn16 belongs to high manganese steel, is a widely used wear-resistant steel, wear-resistant and impact resistant. PearlButter • Steel is a obsolete material for body armor, against modern threats. The MSRP of one Armored. 1. Reduce plate thickness up to 25% vs AR 500 (ie. Manganese Steel Properties. our company is a professional ASTM A573 Grade 70/A573 Gr. It seems to be of. Hankev is an industry leader in depth, breadth, and availability, serving over 1000 customers worldwide. April 2020 article for BallisticMag. It has a lower hardness of 360 – 444 BHN. 50 caliber, pistolized version of the AR-15 rifle. Ultima™ 501 is furnished at a maximum hardness to resist severe abrasion and moderate impact. 5% manganese, and small amounts of silicon, phos. Drinks cans are made of an alloy of aluminium with 1. 4140. I have a 1" plate 20" gong at 700, and nothing has marked it yet. 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. 6% compared to RHA and AR500 at 13. Damage on the stand and upright is consistent with that of the steel. Subgroups- low/mild carbon steel (up to 0. 50W Steel Composition. The hardness range of AR 500 is between 470 BHN and 530 BHN, making it more brittle than AR 400. It won. Second, manganese steel plate has good heat resistance, and can be processed into various containers. 308 168gr p. This option is ideal for people looking for extremely precise cuts for fine features. 5%, rounded to the nearest 0. Quenching: Heat to 820-850°C, quench in oil or water. 30% manganese, while low-carbon variants consists of less than 0. The Vickers hardness test was developed in 1921 by Robert L. The best steel targets for . 내마모강은 균일한 경도 (hardness)를 유지하도록 처리되어 S45C 열처리 강판과 비교할 때 최소 3배 ~ 10배의 내마모 수명을 보유한 특수강입니다. 1112 Steel) 20% Familiar Sellers McMaster. 2023-11-10T19:10:24-05:00 A recent customer commented about drilling holes through JADCO QT-PLUS ®. 4140 steel welding, 4140 steel machining, 4150 steel properties, 316 stainless properties, ar400 properties, ar500 properties. It, however, won't easily break thanks to the addition of elements such as nickel, manganese and silicon. Thicker mild steel doesn't have much ring. 308 I have rocked it at 25 yards with . Manganese steel is an alloy that contains between 10% and 14% manganese. 00” thickness offered in standard sizes (96” x 240”/288”) Get a Quote Ask an Expert. NM500 VS AR500. Unlike common abrasion-resistant plate, which focuses on hardness alone, the unique, rich chemistry of Mangabraze develops work-hardening toughness as well, to resist. AR500F has can resist more impact than AR500. A514 >3/4” to 2. 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. What is AR500 steel plate? Tensalloy™ AR500 steel is a grade of abrasion resistant steel plate that offers outstanding wear and impact resistance. 62mm FMJ 150fr @ 2750+50 FPS) > (ESAPI. Hardox ® 600 has been successfully used in cement. . (Steel Jacketed, Steel Core or Armor Piercing Ammo may damage the steel. Tool steel is any of various carbon steels and alloy steels that are particularly well-suited to be made into tools and tooling, including cutting tools, dies, hand tools, knives, and others. This can be an advantage because they are easier to cut, weld, and fit. It a superior alternative to AR500 plate because of its minimum hardness guarantee of 500 HBW. Ar500 is shit. Clifton Steel’s Tensaweld Mang-312 is a gas shielded, flux cored, stainless steel electrode designed to weld in all positions. 1-800-745-3962. 25% (making the material more ductile) produces low-carbon (or mild) steel. 25% carbon, some chrome, molybdemun, and manganese. Bar Fabrication Services; Plate Fabrication Services; Close; Technical Data. Though these two grades have. 25% carbon, some chrome, molybdemun, and manganese. AR600: 570-625 BHN Typically (less common, but available)S7 tool steel is generally more expensive than AR500 due to its high-alloy composition and specialized manufacturing processes. Hardox ® 550 always performs at typically 550 HBW — no matter the type of wear. Even thick plates quickly get holes and craters if they are made of. It's a pistol range, but occasionally a rifle sneaks onto it. 10% - 0. Scope. It also helps a bit with the tensile strength and hardenability of the steel. Hardox 500 is a bendable and weldable abrasion-resistant steel, with a nominal hardness of 500 HBW. AR500 VS. AR-500F is ideal when prolonged service life where abrasion is the primary cause of failure. 43% Carbon. – 4140 alloy steel has greater hardenability and strength than 4130. Neither was AR500 (or the AR500F variety) which is industrial steel meant to be used as abrasion resistant plating, thus the "AR" designation, with the 500 being the hardness. Its resistance to wear is astonishing, as. On the other hand, AR500 is ideal due to its high levels of resistance and. Specific steel grades (AR400 / AR450 / AR500) in various sizes are available for mining, cement, aggregate and related applications. It would be best to water jet the plates so no heat get into the edges and changes the heat treat properties at the edges. That’s why three types of abrasion-resistant steel have become popular choices: AR400 VS. AR500 Steel Physical Properties. AR400F is quenched and tempered. Origin: NM500 is a Chinese standard (GB/T 24186) for wear-resistant steel, while AR500 is an American standard (ASTM A36/A36M-08) for abrasion-resistant steel. Industries like aggregates, mining, shredding, railroad, steel mills, foundry, and others trust our steel wear plate products for their most. 04 max:8 = Nickel – Chromium – Molybdenum Steel. Mirro-Krome 60® (I. P) Machining Guidelines. 