Minerals & Metals

What is AISI 4140 Steel? AISI 4140 alloy steel round bar sheet plate belongs to medium hardenability steel.AISI 4140 steel has high fatigue strength and low notch sensitivity. Low- temperature impact toughness is also very high, no obvious temper brittleness. AISI 4140 steel round bar is mainly used after quenching and tempering state. it is used to manufacture high-strength parts under impact loads and the fittings with large cross-sections and other stressed members. Such as the horizontal eccentric shaft of the horizontal forging machine, the crankshaft of the forging press, and etc. Its equivalent grade is JIS SCM440 and DIN 1.7225. The properties and composition of 4140 steel round bar sheet plate as below. AVAILABLE SIZE: Round bar: Diameter(mm) Max 800mm; Length(mm) Max 12000mm. Plate: Thickness(mm) Max 800mm; Width(mm) Max 2300mm; Length(mm) Max 12000mm. Condition: Cold rolled(drawn)≤50mm, Hot rolled≤12-250mm, Hot forged≥50mm. AISI 4140/DIN 1.7225 Introduction: AISI 4140 alloy steel is chromium, molybdenum, manganese containing low alloy steel. It has high fatigue strength, abrasion and impact resistance, toughness, and torsional strength. Fabrication and Heat Treatment: 1. Forging Preheat the steel carefully, then raise the temperature to 1150-1200°C for forging. Do not forge below 850°C. 2. Annealing Heat the AISI 4140 slowly to 800-850°C and allow enough time for the steel to be thoroughly heated. Cool slowly in the furnace to 480°C followed by air cooling. 3. Stress Relieving When parts are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficial prior to hardening. 4. Hardening AISI 4140 steel is usually supplied ready heat treated to 18-22HRC. If further heat treatment is required annealed AISI 4140 should be heated slowly to 840- 875°C and after adequate soaking at this temperature quench in oil. Temper as soon as the tools reach room temperature. 5. Tempering Heat the AISI 4140 carefully to a suitable temperature selected by reference to a tempering chart or table (usually between 550-700°C, soak at the temperature for 2 hours per 25mm of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value. 6. Surface Treatment Plate: Origin Black, Orign cold rolled bright, Machined, Grinded Bar: Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded Songshun specialized in Special Steel for almost 20 years. We can supply mold steel, high speed steel, alloy steel, free cutting steel and etc.Welcome your contact 24 hours a day!!! E-mail:jacklu@songshunsteel.com Skype , /Whatsapp/Wechat:+86-18269260283 Songshun Tiktok:mikizhuo Songshun Facebook:Songshun Steel Songshun YouTube:MiKi Zhuo Songshun Company Website:https://steelpurchase.com/ http://www.songshunsteel.com/ songshunsteel , 41404340

Minimum Order: 1 bags

China tin wire Product: Tin Wire Product composition: Sn99.95 Product diameter: 1.0mm (wire diameter can be customized 0.4mm~3.0mm) Product weight: 1000g (weight can be customized) Working temperature: 350-480 ℃ Product packaging: 10 rolls/box There are many specifications of lead-free tin wire, and lead-free silver- containing tin wire is one of them. Some silver will be added during the processing of lead-free silver-containing tin wire. The main function of silver is to enhance conductivity. The role of silver is to enhance its electrical conductivity. Although the main component of lead-free tin wire is tin, there are also other components of metal. Tin wire is mainly divided into lead tin wire and lead-free tin wire. With the development of social economy, more and more electronic processing factories choose lead-free tin wire. Lead-free tin wire meets the ROHS standard proposed by the European Union's environmental protection requirements. Solder is made of tin-copper, tin-silver-copper and other alloys. There is also lead-free tin wire with silver added in order to increase the gloss, the brightness is better, it has good wettability, electrical conductivity, thermal conductivity, and it is easy to tin. All environmentally friendly products in our factory have ROHS certificates, and environmental testing reports and factory reports can be attached to the factory to ensure product quality.We can provide customized products in different purities and sizes to meet different needs. https://www.star-sn.com/product/china_ti , n_wire

