Corten Steel Plate - A588. I'm making scrapers for the double rib press wheels on my JD drill and considering using some sort of abrasion resistant (AR) steel 1/8" thick. AR400 is a quench and tempered steel and may be difficult to weld due its high strength and hardenability. • Recommended in Aluminum Alloys and Magnesium Alloys. A514 AR200 abrasion resistant steel plate is a good candidate for some processing techniques. The job should between 50 and 80 holes so I'd like to avoid using the wrong drill and burning them up to fast. Rusty Shackleford. Ar/Hb 400 Wear Resistant Steel Plates. Stick: If you Google TriCon Tri-Braze, it will bring up the data sheets on the chemistry composition and recommended welding proceedures. For estimated theoretical weights only (not for engineering purposes). From a workability standpoint, AR400 is "sort of" machinable, with a lot of effort, whereas AR500 is nearly impossible to drill or countersink without professional equipment. Tap or Call: +1 (800) 237-0113. The machinability of AR400 plate is poor. Eventually, the customers and their team will be the best judge of which material is required for their project. It is a high carbon steel with good hardness and moderate machinability. The need for welding of the AR400 was limited. You can find hardness levels for AR400, AR450, and AR500 on their respective pages. Start with a smaller “pilot” hole. Weld steel stops in place to set the 22" firewood depth. Request a Quote. However, this increase in strength and abrasion resistance will make the steel less malleable. Any blade (teeth or abrasive, rotating or linear or bandsaw) is going to have a hard time (no pun intended) cutting through hard steel plate. We deals in AR400,. AR Medium steel plate grades – which include AR200 and AR235 – have a surface hardness of 180-260 BHN. Higher cutting speeds may cause rapid deterioration of drill bits. Crush wires can also help on tee joints. Details. Still, this is a typical chemical composition for AR400 steel: Carbon, 0. AR200 steel plate is a carbon-manganese steel product with a nominal hardness of 200 Brinell (HBW). The job should between 50 and 80 holes so I'd like to avoid using the wrong drill and burning them up to fast. 50%). . Due to the large difference in yield strength between the AR400 plate and the filler material, minimizing weld restraint is critical to control cracking of weld. I remember when I built the first one it toe nailed like a son of a gun. In fact, grades of steel that are abrasion-resistant (AR) have similar or higher BHNs than military grades of steel. If you spreader wet topsoil out you can go over it with this and back drag it and make it look good. When one end wears out, turn the tool around for a sharp edge. AR400 steel and Drills. What is AR400 steel used for? AR400 stands for abrasion resistant with a minimum hardness on the Brinell scale of 360 and a nominal hardness of 400. I am not familiar with QT400 other than it is a abrasion resistant steel. Watch on. Preheat to 150°F-300°F (66°C-149°C) in order to slow the cooling rate. Start running like you just stole third base and your diving for home plate. warehouse sitting on 18 acres. We have No Minimum Orders, We Cut to Size. Miller WC-115-A. 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. 05-15-2011, 05:16 AM. Originally posted by Sonora Iron View Post. W. TV . 91. giving it the exclusivity to be used in moderate wear areas. Differences between AR400 and AR500 Steel Plate29Pcs Drill Bit Set, 135 Degree Tip High Speed Steel with Black and Gold Finish, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case 1/16"-1/2". Some cutting oil is nice. 1/4” AR400. While the steel may be of excellent quality, it might underperform softer-rated steel. Owen joins me again this episode to try to poke some holes in a 5/16" plate of AR400 steel. AR200 steel is an abrasion resistant medium steel plate. Determine the spindle speed (RPM) and feed rate (IPM) for a drilling operation, as well as the cut time for a given cut length. As a result, customers can expect longer-lasting wear parts in some of the toughest applications. or thicker, use cutting fluid or a multipurpose oil like 3-IN-ONE. AR400F is quenched and tempered through hardened wear resistant grades of abrasion resistant steel plate used for high impact and abrasion resistance. 