2-0. Search this website. 101. I couldn't find any data on what the correct speed/feed setting were for milling, so I "winged it" - 1/2 inch 4 flute quality USA HSS cutter, about 600-700 rpm. A36 steel is used. Learn More. Steel Warehouse supplies AR400 steel plate, sheet, and coil, specifically designed for abrasion and wear-resistant applications. Per Table 4. SSAB offers value added products and services developed in close cooperation with its customers to create a stronger, lighter and more sustainable world. Grades C is available up to 4" in thickness and Grade E is available up to 6" in thickness. Mechanical Properties. Each grade has a unique chemistry. A514 is much stronger and harder than 4130 steel. Explore the world’s widest range of high-strength structural steel. SA514 Grade B High Strength Low Alloy Steel Plate US $450-850 / Ton;You can make almost any steel shiny by machining it hard and fast. 0. warehouse sitting on 18 acres. A36 steel is suitable for various applications, including construction, general fabrication. ASTM A529-50 Carbon-Manganese steel angle is widely used in structural applications. 3% is classified as low-carbon steel. In The U. While each grade is a pressure vessel quality high carbon low alloy steel plate, tensile strength varies among them. 3-0. A514 T1 steel plate provides a high yield strength of 100 ksi min. There are 31 material properties with values for both materials. Common tools are made of high speed steel or cemented carbide steel, and carbide. As for ASTM A514 steel plate machinability, ASTM A514 steel can be done cutting, welding, drilling, milling, general machining and so on processing. The mild steel plate A514 Gr B steel material is created magnetic and has a high amount of ferrite and iron. Good weld-ability. Properties. Select your material below and expand the section to see a list. A514 steel had very few cracks, Fig. 0. , at the lowest cost. Are you also interested in further steel processing (machining)? Just like you, 70% customers choose long-term. A516 steel is the American Society for Testing and Materials designation for Pressure Vessel Quality (PVQ) carbon steel plate with a tensile strength between 380 – 620 MPa, depending on the grade. This means that 4130 is easy to machine and won't wear out tools excessively fast. ASTM A514 High Strength Steel Plate is a conservative tempered and quenched alloy steel plate relatively designed for structural applications. If 514 is the correct ASTM number, there is a table of alloys within the spec and one or more of these alloys are susceptible to brittle failure if. Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding A0514-81 ASTM|A0514-81|en-US Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding Standard A514 Standard Specification for High-Yield-Strength, Quenched. Cooling/Agent. A514 grade Q structural steel material, A514Gr. A514 Steel Plate: Low. AISI 304 (S30400) Stainless Steel ASTM A514 Alloy Steel. A572 is an HSLA steel plate with fair machinability. Challenge No. A516 Grade 70 Steel Plate. According to the theory of chromium poor, chromium carbide will be precipitated on the upper edge of the grain boundary of the weld and heat affected zone when the A514 grade Q quenched. [10 mm] and under in thickness, a Brinell hardness test may be used instead of tension testing each plate, in which case a tension test shall be made from a corner of each of. United States Steel was first to introduce this fine material under their proprietary name T-1 steel. Grade 50 is a Columbium-Vanadium steel that offers a minimum yield of 50,000 PSI. First, good toughness,. The grain size is also enhanced and uniformed in this process. General Info About A656. Sometimes, we find that custom stocking programs help our customers react faster to changes. 87 g/cm³ (0. Murfreesboro. Follow the links below to view complete property information. The carbon potential is close to eutectoid, maintaining a 1 h diffusion. ASTM A514 steel plate is a popular grade of quenched and tempered (Q&T) steel and it can offer high strength, weldability and machinability. I have a request for CNC milling of A514 steel plate. A514Gr. After that, the steel is cooled in a furnace. ; 100/130 over 2½-6" incl. It is a reliable and versatile material that can be used in a wide range of applications in heavy equipment manufacturing, construction, and. Welding. ASTM A514 steel plate, also known as T-1 steel plate, is a popular grade of quenched and tempered (Q&T) steel that offers high strength, weldability and machinability. Customers calling for Alloy A514 a lot of times are upset about dealing with fluctuations in their build schedules. The grades are listed in Tables 1-3. 