Minimum Order: 1 bags

The twisted mesh is also called the hexagonal mesh, also known as the soft edge mesh. The twisted mesh is a wire mesh made of angular mesh (hexagonal) woven by metal wires. The diameter of the metal wire used varies according to the size of the hexagon. Chinese name: twist flower net Foreign name: hexagonal wire netting Another name: soft edge mesh Weaving method: Positive twist, positive and negative twist Material: Metal wire PVC wire Wire Mesh Characteristic: (1) Easy to use, just put the mesh on the wall or building cement to use (2) The construction is simple and does not require special technology (3) Strong ability to resist natural damage, corrosion resistance and harsh weather (4) It can withstand a wide range of deformation without collapsing. For fixed thermal insulation (5) Excellent process foundation ensures the uniformity of coating thickness and stronger corrosion resistance (6) Save transportation costs: it can be shrunk into small rolls and wrapped in moisture-proof paper packaging, taking up little space (7) The heavy-duty twist net is made of high-quality low-carbon steel wire galvanized and large wire. The tensile strength of the steel wire is not less than 38kg/m2, and the diameter of the steel wire can reach 2.0mm-3.2mm. Zinc protection, the thickness of the galvanized protective layer can be made according to customer requirements, and the maximum amount of galvanized can reach 300g/m2.

Dense Wire Description Small coiled wire, small coiled iron wire Small coiled wire densely arranged wire Finely arranged wire Name: Gardening paint wire, garden craft wire, wooden stick wire, small coil wire, small coil wire Name: gardening paint wire, garden craft wire, wooden stick wire, small coil wire, small coil wire Features: The inner iron core is not easy to peel off paint, flame retardant, beautiful, flat folded 180 degrees, no paint peeling, no fading and environmental protection. Product Specifications: 0.3mm-4mm Product color: grass green, dark green, white, blue, red, etc. Packing: plastic bag, reel, burlap bag, small wooden stick, small box, carton, etc. Uses: used in food packaging bags, refrigerated fresh-keeping bags, garbage bags and other packaging bags, and also used in the production of high-quality gifts and handicrafts. Wire bundles, etc.

Plunged wire: Plunged wire can be called plied binding wire, Twisted Wire, which is made of high-quality environmentally friendly low-carbon steel wire after being drawn and annealed by advanced and rigorous equipment, and then integrated and twisted by professional processing machines. The ply strands are mainly divided into 2 strands, 3 strands, 4 strands, 5 strands, 6 strands, 7 strands, 9 strands, and 11 strands. Features of plied wire: It has the characteristics of low price, good toughness, corrosion resistance, not easy to break, easy to use, high tensile strength, etc. It has become one of the most ideal binding wires for people. It is mainly divided into galvanized iron wire and twisted. Advantages of our products: We have superb technology and advanced equipments and are specialized in the production and development of various plied yarns. Due to the careful selection of raw materials and the production line of products, the quality of our products is far ahead in the industry. The tensile strength plating can reach 300-650N/M2, and the plate weight can be from 1KG to 1000KG. Big market. The surface is smooth, soft and not loose strands is a big advantage of our products.

Process: Roll the hot metal billet into a 6.5mm thick steel bar, that is, a wire rod, and then put it into the wire drawing device to draw wires of different diameters, and gradually reduce the diameter of the wire drawing disc for cooling, annealing, and coating. And other processing technology into a variety of different specifications of wire. It contains components: iron, cobalt, nickel, copper, carbon, zinc, and other elements.  Annealed iron wire has good elasticity and flexibility, and its softness and hardness can be controlled during the annealing process. The wire number is mainly 5#-38# (silk warp 0.17-4.5mm). Characteristics: The weaving of annealed wire barbed wire has methods such as first weaving and then plating, first plating and then weaving, etc. The treated barbed wire or steel wire mesh has excellent anti-corrosion and anti- oxidation characteristics, which can be used for construction, petroleum, chemical industry, breeding, and garden protection. , food processing and other occupations reinforcement, protection and insulation. It is softer and more flexible than ordinary black iron wire, with uniform softness and consistent color. Uses: Mainly used in construction, mining, chemical industry, welded wire mesh, welding hanger, reprocessing, etc. After annealing, the iron wire becomes soft and the flexibility increases, and the effect of making building wire and binding steel bars is more effective.