4. 25%, the manganese content is around 1. Birchwood Casey World Of Targets Qualifier Spinner Rimfire Target. When compared with AR400 steel, AR500’s increased surface hardness allows it to outperform in certain high-abrasion applications. 70 carbon manganese silicon steel plates Chemical Composition and Mechanical Properties, please feel free to contact us by email or calling. > It seems as though all of the steel recumbents are 4130 chromoly. Hankev is an industry leader in depth, breadth, and availability, serving over 1000 customers worldwide. Basic melting practices are required because of the severe attack on acid refractories. 75%. For sliding wear, it usually stays at a moderate hardness of 400-450 HBW. It has a small percentage of elongation, which means it is resistant to deformation and can withstand high-impact forces. This type of steel provides excellent strength and durability while also being cost-effective. Tensile strength of steel will show us how much tensile stress the steel can withstand until it leads to failure in two ways: ductile or brittle failure. 56 M855/SS109 (Green Tip) at a velocity of 2,780 FPS. Manganese: 1. This type of steel is often used in mining. AUS10A Steel Hardness. Metal Target. Characteristics and performance. 3. Hot rolling the steel can’t be done without the manganese combining with sulfur and oxygen. 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. We use it to sight-in at 1100 yards to ensure shooters will be on-target at 1000 yards during match competition. 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. Check out for the best AR500 steel targets. AR450 is not recommended for machining, but is formable. AR400 is a high-carbon alloy steel commonly used in mining, forestry, and construction. lightweight high yield. Ultima™ 501 (AR500) Wear Plate; Ultima™ 601 (600 BHN I. 40-0. PDF Version [91. O. A633 is high-strength low alloy structural steel. 06 NIJ certified" and are listed on the NIJ approved armor section. Mirro-Krome 60® (I. At its core, AR500 Armor makes use of a specially-designed and specially-made ballistic-grade 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. Aluminum manganese alloys: 3A21: Annealed: 70～100: 110～145: 19: 50: 71000: Semi-cold hardened: 100～140: 155～200: 13: 130: Aluminum-magnesium alloy Aluminum. P. AR500: This grade of steel is fabricated through heat treatment to achieve through-hardening as well as improved welding and forming capabilities. And if it does, it happens only when exposed to extreme impact wear. There are different types of steel, for example, AR400 OR AR500, that are produced to a specific hardness. And the lesser threats like a closer proximity M855 or M193. 99. A lot of people talk about ar500 and ar600, but those are industrial nomenclatures, and not actually steel chemical standards. 060% to 1. In fabrication and construction, the composition and grade of the steel plate materials used have a tremendous effect on the end product. Brinell Hardness Number (BHN). About;. In agriculture, both manganese and magnesium are used as fertilizers to improve soil quality and crop yield. 5% manganese, to improve resistance to corrosion. 20%; 2) Add manganese-based alloying elements; 3) Adding auxiliary elements such as niobium, titanium or vanadium: a small amount of niobium. AR500 is slightly stronger (in terms of tensile strength) than 400, by about 20-25%. Zr-0. 223 and it just leaves tiny dimples. In these terms, the AR500 is better than the T1. 31% carbon. The ar 500 plate price starts at $2. Introduction. 5 rounds of 7. 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. 5. These listings are proudly displayed as "0101. 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. Request a Quote for A514 Steel Plate. 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. Absolutely avoid anything AR500 regardless of what they offer for rifle protection. 3. General Info About MIL-A-46100. This alloy has high strength and excellent corrosion. ARMOX 600T is a nominal 600 BHN steel. But too much will significantly reduce the ductility. AR500 Steel Plate Sizes. The Mang-312 weld wire is formulated to weld dissimilar products such as manganese to Carbon Steel. NM500 VS AR500, Structural steel is a kind of steel which meets the strength of specific specifications. AR400F is quenched and tempered through hardened wear resistant grades of abrasion resistant steel plate used for high impact and abrasion resistance. J. ENDURA Steel Advantages. . It has a tensile strength of 64, 890 psi and a yield strength of 58, 800 psi. 1-888-564-7904 . Details. When compared with AR400 steel , AR500’s increased surface. Chemically, AR500 steel includes manganese, phosphorus, sulfur, silicon, chromium, nickel, boron, and molybdenum. Titus Manganese Steel work hardens to 550 Brinell & is non-magnetic. Enhances machinability by integrating with sulfur to form a soft inclusion in the steel, enabling a consistent built up edge along with a place for the chip to break. A514 >3/4” to 2. 