4. 4140 alloy steel is generally harder and stronger than carbon steel. Obviously you want a hot rolled material so it doesn't warp up on you. Applications include truck & trailer frames, heavy construction equipment, and crane booms. The grades are listed in Tables 1-3. A283 Gr-C/D, A36, A572 Gr-42/50/60/65, A633 GrC, A514 Gr-F, A573 Gr-70; Related Industries Architectural. It is magnetic and heat treatable. For each property being compared, the top bar is annealed SAE-AISI 4140 and the bottom bar is ASTM A514 steel. Each grade has a unique. Grade A has a minimum yield point of 290 MPa / 40 ksi, versus grade C and D at 345 Mpa / 50 ksi. A36 mild steel is often compared to AISI 1018, A36 carbon steel is commonly hot rolled, while 1018 steel is commonly cold rolled. A514 steel plate is quenched and tempered for increased strength, and is roughly three times stronger than plain carbon steel. 00 inch/variable RPM: 2674, SFM: 700,. For each property being compared, the top bar is ASTM A514 steel and the bottom bar is SAE-AISI 1020 steel. Results are displayed up to a maximum of 200 materials per page. It is feasible in the construction process of open and closed air conditioning system, which can improve the ASTM A514 alloy steel plate construction speed and the firmness of the pipe connection. Different grades of A514 steel plate have different thickness, chemical composition and properties. This page shows summary ranges across all of. Yes, it’s true that the T1 steel can be quite hard. 9, ASTM A514 with thickness of 2-1/2 inches or under, the recommended electrode classification for SAW is F11XX-EXX-XX. Here are three common challenges that welding AR plates can present, along with their respective solutions. 5” thick, and a 90ksi minimum yield strength from 2. 25 in) 12:ASTM A283 General purpose, low-cost structural quality plate. 2 If the steel is to be welded, it. It’s classified as a high-strength-low alloy, or HSLA, material grade. Contact Totten Tubes for more information or give us a call at 800-882-3748. As a result, type 1 A513 steel frequently shows up. Certain chemical additions improve hardenability, strength, and toughness. ASTM A514/A514M grade B steel also has excellent mechanical properties and is ideal for use in high-stress environments. ~. While vanadium increases the hardenability of steel it also improves corrosion resistance and creep resistance. Metric. The ASTM A514 specification is the Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding used in applications where Yield Strengths of ≥ 100 ksi are required for plates up to 2-1/2" thick, inclusive. It is normally used as a structural steel in building construction, cranes, or other large machines supporting high loads. A514 Alloy (ASTM A514, ASTM A6) is a structural/mechanical alloy steel plate with great workability and weldability. Has good surface finish and forming qualities. Continuous hot-dip galvanizing is one of the main galvanizing methods used in the world. 0. The inner diameter of the steel pipe is determined by the outer diameter length of the drill bit of the sizing machine. Rake Angle: 11° -13°. 72: 0. Stainless Steel Machining. . A514 steel is a popular choice for plate manufacturing due to its high strength, durability, and excellent weldability and machinability. I has to drill a bunch of 7/16th holes and mill 4 3 inch long 11/16 slots in 3/8 steel described as "T1" with my 2hp BP. 1):Cutting conditions, Recommended Carbide Grades, Equivalent Material Standards, and Chemical Composition. Find the most up-to-date version of ASTM A514/A514M-05 at GlobalSpec. ASTM A514 alloy steel plate is known for its high yield strength, weldability, and toughness, even at low temperatures. 2 Orders for coarse round wire under this specification should include the following information: 4. AISI A514 Steel Machining. Industrial IoT Industrial MRO Industrial Processing Equipment Innovators & Makers Lab Equipment Light & Laser Machining & Metal Working Manufacturing Technology Material Handling & Logistics Materials Solutions Mechanical. 012". A514 has a minimum yield strength of 100ksi up to 2. Contact us today. Q high strength weldable steel plate is between 235-290, yield greater than 630MPa, tensile strength at 700MPa above. For example, when welding A514—a minimum 110-KSI tensile, low-alloy, quench-and-tempered steel—to A36 steel with a minimum 58-KSI tensile strength, choose a filler that more closely matches the A36 base metal, such as a filler metal with 70-KSI tensile, the lowest strength typically available on the market. A516 is the most popular pressure vessel. The source standarts should always be checked for the specific purpose for each material, in case of doubt. The monthly replenishment is about 12000 tons. Find the most up-to-date version of ASTM A514 at GlobalSpec. Feel free to get in touch. 