L415MB fluid delivery price of steel complete specifications L415MB Direct

Dongguan City-wide Metal Materials Co., Ltd. to provide you with a wealth of information and information on the complete fluid transfer L415MB steel specifications and so on. Complete L415MB fluid delivery specifications L415MB steel price direct cold heading steel cold heading steel materials forming steel, cold heading is the use of one or more impact load, are widely used in the production of screws, pins, nuts and other standard parts at room temperature. Cold Heading Technology can save raw materials, reduce costs, and improve the tensile strength of work by work hardening, improve performance, cold heading steel have its good cold upsetting performance and reduce impurities in steel S and P, etc., for steel surface quality demanding, often using high-quality carbon steel, carbon steel, if steel containing more than 0.25%, should be ball annealing heat treatment to improve the performance of cold heading steel. First, the mechanical performance requirements 1. Yield strength σs and foot deformation resistance as small as possible, it will give the unit deformation force is reduced accordingly to extend die life. 2. Cold deformation properties of steel is better, that material should have good ductility, low hardness, the product does not cause cracks in the larger degree of deformation. 3. Hardening steel sensitivity as low as possible, so that does not result in deformation during cold forging deformation force too. Second, the chemical composition of claim 1. Carbon (C) Carbon is the most important element of the impact of the steel cold plastic deformation. Carbon content, the higher the strength of steel, and lower ductility. Practice has proved that the carbon content of each increase of 0.1%, the yield strength σs about improving 27.4Mpa; tensile strength σb increase 58.8 ~ 78.4Mpa; and elongation δ is lower by 4.3%, lower section shrinkage ψ of 7.3%. Thus, the carbon content in steel cold plastic deformation properties of steel for the impact is significant. In actual production, cold heading, cold extrusion steel carbon content greater than 0.25% claim to be of steel before drawing ball annealing. For deformation of 65% to 80% of the cold heading pieces, without intermediate annealing is performed three upsetting deformation, the carbon content should not exceed 0.4%. 2. Manganese (Mn) manganese in smelting steel and iron in the role of (Mn + FeO → MnO + Fe), primarily for steel deoxidation added. Manganese in steel iron sulfide action (Mn + FeS → MnS + Fe), can reduce the harmful effects of sulfur on steel. Manganese sulfide formed can improve the steel machinability. Manganese makes steel tensile strength and yield strength σb σs increased, decreased plasticity, steel for cold plastic deformation is unfavorable. But the effect of manganese on the deforming force is only about 1/4 of carbon. Therefore, in addition to special requirements, manganese content of carbon steel, should not exceed 0.9%. 3. Silicon (Si) Silicon is the residue of steel deoxidizer during smelting. When the silicon content in steel increased by 0.1%, the tensile strength σb improve 13.7Mpa. Experience has shown that when the silicon content more than 0.17% and a higher carbon content, has a great impact on the plasticity of steel is reduced. Appropriate to increase the silicon content in the steel, mechanical properties of steel, especially advantageous elastic limit, but also increase the corrosion resistance of steel. However, when the silicon steel exceeds 0.15%, the steel sharp form non-metallic inclusions. Even high silicon steel annealing, it will not soften, reduce cold plastic deformation properties of steel. Therefore, in addition to product performance requirements of high strength, cold heading steel always try to reduce the silicon content requirements. 4. Sulfur (S) Sulfur is harmful impurities. Steel sulfur would crystalline particles of metal when cold heading separated from each other to cause cracks, the presence of sulfur also cause brittle and rusted steel to produce heat, therefore, it should be less than 0.055% sulfur content. Stainless steel should be less than 0.04%, due to the sulfur, phosphorus and manganese can improve the cutting performance, the sulfur content of the nut cold heading steel can be raised to 0.08 to 0.12%, in favor of tapping. But generally not designed for the high-sulfur steel supply well tapping nut and smelting. 