5"exh, DOT's, 87 octane. AR400- better for impact applications, AR500- better for sliding applications. M2 ammo made a crater about 1/2 way through. I have drilled AR400 before but never taped it. Oct 29, 2021. Also, if you have a choice, a 3/8-24 will tap with a fair bit less torque than a 3/8-16. Top. Period!!! How to drill hard steel - Hardox, high hardness, high strength and toughness how easily can it be drilled with a hand power drill and a TTP Hard Drill Bit?(. . Bhn 400 Abrasion Resistant Wear Ar Steel Plates. 4. As a general rule, AR450 and AR400 are the “sweet spots” in terms of good formability combined with good hardness. 25%; Manganese, 1. And AR steel is rather on the hard and abrasion-resistant side. AR400F is produced through austentizing, water quenching, and tempering. Make sure the line is in the exact spot where you need to drill the hole. We've tried the end mill without success. Speed and Feed Calculator for Drilling and Milling,easyspeedsandfeeds. Hot Rolled Ssab Ar 400 Abrasion Resistant Steel Plates. The job should between 50 and 80 holes so I'd like to avoid using the wrong drill and burning them up to fast. AR200 is not intended for structural applications. The larger the forming radius, the more the spring back angle. ; Louisville has consignment programs offered for. When a project calls for AR plate, it is generally because of the length of wear on the plate is minimized. A633 Gr. 62x54R I have been down this road before. You could try to drill a hole in one and see how it goes, or if you really want to know, You could check it with a brinell hardness tester. The milwaukee cobalt bits haven't needed resharpening but they're not cutting like they should. AR500 is a medium carbon, manganese alloy with moderate Brinell hardness. Designed to drill holes on extremely hard materials 3keego HCR Titanium Coated Type. The main disadvantage of self-shielded flux-cored wire is that many of the popular wires lack required impact properties (typical for classifications T-4, T-7, and T-11). atomarc Posts: 264 Joined: Sun Oct 04, 2009 12:13 am Location: Eureka, California. COMMONLY STOCKED SIZES. 95% carbon. The main pin is 4140 heat treated, high strength steel (TGP), for attaching the thumb tines to the boom of your machine. Make a dot on the steel with a pencil to mark where the location of the hole’s center. Simple, single bend parts will have a +/- 0. The waterjet takes a few minutes of orbiting when you are trying to pierce aluminum or stainless 10" thick and makes one hell of a mess. This hardness level makes AR Medium grades suitable for. Achieving precise holes in stainless steel can be difficult, but it's possible with the right tools and techniques. When compared with AR400 steel, AR500’s increased surface hardness allows it to outperform in certain high-abrasion applications. Hardox® 450 is an abrasion-resistant brand with a hardness of 450 bhn. Therefore, AR400 will have a lower hardness than AR500 / AR500F. . For lube, I don't think you can beat the dark sulfurized cutting oil as is used for pipe threading. 4. 0110 5375 5376 Medium Carbon and Alloyed SteelBased on the rating of 160 Brinell B-1112 steel, the machinability of metal machinability chart is expressed as a percentage. In the case of AR400 steel plate, 400 is the plate’s nominal hardness, and it has a hardness range of 360 to 440. I'm making scrapers for the double rib press wheels on my JD drill and considering using some sort of abrasion resistant (AR) steel 1/8" thick. When deciding between the two steels, take into consideration the end application and the quantity that you will need. 6″x6″ Anvil – AR400 Steel Dual Thrust Bearings;. Differentiators include hardness levels, application uses, and cost. 001-. Each grade offers a minimum nominal hardness for use in moderate to heavy wear applications. Just engage the power feed and watch it work. AR plate is a high carbon alloy plate. Gr50 will springback still is only 0. 00/pound for 500. Abrasion-resistant steel, known as AR400, has a nominal hardness of 400 BHN. However, remember that the. Make a divot in the steel with a hammer and center punch. (10) Spools of Alcotec "Almigweld ER4043" Spool Gun Spools. That is about it. Use the bullet energy calculator below and reference the max bullet energy in table above to find the correct AR500 steel plate thickness for your steel target. CALL TO ORDER (270) 227-2397. To give you an idea of the difference: A36 has a yield point of 36,000psi and a tensile strength of 58-80,000psi. I've used it to make silhouette targets for our shooting range. ASTM A514 is a low carbon quenched and tempered alloy steel that may be a low-cost, excessive performing materials for structural use and excessive wear machine