101. Silicon killed in 100. A514 is a high-strength, low-alloy steel designed for heavy-duty applications, while A36 is a mild steel commonly used in general construction and fabrication projects. It is composed of (in weight percentage) 0. Mechanical Properties. When compared to standard 1112 steel, which has 100% machinability, the machinability of A572 Grade 45 steel is rated at 70%. Transport trailers and agricultural equipment. ASTM A514 Steel Plate. 1)Before m/cing Inspect complete assembly for dimensions as per drawing. This steel plate has a yield strength of 100,000 psi and offers optimal levels of corrosion resistance, toughness, impact-abrasion resistance, and. 500 = 2674 RPM 2674 x . This page describes the Alloy steel, ASTM A514 Type C steel plate, ASTM A514 Type C sheet, ASTM A514 Type C flat bar,. Both ASTM A36 carbon steel and ASTM A514 steel are iron alloys. in the heat treatment, A514 Grade H shall be heat treatment by the mill to conform to the tensile and. K11630) high-strength (tensile strength of 110,000 psi or more) steel plate (also known as T-1 steel) up to a maximum thickness of 2 inches. ASTM A514 steel plate has excellent weldability and can be welded with simple. 1020 steel, as with any other steel, is mostly formed of iron. ASTM A514 steel plate, also known as T-1 steel plate, is a popular grade of quenched and tempered (Q&T) steel that offers high strength, weldability and. 9% C in a prepared carbon-containing atmosphere, hold for about 4 hours (to reach a depth of 1. This makes it easy to bend, much like A-500 steel. He has to quote it and the job is large. The ArcelorMittal trademarked name is T-1. Each grade has different chemistry. ASTM A514 steel is an alloy steel formulated for primary forming into wrought products. It is primarily used as structural steel in construction. 5m-3m or as required Length: 1m-13m or as required Surface Finish: All Sizes Can be customziedThe search phrase you entered, a514, is common to 43 materials, by searching on the term(s) [ "a514"] in most common text fields, . First, the plate is heated to a high temperature – between 1,000 and 1,300 degrees – then rapidly cooled. For each property being compared, the top bar is ASTM A514 steel and the bottom bar is quenched and tempered SAE-AISI 4140. A514 steel is known for its higher tensile and yield strength compared to A36 steel. 96” x 480”. A 514 Grade A could be welded utilizing a. 5” to 6” thick. com. As a common steel plate in the steel market, ASTM A514 quenched and tempered steel, manganese steel plate has the following characteristics. AR-500 Plate is a quench and tempered high strength alloy steel which has superior abrasion resistance and toughness. A major aerospace manufacturer switched to Sandvik GC1025 carbide inserts to re-bore a massive forging of hardened Type 300M steel, 4340 modified. 1 recognizes this steel as one to be used in structural components in Clause 4 – Qualification. Machinability is the ease with which a metal can be cut permitting the removal of the material with a satisfactory finish at low cost. Machinability: 0. 002 tolerance and 5/8" tapped holes. Details. 1020, 1045, 8620, 4140, 4340. CNC Machining; Replies 1. 002 – . ASTM A513 Carbon Steel Permissible Variations in Dimensions (Wall Thickness) Permissible variations in wall thickness for A513-1 steel tubing are ±10% of the nominal wall. Therefore, the comprehensive mechanical properties of Q345 steel should be better than that of 16Mn steel, especially its low temperature properties. with good weldability and toughness. Imagine a cylindrical tank with capped ends - the cylinder is A572 and the caps are A514. 5 inches to 6. The best machining choice varies across the grades. ASTM A514. In addition, A514 steels are specified by military standards (ETL 18-11) for use as small-arms firing range baffles and deflector plates. For each property being compared, the top bar is ASTM A36 carbon steel and the bottom bar is ASTM A514 steel. ASTM a514 grades are usually used in earth moving equipment. 96” x 576”. . However, this type of steel has a greater tendency to harden and has poor welding performance. Plates > 2-1/2" and ≤ 6" in thickness have a minimum Yield Strength requirement of 90 ksi. Machinability of Stainless Steel ranges from free-cutting grades like 430F and 303, having a machinability of 75%, and up to challenging grades like 316, with a Machinability of 36%. 