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. AR500? Regarding heavy-duty equipment and machinery, working with the right materials is important for the project. If you need abrasion or wear-resistant steel materials, give us a call and. (L3 = 1 round of 7. Brochure. It exhibits excellent work hardening characteristics in service applications where impact and abrasion are prevalent. 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. Due to its high strength and wear-resistance abilities, A514 is typically used in applications such as construction equipment – like cranes – and large, heavy-load machines. To be fair, AR500 does sell exactly two plates which are NIJ certified- a polyethylene level 3 plate, and a level 4 ceramic. September 14, 2023 Materials materials, Steel Table of Contents What Is Abrasion-Resistant Steel? Advantages of AR Steel How Is Abrasion-Resistant Steel Made? Identifying Abrasion-Resistant Steel Uses of. Manganese: 1. Primarily used in military applications, but also in areas where high strength is required as both grades have elevated yield strengths (HY 80 – 80ksi, HY 100 – 100ksi). We shot two M2AP rounds. AR400 Steel Vs AR500 Steel. Dynamic Armor 46100® (Dynamic MIL-A-46100) is a high hardness ballistic steel plate product that is available in thicknesses from 3/16” through 2” (4. 1. Here are three common challenges that welding AR plates can present, along with their respective solutions. 31% to 0. Swedish Steel Oxelösund AB (SSAB) produces a number of grades of steel, which have previously been assessed against AP ammunition. The weight of steel armor varies depending on the thickness and size of the plate. As noted above, all you should have on AR500 plate is a very small divot about the since of the head of metal stick pin with . The basic components of pearlitic pipeline steel are carbon and manganese, generally speaking, the content is 0. $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. AR500: Abrasion Resistant: 470-540 BNH: MIL-46100: Military Grade: 477-534 BNH: MIL-12560: Military Grade: 330-410 BNH. In addition these grades are quenched / tempered and are also certified to MIL-S-16216. 2″ -> 1. 62 Tokarev, 3/8” or 1/2” plate will stop most 308 and 5. 938045. It only knocks off the paint. Hardox grades usually range from 400 to 600, while AR500 has a hardness level 500. That combo will take up to 50bmg FMJ (steel core) and all those you mentioned at 50 yards or less. Let’s start off with the pros of steel since it’ll be short. Brochure. . Specific steel grades (AR400 / AR450 / AR500) in various sizes are available for mining, cement, aggregate and related applications. If I told you it machines just like 12L14 would you believe. Rings better as well. The initial penetration values were quickly thrown together to make a playable game. 56x45mm or a round of 7. 2. 315” thickness offered in 48”- 65” wide, cut to your requested length. It is also used in ballistic armoring for. 02-27-20, 15:17 #7. The smelting of NM500 vs ar500, spring steel is very important. The much heavier versions, especially centered caliber model guns would require something stronger. What is AR500 Steel? AR500 steel is an alloy that contains added alloys such as carbon and manganese. 223 at 100 yards. Absolutely none of AR500's soft armor or steel plate is NIJ certified. Austenitic Steels: Non-Stainless. 4%: That’s not much manganese, but it does reduce the chances of ending up with brittle stee. Like all types of steel, this alloy is highly impact resistant and scores mid-range on the Mohs scale. 62x54 M80 Ball and higher velocity rounds. The Mang-312 weld wire is formulated to weld dissimilar products such as manganese to Carbon Steel. The high level of ferrite makes the weld metal very resistant to cracking, even when highly diluted. 85 g/cm3, 304 stainless steel is 8. 05%-0. A fabricator or end-user may pre-harden pieces or parts of manganese steel by vibratory peening or shot blasting. Its most common use is armor and it’s corrosion-resistant and holds up exceptionally well to extreme wear and impact. Machining. 900” (48. All of our products are maintained at very low impurity levels, making them well suited to welding and formability. 18-0. 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. Here are some reasons why AR500 is the industry standard: High hardness. Hardox 450 vs ar500, Q345B low alloy steel plate composition: 1) Low carbon: Due to the high requirements for toughness, weldability and cold forming properties, its carbon content does not exceed 0. Quality steel. It can also deal with high impact stress regardless of the temperature. Contact Clifton Steel to discuss how our wear plates can improve your industrial railroad applications. 25% carbon, some chrome, molybdemun, and manganese. Tasker, M.