Supply of iron bars DT3A board

Companies specializing in sales of pure iron is very soft metal, silver-white metallic luster, it can not make a sword, nor cast iron pot, plowshare. But pure iron after a certain amount of carbon, it becomes steel that we use in all aspects of the. Pure iron is a steel, its chemical composition is mainly iron content in 99.50% -99.90%, the carbon content of 0.04% or less, the other elements, the less the better. Because it is actually not a real pure iron, so called it A near-iron steel industrial iron. General industrial iron special soft texture, toughness particularly large, good electromagnetic properties. There are two common specifications, one is as deep drawing material may be stamped into a very complex shapes; the other is a magnetic material having a low sense of diamagnetic high magnetic widely used in electrical, electrical components, magnetic materials, amorphous articles, relays, sensors, automotive brakes, textile machinery, electric meter solenoid valve, etc. products. Higher than the melting point of iron in moist air difficult to rust than iron, in the cold concentrated sulfuric acid can be passivated. Classification: according to use is divided into: magnetic iron, raw iron, no hairline iron, iron and other high vacuum tightness. Iron grades: magnetic iron: DT4 (A, E, C) no hairline iron: DT8 (A, E, C) - Cape class, senior, super, super high vacuum tightness iron: DT9 material iron: YT0, YT01 Grade Description: magnetic iron based magnetic level class is divided into general level, advanced, super, super - such as DT4, DT4A, DT4E, DT4C were general level, advanced, super, super major domestic production Produced by providers and Specifications: TISCO: 220 * 1000 * 1550 mm slab on, φ6.5 ~ 20mm round plate, φ60 ~ 130 * 3000 ~ 6000mm round, six to 120 * 1000 * 2000 mm hot-rolled Plate, 0.5 ~ 2.5 * 900 ~ 1200 * Cmm cold-rolled coil, 1.5 to 6.0 * 1000 * 1300 mm cold-rolled sheet; Baosteel: DT4E sheet, coil Wuhan Iron and Steel: WDT 28 bar Other: Many small mills also produce iron material, but ingredients purity and stability are poor quality standard: TISCO: GB / T6983-1986, GB / T6984-1986, GB / T6985-1986, Q / TB 3044-2007 Baosteel : Q / BQB482-2009 performance: ◎ magnetic iron performance rating grades coercivity magnetic coercivity maximum permeability added aging general level DT4 ≤96 ≤9.6 ≥0.0075 advanced DT4A ≤72 ≤7.2 ≥0.0088 premium DT4E ≤ 48 ≤4.8 ≥0.0113 super DT4C ≤32 ≤4 ≥0.0151 magnetic flux density B, T ≥ B200 B300 B500 B1000 B2500 B5000 B10000 1.2 1.3 1.4 1.5 1.62 1.71 1.8 Note: B200, B300, B500 ...... B10000 represent the magnetic field strength of 200A / m, 300A / m, 500A / m ...... 10000A / m when the magnetic induction. ◎ raw iron components unit: ≤ no more than% Grade C Si Mn PS Al Ni Cr Cu Ti YT01 0.003 0.03 0.06 0.010 0.006 0.03 0.03 0.03 0.03 0.02 YT0 0.005 0.05 0.16 0.012 0.009 0.06 0.03 0.03 0.03 0.02 YT3 0.040 0.20 0.30 0.020 0.020 0.65 0.20 0.10 0.15 / According to the requirements and negotiated by both sides, to increase the inspection program in raw iron, oxygen, nitrogen, lead, antimony, bismuth, tin, arsenic, zinc and other elements, and the provisions of its scope and content of the test method . According to the requirements and the agreement by both parties, it is different from the ingredient list for specified elements in the product. Iron Application: magnetic iron: Electromagnetic products (electromagnetic clutch, electromagnetic relays, electromagnetic brake, electromagnetic valve, magnetic locks, electromagnetic locks, electromagnetic switches, high-voltage switch,), instrumentation, electrical machines, hot-dip galvanizing pot, magnetic sorting machine, iron and other raw materials Separators: NdFeB, neodymium nickel and cobalt, carbon steel, precision casting, high temperature alloys, amorphous and nanocrystalline iron-based alloy, super-hard materials, diamond powder, magnets, etc.