Welding ar400 steel. The welds and joints will be high quality. Welding ar400 steel

 
 The welds and joints will be high qualityWelding ar400 steel Hardox® 400 is an abrasion-resistant steel with a nominal hardness of 400 HBW

When it comes to 304 stainless steel vs. 50 dual-phase ferritic-martensitic stainless steel, and AR400 martensitic hard plate. A514 Steel. Gauge. For AR400 I think E71-T8 is a much better choice. Jeff7 Lifer. AR400 is a quench and tempered steel and may be difficult to weld due its high strength and hardenability. You can find hardness levels for AR400, AR450, and AR500 on their respective pages. The highest deposition rate gas-shielded flux-cored wire is E70T-1. Carbon Equivalency (47) 1/8″ to 1″ Thicknesses. A514 can be cut with. 25mm, on the other hand, the minimum thickness of the galvanized coating is 0. The volume of the steel bar is the product of the area of the cross-section and the length: π x r 2 x l = 3. A radius of 2. Welding Stress Calculations4140 steel is a low alloy steel plate. 3% carbon and 12-14% chromium. Id love to see a comprehensive article on applications of different rods and wires for both steel and Alu. It’s often referred to as Hadfield steel, or Hadfield grade, as Sir Robert Hadfield discovered it in. By fostering knowledge, embracing change, and providing real-world opportunities. . Easy. The adequate preheat is usually recommended by the manufacturer of the steel. 0. Heating will remove the temper, we heat AR to soften it for drilling holes into it. jpg. Plasma Cutting. However, they differ in terms of hardness. - not applicable (1) for smaw process, weaving shall be 3 times core dia. x 14 in. In order to simplify the. Joined: Fri Jan 07, 2011 4:40 am. A514 AR200 abrasion resistant steel plate is a good candidate for some processing techniques. AR400 is a quench and tempered steel and may be difficult to weld due its high strength and hardenability. Kind Regds. Abrasion resistance (AR) steel is proven to be the ideal solution when corrosion resistance and wear resistance is essential. In stock and ready to ship. AR400 abrasive resistance steel plate is intended for higher, impact, wear applications where cold-bending and very good weldability is important. I have tapped dozens of holes with one tap and had one hole break a few. heavier thicknesses for internal soundness. Today we will touch base on some key points to look out for when stick welding with 309 rods! It can get messy and a little difficult when you are first star. Using the conventional welding practices, like SMAW, SAW, and GMAW, MIL-A-46100 armor plate can be welded. The base steel around the weld rapidly heats and cools during welding, resulting in a heat affected zone (HAZ) with high hardness. I am thinking of saving a little money and use A36 for my temporary repair. With the addition of our weld wire line, we have brought a new sense of ease and confidence to the wire buying process. 101. When rebuilding buckets I usually use AR-235 because you dont have to preheat, However I bought AR-235 for one of my jobs, it was a drop. Location: Near. arc welding video . AR400 | AR400F Steel Plate. Relatively wide chemical and property ranges. Reply. Strength, Yield Strength ksi (MPa), Tensile Strength. HR A569 Steel Flat is stripped from coil and A36 is rolled as bars. (°c) ea2 + uv420ttr flux & el8 + lincoln 780 flux (for pema) e7018 welding consumable chart er80s-b2 e8018-b2 eb2 + uv420ttr flux 350°c 350°c for. AR400 steel? Making some new KD's. What is SA516 grade 70 steel? Out of the four grades—55, 60, 65, 70—that are available for this steel, grade 70 is considered the most widespread. W. CO2, the weld has more ductility, more elongation, in almost all cases better charpy V notch tests. (10) Spools of Alcotec "Almigweld ER4043" Spool Gun Spools. Xometry offers instant quotes on metal laser. What base metals can be hardfaced? Carbon and low-alloy steels with carbon contents of less than 1 percent can be hardfaced. If you are looking to weld AR400 steel, you will need a welding torch and a welding machine. The all-new technical support section of the SSAB web is probably the world’s most comprehensive guide to use of advanced steel. Any combination of these steels may be welded together. You will also need a welding rod and a welding helmet. Choosing a Welding Power Source. 