ar400 steel machinability. 00. ar400 steel machinability

 
00ar400 steel machinability  Typical Mechanical Properties

1020 steel has a tensile strength of 420 MPa and a yield strength of 350 MPa. Request a FREE quote for A514 Steel Plate. 1112 carbon steel a machinability rating of a hundred%. 3/16″ – 3″ (Widths 72″ – 96″ – 120″) 1/4″ – 2 1/2″ (Widths 72″ and 96″) * Chemistry may vary depending on thickness and application – Please inquire. 09 0. 4140 COLD FINISHED & ANNEALED (Rc 19/24) BAR STOCK. May not sound much but the effect on wear life is impressive. Our tines will hold up too many years of wear and tear. Wearalloy 450, or AR450, lasts four times longer than other carbon-alloy steel plates. AISI 4330 alloy steel is forged in the temperature range of 1204 to 982°C (2200 to 1800°F). Factors that typically improve a. 321. At Lange Grinding, we have worked with steel meels for decades,. From forging to machining and finishing, our Chicago based steel service. It can be readily cold formed. For example, it will resist fatty acids at high temperatures as well as sulfuric acid. AR450 and AR600 steel plates are also available, but they’re a. 96” x 360”. Tricon’s unique serpentine cladding process. The low carbon also prevents heat treatment from having much of an effect on A36 steel. 1018. P) Machining Guidelines. General Info About AR200. Material: Steel, Other. MIL-A-46100 is a high-hardness armor (HHA) plate that has been approved for use by the Materials Technology Laboratory. Liberal amounts of a good coolant are essential. A514 T1 steel plate provides a high yield strength of 100 ksi min. AR500 |. They are designed to weld quickly, looking good in appearance. AR400 + AR500 abrasion resistant plate, bar & strips. 1-800-394-4399machinability ratings are based on Carbon Steel 1212 = 100%. While targeted at more severe wear conditions, Hardox ® 600 can still be cut and welded, making it an excellent choice for high-performance applications. 96” x 576”. A514 Steel Plate: Low carbon and sulfur levels, strong, and easily machinable. AR400 is made for improved formability with low levels of carbon and sulphur for inclusion shape control. Amarillo. In order for us to. AR400 steel is a high-carbon alloy designed explicitly for abrasion and wear. Here's how you can determine the proper cutting speed for a new material. This grade is a high value abrasion resistant steel. 4. Sulphur (S) improves machinability of deposits and adds to deposit soundness and tensile strength. The number in the material name (e. Due to its special qualities, AR400 can be used in a wide. Hence, the steel should be annealed before machining to obtain maximum speeds. Today, AR material with or without the "F" are interchangeable,. Drilled some holes in it this afternoon and it is tough. Typical Mechanical Properties. AR500 | AR500F. Request a Quote. Kotlyn, Inc. Hot Rolled Steel HRP&O HRP&O (Hot Rolled Pickled & Oiled) Long Terne Low Carbon Steels M1044 Martensite MartINsite(tm) Bartemp-M(tm) Medium Carbon Steel MIL-S-22698 Grade DH36 MIL-S-22698 Grade EH36 Music Wire Nickel Coated Steel Nickel/ Zinc Coated Steel RCQ 100 Silicon Core Iron Spring Steels Stress Proof Stressproof(tm)How to prevent magnetism on steel bars & plate. Therefore, AR400 will have a lower hardness than AR500 / AR500F. Post-work annealing can be done to restore its corrosion resistance property. Hardox ® 600 has a nominal hardness of 600 HBW and a uniquely high toughness for such a hard steel. 9% manganese with traces of phosphorus, and sulfur (Capital Steel & Wire Inc. Grade 70 has the highest tensile strength of them all, between 485 – 625 MPa. Machinability Comparison Chart: Carbon steels: 1015: 72%: 1018: 78%: 1020: 72%: 1022: 78%: 1030: 70%: 1040: 64%: 1042: 64%: 1050: 54%USA Quality Runser Custom Machining Thumb: This thumb is composed of two ¾” thick AR400 steel tines. More Info. The rough edges on the plate should be removed by grinding. 5” to 6” thick. 07 0. MACHINING Drilling, countersinking, counterboring, tapping, milling, and general machining is performed. MIL-A-12560 is a rolled homogenous armor (RHA) specialty plate and is designed for applications that require maximum protection for ballistic purposes. Tap. This is another method of improving machinability in 8620 material; normalizing might also be used prior to case hardening. It can be then quenched rapidly. AR400 is a type of steel plate. A. MIL-A-46100 has good machinability capabilities. 