Available thicknesses range from . 3% carbon, 1. 6107 e-mail: info@cliftonsteel. AR-500F is ideal when prolonged service life where abrasion is the primary cause of failure. Hardox® 450 is an abrasion-resistant steel with a nominal hardness of 450 HBW. 45 – 0. Advantages/Disadvantages This grade withstands wear and tear, and has good corrosion resistance. 0 on the Mohs scale and is highly impact resistant. 315” thickness offered in 48”-81” wide cut to your requested length. AR450 vs. 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. This material is an Abrasion Resistant, Thru-Hardened, Alloy Wear Plate. The figures below are representative of 15mm thick AR400 and AR500 plates. 3 mm [0. While still a carbon steel, trace elements are added to enhance material properties. a standard specification for black and hot-dipped, zinc-coated, welded and seamless steel pipe, is used for mechanical and pressure applications as well as ordinary uses in steam, water, gas. According to EN1993-1-1 §3. 3. If you’re already a Kloeckner customer, we invite you to shop steel plate on Kloeckner Direct. 10. com. Values of these properties are primarily reflected by its microstructures and chemical compositions. AISI 1045 steel is characterized by good weldability, good machinability, and high strength and impact properties in either. It has a tensile strength of 570 - 700 MPa and Brinell hardness ranging between 170 and 210. 4140 Chromium-Molybdenum Steel. Get a quote today! AR500 is a hardened steel that is commonly used for targets, armored applications, truck plows and in mining. Data sheet: C 1. 30 0. Full Member. Type 303 has mechanical properties that are comparable to both 304 and 316 stainless. bullet traps) and typically comes at the. "ratio of stress (force per unit area) along an axis to strain (ratio. As a result, customers can expect longer-lasting wear parts in some of the toughest applications. It has a lower hardness of 360 – 444 BHN. The following datasheet will provide more details about AISI 8620 alloy steel. get ABREX 500 HB Steel Plate Price and weight. Strength: The ability of a material that can withstand to Mechanical load is called Strength of that particular material. 08 0. 4 mm (1 in. . MSO currently has no data available for this grade. Department of Mechanical Engineering, Mepco Schlenk Engineering College (Autonomous), Sivakasi, India 1. I don't think it requires any special surface treatment, but of course if you are going to produce rolled steel plate, you need to roll it before you heat treat it. The HSLA, or high strength low alloy grades of steel are specifically optimized for their strength-to-weight properties. Poisson's ratio, ν = 0. This grade is a low carbon structural steel that is formable and strong. Spartan™ Omega™ AR500 bulletproof vest plates hold a 500 Brinell Hardness rating, a scale used to rate the hardness of steel and various other materials. The bonds were characterized by scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction analysis. Tensile properties can vary but are usually between 500-800 N/mm². The following tables show AISI 316 grade stainless steel mechanical properties such as yield strength, tensile strength, elongation and hardness, etc. EN8 is widely used for applications that require better properties than mild steel but does not justify the costs of alloy steel. Common applications for AR500 steel, or other variations of the impact resistant steel, range from Heavy Equipment and Mining, Shooting targets, to even Armor plates. In general, the ABS Grade A shipbuilding plates and Q235B mild steel plates almost have no big difference. 38-0. AISI 1045 steel is a medium tensile steel supplied in a black hot-rolled or normalized condition. Typically used in manufacturing of gears, axles, shafts and machine parts. Although Hastelloy C-276 is primarily used for corrosive applications, rather than structural applications, the alloy still boasts good mechanical properties. 50W Steel Mechanical and Physical Properties. Russel Metals Williams Bahcall. Aug 7, 2011 15,238 33,238 PNW WA. Hardox 500 is also known as BHN 500, AR 500 or AR500 steel. The mechanical properties of a material affect how it behaves as it is loaded. ASTM A514 steel is an alloy steel formulated for primary forming into wrought products. The differ slightly in their mechanical properties. This is a high-carbon alloy steel that is perfect for rugged applications that require high wear resistance. 