Our company Principle is " Quality first, Customer first". CHANGZHOU DLX ALLOY CO, LTD was established in 2002 and has got Iso9001 International Quality Management System Certificate and SGS Certificate. Our factory is professional in researching and producing special alloy material. From melting, drawing, heat treatment, finishing and testing .We offer nickel-based, copper-based, and iron-based alloys, including super alloy, welding materials, anti-corrosion alloy, precision alloy, FeCrAl alloy, NiCr alloy, CuNi alloy, thermocouple and Foam Metal etc, in the form of wire, strip, ribbon, bar, tube, plate
1, We're able to design and develop the product what our customers require and meet their requirements through providing the appropriate engineering drawings or samples. 2, We can provide the products within a week after payment. 3, Wecan provide sample of the products customer need. 4, We always insist on "Quality first, Customer first" as our business philosophy.
Question1: Are you a trading company or manufacturer? Answer: We're manufacturer. Question2: Could you help to design the product? Answer: Yes, we have excellent R&D team, OEM/ODM orders are all welcome. Question3: Could you supply samples? Answer: Yes, wecould supply samples according to your requirement. Question4: could we visit your factory? Answer: Sure, factory visit is warmly welcome.Applications include chemical processing, pollution control, oil and gas recovery, acid production, pickling operations, nuclear fuel reprocessing, and handling of radioactive wastes. Applications for alloy 825 are similar to those for INCOLOY alloy 020. Table 1 - Limiting Chemical Composition, % of INCOLOY alloy 825 Nickel ..........................................................................38.0-46.0 Iron...............................................................................22.0 min. Chromium....................................................................19.5-23.5 Molybdenum ...................................................................2.5-3.5 Copper ............................................................................1.5-3.0 Titanium...........................................................................0.6-1.2 Carbon........................................................................0.05 max. Manganese ...................................................................1.0 max. Sulfur ..........................................................................0.03 max. Silicon ...........................................................................0.5 max. Aluminum......................................................................0.2 max. Mechanical Properties INCOLOY alloy 825 has good mechanical properties from cryogenic temperatures to moderately high temperatures. Exposure to temperatures above about 1000°F (540°C) can result in microstructural changes (phase formation) that significantly lower ductility and impact strength. For that reason, the alloy is not normally used at temperatures where creep-rupture properties are design factors. Tensile properties at room temperature are listed in Table 5. As indicated, the alloy can be strengthened substantially by cold work. High-temperature tensile properties are shown in Figure 1. The tests were conducted on cold-drawn rod of 0.75-in. (19- mm) diameter annealed at 1725°F (940°C)/1 hr. Compressive yield strength of the alloy is similar to tensile yield strength. Tests on annealed rod of 1.0-in. (25-mm) diameter produced a compressive yield strength (0.2% offset) of 61,400 psi (423 MPa) compared with a tensile yield strength of 57,500 psi (396 MPa). Ultimate tensile strength of the material was 104,500 psi (720 MPa). INCOLOY alloy 825 has good impact strength at room temperature and retains its strength at cryogenic temperatures. Table 6 gives the results of Charpy keyhole tests on plate. INCOLOY alloy 825 (UNS N08825/W.Nr. 2.4858) is a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. The alloy’s chemical composition, given in Table 1, is designed to provide exceptional resistance to many corrosive environments. The nickel content is sufficient for resistance to chloride-ion stress-corrosion cracking. The nickel, in conjunction with the molybdenum and copper, also gives outstanding resistance to reducing environments such as those containing sulfuric and phosphoric acids. The molybdenum also aids resistance to pitting and crevice corrosion. The alloy’s chromium content confers resistance to a variety of oxidizing substances such as nitric acid, nitrates and oxidizing salt. The titanium addition serves, with an appropriate heat treatment, to stabilize the alloy against sensitization to intergranular corrosion. The resistance of INCOLOY alloy 825 to general and localized corrosion under diverse conditions gives the alloy broad usefulness.The hot-working range for INCOLOY alloy 825 is 1600 to 2150°F (870 to 1180°C). For optimum corrosion resistance, final hot working should be done at temperatures between 1600 and 1800°F (870 and 980°C). Cooling after hot working should be air cool or faster. Heavy sections may become sensitized during cooling from the hot-working temperature, and therefore be subject to intergranular corrosion in certain media. A stabilizing anneal (see above) restores resistance to corrosion. If material is to be welded or subjected to further thermal treatment and subsequently exposed to an environment that may cause intergranular corrosion, the stabilizing anneal should be performed regardless of cooling rate from the hot-working temperature. Cold-forming properties and practices are essentially the same for INCOLOY alloy 825 as for INCONEL alloy 600. Although work-hardening rate is somewhat less than for the common grades of austenitic stainless steels, it is still relatively high. Forming equipment should be well powered and strongly built to compensate for the increase in yield strength with plastic deformation. INCOLOY alloy 825 products are heat treated during manufacturing at the mill to develop the optimum combination of stabilization, corrosion resistance, mechanical properties, and formability. To maintain these properties during fabrication, subsequent anneals should be performed between 1700 to 1800°F (930 to 980°C) followed by rapid air cooling or water quenching. Heat treatment in the lower end of the range is acceptable for stabilization. However, annealing at temperatures in the higher end of this range may be preferred for softness and grain structure for forming and deep-drawing while maintaining corrosion resistance. Quenching is usually not necessary for parts of thin cross section (e.g., sheet, strip and wire), but may be desired to avoid sensitization in products of heavier cross section. General procedures for heating, forming, pickling, and finishing are found in the SMC bulletin “Fabricating”. Welding, brazing, and soldering techniques are discussed in “Joining”. 