functions. Made from high-quality 1/4-inch AR400 steel plate, the pistol targets take a licking and last for years. The AR400 steel plate is excellent for applications that weldability and formability are a must. 25-inch plate steel and are designed for additional brackets to be welded on, using the truss as a reference, so the differential can bolt-in to the rearend of a JK. Second, use a slow, consistent pressure when drilling. Post by hobgobbln » Thu Jan 24, 2013 12:17 am. AR500 is rather hard. If you spot heat take it to a medium red and let it cool the drill as if on mild steel. Structural Steel Plate . The number for AR plate refers to its average harness on the Brinell scale. Step 2: Place a clamp around the pipe, so that it is aligned with the line you just drew. The material is notoriously inconsistent riddled with hard spots and yields that seem to be in the range of 150-200ksi. It’s a real gem on the Mozambique drill. Set the drill at a slow speed: For stainless steel, it’s best to start drilling at a slower speed setting on your drill. ft. Louisville has 5 truck flat-bed fleets. The leftover piece is 32. Some of these popular barrel materials include: Aluminum: Aluminum makes a great lightweight AR barrel when chambered for the low-pressure . This is the biggest drill I use. Compared to AR400, the AR450 steel plate offers more hardness without sacrificing formability and ductility. No further heat treatment needed. . Subgroups- low/mild carbon steel (up to 0. Hardox® 450 is an abrasion-resistant brand with a hardness of 450 bhn. What is AR500 Steel? Much like AR450 and AR400, AR500 steel is a specific type of abrasion resistant steel. When one end wears out, turn the tool around for a sharp edge. S7 tool steel properties. 45 – 0. 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. Manufacturers use these high-carbon alloys to produce knives, razors, drill bits and hand tools. To keep it short and simple, AR is an acronym for Abrasion Resistant. The job should between 50 and 80 holes so I'd like to avoid using the wrong drill and burning them up to fast. For AR400 I think E71-T8 is a much better choice. HSLA Steel Plate . AR450 steel is a high-carbon steel alloy that has a surface hardness between 400-477 BHN. I am using a magnetic drill press that has a reostat style speed adjuster on it. 308, . 22 Ton model - 25 gallon steel hydraulic tank, powder coated with return filter. com in category: Blog technology. 9300. Surface Footage 127 RPM SFM X 3. 내마모강 (AR400,AR500) 2018. It shows good formability, excellent weldability, and good strength. AR500 is a quenched & tempered, abrasion-resistant grade of steel plate. HARDOX: This can be seen advertised everywhere and complicates the choice for many. 06-10-2010, 01:11 PM. 125 . 098 . At 24 inches by 24 inches the weight goes up to 61. Re: ar400 steel 400? Dunno, for rifle, I guess it would be OK at longer ranges. [2] This allows mangalloy to retain its toughness . I think it is a fairly simple steel (chemically) so should be easy to heat treat again if it's too soft after plasma. It can be used on excavators up to 50 metric tons. AR200 can be machined, punched, drilled, and formed and is known to be an inexpensive abrasion-resistant material. 250″ thickness. It is 43. The -16 shouldn't be a problem though IMO. Targets will be 3/8 thick, 18" square at 500 yards and beyond. Tweet. As with other abrasion resistant steels, it does not have a defined chemistry, but rather, grade is determined based on. USA Quality Runser Custom Machining Thumb: This thumb is composed of two ¾” thick AR400 steel tines. 15% and below creates ductile steel with unbreakable chips. The sides will cost an additional ~$50, so the entire project will cost $200 plus supplies. For easier-to-drill metals like aluminum, brass or cast iron, lubrication isn't usually necessary. Tweet. Choose from our selection of aluminum-cutting drill bits, including over 4,100 products in a wide range of styles and sizes. AR400, or AR400F steel, is a high-carbon. 01 m. 2023-11-10T19:10:24-05:00 A recent customer commented about drilling holes through JADCO QT-PLUS ®. 4. 