9 Mil 1974 50-99. It has a lower hardness of 360 – 444 BHN. Hardox ® 600 has a nominal hardness of 600 HBW and a uniquely high toughness for such a hard steel. In. 75" can be cold bent to minimum inside bend radius of 3t (where t is the plate thickness) with the bend axis transverse to the rolling direction. The range of Machinability is vast and spans from about 40% for difficult to machine steels, such as bearing steel ( SAE 52100 / DIN 100Cr6) up to Ledloy free-cutting steel (SAE 12L14 / DIN 9SMnPb36) that has a machinability rate of about 170%. Here's how you can determine the proper cutting speed for a new material. Works with aluminum, brass, copper, mild steel, stainless steel, and hot or cold rolled steel materials. 0C1%Hf (Grade 21) Zircaloy 2 (Grade 32) Zircaloy 4 (Grade 34) Spot Welding Equip. This includes different blades and buckets, heavy. We have AR400 and AR500 angle in stock! English; Español; Request a Quote +1 (800) 237-0113. With an OMAX abrasive waterjet in your shop, sometimes you will come across a new material that has an unknown machinability. Machining. Cutting and machining Tensamang™ steel are not automatic. A588 is known for its atmospheric corrosion resistance thanks to a natural patina of rust that forms when exposed to outdoor weather conditions. In this article, the production of abrasion-resistant steel plate is described and the differences between hardness levels are studied. 00/pound for 500. ; Alro distributes and processes metals from over 75 locations in 15 states. 00 - $950. The nickel and molybdenum content gives AR400 carbon steel the ability to resist wear better than all other carbon steel. Machining something requires applying a lot of little rapid hits to something - this is just what you need to make something magnetic. However, they differ in terms of hardness. The nickel and molybdenum content gives AR400 carbon steel the ability to resist wear better than all other carbon steel. AR400 | AR400F Steel Plate. 04 0. AISI 5160 alloy steel has poor welding property owing to its high chromium and carbon content. Thick AR400 plates are harder, and more force is required when cutting. Wear-Resistant AR400 Carbon Steel The nickel and molybdenum content gives AR400 carbon steel the ability to. Contact Us. 1/4 AR400 high manganese wearing steel plate AR400 wear resistant steel sheet/plate ar 400 material $600. AR400 Steel Uses. 8500. AISI 4330 alloy steel has good formability characteristics and the bend radii for this alloy should not be sharper that a 3t bend. Can be finished by grinding only; 3. A little history and background on 4140 Steel in relation to other mild and carbon steels in the industry. Both are quenched & tempered products. 09 0. I suggest to him to Kasnite the material to add more carbon to it. ANSWER: Steel plate is typically stocked in 36″, 48″, and 60″ widths and 96″, 120″, and 144″ lengths. Heat TreatmentAR400 is heat treated when rolled to achieve the 150 kpsi yield strength. AR400 hardness: 360 minimum / 400 nominal. Machinability Comparison Chart: Carbon steels: 1015: 72%: 1018: 78%: 1020: 72%: 1022: 78%: 1030: 70%: 1040: 64%: 1042: 64%: 1050: 54% AR400 / AR450 / AR500 Overview These grades are used in highly abrasive environments within the mining, cement, aggregate, and various ground engaging applications. Too tight of a radius bend will tend to crack it on the outside of the radius, though. 5 mm) thick plate, and at least 110 ksi (758. 5 m/s. For the thicknesses given, the AR400 should have a minimum preheat of 250 degrees F and the A514 a minimum of 125 degrees F. 315” thickness offered in 48”-81” wide cut to your requested length. Grade 316 steel has a machinability rating of 60, while 316B has a machinability rating of 50. This steel is often used in applications where formability and weldability. Menu. Alpharetta, Georgia 30004. US $ 650 / Ton. Steel Warehouse supplies ASTM A514 steel (also known as T1) grades A, B, E, F, H, P, Q & S. Combination Plasma Cutting & Machining System; Plasma & Oxy-Fuel Cutting; Plasma. Details. Related. 