5". Wear Resistance = Great. You would want to use AR400 steel if your activities will need high wear resistance levels. So, AR500 is an Abrasion Resistant Steel. welding ar400 steel . Welding Ferrous and Non-Ferrous Metals. This seems extremly high, but I never heard of AR 400 Steel. •. It has more hardness than the AR400 steel plate with good formability, good weldability, good ductility, good strength, and good impact resistance. At 24 inches by 24 inches the weight goes up to 61. EdDanzer (Mechanical) 11 May 04 10:55. Then I might have a remote possibility of helping you. Titus Manganese will work harden from 280 BHN to 550 BHN—which is an increase in hardness of over 200%. use inter-pass temp control. Miller 225 Thunderbolt (my first machine bought new 1980) Miller Digital Elite Titanium 9400. A36 Steel Plate. AR400 steel plates are suitable for applications that requires a good level of abrasion resistance (i. Clif-Clad® chromium carbide overlay , Tensalloy™ AR400 and Tensalloy™. 1-800-745-3962 [email protected. This Standard applies to the welding of base metals 3 mm (1/8 in) and thicker. In addressing these requirements, this code takes a comprehensive approach in outlining specific connections and welds, such as groove welds, fillet welds, and plug and slot welds, and it also touches upon numerous other considerations, such as. Stocking over 50,000 Shapes, Sizes, Types and Lengths of Steel, Aluminum, Stainless, Brass, Copper, Cold Finish Steel, Tool Steel and Alloy Steels among our network of warehouses, at Wholesale Prices. 7 times that of abrasion-resistant heat-treated steel, Hardox 400, having a nominal. Our main products are impact resistance 11-14% Manganese steel plate/bar, wear resistance Plate AR400, AR450, AR500, Military Armor 12560/46100 and A514 (T1 steel), A572. . e. All our AR400, AR450 and AR500 have additional alloying elements which increase formability and enhance weldability. challenge no. 2 meters above the ground, with an anti-deformation angle of 1 to 1. The grain size is also enhanced and uniformed in this process. Good weld-ability. S. Advantages/Disadvantages. While the inner surface provides exceptional abrasion resistance, the outer surface cools slower, remaining more ductile, with a hardness of 250 BHN. TIG (GTAW) or MIG (GMAW) welding of AISI 4140 low alloy steel to 1045 material, 1018 material and ASTM A36 (Carbon steel) is carried out using ER80S. Heating will remove the temper, we heat AR to soften it for drilling holes into it. 2023-10-09T07:12:52-04:00 Previously, if you needed to do out-of-position welding repairs on your Chrome Carbide Overlay (CCO) hardfaced equipment, you needed to use a tool steel type hardfacing. Some of the most reviewed products in Welding Rods are the Lincoln Electric 1/8 in. 2. WELDING AR400 & AR450 have excellent weldability that customers rave about and can be welded. Mild steel can also be welded more easily than AR400 steel, making it ideal for applications where welding is required. AR400F is a through-hardened, abrasion-resistant plate with a nominal hardness of 400 HBW. The temperatures should not pass 400°F and heat treatment after welding is not recommended if you want to maintain the original hardness levels. Steel Plate & Sheet Alro Steel Metals Guide ASTM A-514 Plate *This grade of steel may be susceptible to cracking in the heat-affected zone of welds during post-weld heat treatment (stress relief). And any advise you can offer on welding AR400. AR 400 plate. it can be a little more difficult to form and pre-testing of both welding and post-welding heat treatments is recommended. Sheet of 5' x 5' x 3/4" A36 Mild Steel K Tool 22 Ton Air / Hydraulic Bottle Jack. The normalizing process is designed to relieve stresses, which results in improved ductility and toughness. 2, W186) plus a “Construction” standard (e. ASTM A572 contains 5 yield point grades: Grade 42, Grade 50, Grade 55, Grade 60 and Grade 65. ASTM A514 is the standard specification for high yield, quenched and tempered alloy steel plate, suitable for welding. Thanks to the excellent impact and wear resistant qualities of our Tensalloy™ steel wear plate—in particular our AR500 — it is used by a number of industries for their toughest applications. 