3 carbon Steel . Other AR steels are AR200, AR400 and AR500. . Brinell Hardness range of 470-540 BHN. Rigid tapping 3/4-10 in ar400 wear plates on cnc mill using a custom blended tapping oil from neucoCobalt Steel Ball End Mills with Two Milling Ends. Action Target only uses AR500 or AR550 steel be-cause they provide the perfect balance of toughness and strength for shooting. (A) 1 psi = 0. )( when used in a high impact situation) Can be welded with 7018 in vertical position, other positions require pre-heat. Q: will ar400 plate acts a barrier for an s7 tool steel single teethed drum bot [Tamil Nadu, India] A: [Mark J. Use on Stainless Steel. press with the flat down. Typical uses of AR steel, which is classified as a carbon steel, include chutes for gravel or coal in mining, liners for heavy equipment, and rifle range silhouette targets. Anything above 3/4" you need to run at 150-200 rpms or less,,, bigger = slower. Joined Dec 28, 2004 Location uk. This is a high-carbon alloy steel that is perfect for rugged applications that require high wear resistance. Step 1 – Mark the drilling Spot: The first step is to mark the spot you want to drill. 111. on-premise software solutions, CAD file management, compliance, and more. A 3/8" bit needs to run at about 400 rpms. 00/pound for 500. AR200 is available as mill plate, temper leveled plate or as coils. 6 - 32 Steel Aluminum . 2. atomarc Posts: 264 Joined: Sun Oct 04, 2009 12:13 am Location: Eureka, California. Not to mention that even a CHEAP solid carbide drill of that diameter and length is probably over . Chemical Composition: Carbon:Forming. If you're using AR400 I would think most people would have an adequate machine to run 1/16". It is graded by hardness not yield, so there is generally no minimum yield strength, like the. This is the biggest drill I use. 1018. For drilling holes in steel that's 1/8 in. com. The number usually refers to the brinell hardness of the plate . Summary. After my pilot hole is complete, i begin with a silver and deming bit (7/8) and drill through and have to redrill the hole again with a newer bit bc my first bit is always wear out and i am getting a little bit smaller hole than 7/8 the first time. It has more hardness than the AR400 steel plate with good formability, good weldability, good ductility, good strength, and good impact resistance. I went to my supplier and I can get a 10 foot x 8 inch wide piece of 3/8" AR400 for $150. AR450 vs. Put it in the drill. AR Plate (trade names such as:"Algoma 500 , AR500, Hardox, etc. You can cut AR500 steel using a plasma cutter and a properly tuned table. Note that excessive preheat may anneal the base material. Post by hobgobbln » Thu Jan 24, 2013 12:17 am. Since the thickness is less than one diameter, a 135* drill might work better than a 118*. USA. AR450: 430-480. 150 . The material is very resistant to abrasion and will achieve up to three times its surface hardness during conditions of impact, without any increase in brittleness which is usually associated with hardness. While the higher Although it has a lesser Brinell hardness value, AR400 will be more formable. 0015 0. Steel Weight Calculator used to estimate the weight of steel in squares, rectangles, flats, rounds & hexagons. A514 ≤ 2. Just make sure you buy from a reputable company. There’s really no single specific chemical composition for AR400 steel, as long as it meets the required hardness level. Our "weld test" was merely to verify the preheat was high enough that the weld would break in the throat before a "chunk" would pull out of the base metal. This is a "die steel" used in a variety of mining, crusher plants, and where ever a Brinnel Hardness of 418-512 is needed (Rockwell C 40-45). Drilling steel or metal is a quick way to dull your drill bits if you do it the wrong way. Drilling QT400. PRODUCT BENEFITS. 250 deep along with the 2 dia hole in the center. 49 $7. Hardox is not an alloy of steel but a company in. In this article, the production of abrasion-resistant steel plate is described and the differences between hardness levels are studied. Step 1: Selecting the Right Tools. Quenching occurs by bringing the steel to a high temperate, between 1,500 and 1,650F, then is. Full 2. I have a question though, I have a grapple for a Skidsteer that needs rebuilding, new pins and bushings and a new claw on one side. 72" Backhoe Grapple and Hydraulic Kit Set looks like a very stong, heavy duty grapple. 25dia tool. The 1/2-13 holes will be for securing the pins. We offer Wear Resistance steel plate , HARDOX 400 ( Sweden ) , ABREX 400 ( JAPAN ), NM 400 ( CHINA ), is a high-strength wear resistant steel plate with high hardness. or thicker, use cutting fluid or a multipurpose oil like 3-IN-ONE. AR400 abrasive resistance steel plate is intended for higher, impact, wear applications where cold-bending and very good weldability is important. Quenching & Tempering. 