86. After World War II, it began to fall out of use on main battle tanks and other armoured fighting vehicles intended to see. AR-500F is ideal when prolonged service life where abrasion is the primary cause of failure. $80. A36 Steel Properties. First, the plate is heated to a high temperature – between 1,000 and 1,300 degrees – then rapidly cooled. Below are some of the important 4130 steel properties: · Mechanical Properties. It has a tensile strength of 515 MPa (min) and a yield strength of 205 MPa (min). The properties of ASTM A514 steel include eight common variations. Before being shipped out to a customer, the material must first undergo many tests, including the impact test, bend test, mechanical test, chemical composition test, etc. Carbon added during the formation of the steel plate substantially increases toughness and hardness, but reduces strength. Carbon steel has very low conductivity as compared to aluminum. 304 stainless steel plate has an elongation of 40%. Abrasion resistant steel is created by quenching and tempering forged steel plates. 60: 0. Specifications Specifications AR400 / 400F AR450 / 450F AR450 /. where low-temperature notch-toughness properties may be important. AR400 steel falls between 360 BHN and 440 BHN, whereas AR500 steel falls between 477 BHN and 550 BHN on the Brinell Scale. duplex stainless steel grades →. The exact composition of AR500 steel can vary, but typically it contains around 0. 0 - 32. [150 mm] and under intended primarily for use in welded structures and other non-welded structures. Email: admin@gangsteel. Green Bay WI 895 Hinkle Street 54303 United States. Houston (Almeda) 14200 Almeda Road. Example, ordered some AR500 steel plates from the local steel supply outfit, when I received the two plates, one was marked AR400 with the standard yellow crayon type marking that steel. AR-500F is a formable through-hardened abrasion resistant plate. A588 is a high strength, low alloy steel plate that was developed for use cases demanding higher strength and a longer life cycle. Steel Warehouse supplies AR400 steel plate, sheet, and coil, specifically designed for abrasion and wear-resistant applications. $129. The Brinell Scale characterizes the hardness of steel through the scale of penetration of an indenter loaded on a material test piece. Stocking inventory includes 48″ x 96″ up to 96. Here at SendCutSend, we offer both AR400 and AR500 grades to suit any abrasion-resistant projects you may have. Supplied in the annealed or prehardened condition. 04% Sulphur. 50%). Branches featuring A514 Steel Plate products. Steel is the cheapest of any armor material. su[plier, stockholder, distributor,in ar500 steel plate, ar500 abrasion resistant steel plates, ar500 wear resistant steel plates, 500hb wear plate,ar500 abrasion resistant steel, ar500 abrasion resistant steel, ar500 weare resistant steel plates, most trusted supplier of ar500 steel plates in india As a result, HSLA 80 offers high strength and good bendability, with up to 20-30% less weight than would be required with the equivalent strength in carbon steel, and provides excellent weldability. The density of 50W steel is around 7. AR stands for Abrasion Resistant and will come in designations like AR400 or AR500 and usually offered as-rolled versus normalized (AR 200, 235 and 600 are also available). AR500 can resist wear and abrasion, both improving equipment’s longevity and increasing production time. Al-7075 is much stronger than carbon steel after heat treatment. 7075 aluminum alloy is a high-strength, heat-treatable wrought alloy developed by Alcoa in 1943. 5" to 4" thick 40 64-90 20 50W 50 65-95 19 50A 50 70-95 19 Chemical Composition The following composition properties are for the CSA G40. 3/4″ to 4″ Widths. The HSLA, or high strength low alloy grades of steel are specifically optimized for their strength-to-weight properties. Our products cover a wide range of applications including the construction industry, shipbuilding industry, pressure vessels and boilers, oil and gas, bridge construction, offshore platforms, stamping and cold forming, automobile. 316L Stainless Steel Mechanical Properties. It has a solid reputation as a highly versatile, abrasion-resistant steel that also has structural properties. The modern four-high plate mill allows the possibility to roll with large reductions, resulting in a fine-grained microstructure. manufacturing difficulties inherent in DHA. These steels are designated as group D steels and consist of D2, D3, D4, D5, and D7 steels. CONCLUSIONS In this study, the mechanical properties and microstructures of three high strength low alloy steels were investigated. G350 steel contains less than 0. Mechanical properties are achieved by quenching and when necessary by means of subsequent tempering. Specialty Steel remains open & fully operational. 