3% brings the best machinability rate. ASTM A514 is a specification for 100 kilopounds-per-square-inch-yield, low-alloy, quenched-and-tempered steel intended for structural applications and is typically known in the industry as USS (United States Steel) nomenclature T1®, regardless of the manufacturer. machining. A514 Steel. 00 diameterInsert: UHLD08T310R-M Grade: IN2005DOC: . This high-strength, quench and tempered alloy steel is perfect for heavy vehicle parts, construction and repairs. Disadvantages: Low alloy steel plate is killed. vxASTM A514 steel plate, also known as T-1 steel plate, is a popular grade of quenched and tempered (Q) steel that offers high strength, weldability and machinability. 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. Carbide tooling, rather than high-speed steel, should be used whenever possible. The breadth and depth of our products help solve the industry’s toughest machining challenges. The requirements of ASTM A514 hardness test: For ASTM A514 steel plates 3/8 in. Produced by a special calcium treatment and a controlled sulphur process, Clean-Cut steels contain sulfideinclusions which are. [1] A514 is primarily used as a structural steel for building construction. Order Total. Next: 1/6 inch thickness A573 grade 65 CS steel carbon plate. Each grade has separate. The following table shows AISI 4140 steel heat treatment, Rockwell hardness. 2. Details. Try to use A514 grade Q quenched and tempered steel high-quality alkaline covered electrode as much as possible, and don't use inferior electrode to save money. 25″. The ASTM A519 steel tube specification covers both hot-finished and cold-finished mechanical tubing in sizes up to 12-3/4” O. Speeds and Feeds. Alloy. ASTM A514 Grade E/A514 Gr. This steel plate has a high yield strength and good weldability. or as your request Width: 0. A high strength material with a yield strength over 100 ksi, QT-100 (ASTM A514) is used in a multitude of applications. Using the conventional welding practices, like SMAW, SAW, and GMAW, MIL-A-46100 armor plate can be welded. This high-strength, quench and tempered alloy steel is perfect for heavy vehicle parts, construction and repairs. Grade 50 contains more alloying elements than plain carbon steel and. Grades Stocked: A514, AR400, AR500, AR200, A656-80, A572-50, A36, A710; Armor Grades Stocked: Mil A 46100, Mil A 12560 Cl1, Omega Armor (NIJ & UL Level Standards). ASTM A514 steel plate is quenched and tempered carbon-alloy steel great for use in welded bridges and structures. A514 steel plate—also known as T1 steel—is. A514 steel plate is known for its toughness, weldability, and high yield strength. 690-895. Alloy Steel Your foremost provider of specialty products, services and solutions. . Alpharetta, Georgia 30004. A516 Grade 70 Steel Plate. 2-1250mm. Thread starter spock; Start date Jan 21, 2010; Replies 8 Views 10,351 S. Summary Rake Angle: 11° -13°. A514 steel plate—also known as T1 steel—is. . Materials with good machinability (free machining materials) require little power to cut, can be cut quickly, easily obtain a good finish, and do not cause significant wear on the tooling. 1020’s modulus of elasticity is 205 GPa and the shear modulus is 80GPa. There are 31 material properties with values for both materials. Stress Relieving is a heat treating process that consists of heating the steel to a temperature below the critical range to relieve the residual stresses resulting from hot rolling, welding, shearing, or gas cutting. 2290 855. AISI 1045 steel is characterized by good weldability, good machinability, and high strength and impact properties in either the normalized or hot-rolled condition. Thickness, width and length tolerances for A516, Grade 70 plates are in accordance with ASTM A20. –. Pipeline steel materials used in oil and gas projects require higher strength and toughness than low carbon steel, and have good weldability just the same as low carbon steel. This steel plate is suitable at low temperatures and is quenched and tempered for increased strength. Mechanical Properties. Learn more. A common carburizing method of AISI SAE 8620 steel is to heat up to 925 °C (1700 °F) at a potential of 0. 870 (1600) 302 HB. ISO K – CAST IRON. Tianjin warehouse mainly stores steel plates and steel pipes. 9310 ALLOY STEEL – AMS 6265 VAR – UNS93106 DATA SHEET GENERAL CHARACTERISTICS: 9310 VAR AMS 6265 is a Chromium-Nickel-Molybdenum Alloy used as a Carburizing Grade for Aircraft Parts. Like all types of steel, this alloy is highly influence resistant and scores mid-vary on the Mohs scale. Try to use A514 grade Q quenched and tempered steel high-quality alkaline covered electrode as much as possible, and don't use inferior electrode to save money. Silicon killed in 100. 