The galvanizing process is to coat the ordinary iron wire we see daily with a layer of zinc to prolong the service life of the iron wire. Iron is very easy to corrode and rust. Zinc is a metal that is not easy to rust. If zinc is plated on the surface of iron through special equipment and processes, it can resist corrosion and is not easy to rust. The stability of zinc Higher than iron, it is not easy to rust in a humid environment. Electro Galvanized Coil Wire is divided into two categories: hot-dip and cold-dip due to different production processes. Iron wire is easy to rust in air, water or soil, or even completely lost. The annual loss due to corrosion accounts for about 1/10 of the entire steel production. In order to make the surface of the fastener have a certain special function and at the same time give its surface a decorative appearance, it is generally treated by electro-galvanized wire. Application range of electro- galvanized wire. The fields involved in electro-galvanized wire are more and more extensive, and the application of fastener products has spread to machinery manufacturing, electronics, precision instruments, chemical industry, transportation, aerospace, etc. It is of great significance in the national economy.

Aluminum-zinc alloy casting Category:Aluminum alloy casting Aluminum-zinc alloy casting has good processing performance, and there are common grades such as AC1A and ZA43. The mechanical properties of aluminum-zinc alloy are similar to brass, and it has good machining properties and can be processed into small metal parts. Common grades are AC1A, ZA43, etc., and the surface treatment effect is good, can adapt to a variety of electroplating processes, and has good corrosion resistance. The mechanical properties of aluminum-zinc alloy are similar to brass, and it has good machining properties and can be processed into small metal parts. Common grades are AC1A, ZA43, etc., and the surface treatment effect is good, can adapt to a variety of electroplating processes, and has good corrosion resistance. The aluminum-zinc alloy alloy has excellent processing performance, the overall comprehensive performance is close to that of lead brass, the surface treatment effect is good, and it has good electrical conductivity. It can be widely used in electronic and electrical industries. The lower one is added, and it is an environmentally friendly material, which can meet most environmental protection requirements. https://www.foundryseiko.com

Minimum Order: 1000

Tin ingot supplier Product ingredients: Sn99.99 Working temperature: 265-275℃ Packing: net weight 25±1.5kg per ingot, bundled with galvanized steel strips, 40 ingots per bundle, net weight 1000±30kg Specifications: 400cmX100cmX100cm Origin: China Tin Ingot Application： (1) For the manufacture of tin-plated iron (tinplate); (2) Used to make brazing solder; (3) The electronic industry is used for tin plating on the surface of wires and electronic components and lead parts (4) For the manufacture of tin bronze. Tin is malleable and has good plasticity. Pure tin reacts slowly with weak organic acids and has good corrosion resistance. Even if it is corroded, the resulting compounds are generally non-toxic. Therefore, a large number of tinplates are produced by hot-dip tinning, which are used in anti-corrosion or food industry. Tin-based bearing alloy (Babbitt) is an excellent wear-resistant material, it has a low coefficient of friction and good toughness, thermal conductivity and corrosion resistance. Tin can also be configured into fusible alloys, solder, printed alloys, tin bronze, and tin brass. Tin-containing zirconium-based alloys are used as nuclear fuel packaging materials in the atomic energy industry; tin-containing titanium-based alloys are used in aviation, shipbuilding, atomic energy, chemical and nuclear medical equipment and other industrial sectors. Tin-niobium intermetallic compounds can be used as superconductors. The traditional Chinese medicine compounds of tin are tin dioxide, tin tetrachloride and organic compounds of tin, which are respectively used as raw materials for ceramic glazes, coal dyes for printing and dyeing silk fabrics, as well as insecticides, antifouling agents, wood preservatives and flame arresters. https://www.star-sn.com/product/tin_ingot_supplier