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; AR500 Steel targets can usually handle rifle hits with velocities near 3,000 fps but shoot at a. Kromite® #3 (4140/4150 mod. Simply put, the H series of shipbuilding-grade plate offers some of the highest performance steel in the world. It scores about 6. A633 is high-strength low. 50W steel has a minimum yield strength of 50,000 psi, making it a high-strength material. Valast® 450 :125” - . However, the mechanical properties of this steel will be affected if it is welded in the heat-treated condition, and post-weld heat treatment should be performed. 079‑1. . MSO currently has no data available for this grade. AR500F exhibits an optimal combination of hardness, abrasion resistance, formability, and weldability. High-alloy Steels. Grade 202 has excellent mechanical properties due to its high strength and ductility. AR400 is an abrasion resisitant plate material that is not intended to be used for fabricating rotating equipment. AR400 vs. Thanks to its weldability and forming capabilities, AR500 steel is used in the design and manufacture of everything from protective body armour through to the. I hardness tested some plates with a Rockwell hardness tester setup for the C scale. A514 steel is available in a variety of chemistries: B, E, F, H, Q, and S. 45% manganese. The primary reason to use 303 is when you need a stainless steel with machining capabilites better than that of 304 and 316. The oil quenching section below 4. It can be flame or induction hardened and is a readily machinable material. Menu. While still a carbon steel, trace elements are added to enhance material properties. AR plate is a high carbon alloy plate. All of the mechanical properties for the abrasion resistance steel matches the ASTM E10. Hardox 500 is also known as BHN 500, AR 500 or AR500 steel. material, mechanical and metallurgical properties of different sorts of steel, which are basically utilized for the generation of mechanical components, industrial components and. Hardox® 450 combines good bendability and weldability. AR500 sheets commonly come in thickness ranging from 3/16″ to 2″ but most common use for. 29%. More Info. 7092 nt 54. The tempered design include aluminum 7075-T6. A572 grade 50 steel plate is a high-strength, low-alloy plate, specified for bridges, higher strength structural duties, and light pressure vessel requirements. AR500 is the same steel alloy used in body armor plates sold to SWAT teams and law enforcement. The carbon potential is close to eutectoid, maintaining a 1 h diffusion. High-alloy Steels. AR500, or AR500F steel, is a. Composition. (50 mm) = 61t + 12, rounded to the. You can weld the steel using any conventional technique, and no pre-heating is needed up to 25. The mechanical properties of annealed maraging 350 alloy steel are outlined in the following table. Outside diameter measurements for A500 carbon steel tube must be made at positions at least 2” (50. AR500 Flats & Rectangles; AR500 Wear Plate; Metric Steel; Threaded Rod;. 500″A500 Structural Carbon Steel Rectangular Tubing Types. Martensite Carbon. 3 mm [0. Brinell vs Rockwell C. Heat to 800 °C (1475 °F). A633 Steel Plate. It has high strength, moderate corrosion resistance, and good hardness and wear resistance. Hard Side Plates . Applications | Specifications | Related Videos | Mechanical and Chemical Data | Tolerances. You can weld the steel using any conventional technique, and no pre-heating is needed up to 25. Phone: 800. While not routinely tested for mechanical properties, these can be requested as-needed. Hudson Tool Steel shares technical data associated with D2 tool steel including stability and toughness. 33 and varies based on the dimensions or any customizations of the grade. Hardox® 450, with an extra 50 Brinell hardness over our 400 grade, provides better dent and abrasion resistance as. at least one test specimen per heat and 40 tons. Branches featuring AR400 | AR400F Steel Plate products. The tensile strength and hardness of AISI 4340 and AR500 steels were evaluated and compared to that of RHA and the results were analysed based on its chemical compositions and microstructural observation. Like quenching and tempering, precipitation-hardening also involves two periods of re-heating and cooling steel plate. Annealed. A514 ≤ 2. The oil quenching section below 4. Properties Metric Imperial; Tensile strength. Stick (SMAW) welding of ASTM A514, A517 T-1 materials shall be carried out using E11018 which offers high tensile strength and matching. 