2200 RPM @ 25 ipm. 16 Downloads 0 Uploads 0 Machining AR400 steel plate I'm needing to machine several stepped pockets in some AR400 steel plate. We used tons of AR400 at work, with a little AR500 thrown in. ; Our team provides value added metals processing to help you reduce lead times. A572 steel is a high strength low alloy structural steel known for its versatility. Wearalloy 450, or AR450, lasts four times longer than other carbon-alloy steel plates. Joined Jul 25, 2004 Location Asheville NC USA. Surface hardness of 360-440 BHN. Typically, military grades are A36 Low-Carbon Steel, AR400 Abrasion Resistant, AR500 Abrasion Resistant, MIL-46100 Military Grade, MIL-12560 Military Grade, and MIL-46177 Military Grade. 015 inch/revolution Tooling M1, M2, T15, M33, M41, M47. Certificates with a traceable lot number are available for these. Amarillo. As a result of its high toughness, good bendability and weldability, this steel can be used in structures with moderate wear. This allowed for reliable performance both in the workshop and in operation. It does not exhibit hard and/or soft. USA Quality Runser Custom Machining Thumb: This thumb is composed of two ¾” thick AR400 steel tines. These result in higher tool performance and easier upkeep. MIL-A-12560 is a rolled homogenous armor (RHA) specialty plate and is designed for applications that require maximum protection for ballistic purposes. The AR400 can be cut to near finish size on a water jet. Quenching occurs by bringing the steel to a high temperate, between 1,500 and 1,650F, then is. Apex EZ Sander 37" Single Head Wide Belt Sander, EZ3760MInv. and 250 BHN O. Mangalloy, also called manganese steel or Hadfield steel, is an alloy steel containing an average of around 13% manganese. The AR400 wear-resistant steel plate on the market is divided into thin and thick plate. In order to prevent the influence of high temperature steel plate hardness, generally laser cutting or waterjet cutting is selected when processing materials such as AR400 steel plates. AR400 is a much stronger and harder steel than A36 steel. The typical Brinell Hardness range is 360-444 BHN. While all of these grades have slightly different chemical properties, the mechanical properties remain the same for all. Feb 6, 2019 #8. Ameralloy provides engineering services for your steel products. 0 /5 · 0 reviews · Contact Supplier. General Info About MIL-A-46100. Leeco ® Steel stocks and supplies large quantities of AR400 steel plate, which combines surface hardness with formability. Custom applications can use an A-514 steel or other higher strength steel in replace of a mild steel base plate. A516 has fair machinability. AR400 Welding & Machining | Associated Steel Corporation Sent by telegraph using Tap. #3. AR400 steel has a range of 360–440 BHN (Brinell Hardness Number), making it exceedingly proof against abrasion and wear. 010+ FPR Maximum SFM . Providing. Kotlyn, Inc. The main differences are hardness and strength, achieved through varying levels of carbon and manganese. Forming: 1. This allowed for reliable performance both in the workshop and in operation. 8500. Valast® 450 :125” - . This grade is a low carbon structural steel that is formable and strong. Drilling, countersinking, counterboring, tapping, milling, and general machining can be done with conventional equipment and carbide tools. The Ar400 Plate is not a good candidate for machining due to high hardness, however it has a high weldability. S. Problem #2: I am planning on machining an AR400 axe blade on the outside of one of the bolt cutter blades. It's often used as wear strips, liners, and deflector. The first “4” is 4140 indicates that the steel contains molybdenum at higher levels than other steels like the 1xxx series. This video from my CNC Chef series for Cutting Tool Engineering Magazine gives a quick What is High Speed. Ar400 steel has good corrosion resistance and can withstand sliding and impact wear. AR500F. First, the plate is heated to a high temperature – between 1,000 and 1,300 degrees – then rapidly cooled. WeldingLOW-ALLOY STEEL, CAST STEEL, FREE-MACHINING STEEL michael smith engineers limited Germany DIN MATERIAL GRADE COMPARISON TABLE Material No. A517 is a closely related alloy that is used for the production of high. In cold state, 10# seamless steel pipe is easy to be extruded and molded, but its strength is low, and its hardenability is. 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. ar 500 xar 500 xar500 nm500 nm 500 ar500 abrasion resistant steel plate. Hardness. 