Chemical composition of skt4 steel :
C Si Mn Cr Ni Mo P S
0.50-0.60Â?¤0.40 0.50-0.80 0.50-0.80 1.40-1.80 0.15-0.30 Â?¤0.030 Â?¤0.030
Size:
Round
Diameter Length
50mm-500mm 2000mm-5800mm
Steel plate
Thickness Width Length
20-400mm 80-1000mm2000mm-5800mm
Pre-hot treatment:
1.Annealing after forging:heat to 760-780â°c, keep 4-6h, furnace cold below 500â°c out and air cooling , hardness after annealing is 197-241hbs,
2.Isothermal after forging:heat to 850-870â°c, keep 4-6h, isothermal temperature680â°c, keep 4-6h, furnace cold below 500â°c
Out and air cooling , hardness after forging is 197-241hbs.
3.Forging die renovation annealing:heat to 710-730â°c, keep 4-6h, furnace cool below 500â°c, out and air cooling, hardness
After annealing is 197-241hbs.
Characteristic
1.Good strength and high abrasion resistance
2.Good quenching
Dongguan songshun mould steel co., ltd. Is located in changan town, dongguan city, china. After 10 years' development,
Now we have the capacity to provide complete services from manufacturing and marketing to distributing. The main grades
Of mould steel, tool steel and special steel which we market are listed as follows:
Supplier: Aluminium ( ingots, t bars, sows, rods), copper (cathodes, cakes, billets, ingots, rods), lead (ingots), nickel (cathodes both cut and uncut briquettes, pellets, discs, etc.), tin (ingots, etc.), zinc (ingots both regular size and jumbos), steel billets (all types including crc, hrc, hdgc, plates, sheets), concentrates and ores for above items including bauxite, manganese, clinker and iron ores etc), scraps of above items including hms 1&2 and steel scraps
Buyer: Aluminium ( ingots, t bars, sows, rods), copper (cathodes, cakes, billets, ingots, rods), lead (ingots), nickel (cathodes both cut and uncut briquettes, pellets, discs, etc.), tin (ingots, etc.), zinc (ingots both regular size and jumbos), steel billets (all types including crc, hrc, hdgc, plates, sheets), concentrates and ores for above items including bauxite, manganese, clinker and iron ores etc), scraps of above items including hms 1&2 and steel scraps
Electro galvanized wire BWG20 , wire diameter: 0.93-0.95 mm.
We offer a wide plethora of Zinc in many forms including LME registered and non registered Special High Grade Ingots and Jumbos, cathodes, dust, foil, granules, powder, pieces, anodize activated powder, shot, and a mossy form. Zinc is a bluish-white, lustrous metal. It is brittle at ambient temperatures but is malleable at 100 to 150°C. It is a reasonable conductor of electricity, and burns in air at high red heat with evolution of white clouds of the oxide. Plating thin layers of zinc on to iron or steel is known as galvanizing and helps to protect the iron from corrosion.
We are able to supply Tin in many forms including LME registered and non registered, ingots, slabs, bars, foil, granules, powder, anodized activated powder, shot, wire, sticks, ingots, and “mossy tin”. Tin is a silvery-white metal, is malleable, somewhat ductile, and has a highly crystalline structure. The element has two colours, with a cubic structure which changes at allotropic forms. On warming it is grey, the ordinary form of the metal. When Tin is cooled below 13.2°C, it changes slowly from white to grey or tetragonal structure. This change is affected by impurities such as Aluminium and Zinc, and can be prevented by small additions of Antimony or Bismuth.
We put forward a high quality of assortment of Nickel which is available in many forms including LME registered and non registered cathodes, cut cathodes, briquettes, pellets, disks, shots, granules, foil, powder, flakes, sheet, wire, mesh, spheres, “evaporation slugs”, and rods. Nickel is a silvery white metal that takes on a high polish. It is hard, malleable, ductile, somewhat ferromagnetic, and a fair conductor of heat and electricity
We are engaged in making Lead available in several forms including LME registered and non registered 99.97% and 99.99% as well as secondary ingots, foil, granules, powder, rod, shot, sheet, and wire. Lead is a bluish-white lustrous metal. It is very soft, highly malleable, ductile, and a relatively poor conductor of electricity. It is very resistant to corrosion but tarnishes upon exposure to air. Alloys include pewter and solder.
We hold immense expertise in making available Copper in many forms including LME registered and non registered cathodes, billets, rods, cakes, bars, foil, sheet, granules, plates, powder, shot, turnings, wire, insulated wire, mesh and “evaporation slugs”. Copper is one of the most important metals. Copper is reddish with a bright metallic lustre. It is malleable, ductile, and a good conductor of heat and electricity (second only to silver in electrical conductivity). Its alloys, brass and bronze, are very important. Monel and gun metals also contain copper. The most important compounds are the oxide and the sulphate, (blue vitriol
The Incinerated scrap or E46, is the by-product derived from the reprocessing of incinerated domestic waste. After the combustion process, the furnace output (IBA Incinerator bottom ash) is firstly washed, magnetically separated and screened to separate any no ferrous material. At a visual inspection, the material is fragmentized, with iron and steel parts, resulting partly cut or in shredded form. The stock appears heterogeneous and contains all kind of cut or dismantled steel parts such as sheets, bars, frames, wires, bolts and other iron/steel household residues. The incinerated scrap is eventually oxidized, due to the thermal and cooling treatments, that the material has been submitted to. The burnt scrap also contains minor slag parts, ash and iron oxide, due to the recovery process. Such components are inherent and adhere to the scrap surface. The total impurities, can be sorted, but not fully removed. The consignment does not contain any type of arms, ammunition, mines, shells, cartridges, radioactive contaminated, or any other explosive material in any form either used or otherwise. The collected stock, is stored in open air, on cemented flooring. It can be loaded loose in 20â?? heavy duty container. Please feel free to contact us for further details.
We have a wide variety stock of rebar, available dimensions from 8 mm to 32 mm,grades 60,40 ASTM A615,and BS4449, lengths 4,5,6,9,and 12 meters,plain,and deformed bars. Material SD390/490/400,B500B/GR460B,HRB400/500,ASTM A615 GR40/60 Standard BS4449,JIS,ASTM/A615 Length 6m,12m Application Widely used in construction industry.
We are supplier of Reinforcement Bars. can supply REBARS as per below: -Size: 6mm to 50 mm -Length: 6 meters up to 16 meters -Packing: Once folded bundles available. hese corrugated steel bars are used as tension devices in the construction of concrete slabs and walls, as well as decorative/ornamental grille work. When used in concrete constructions, these help to strengthen and hold concrete when it is compressed, and come in a wide variety of sizes to fit various building construction needs. At ARC. AVAILABLE IN 3/8 (10mm), 5/8 (16mm), (20mm), (12mm), 1 (25mm) and 1 (32mm)