4 in/min FPT = Feed Per ToothAfter extrusion, the A514 grade Q quenched and tempered steel tube shall be removed for sizing. 72. 72. Each grade has different chemistry. 100 to 130 (690 to 895) 90 (620) 16. 500 = 2674 RPM 2674 x . 012". Drilling, countersinking, counterboring, tapping, milling, and general machining can be done with conventional equipment and carbide tools. It has established cooperative relations with more than 2000. 28. A standard resulfurized and rephosphorized grade carbon steel and a free machining steel. It machines like other steels that are around 100K yield as has been noted above. 1020 also contains 0. Heat treated for enhanced hardness and strength, A514 alloy steel is suitable for structural applications and supporting heavy loads. Steel is the common name for a. ASTM A36 steel is one of the most widely used carbon structural steels, although the carbon content of A36 material is maximum 0. Because of this material’s high yield strength it is ideal for projects. Brinell Hardness: 240 to 250: 130 to 140: Elastic (Young's, Tensile) Modulus, GPa: 190: 190:The ASTM A514 specification is the Standard Specification for High-Yield-Strength, Quenched and Tempered Alloy Steel Plate, Suitable for Welding used in applications where Yield Strengths of ≥ 100 ksi are required for plates up to 2-1/2" thick, inclusive. 110000 - 130000 psi. All of our forgings meet ASTM, AMS. Air. For thicknesses over 2 inches, the flatness guarantee is a maximum of 6mm/m. ASTM A514 is the designation that comes to mind which includes the composition for T-1. It is a popular quenched and tempered grade that offers high strength, weldability and machinability. P. Elongation at Break, %. First, good toughness, stretching and crimping can be done well. For each property being compared, the top bar is ASTM A514 steel and the bottom bar is SAE-AISI 1018 steel. Because of this material’s high yield strength it is ideal for projects requiring a light weight steel without sacrificing durability or toughness. Mill the cutting edge with a cemented carbide milling cutter and polish it with a polishing machine. A514 grade E high strength steel,WTST 37-3 steel plate is a kind of carbon steel plate. 25 in) 12:ASTM A283 General purpose, low-cost structural quality plate. It is suggested that generic carbide tooling is used to. 4140 steel is annealed at 872°C which is equivalent to 1600°F. ASTM A514 is a low carbon quenched and tempered alloy steel that combines low-cost with high performance for structural use, high wear machining applications, cranes and other machinery, and more. Astm A514 Plate Suppliers recommend this as it is a low carbon quenched and tempered alloy steel. E grade bridge steel is suitable for low temperature and severe cold environment or bridge. Zr-0. When the customer orders WTST 37-3 steel plate from us, our factory should roll it in full accordance with SEW 087-2 specification, and the factory will issue the. These properties make A572 relatively simple to shape into different structures while also maintaining the ability to bear great stresses and loads. 2 When the steel is to be. Build a Quote for A514 Steel Plate. The seam has a full penetration weld. The use of water-soluble coolants and low speeds are recommended. Excellent for carburizing. Material 12L14 Steel Properties 12L14 material density is 7. 100XF steel plate has been developed for applications where increased strength-to-weight ratios are required. 5% is ideal. This grade steel has a min-yield strength of 100 ksi/690 MPa. General Info About MIL-A-46100. Sometimes, we find that custom stocking programs help our customers react faster to changes. The technical data of A514 steel is designed in standard ASTM A514/A514M-14. 4140 alloy steel plate has an. All the grades and dimensions are covered by Strenx ® guarantees for thickness, flatness and bending properties. It's used to fabricate a wide variety of machine parts. The Tensalloy ™ AR400 wear-resistant steel plate is a steel that provides greater impact strength than our other common heat treated alloys. ASTM A36 Higher mechanical properties than A283. A572 Steel Plate. , at the lowest cost. 30 mm / 0. STRUCTURAL QUALITY STEEL. Details. Land Angle: Positive. Almost exclusively used in the creation of DOM tubing. 