2-0. And AR steel is rather on the hard and abrasion-resistant side. It has a lower hardness of 360 – 444 BHN. Overview: Popular abrasion resistant steel grade that combines through-hardness with good levels of ductility and formability. I have drilled and made many parts from AR500 plate and have. 26′ x 100′ Down Draft table. AR400 is produced to 400 Brinell hardness and guaranteed to sink in water. If you have a area you want to seed that is hard packed with weeds overgrown this is the tool. Custom sizes available. Easily weldable with an E7018 rod. 315” thickness offered in 48”-81” wide cut to your requested length. 015” tolerance, bend to edge. Here at SendCutSend, we offer both AR400 and AR500 grades to suit any abrasion-resistant projects you may have. 22LR. AR400, or AR400F steel, is a high-carbon. Alro distributes and processes metals from over 75 locations in 15 states. If you are required to tap into the wear plate, ensure that the hole size is as large or larger than the thickness of the plate. AR400, or AR400F steel, is a high-carbon alloy steel with high wear resistance that’s supplied nationwide across our 40+ branches. AR400 Wear Plate; AR400 Wear Bar & Strips; AR500 Flats & Rectangles; AR500 Wear Plate; Metric Steel; Threaded Rod; Chrome Shafts. 4-1%, the machinability rate gradually decreases. The mfg of the plate y o have would be the best place to start. Mechanical Properties Hardness 360-440 BHN Yield Strength 140 ksiAR400 F Steel Plate is formable grade of Abrasive Resistance Steel Plate designed to accommodate applications where a life of wear is the primary cause for failure among other grades of steel plate. Use HCR Type Annular Cutter (Tungsten Carbide Tipped, TCT) and Magnetic Drill to drill through 25 to 50 mm thick HRC50 hardened steel like railway, armored t. The average drill press operator needs to be re-trained before they can drill for us. XSteel's 1/2" AR500 Shooting targets are designed for the heaviest uses such as gun ranges and law enforcement. With better heat and wear resistance than high-speed steel, these cobalt steel end mills can run at higher speeds and provide better performance on hard material, such as iron, hardened steel, titanium, and tool steel. Cobalt alloys are widely used because of such reasons: Cobalt alloys have high hot corrosion resistance. How To Drill A Hole In AR500 Steel. A633 is high-strength low alloy structural steel. While not a good candidate for forming and machining, AR400 plate is suitable for welding. I have located some AR400 steel 1/8" thick. TriCon TriBraze, the Sequel. AR500 is a grade of abrasion resistant (AR) steel plate that is known for its hardness, toughness, and resistance to wear and tear. Step 1: Use a pencil, marker, or whiteboard marker to draw a line on the pipe. I've used one to drill a bunch of 1 1/2" holes in 2 1/2" AR400. Differentiators include hardness levels, application uses, and cost. It is a fairly large blank ( to us ) has to finish at 21. There is no way for a bullet to get to the first plate without sliding down one of the 10 degree plates. Or a scribe or similar would work too. Heating will remove the temper, we heat AR to soften it for drilling holes into it. AR400 steel and Drills. AR200 steel plate is a carbon-manganese steel product with a nominal hardness of 200 Brinell (HBW). The 1/2-13 holes will be for. The API steel core is very hard, but not really very brittle. Next, mark the area on the Ar500 steel that you want to. While AR400+ grades are the most commonly used types of abrasion resistant steel, AR Medium steel is also used for applications requiring a harder, tougher material. AR400 Steel Hardness. Plates in Hardox ® 400 come in thicknesses from 2 to 130. 5 mm) thick plate, and at least 110 ksi (758. Now I'm pretty sure its AR400. 11. 4. It is 43. 1 inch shank DrillA potential customer sent in some AR400 Steel with laser cut holes of varying sizes. Tensalloy™ AR500 steel is a grade of abrasion resistant steel plate that offers outstanding wear and impact resistance. Miller Bobcat 225 NT (what I began my present Biz with!) Miller 30-A Spoolgun. Keep the “torch-to-work. Thanks, Griz. AR400 Steel Plate AR400 Steel Plate – Hardness 360-444 Brinell. I checked with Bobcat and with other skidsteer dealers (caterpillar, etc. I know for a fact that . The higher the yield strength, the more that the material springs back. AR400 is a specialty steel designed at the chemical level for improved wear resistance for very specific applications. 