5% manganese, and small amounts of silicon, phos. Reactions: QuickNDirty. Properties The high-carbon composition and additional chemical alloys included in AR500 steel give the material enhanced hardness and wear resistance. Its a high strength steel with excellent impact and sliding resistance, and decent welding capability. Despite its strength and hardness, weldability and formability of this. Dimensin,shape,weight and allowable deviation according to standards: GB709-88 or EN10029. Chemical Composition Grade B C max. Mechanical Data. Tensile strength is the amount of force required to pull a material apart. Additional uses include shooting targets and armor, AR500 steel is commonly used for these applications as higher BHN steels are more brittle. When. Characteristics and performance. org 2 Dimensions and Section Properties of Round HSS 6 Dimensions and Section Properties of Square HSS 10 Dimensions and Section Properties of Rectangular HSS b Nominal width minus 3 times the design wall thickness, t (in. Conformance to required mechanical properties shall be determined by tension and hardness tests. Improved forming and weding capabilities. These targets are designed in collaboration with military and law enforcement agencies, making them reliable and durable. Download Hardox Guarantees to see how you can ensure predictable fabrication in the workshop. While targeted at more severe wear conditions, Hardox ® 600 can still be cut and welded, making it an excellent choice for high-performance applications. Unfortunately, in recent years a rather large and burgeoning amount of criticism against them has arisen due to a combination of uncertified armour, unreliable materials, and dishonest. UNS S31603 has a high concentration of chromium for corrosion resistance and extremely low magnetic permeability, allowing it to offer superior protection against rust and ideal thermal stability in various environments. INTRODUCTION The mechanical properties are those which affect the mechanical strength and ability of a material to be molded in suitable shape. Specific steel grades (AR400 / AR450 / AR500) in various sizes are available for mining, cement, aggregate and related applications. Protector Helmet. Yield Strength – 110,000 PSI Depth of Plating. This alloy has higher levels wear resistance and hardness than AR400 and AR450 but the formability is inferior. This increase in strength and abrasion resistance provides a greater impact and sliding resistance but will make the steel less malleable. AR400 VS AR450 VS AR500. 1J04 Lost Squirrel. ) C Torsional shear. In summary, both S7 tool steel and AR500 are high-quality steels with exceptional strength. The low amount of carbon in AISI 1010 makes it an ideal material for applications that require good ductility and high formability. Differences between Chemical composition & Mechanical properties of AR 500 Plate with other AR Plates. 1103/1104, Floor-11, Roxy Cinema Opera House, Girgaon, Mumbai-400004 +91(22)-66363383. Stainless steels are defined as low-carbon steels with at least 10% chromium with or. Except type D3 steel, all the other group D steels include 1% Mo and are air hardened. CLIFTON STEEL COMPANY 16500 ROCKSIDE ROAD, MAPLE HEIGHTS, OH 44137 FAX: 216. 2t + 17. Chemical Composition (%)(max) AR Grade C Si Mn P S Cr Ni Mo B; AR 400 Plate: 0. It has better mechanical properties than ASTM A36 steel. AR steel comes in several harnesses and although 500 about tops the scale. 321. 03 ≤0. Hardox ® 500 Tuf is a clean steel with extremely consistent, guaranteed properties for flatness, thickness and bending performance. This means that AR is harder due to the addition of carbon, and formable and weather resistant due to added alloys. AR400 has a tensile strength of 135,000 psi, while AR450 has a tensile strength of 170,000 psi. Give us a call at 800-348-2529 or leave us a message. However, the joining of AR500 steel and AA7075 aluminium alloy is. $65. 6, the design values of the material properties and coefficients for structural steel are: Modulus of elasticity (Young's modulus): E = 210000 MPa. 9 Grade Bare Steel/Zinc Plated;. 00. AR400 Steel Plate AR400 Steel Plate – Hardness 360-444 Brinell. Specification Range of NM360 Wear Resistant Steel Plate: Thickness: 8mm-300mm. They have unparalleled multi hit capabilities when compared to ceramic or polythene armor. Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes A0500-03A ASTM|A0500-03A. It is commonly used for hot end components (e. The number designation indicates the average Brinell hardness value: 400 HBW. Different Mechanical Properties of Metals: 1. The SAE steel grades system is a standard alloy numbering system (SAE J1086 - Numbering Metals and Alloys) for steel grades maintained by SAE International. AR500F. All our AR400, AR450 and AR500 have additional alloying elements which increase formability and enhance weldability. The steel modules are commonly seen in the construction of bridges, buildings, general engineering, etc. 35 max 0. PROS & CONS OF STEEL ARMOR. 5 – 3 mm below surface. 744 mi. 61% and goes up to 1. 4140 annealed is supplied in the soft condition and can be hardened to RC 40. duplex stainless steel grades →. Department of Mechanical Engineering, Mepco Schlenk Engineering College (Autonomous), Sivakasi, India 1. This grade steel is a high-strength, low alloy steel plate. com® Product Guide. AR Medium plates are the abrasion resistant plates which fall under the class of moderate wear AR plates, which includes AR200 and AR235. Steel plate is used for a variety of applications requiring durability and strength. For all critical applications, verify to the applicable industry or requisite material / steel standard. Width :1500mm-4020mm. AR500 steel plate is a high-carbon steel alloy and has a surface hardness of 477-534 Brinell Hardness. Different alloys offer various levels of machinability, weldability, strength and corrosion resistance. Although they share the important core properties of abrasion-resistant steel, the two metals have a few key differences which allows them to cover even more ground when it comes to their. In the feature manager, just right click (RMB) on the existing material and select “Edit Material”. These. JIS S50C Carbon Steel is one steel grade material in JIS G4051. MIL-A-12560 is a rolled homogenous armor (RHA) specialty plate and is designed for applications that require maximum protection for ballistic purposes. Our warranties and liabilities are stated exclusively in our terms of trading. 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. It is designed for high wear applications and is often used in the mining or material handling industries. su[plier, stockholder, distributor,in ar500 steel plate, ar500 abrasion resistant steel plates, ar500 wear resistant steel plates, 500hb wear plate,ar500 abrasion resistant steel, ar500 abrasion resistant steel, ar500 weare resistant steel plates, most trusted supplier of ar500 steel plates in indiaAR600 steel is a durable high-carbon alloy steel with excellent strength that's supplied nationwide across our 40+ branches. It offers an excellent combination of strength, notch toughness, and weldability. The controlled rolling process refines the grain of the alloy, and improves durability. Q235 material in Chinese standard GB/T 700 is divided into 4 quality grades: Q235A, Q235B, Q235C and Q235D; Density of this steel is 7. The following tables show ASTM A36 steel properties such as chemical composition, physical and mechanical properties. Ok let's start with ASTM A500 chemical composition. ‘AR’ means: Abrasion Resistant. It’s not really used for knives, either. 283 lb/in3: Ultimate Tensile Strength: 95 ksi: Yield Tensile Strength:The Calibre Steel custom range offers flexible order quantities. prosaic steel & alloy is highly acclaimed manufacturer. It a superior alternative to AR500 plate because of its minimum hardness guarantee of 500 HBW. 0570 Steel works well in extreme and cryogenic temperatures. 10 Manganese (Mn) 2. JIS S50C grade carbon steel is widely used in machinery manufacturing, good mechanical properties of this steel. More Info. 9% C in a prepared carbon-containing atmosphere, hold for about 4 hours (to reach a depth of 1. AR400 VS AR450 VS AR500. Directions. The alloy contains zinc, magnesium, chromium and copper as hardeners, as well as small amounts of iron, silicon, manganese and titanium. ASTM A514 steel is an alloy steel formulated for primary forming into wrought products. However, the addition of high amounts of carbon also reduces the formability and strength of AR500 as compared to other steel plate grades. This grade has one of the highest levels of hardness out of the common AR steel plate grades – with a Brinell Hardness Number (BHN) of between 460-544 – and is typically used in high-wear and impact applications. 283. A quenched & tempered, through-hardened, abrasion-resistant grade of steel plate. AR400 steel is a high-carbon alloy steel that is specifically designed for abrasion and wear resistant applications. Nov 20, 2018For A500M use the following formula: 2. 