4140 steel properties. AR400 is a PITA and work hardens at the worse time. 7262 15CrMo5. It’s a power hog. 00 -. Check Machining/Welding, Dealer and Stocking Distributor of Ar400 Steel 4x8 Sheet with standards, remarkable sizes and quality. you will give up a little bit of machining time to gain strength and toughness. Machinability is the ease with which a metal can be cut permitting the removal of the material with a satisfactory finish at low cost. Description. This abrasion-resistant steel grade is ideal for parts where long-term and intense wear resistance is a top priority. Commonly formed with overlay to the inside; 2. AR400 | AR400F Steel Plate. Phone: 800. Accord Metal Fabricators is Victoria's #1 for structural steel and other steel metal fabrication projects. We have seen foreign-made steel wear plate sold as AR400; test at 302 BHN hardness! Did the customer get what they paid for? No way. 3:33. I have milled a ton of AR400 and AR500 wear plates. How To Drill A Hole In AR500 Steel. High Speed – Depth of Cut . Designed for a wide range of structural uses, as well as for machinery and equipment, A514 T1 Steel. 4140 steel properties. The wear resistance of AR400 wear resistant steel plate is 15-20 times of that of ordinary steel plate, 5-10 times of that of low alloy steel plate, and 2-5 times of that of high chromium cast iron. AR400 abrasive resistance steel plate is intended for higher, impact, wear applications where cold-bending and very good weldability is important. Machining. Experience is key when it comes to grinding and machining companies partnering with steel mills. Like quenching and tempering, precipitation-hardening also involves two periods of re-heating and cooling steel plate. Drilling, countersinking, counterboring, tapping, milling, and general machining is performed with conventional equipment and carbide tools. High productivity & Low cost. Plates in Hardox ® 400 come in thicknesses from 2 to 130. Plates that are 4” and thicker are made to a 42 KSI yield, although material can be modified to reach the 50 KSI min yield. hot rolled ar400 steel plate price. AR500 hardness in Brinell: 450 minimum / 500 nominal. 3:33. While targeted at more severe wear conditions, Hardox ® 600 can still be cut and welded, making it an excellent choice for high-performance applications. 441. Have a look at our machinability rating graph which without a doubt will make your decision a lot easier with its incredibly detailed information. AR400 steel can be heat-treated to improve its mechanical properties even further. The typical Brinell Hardness range is 470-530. View in full-text. AR400 is formable, to some extent. US $600-700 / Ton. It is not recommended for structural use applications, but it is usually used in chutes. Watch on. Mir50® Machining Guidelines; Close; ASC2250® LDX. Problem #1: I need to attach titanium to high carbon steel jaws (no further information on the composition). Machining. AR400 is a much stronger and harder steel than A36 steel. Monday, September 13, 2021. Steel Plate Supplier-Max Wear Steel » Steel Plate Supplier: Max Wear Steel Steel Plate Specialists - Chapel Steel And this company in New York American Alloy Steel I have used all three but currently am buying from Max Wear Steel. 2-4 times greater life than conventional 500 BHN steels. While AR450 steel is similar to AR400 and AR500, there are some variances that make each unique. US $ 600-1500 / Ton. There were 8 of them 2-1/2" thick, and 8 more that were 1" thick. The number in the material name (e. A572 plate is a high-strength, low-alloy structural steel that includes five grades—42, 50, 55, 60, 65 and 80—according to their minimum specified yield strength. 05-23-2010, 11:38 AM. 321. The main advantage of AR400 steel is its superior durability—it can withstand much more wear than ordinary mild steel and is more resistant to corrosion. We are your Vancouver and Western Canada metal supplier for 304 stainless steel, 316 stainless steel, A36 carbon, 1018 carbon, AR400 carbon, 3003 aluminum or 6061. A radius of 4t can be used when bending parallel to the roll direction. AR400 is a much stronger and harder steel than A36 steel. Tempering, for example, can help reduce the steel’s brittleness and improve its. Tri-Braze is the standard for by which all other impact and abrasion resistant alloy steels are measured. 