03-13-2010, 09:48 AM. If your activities call for high wear resistance levels, you should choose AR400 steel. Wear Resistance = Great. . Welding. The production cost of AR400 Wear resistant steel plate is relatively high, which is much higher than that of simple low carbon steel such as A36 or 1018. When it comes to cost, Hardox is more expensive than AR400. Gas-shielded flux-cored wire offers versatility for welding AR plate to heavy equipment because it can be used. (10) Spools of Alcotec "Almigweld ER4043" Spool Gun Spools. GTAW 용접법 이 방법은 비교적 두께가 얇은 Sheet , Strip 또는 Tubing 등의 용접에 매우적 합하며 현장에서는 Root Pass Welding 및 우수한 용접품질이 요구되는 곳에서 도 사용된다. Welding. AR400 is a quench and tempered steel and may be difficult to weld due its high strength and harden ability. Easy-to-Weld A572 Alloy Steel Sheets and Bars. Fullmetal tv . It will harden if heated beyond its transition temperature and then cools too quickly. You can find hardness levels for AR400, AR450, and AR500 on their respective pages. COMMONLY STOCKED SIZES. While AR450 steel is similar to AR400 and AR500, there are some variances that make each unique. BTW AR400 is similar to Hardox 400 etc. 5 degrees and a butt gap of approximately 2mm. AR400: This steel provides a high degree of hardness and strength because of its quenched and tempered chrome-moly, boron treatment. Heat it up red hot, straighten. 250” - 1”, widths 2” - 10” and lengths up to 20’. In fabrication and construction, the composition and grade of the steel plate materials used have a tremendous effect on the end product. I checked with Bobcat and with other skidsteer dealers (caterpillar, etc. 308 I have rocked it at 25 yards with . The self-shielded E71T-14 wire has core materials which explode in the arc, volatizing the steel coating, minimizing cracking and porosity. Still, this is a typical chemical composition for AR400 steel: Carbon, 0. AR400 is “thru-hardened”, abrasion resistant, alloy wear plate. References Cast irom, ASTM A48, structural steel fro bridges and structures, ASTM A7. They are designed to weld quickly, looking good in appearance. The most common shielding gas combination is 75% argon and 25% carbon dioxide. Service Temperature is 400°F. General Info About AR450 / AR450F. Similar to helium, CO 2 improves penetration when. 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). Directions. D2 steel has a hardness of 60-62 HRC when heat treated. Allows fabrication including. They're easier to weld and more scratch resistant than zinc-galvanized steel sheets. A high strength material with a yield strength over 100 ksi, QT-100 (ASTM A514) is used in a multitude of applications. Induction hardened pipe is achieved by a unique heating/quenching process. This will need to be completely rebuilt with AR400 or Wearox down the road and I will have to budget for it. AR400F is quenched and tempered through hardened wear resistant grades of abrasion resistant steel plate used for high impact and abrasion resistance. AR400 steel sheets. Direct sale pricing. AR400 or Wearox 100 for abrasion resistance. It is 43. The nickel and molybdenum content gives AR400 carbon steel the ability to resist wear better than all other carbon steel. 1 Pa (N/m 2) = 1x10-6 N/mm 2 = 1. Rockstar 400 Plate is a high-carbon alloy steel that is specifically designed for abrasion and wear resistant applications. Welding. Steel Warehouse supplies AR400 steel plate, sheet, and coil, specifically designed for abrasion and wear-resistant applications. Metal Fabrication::: We have the biggest machines in the Midwest P: 816-331-7100 F: 816-331-7729, 17247 South US Hwy 71, Belton, MO 64012 or emailDisclaimer: I haven't done AR500, just AR400. This process alters the microstructure of the steel through the pipe wall, resulting in an inner surface hardness of 600 BHN. bracket for an exhaust pipe, add Vanadium and increase the carbon a bit; there was a grade for that, 6150. The tensile strength of A514 alloy steel is specified as at least 100 ksi (689 MPa) up to a 2. In my hands on experience with AR400, joints that are free to move/contract are one of the best methods for reducing cracking during welding. The need for welding of the AR400 was limited. Welding anchors to be poured in concrete to support steel columns. While each grade is a pressure vessel quality high carbon low alloy steel plate, tensile strength varies among them. 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. In fact, Clifton Steel’s Clif-Clad chromium carbide overlay plating can withstand even severe. The milwaukee cobalt bits haven't needed resharpening but they're not cutting like they should. The hardened steel must be hard and strong enough to destroy the bullet upon impact completely. 