2 carbon Forgings Alloy - 300 to 400 Brinell: 80-110 70-80 50-60 40-50 20-30: High Tensile (Heat Treated) (Consult your material supplier)One common grade of abrasion resistant steel is AR400. Typical applications for AR200 steel plate include cement mixer drums and fins. (B) Minimum as-quenched hardness for obtaining desired hardness after tempering at 800 °F (427 °C) or higher. The nickel and molybdenum content gives AR400 carbon steel the ability to resist wear better than all other carbon steel. Tweet. Precipitation-Hardening. Re: Would AR400 steel hold up to a 308 One of the clubs I belong to has a 15y steel "popper" range with 3/8" AR500 plates. That's in 3/8" I buy drops from a guy that fixes garbage trucks and bulldozer blades. for hardness and strength. 5 carbon Tool 1. The Dude’s M42 Cobalt Drill Bits stand the test of time. This product is intended for applications where a good combination of abrasion resistance, formability, and weldability is desired. Marine and Offshore. For drilling holes in steel that's 1/8 in. The older fella there breaks out his stash of vintage tap magic for the job as well. This specialized plate is designed for severe impact and abrasion applications. A magnetic base drill does help too. Anyone know whether AR400 (abrasion resistent, BH 400) can be drilled easily with HSS or cobalt drills? Got some 1/2" AR400 plate coming for LR rifle targets, and need to drill a couple of 1/2" holes for mounting the finished targets on stands. Width. I'm making scrapers for the double rib press wheels on my JD drill and considering using some sort of abrasion resistant (AR) steel 1/8" thick. Norm right from Lincoln. (C) 1 in. Max. )( when used in a high impact situation) Can be welded with 7018 in vertical position, other positions require pre-heat. The base steel. Louisville is a 55,000 sq. AR400 steel is known for its exceptional mechanical properties, particularly its high tensile strength and hardness. • Not ideally suited for abrasive varieties of these alloys. A. Stock sizes of: 96” x 288”. They only contain small amounts of elements other than carbon and iron. Or a scribe or similar would work too. Many precision shooters will be fine with a 6″ or 4″ target if they consistently shoot 1 MOA or less. How to drill hard steel - Hardox, high hardness, high strength and toughness how easily can it be drilled with a hand power drill and a TTP Hard Drill Bit? (. I have some 5/8" solid carbide endmills that i would like to try a trochodial tool path with, basically just for practice and to test this kind of tool path. My background is in Engineering and I’ve been involved in projects before. 125 . So, AR500 is an Abrasion Resistant Steel. On the Brinell scale a steel qualifies as AR400 if it exceeds 359. Still, this is a typical chemical composition for AR400 steel: Carbon, 0. Step Drill Bit Set - Titanium Coated, High Speed Steel Drill Cone Bits for Sheet Metal Hole Drilling Cutting, HSS Multi Size Hole Stepped Up Unibit for DIY Lovers,3pcs. Surprisingly the Boron @ . The base steel around the weld rapidly heats and cools during welding, resulting in a heat affected zone (HAZ) with high hardness. AR400 steel is prevalent in many industries that require abrasion-resistant materials, such as construction, mining, and agriculture. AR400 is specifically designed for abrasion and wear-resistant applications. Please also feel free to contact us via email or phone. What is abrasion resistant steel plate?Abrasion resistant (AR) steel plate is a high-carbon alloy steel plate. It is intended for moderate wear applications. I've broke a couple 5/32 pilot drill bits and had to resharpen my dewalt black oxide bits every 2 or 3 holes now. Metals Depot - America's Metal Superstore is your complete supplier for industrial metals worldwide. as for the drilled holes they are 5/16 and used just to hols the plate down As a global leader and Wearalloy AR450 steel plate supplier, Ford Steel houses a variety of abrasion resistant plates in different sizes and thicknesses. Hello everyone, I'm new to the forum, but not new to welding. This material is characterized by a smooth, blue-grey-red finish with a hardened surface and while not a good candidate for forming and machining AR200 plate is suitable for welding. and A. I have quite a bit of 3" angle that is 3/8" thick that I will use for the majority of the frame. Top. Manufacturers use this carbon to increase the strength and durability of the metal so that it can be used for applications in which the steel will. Likes 1. Normally we laser cut everything but for this project I needed an extra hole for a prototype and I figured it would.