Various specifications of materials:
Bar specification: 10mm-300mm, length 2m to 6m; Wire Specifications: Straight Bar or Disc Round: 55-25；Plate Strip Specifications: Foil: 0Below 2mm, sheet: 02-4.0mm, medium plate: 4-20mm, thick plate: 20-60mm, extra thick plate: 60mm or more; Pipes and special needs can be customized by phone.
Material No.: XM-19 Standard: GBT Chemical Composition: Carbon C: 006 Silicon SI: 075 Manganese mn: 400-6.00P: 004 sulfur s: 003 Cr: 205 - 23.5 Ni: 11 - 135 molybdenum (mo): 15-3.0 nitrogen n: 02-0.4 Ni NB 01-0.3 Vanadium v 01-0.3
Brief comment on the main chemical composition: nickel is one of the main components, which can improve the strength and toughness of steel, and improve hardenability When the content is high, it can change some physical properties of steel and alloy, and improve the corrosion resistance of steel Chromium is also one of the main components, which can improve the hardenability and performance of steel, and can improve the corrosion resistance and oxidation resistance of steel As one of the auxiliary alloys, copper's prominent role is to improve the atmospheric corrosion resistance of ordinary low-alloy steel, especially when used with phosphorus. The Monel system is essentially a nickel-copper alloy. As one of the auxiliary alloys, molybdenum can significantly improve the hardenability and thermal strength of steel, prevent tempering brittleness, and improve remanence and coercivity.
Heat treatment methods and characteristics: solution strengthening is an important form of metal strengthening, which improves the strength and hardness of metals through the formation of solid solutions. When the solute content is appropriate, the strength and hardness of the material can be improved, and the plasticity and toughness are not significantly reduced, which is its characteristic. Aging enhancement is divided into artificial aging and natural aging. Natural aging strengthening is to strengthen the alloy during the placement process at room temperature; Artificial aging strengthening is to strengthen the alloy during the low-temperature heating process. Both are based on the premise of solution strengthening, and both are aimed at improving the strength of the alloy. Precipitation strengthening is premised on aging strengthening, and the purpose is to strengthen the alloy. Cobalt, tungsten, molybdenum and other elements are added to make the alloy obtain a high yield strength. Grain boundary strengthening occurs because the grain boundaries of the alloy are the weak link at high temperatures, and the addition of trace amounts of boron, zirconium and rare earth elements can improve the grain boundary strength. Annealing: The annealed state is the basic state of the furnace. The essence is to convert high-speed steel from austenite to pearlite. The function is to reduce the surface hardness of high-speed steel and improve plasticity, so as to facilitate cold deformation processing such as cutting; Homogenize the composition of the steel, improve the properties and prepare for further heat treatment; Stress relief to prevent deformation or cracking.
Four major properties of materials: 1. Mechanical properties: strength, hardness, plasticity, fatigue, impact toughness 2, chemical properties: corrosion resistance, high temperature oxidation 3, physical properties: density, melting point, thermal expansion, magnetism, conductivity 4, process properties: cutting performance, malleability, castability, weldability.
Material delivery status: 1. The bar is in a forging state, black leather state, polished state or car light state**; 2. Round cakes and ring blanks are forged**; 3. The ring is in a solid solution state**; 4. After the plate is solid-solution, alkali pickling, straightening and trimming; Strip is delivered by cold rolling, solution and descaling; The wire is delivered in solution pickled disc or straight strip shape, solution straight strip fine polished condition. Plate and strip surface: glossy surface, 2B surface, BA (6K) mirror surface, 8K mirror surface, brushed surface, frosted surface Fine plate surface: bright surface, matte surface, matte surface, mirror, can also be plated with other light colors according to customer requirements.
Applications: Widely used in aerospace, power and energy, oil and gas, chemical processing, medical engineering, shipbuilding and transportation, machinery manufacturing, electronic technology, environmental protection and other fields.