1, Structural Welding Code—Steel. Strip down and drench yourself in used motor oil. Hardox ® 600 has a nominal hardness of 600 HBW and a uniquely high toughness for such a hard steel. TOP. I got a funny look from the guys when I asked if I should be using straight co2. 36: E70T7-AZ-CS3. Due to A588’s specific coloring, you will need to consider color matching when welding. While AR450 steel is similar to AR400 and AR500, there are some variances that make each unique. Pipeline steels X65, X70, and X80 feature similar erosion-corrosion behaviour. All I was told that it was AR400. It is a silicon killed, coarse grained steel that requires careful welding techniques. To be classified as AR500, the hardness needs to clock in between 477 BHN and 550 BHN. While targeted at more severe wear conditions, Hardox ® 600 can still be cut and welded, making it an excellent choice for high-performance applications. 05-03-2005, 09:17 PM. The right filler metal and proper preheating can help reduce crack sensitivity with AR plate. Easy. 4-1%, the machinability rate gradually decreases. I'm going to have the teeth flame cut from 2" AR400 plate. Start running like you just stole third base and your diving for home plate. For multi-pass welds. I am building a generous frame but not going too crazy. 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. 12 G – 3″. 250 in. 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. 7. To combat the high impact and wear, Clifton Steel recommends materials specifically designed for the impact and abrasion inherent in mining, construction and excavation. AR400 is quenched and tempered. But there are rather notable differences. 5 mm) thick plate, and at least 110 ksi (758. 15% and below creates ductile steel with unbreakable chips. 250) with beveling. The result is higher quality welds and fast welding speeds. I've used it to make silhouette targets for our shooting range. 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. It is typically used when abrasion resistance and high-impact. AR 400 plate. Remington Electric Chainsaw. The base steel around the weld rapidly heats and cools during welding, resulting in a heat affected zone (HAZ) with high hardness. Low-Carbon Steel Rods and Discs. 48" x 55-1/2" x 1/4" piece of AR400 Steel 18 Drawer Small Parts Organizer w/ Hardware Shown. Piece of 1-1/2" Thick AR400 Steel. This is an abrasion resistant, “thru-hardened”, alloy plate (AR400) product. This steel plate has a high yield strength and good weldability. The need for preheat increases with steel thickness, weld restraint, the carbon/alloy content. Flux-Cored (FCAW-S) Wire AWS A5. 6 – Structural Welding Code – Stainless Steel A common combination is W47. This steel is also categorized as SAE-AISI 1080. Likes 1. eplaeable eersible utting dgeAR400 steel is designed for abrasion and wear-resistant applications. Directions. Senior Member. 1 – Structural Welding Code - Steel AWS D1. This is a high-carbon alloy steel that is perfect for rugged applications that require high wear resistance. All heat-treated steels are sensitive to heat: in welding, stress relief, and elevated-temperature service. This is a high-carbon alloy steel that is perfect for rugged applications that require high wear resistance. dam w/clay around each hole to be drilled to keep fluid in. When compared with AR400 steel, AR500’s increased surface hardness allows it to outperform in. The milwaukee cobalt bits haven't needed resharpening but they're not cutting like they should. ≤ 0. Crush wires can also help on tee joints. This is a high-carbon alloy steel that is perfect for rugged applications that require high wear resistance. These elemental differences help the steel achieve a higher surface hardness. Overview. and go all the way up to 13 in. Innershield® NR®-311 from Lincoln Electric is designed for high deposition rates and fast travel speeds. There are plenty of folks welding AR400 with mig and since ar500 is very similar, I would think it would work as well as 7018 Ireland Comments for Mig on digger buckets. One of the main disadvantages of AR400 steel is its high level of brittleness. SSAB’s ASTM A656 Grade 80 steel plate is a formable, high-strength, low-alloy hot-rolled material that has been developed for applications where increased strength-to-weight ratios are required. I plan on using 1/4 Ar500 plate but am unsure of the process needed to weld this type of steel. Cast steel is easier to weld, but the metal stretches when heated, which can lead to distortion and fractures. 