5. Phosphorus (P) P solid capacity strengthening and hardening effect is extremely strong, serious segregation in the steel, increased cold brittleness of steel, the steel easily eroded by acid, phosphorus would worsen steel cold plastic deformation, in When drawing will wire breakage, the product cracking cold heading, phosphorus content in steel should be controlled 0.045% or less. 6. Other alloying elements Carbon other alloying elements such as chromium (Cr), molybdenum (Mo), Nickel (Ni), etc., are present as impurities, far less impact on the steel as large carbon content is extremely small. Use cold heading process method for manufacturing fasteners, connectors (such as bolts, nuts, screws, rivets, etc.) screw steel cold heading steel with 2 steel called cold heading steel, commonly known as riveting. Commonly used type alloy quenched, tempering type alloy structural steel, low-carbon low-alloy high strength steel, ferrite - martensite dual-phase steel. Cold heading is at room temperature, use of Metal Forming. Manufacturing fasteners by cold heading process, not only high efficiency, good quality, and the use of materials, low cost. But cold heading process for high quality raw materials. Cold heading performance is one of the important properties of cold heading steel. Cold heading steel should have the main performance, with good cold formability; for cold heading steel deformation as small as possible to have a high resistance and possible deformation. To this end, the general requirements for cold heading steel yield ratio of 0.5 to 0.65, reduction of greater than 50%. In addition, to avoid surface cracking during cold forging, steel surface quality requirements, while the surface decarbonization of steel as small as possible. Standard steel top test shall be carried out cold. It requires samples before and after the cold upsetting height ratio cold upsetting senior; 1/4; and higher; 1/3; ordinary level; 1/2. General standard 1/2. Cold heading steel cold forming due to good performance in the machining industry cold drawn cold instead of hot-rolled sheet cutting machining, this process has the advantage in saving a lot of work at the same time, the metal consumption can be reduced by 10% to 30%, and the product high dimensional accuracy, surface finish, high productivity, is the rise in recent years more advanced machining processes. Shenzhen, State Metal Products Co., Ltd. Flextronics in 1992, mainly engaged in mold steel import and export trade. And has been at the forefront of the industry, in 1993, established a factory in China to produce embryos die and mold standard parts, and gradually set up a number of the Ministry of Trade to form a more perfect production and sales network. Press production and management company is divided into: the steel unit, the embryos die, machining department, parts manufacturing department and sales department and other five sectors. In an increasingly competitive market, we take small profits way to rationalize the price, quality management professionals, and 24-hour customer service, create first-class quality. The company specializes in Japan (Hitachi), Germany (Sa Site), Sweden (Assab), Austria (Bailu), and other high-quality mold steel imports to Europe and countries in stainless steel, and equipped with professional sawing machinery for processing, to thoughtful timely services to any professional needs of customers, the company to keep separate milling and heat treatment processing equipment and valet services, the company has Zhejiang, Jiangsu, Fujian, Shandong, Anhui, Jiangxi, Dalian, Guangdong has a certain customer base opening, courtesy new and old customers for their support, so adorable long to enter the international market, more sincere "Grateful Heart" and "dedicated service" more attentively and thank you for advanced care. In terms of delivery, quality, or in terms of price, service, and we will maintain a dominant position in the peer, truly customer satisfaction. With our size, our professional, your company can provide services in product development, mold making aspect will help your company's profit is. Please call to contact! Standard in the library of steel: Japan (Datong): PXZ, PX4, PX5, S-STAR, G-STAR, YK30, DC11, DC53, DHA1, DH21, DH31-S, DH2F, DH42, GFA, MH51, MH55, MH8 , SGT, GOA, DEX20, DEX40, DEX60, PD613, SUS420, S50C, H3100 PX88, QCM8, MH85 Japan (Hitachi): HPM1, HPM2, HPM7, HPM38, HPM50, HPM75, HPM77, CENA1, DAC, SKD4, SKD5, SKD7, SKD8, SKT4, SK3, SK4, SK5, SKS3, SKD11, YEM, YEM-K, DAC45, SKD61, SKD62, FDAC, DAC10, DAC55, SLD, SLD8, SLD10, ARK1, SGT, YXM1, YXM4, YXR3, YXR33, SKH-9, SKH-51, SKH-55, SKH-57, SKH-59, HAP10, HAP40, SUS420J2, HAP72, NP8, NP9, YSS, YHD28, YHD3 Sweden (Assab): K100, DF- 2, XW-10, XW-5, XW-41,618,618H, 718,718H, S136, S136H, 8402,8407,8416, QRO-90, HSP-41, ASP23, ASP30, ASP60, VANADIS-4, VANADIS-10, HOTVAR, 168S, 635, ASSAB88, ELMAX Germany (Sa Site): P20,2311,2738,2316,2083,2767,4125,2344,2367, 2379,2842,2363,2436,2510,3343, 3207, TSP4,6582,7225,1293,1285, YE2311, YE2738, YE2083, YE2316, YE2344 Austria (100 Green) M202, M238, M300, M310, M340, M330, W302, W303, W321, K100, K110, K340, K460, S390PM, S590PM, S690PM, S790PM, S500, S705 United States (Fen cola): 420,6061,7075, D2, D3, H11, H13, Ol, O2, M2, M4, L6, M35, M42, A2, 6F7 , T42,4340,4140 US stainless steel: 405,409,429,430,430F, 434,436,439,439LL, 442,443,444,446, 201,201L, T201LN, 202,203EZ, 205,216,216L , 301,302,302B, 303,303SE, 303CU, 303MA, 304,304L, 304H, 304CU, 304LN, 304N, 304S, 305,305L, 306,308,308L, 309,309S, 310,310S, 314,315 , 316,316F, 316H, 316L, 316N, 317,317L, 321,332,334,347,347H, 348,348H, 381,384,385,662,660,403,410,410S, 414,416,418 , 420,420F, 422,431,440A, 440B, 440C, 440F, 501,501A, 501B, 502,503,504,632,630,635,631,634 like.