6-0. The higher a ballistic plate ’ s Brinell. Download Hardox Guarantees to see how you can ensure predictable fabrication in the workshop. Mechanical Properties Of 500HB Wear Resistant Steel Plates. Before being shipped out to a customer, the material must first undergo many tests, including the impact test, bend test, mechanical test, chemical composition test, etc. 00. . PROS & CONS OF STEEL ARMOR. Mechanical Properties of A514 Grade B material. AR 500 is a high hardness steel having a hardness level of. JIS SS400 steel is an ASTM A36 equivalent material. stocking distributor of Maraging 350 / VASCOMAX® 350 available in billet, bar, rod, plate, sheet, and customized forgings. 40: 1. 5, rounded to the nearest percent. Mechanical and Chemical Data | Tolerances. This is also reported by [10] where transformed band produces fine structure increases hardness. similar mechanical properties to RHA. 04 max 0. Steel - Testing, Properties, Manufacturing: The testing of steel’s properties often begins with checking hardness. 3. ASTM A572 grade 50 steel is a low-alloy high-strength structural steel with a yield strength of 50 ksi (345 MPa) and a tensile strength of 65 ksi (450 MPa). similar mechanical properties to RHA. AR500 steel has a hardness rating of around 500 HBW, making it highly resistant to surface. Disclaimer. Mechanical strengths of the joints were evaluated by the shear test and microhardness. M. Impact toughness: 69 J at -40°C (51 ft-lb at -40°F) Plate: 4-130 mm (0. Physical Properties 4140 . Steel is the cheapest of any armor material. 75-1. Can be heat-treated. Classified according to its mechanical properties instead of its chemistry, HSLA-80 is formulated to offer structural efficiencies to take maximum. Grade 440C stainless steel is a high carbon martensitic stainless steel. The titanium atoms stabilise the structure of the 316 at temperatures over 800°C. Length: 3000mm-18000mm. It a superior alternative to AR500 plate because of its minimum hardness guarantee of 500 HBW. Mechanical Data. in. The St 52 Material is designed with superior mechanical properties. 4 mm (1 in. 187) & possibly 1/4" (. Quench in water or brine. However, one. Density: 0. It is commonly specified in the US for hollow structural sections, but the more stringent CSA G40. A strength of. Nov 20, 2018For A500M use the following formula: 2. The conventional fusion welding techniques between armor and duplex stainless steel could have resulted in the segregation of chemical contents, and. ASTM A514 Alloy Steel. 21 HSS are cold-formed, welded carbon steel structural tubing products produced to the Canadian steel standard. Values of these properties are primarily reflected by its microstructures and chemical compositions. The following datasheet will provide more details about AISI 8620 alloy steel. The largest HSS in North American can help you build bigger, wider and taller than ever before. Additionally, it has great corrosion resistance due to its high chromium and nickel content. steel, alloy of iron and carbon in which the carbon content ranges up to 2 percent (with a higher carbon content, the material is defined as cast iron). The following tables show ASTM A36 steel properties such as chemical composition, physical and mechanical properties. Alpharetta, Georgia 30004. Design values of additional material mechanical properties for structural steel. 00” thickness offered in standard sizes (96” x 240”/288”) Steel Warehouse supplies AR450 Steel Plate, which is an abrasion-resistant steel with a unique surface hardness. A500 is exclusively used in structural tubing. Mechanical Testing . Hardox 500 Steel Plates thickness can be from 3 mm to 130 mm. 2. Abrasion resistant steels can withstand mechanical wear much better than conventional high-strengh steel. AR450 steel is a high-carbon steel alloy that has a surface hardness between 400-477 BHN. THE P Number for ASTM A517 is also 11B. AR 500 Steel Plates: Heat Treated for Higher Hardness Rating. Amarillo. 278 lb/in 3 (7695 kg/m 3) Specific Gravity: 7. 1 Availability, properties and tolerances Galvanised Material Hot-dip galvanised cold rolled and. Hardox ® 600 has a nominal hardness of 600 HBW and a uniquely high toughness for such a hard steel. Grade: Yield Strength MPa: Tensile Strength MPa: Elongation A: Impact Strength Charpy V 20 J: 400 AR: 1000:. ). 00. The elongation rate is 40% (min). Alloy Steels. Yield: Tensile UTS 20°C (68°F) Elongation: Charpy -40°C: Hardness BHN: 202 Ksi: 230 Ksi: 10%: 25ft/lbs:Rolled homogeneous armour (RHA) is a type of vehicle armour made of a single steel composition hot-rolled to improve its material characteristics, as opposed to layered or cemented armour. 9 0. Metal Supermarkets is the world’s largest supplier of small-quantity metals. A572-50.