75 thru tapped holes. It is considered to have fair formability. Repairing AR400 Steel Plates for Gun Range. welding process preheat temp. speed around 400 IPM. AR400; AR450; AR500; Manganese Steel; AR250; A514; Chocky Bars; 4150 Steel Bar; Scrap & Recycling. Product and ApplicationHardness and toughness. jackal Titanium. Edge RetentionI am going to put some new steel targets on my 10 shot KD trailer. Min Order: 1 ton. When welding cast iron welders must pay attention to any potential cracking. The AR400 plate is being used as a liner on the inside of the vessel in an abrasive process. At Clifton Steel, we’ve had a long history of providing innovative solutions and being a one-stop shop. Adequate welding procedure. WELDING AR400 & AR450 have excellent weldability that customers rave about and can be welded with simple procedures and common consumables such as E7018 inclusion shape control. The preheat should be uniform thought out and around the joint. AR400 is a quench and tempered steel and may be difficult to weld due its high strength and hardenability. All low hydrogen electrodes must be baked prior the use. The arc transfer is soft, letting it melt onto the puddle in a small to medium droplet mode. You will need at least a 150F preheat that goes out 6 inches of either side of the joint. Holding the steel at or near stress-relievingAs hard and tough as our wear plate, Hardox ® pipes and tubes offer outstanding performance when you need both high abrasion resistance and a lighter product. The welds and joints will be high quality. General Info About AR450 / AR450F. Depending on the grade this may vary by 25-50 ºF. Abrasion resistant steel is created by quenching and tempering forged steel plates. Hardox is not that bad to weld basic preheats will help but for the most part it welds much the same as plain carbon steel. Rapid cooling, highly restrained joints, and/or excessive hydrogen in the weld metal or filler metals are among the biggest culprits of cracking. Hardness Conversion Chart; Metric. The need for welding of the AR400 was limited. 5" wide and 17' long, and 3/4" thick. hardened surfaces, Ultima 601 becomes the ideal abrasion resistant product that can handle the rigors of extreme maintenance problems. CMC Impact Metals’ advanced heat treating, quench and tempering process produces a superior hardness combined with high strength that results in a lightweight, strong and wear-resistant steel capable of withstanding harsh conditions. Hardox is a wear resistant steel; Also, the combination of hardness and toughness made this steel the best choice when looking for both properties. ). If the weld will not be exposed to abrasion it is possible to weld with E70S-X or E71T-1M etc. 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. Typical hardness range is 385/425 BHN. Workmate; MANG-312; Nickel-90; Ultra-100; Ultra-200; Ultra-300; Alumina Ceramic Wear Tile; Personal. Here are the answers to some of the most frequently asked questions about filler metals and welding best practices to help improve weld quality, productivity and overall welding success. Grade 70 has the highest tensile strength of them all, between 485 – 625 MPa. com and get the best quality products with on-time shipments. Abrasion resistant material. Re: ar400 steel 400? Dunno, for rifle, I guess it would be OK at longer ranges. homemade. This can make it more. Mild Steel Plate Black AR400 is a flat shaped plate of AR400 Black Mild Steel. I usually work with 1" and above, and use mist. ASTM A572 includes five grades: 42, 50, 55, 60, and 65. A good rule to know is brinell hardness divided by 2 is the approximate tensile strength. Amarillo. 00/pound. Preheating Steel Video. Hardness range is 360/440 BHN with a nominal hardness of 400 BHN. From precision cutting to punching, bending and welding, we have the capabilities to transform metal into what you need. Amarillo. Tha AR400 we used lined a log chute and was well supported by structural steel. Slight preheat can help but does contribute to the peak temperature achieved during welding. Welding LH-D Electrodes Open Root Pipe Welding. Special Equipment at. I am welding Ar400 in the floor of a dump truck that has a heated bed. The tensile strength of AR400, often referred to as the ultimate strength, has been measured at about 200 kilograms per square inch, far more than. AR500 will take hits at close range from . Design values of additional material mechanical properties for structural steel. AR400 = 400 brinell harness . Dia. Start new topic;Tig Welding - Tig Welding Aluminum - Tig Welding Techniques - Aluminum Tig Welding Tig welding tips, questions, equipment, applications, instructions, techniques, tig welding machines, troubleshooting tig welding process. A656 is the standard specification for hot-rolled structural steel, high-strength low alloy plate with improved formability. 