1. A514 T1 steel plate provides a high yield strength of 100 ksi min. It has the characteristics of high-quality steel, such as strength, toughness, ductility, forming, welding and cutting, abrasion, high temperature, fatigue and so on. If 30CrMnSiA steel is used to make a tool, it is processed to the tool shape by rough machining. When compared with AR400 steel, AR500’s increased surface hardness allows it to outperform in certain high-abrasion applications. Steel A516 (17Mn4/ A515Gr. In addition, ASTM A572 Grade 50 is noted for its increased resistance to atmospheric corrosion. Description. The monthly replenishment is about 12000 tons. 200%) 690 MPa. Annealed 4140 Cr-Mo Steel ASTM A514 Alloy Steel. A514 Steel Plate aka T1 steel plate is a high strength steel plate designed for applications requiring optimal impact and abrasive resistance. Q heavy plate, Which is a large steel plate supplier mill at Unitedsteel Group. A514 Steel Plate. The A514 plate steels are a group of quenched and tempered alloys with attractive advantages and characteristics. A514 T-1 characteristics combine higher mechanical properties with superior weldability, good formability and impact strength / notch-toughness. 00 inch/variable RPM: 2674, SFM: 700,. Thickness. Q steel machinability ASTM A516 GR 70 plates shall adjust to the chemical necessities to below table 1, unless otherwise modified in accordance with S17 of Vacuum Carbon-Deoxidized Steel in A20/A20M. ASTM A514 steel is mainly used in places where high tensile strength and high yield are required, such as engineering vehicle lifting gears, large excavators, offshore platforms, etc. Q high yield Strength Quenched and tempered alloy steel plate suitable for the rack of construction machinery and jack up offshore drilling platform. Custom sizes available. We stock more than 1000 tons of JIS 3101 SS 540 steel every month. According to the charts, cutting speed of T1 is approximately 40% that of 1212, or 65 surface feet per minute. ASTM A514 steel equivalent materials are DIN QStE690TM, NFA E690D, BS 75F70, etc. T1 Steel Plate A514. ASTM A36 Steel. Also known as high-strength low-alloy (HSLA). A514 is a high strength low alloy (HSLA) material grade used in structural applications requiring superior strength. Unlike normalizing or annealing, stress relieving does not change the metal. 4340 Alloy Steel is a medium carbon. ASTM A514 steel plate mechanical property: ( A514 grade A, A514 grade B, A514 grade C, A514 grade E, A514 grade F, A514 grade H, A514 grade J) ASTM A514 steel plate can be cut with plasma, oxy-Acetylene, laser, and water jet, as well as with abrasive cut off saws. 5: 96 X 288: 20. 1. A514 Alloy (ASTM A514, ASTM A6) is a structural/mechanical alloy steel plate with great workability and weldability. Get a quote today!The type of steel: Overall hardness; Heat treatment; Alloying composition; The type of tooling: Material (high-speed steel, carbide, etc. Users can obtain high case hardness coupled with high core strength and toughness. Due to these properties, A514 is typically used in applications where wear resistance and the ability to withstand high impact are important. A572 High Strength Low Alloy steel varies with the "Grade". To achieve different degrees of strength, A514 alloy plate is quenched and tempered in oil or water. ASTM A514 structural steel,ASTM A514 steel is mainly used in places where high tensile strength and high yield are required, such as engineering vehicle lifting gears, large excavators, offshore platforms, etc. 002 tolerance and 5/8" tapped holes. Customers calling for Alloy A514 a lot of times are upset about dealing with fluctuations in their build schedules. A514 steel plate is quenched and tempered for increased strength, and is roughly three times stronger than plain carbon steel. This specification covers quenched and tempered alloy steel plates of. Table 1 below shows the other elements that are added to make 1020. ASTM A514 steel plate is a quenched and tempered alloy steel used in applications that require a particularly high yield strength. The ASTM A633 specification is the Standard Specification for Normalized High-Strength Low-Alloy Structural Steel Plates when superior notch toughness is needed at low temperatures. This type of steel is suitable for: Construction of heavy vehicle frames and support structures, Welded bridge structural components. Don't confuse Tungsten High Speed Steel 18-4-1 (T1) with ASTM A514 Constructional Alloy Steel Plate (also T1)A514 grade B steel material,Structural steel for bridges is mainly used to make riveted and bolted welded bridge steel structures such as highway bridges, railway bridges, sea-crossing bridges, overpasses, viaducts, and large mechanical bridge cranes. 6% manganese and 0.