8500. AR400 vs. In addition to its general characteristics of being formable, while maintaining good abrasion resistance, AR400 steel also has the following. We supply A-514 steel for the construction industry, including earth moving and drilling equipment, truck frames and bodies, and oil rigs, among others. Drilling, countersinking, counterboring, tapping, milling, and general machining can be done with conventional equipment and carbide tools. Hardox® 400 is a versatile wear-resistant steel. values of hardness are compiled and shown in Table 2. Therefore, AR400 will have a lower hardness than AR500 / AR500F. MACHINING Drilling, countersinking, counterboring, tapping, milling, and general machining is performed. AR400 is a quench and tempered steel and may be difficult to weld due its high strength and hardenability. Oct 21, 2021 #8 52 Ford said: Heres something talking about welding AR400. hardened surfaces, Ultima 601 becomes the ideal abrasion resistant product that can handle the rigors of extreme maintenance problems. AR450 vs. . Ameralloy-20 is a chrome-moly tool steel made specifically to fill the requirements for machined cavities and forces used in zinc die casting and plastic molding. Ford Steel is a leading supplier of Wearalloy AR500 hardened steel. Characterised by good core strength and toughness in small to medium sections with case hardness up to Rc62 when carburized, hardened and. Mirraloy FM is a modified 1144 steel. Truck bed and bucket liners are major applications, as well as chutes and gates. 06-10-2010, 01:11 PM. 150” Speed 260 brazed, 330 throw-away Feed . Learn about 1045 steel properties like 1045 steel yield strength. 5. AR500F. Machinability Comparison Chart: Carbon steels: 1015: 72%: 1018: 78%: 1020: 72%: 1022: 78%: 1030: 70%: 1040: 64%: 1042: 64%: 1050: 54%AR400 / AR450 / AR500 Overview These grades are used in highly abrasive environments within the mining, cement, aggregate, and various ground engaging applications. Phone: 800. This allows the steel to form a uniform microstructure and resets the grain structure to something similar to an untreated steel microstructure. AR400 Flat Bars; ASTM A514; ASTM A829 AISI 4130/AISI 4140; Marine & Offshore Steel Plate. A quenched & tempered, through-hardened, abrasion-resistant grade of true mill bar. 500 also has a higher hardness. Good luck Matt 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 Steel Plate, Suitable for Welding. Carbide – Depth of Cut . BHN = 2 P / (π D (D - (D2 - d2)1/2)) (1) where. AISI 4330 alloy steel has good machinability features in the annealed, tempered and normalized. It's on an already built unit so I can't substitute another steel. Useful when using prehard 4140 Steel or 316 stainless steel. AR500F exhibits an optimal combination of hardness, abrasion resistance, formability, and weldability. Machining AR400 steel plate. The normalizing process is designed to relieve stresses, which results in improved ductility and toughness. For purposes where abrasion resistance is essential, AR400 steel plate works perfectly, but deformation and machinability are essential. Advantages/Disadvantages. 3% brings the best machinability rate. 4140 is a great basic chemistry that is easily modified at the steel mill by. Typical hardness range is 385/425 BHN. It's often used as wear strips, liners, and deflector plates. carbon steels as the slurry velocity was increased to 5. Our tines will hold up too many years of wear and tear. I don't do much machining on anything but aluminum, delrin, and the occasional mild steel or brass so I'm not too up on hard machining. Here is a comparison of the key advantages and disadvantages of common injection mold steel grades: Machinability. When compared with AR400 steel, AR500’s increased surface hardness allows it to outperform in certain high-abrasion applications. Abrasion resistant steel is created by quenching and tempering forged steel plates. The steel called for is QT400 and is 50 mm thick. AR400 is a much stronger and harder steel than A36 steel. 9300. The name AR400 steel indicates to most people the steel they are buying is 400 BHN (Brinell) hardness. 4140 steel properties. been asked many times if it's possible for someone to drill a hole in their AR500 steel targets and I've always had to. Likes: 0. This is for my workbench. Carbon steels may be stress relieved by holding a temperature at 1,100 to 1,250°F (600 to 675°C) for 1 hour per inch (25 mm) of thickness. Here are some tables list the machinability of a wide range of metals. Joined Dec 28, 2004 Location uk. The numbers 1055, 1065, and 1095 refer to the carbon content in every alloy. 