5" wall pins will be 2" welded to the. TIP NO. Ours was 1045 2" square into an A36 plate 3/4" thick. AR400, or. AISI 4330 alloy steel is forged in the temperature range of 1204 to 982°C (2200 to 1800°F). a. After quenching test the material using a file. AR400 | AR400F Steel Plate. Before welding, the 200mm area on either side of the reverse side of the weld will be simultaneously heated at multiple points to ensure uniform preheating temperature. or even more. Therefore, AR400 will have a lower hardness than AR500 / AR500F. Intended for moderate wear applications, common uses. 16 cm 3 (r = 1/2 x diameter, l = 1 m = 1000 mm). AR400 Flat Bars; ASTM A514; ASTM A829 AISI 4130/AISI 4140; Marine & Offshore Steel Plate. Hardox ® 400 is a trusted steel in the Hardox ® wear plate family, with a heritage of hardness and toughness going all the way back to 1974, when Hardox ® was launched as the world’s first bendable wear steel. AR450 steel is a high-carbon steel alloy that has a surface hardness between 400-477 BHN. Ultra-Wear-Resistant AR500 Carbon Steel. Norm right from Lincoln. 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). 1 code. Tap-Tap. When deciding between the two steels, take into consideration the end application and the quantity that you will need. Branches featuring AR400 | AR400F Steel Plate products. 030-Inch MIG Wire – Best Overall. Choose from our selection of hot-rolled steel, including over 4,000 products in a wide range of styles and sizes. E70T-1s are widely used in structural steel fabrication shops. Kromite® #3 (4140/4150 mod. The base steel around the weld rapidly heats and cools during welding, resulting in a heat affected zone (HAZ) with high hardness. For instance, you can use AR400 to attach to digging blades and others of the like. This specialized plate is designed for severe impact and abrasion applications. ) Mirro-Krome 60® Machining Guidelines; Close; Wear Pipe & Wear Plate. In contrast, the cost of AR400 ranges from $400 to $650 per tonne. Disadvantages of AR400 steel. Much like AR450 and AR400, AR500 steel is a specific type of abrasion resistant steel with a surface hardness of 477-534 BHN. What Are The Major Elements Of 4140 Steel. The abrasive wear resistance of the mild steel was improved after deposition of hardfaced layers by up to 5. Experiment with larger bottom dies, which would also probably require more metal on the part sticking up on your skids (so it can bridge the larger die). This specific steel has good formability, weldability, and notch toughness when in the as-rolled condition. You would want to use AR400 steel if your activities will need high wear resistance levels. Tap. you can go down to E80, or 9018 but I don't know about using E7018 to weld AR400. Watch on. AR400, also known at Ford Steel as Wearalloy 400, is a high-carbon steel with a nominal hardness of 400 and a minimum hardness on the Brinell scale of 360 to 440. Rather than buy and weld adapters to the tooth body, I'm planning on flame cutting the body to the profile of the adapter then milling the end of the body to 1. Where a weld will be exposed to abrasives, most of the joint can be filled with lower-strength material, with a capping layer of abrasion-resistant weld material applied to complete the joint. General Info About AR450 / AR450F. Although not used in structural applications, it is very common that we need to weld AR plate either to itself (or other hardened steel) or to mild steel such as ASTM A36. Higher strength welding filler materials (having a maximum yield strength of 900 MPa (130 ksi) can be used for Hardox. T21 is a premium titanium-carbide wear plate that provides superior welding and forming characteristics without increasing the hardness of the steel. This grade steel is a high-strength, low alloy steel plate. Tweet. This combination of hardness and strength is found in AR500 Steel and AR550 Steel.