Specifications
Large stock
Competitive price
Good quality
1, grade:cold work mould steel(d2/din1.2379/cr12mov1).
2, specification:dimension:20-500mm*50-1200mm.
3, chemical composition:
C=1.40~1.60, mn=0.30~0.50, si=0.30-0.50, s 0.025, cr=11.0~13.0, mo=0.70~1.20, v 0.08
4, annealed hardness:hbs=207-255
5, application:used for various high precision, long-life cold work mould and tool, like:punching mould could squeezing mould.
6.Payment terms:30% t/t deposit in advance
Unpacking or customized packing
FORGING:Heating for forging must be done slowly and uniformly. Soak through at F and reheat as often as necessary, stopping work when the temperature drops below 1700 After forging, cool slowly in lime, mica, dry ashes or furnace. D2 should always be annealed after forging. ANNEALING: Heat slowly to 1550 , hold until entire mass is heated through, and cool slowly in the furnace (40 F per hour) to about 1000 , after which cooling rate may be increased. Suitable precautions must be taken to prevent excessive carburization or decarburization. STRESS RELIEVING: When desirable to relieve the strains of machining, heat slowly to -1250& , allow to equalize, and then cool in still air (Strain Relieving). PREHEAT PRIOR TO HARDENING: Preheat slowly to 1350 and hold at this temperature until material is uniformly heated. HARDENING:After thorough preheating, heat to . Hold the work piece at the hardening temperature until it is completely and uniformly heated. QUENCHING: D2 steel is an air hardening steel and will develop hardness on cooling in still air. To avoid scaling and prevent decarburization of the work piece surface, controlled atmosphere or vacuum furnaces are recommended. If these furnaces are not available, pack hardening, salt baths or wrapping the piece in stainless steel foil will provide some degree of surface protection in the hardening process. Parts should be allowed to cool to 150F, or to where they can be held in the bare hand, and then temper immediately. TEMPERING: The tempering temperature may be varied according to the desired hardness. If maximum hardness is desired, tempering should be in the range , but if a lower hardness is acceptable, tempering at F will give the optimum combination of hardness and toughness. standard AISI, ASTM, BS, DIN, GB, JIS Size 5-1800mm weight and dimensions according to customer
Material: high carbon spring steel, spring steel, stainless steel, alloy steel Compression Spring, Extension Spring : Wire Diameter: 0.2-40.0mm Torsion spring wire diameter :0.2-35mm Surface Finish: black , Zinc, Nickel, silver, golden, tin, powder coating, shot pin Applications: Automotive, medical device, agricultural machinery ,electronics, toy, electric power distribution. Extension spring hook include Germany hook, British hook, Side hook We can customize special design of springs based on your requirement.
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Services: Trading, recycling
Buyer: Metal products, recycling machine, waste materials, agricultural products
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Services: Manufacturing & sourcing agents
We are glad to propose 500 MT of stain less steel mill scale. Mill scale is formed on the outer surfaces during by the hot rolling lamination of stainless-steel products. At a visual inspection the material is a hard brittle sand and is mainly composed of iron oxides, mostly ferric, and is bluish black in colour, but it also contains considerable alloying elements such as chromium and nickel. The recovery ratio after melting in furnace for the most valuable alloy elements is: - Ni: 3.5 - 4.5% - Cr: 6-8% From the chemical and physical analysis performed on the scrap, and according to the European environmental rules, the material has been classified as a special non dangerous waste, listed in green list. In particular the mill scale can be classified as follows: Waste code: 10 02 10 The material is stored on cemented flooring, and it can be loaded loose in tipper trucks or containers. Chemical analysis of the material is available on request.
Supplier: Metals and minerals, steel products and agricultural products
1 steel tubes/pipes (ssaw, lsaw, erw and seamless steel pipes)
2] galvanized steel coils
3] galvanized steel sheets
4] pre painted galvanized steel sheets/coils
5] corrugated steel sheets
6] deformed steel bars / re inforcing steel bars
7] wire rods
8] wire nails
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12] flat / round / square bars
13] pipes / fittings / flange
14} steel billets
15 agro products rices, pulses, sesame seeds, peanuts
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Buyer: Metals and minerals and agri commodities