321. Machining = Fair. However, it’s also more prone to shattering. A514 Steel Plate aka T1 steel plate is a high strength steel plate designed for applications requiring optimal impact and abrasive resistance. A514/T-1 plate is available in eight. ASTM A572. AR235 / AR200 / AR Medium. AR400F. 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. Recommended for riveted, bolted, or welded structures, such as Gussets and Bridge Plates, when intended for construction of bridges. machining 96 inch long ar400 steel wear strips. Kotlyn, Inc. Welding. D. AR500 | AR500F Steel Plate. Well, on the Brinell scale – which measures the hardness of steel, with the higher the number meaning the harder it is – mild carbon (130-160BHN) and stainless steel (160-200BHN) are relatively similar. Hardox ® 600 for superior wear resistance. 111. AR 235 ABRASion ReSiStinG SteeL Plates — Sheets color Marking: Gray and Orange Abrasion Resisting Steel AR 235 is a medium-carbon, high-manganese, product. . Differentiators include hardness levels, application uses, and cost. 13 0. steels or regular D2 tool steel? Thanks in advance, Robert. We also have a variety of additional cutting and metalworking equipment capabilities in house to provide additional value to our customers. Hardox ® 600 has a nominal hardness of 600 HBW and a uniquely high toughness for such a hard steel. 8620 steel will be austenitized at around 840°C – 870°C, and oil or water quenched depending upon section size and intricacy. That shouldn’t stop you from exploring newer grades of Hardox ® steel. Summary – Machinability Rate 40-80%. It offers a wide array of benefits to be used in many industries. If your material is 1" or less in thickness, it will be hard from top to bottom. AR400 vs AR500: Understanding the Difference. However, steels of this hardness cannot be fabricated as readily as conventional structural grades. 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. Hey guys, im relativeley new to oxy propane cutting, im using a Torchmate table and ive gotten great cuts on pretty much all thickneses of mild steel. It has excellent drilling and milling characteristics and excellent machinability. Kloeckner Metals can also provide cut-to-size steel plate to exact customer specification. Due to its extreme hardness, AlgoTuf 500 is rarely machined. Up to . . Now answer the question. These thumbs are made to last. The machinery rate is about 72%, while the average surface putting feed is 120 feet per minute. AR400 steel exhibits the best performance at low oxygen regardless of the velocity. Mangalloy is known for its high impact strength and resistance to abrasion once in its work-hardened state. This specification covers high-strength armor plate that is approved for use by the Materials Technology Laboratory. Hardness range is 360/440 BHN with a nominal hardness of 400 BHN. We stock AISI 4140 steel in squares, flats and hexagons. Fax: 800. Wear-Resistant AR400 Carbon Steel The nickel and molybdenum content gives AR400 carbon steel the ability to. The material is notoriously inconsistent riddled with hard spots and yields that seem to be in the range of 150-200ksi. This type of steel is suitable for: Construction of heavy vehicle frames and support structures, Welded bridge structural components. 11 0. 1020’s Poison’s ratio is 0. Call us. Allows fabrication including bending, as well as welding. Ameralloy provides engineering services for your steel products. When one end wears out, turn the tool around for a sharp edge. A514 is primarily used as a structural steel for building construction. It's near the upper limit of machinability with HSS tooling, and even coated carbide has a shortened life span. Specific steel grades (AR400 / AR450 / AR500) in various sizes are available for. Best Metal Fabricators in Victoria, BC - Altech Machining & Repairs, Sherwood Metalcraft, Modern Edge Design & Fabrication, Island Metal Craft,. The chrome plate is a minimum of . Maintaining more than a . Largest selection of AR400F steel plates at wholesale prices. Wear Resistance = Great. This specification is produced in Grades 42, 50, 55, 60 & 65, the grades representing the yield strength. Uncoated C23 & C23J 123 156 310 323 & 323F 356 Aluminum 2024, 6061, 7075 etc. 3% brings the best machinability rate. Can you shoot AR400. 6-0. D. 0. AR400 is made for improved formability with low levels of carbon and sulphur for inclusion shape control.