Minimum Order: 1 bags

Product: Low temperature Tin Bar Product composition: Sn99.95 Product size: 315*15*11mm Product weight: 500g/piece Working temperature: 260-280℃ Flux method: manual dip tin, wave solder Product packaging: 20KG/carton Features of lead-free tin bars: lead-free tin bars 1. The lead-free tin bar is electrolyzed at high temperature to separate the excess elements inside the tin bar, so that the lead-free solder bar has high purity, less tin slag after melting, and high utilization rate. 2. The lead-free tin bars use the advanced spectrometer imported from Germany to conduct internal quality testing throughout the production process, which ensures the stable quality of the solder bars and excellent mechanical and mechanical properties. 3. In the production process of lead-free tin bars, a sufficient amount of chemical alloys are accurately and effectively added, so that the liquid surface solder can maintain a silver-white bright mirror state for a long time under high temperature conditions, avoiding copper corrosion. occur. 4. Lead-free tin bars conform to ISO9001:2008 quality system certification, and the quality is reliable and guaranteed. Suitable for all kinds of hand furnaces and wave soldering, harmless to human environment, "green products". https://www.star-sn.com/product , /low_temperature_soldering_bar_manufacturer

Minimum Order: 1 bags

About this item Joins 2.25" OD pipe to 2.25" OD pipe. Butt joint band 2.25" exhaust clamp is a simple, effective way to connect heavy-duty exhaust system components such as pipes, muffler tip and catalytic converters. Width of strap: 3inch (76.2mm). Torque: 63 N·m. Package: 2pcs. Exhaust coupler clamps are serviceable, durability and reusable. Aslo can be used to repair exhaust pipes. Wrap some exhaust heat tape on the exhaust tubing over the clamping surface to provide complete seal. Distributes the clamping force evenly over the entire 360° to provide tight sealing and prevent leaks and prohibit exhaust pipe distortion. No welding design of butt joint exhaust sleeve clamp makes easy and less time consuming to install or disassemble. Material: 304 stainless steel band, zinc-plated flange bolt and nut, steel gasket, aluminum alloy I-block. Note: There is a flat face and arc curved face on the I-block , please put the arc curved face toward to the exhaust pipe make sure to get the tight close. Product Installation: The installation is very simple, customer only need to put one of the nut bar on one side and insert the bolts, put another nut bar on, then screw the nuts, and connect two pipes of unequal outside diameters. Application/Fitment: Perfect for Catback Exhausts, Mufflers, Downpipes, Headers, Manifolds. Cases No Damaging Distortion to Pipe or Flex Hose. Measure before purchasing

welded wire mesh,galvanized welded wire mesh,pvc coated welded wire mesh Welded wire mesh is level and flat in surface with sturdy structure. Welded wire mesh is used in industry and agriculture building, transportation and mining for all such purposes as poultry houses, egg baskets, runway enclosures, draining rack, fruit drying screen, fence. Material: Low carbon steel wire, stainless steel wire Weaving and characteristics: Hot dipped galvanizing after weaving Weaving with hot dipped galvanized iron wire Electric galvanizing after weaving Weaving with electric galvanized iron wire PVC coated welded wire mesh Specification Gauge: BWG12 TO BWG24 Mesh: 3/8",5/8",1/4",1/2",3/4", , 1" to 6" to 7" Length: 10' to 300' Packing: moister-proof paper, PVC film, nude packed

Specification： Material: black wire, spring steel wire, manganese steel wire and stainless steel wire. Surface treatment: galvanized or painted. Wire diameter: 0.71mm - 12.5mm. Mesh size: 1mm - 100mm. Hole type: square, rectangular and long slot. Weaving type: Plain weave, Pre-crimped, Flat top, Intermediate crimped , Lock crimped. Description： Woven Wire Mesh is manufactured from manganese steel wire, galvanized wire or stainless steel wire. The wires are woven into square, rectangular or long slot meshes.Woven vibrating screen mesh has various weaving types, such as plain weave, pre-crimped weave, flat top, intermediate crimped and lock crimped. Various weaving types can fit different vibrating screens and materials.Woven wire screen is also called quarry/mining screen mesh, screening media, which is widely used in vibrating, scalping and sizing materials of rock, stone, asphalt,quarry,aggregate, limestone, graint etc. Hook Type: Bending. Welding. Metal sheet hook. (C type or U type). Features: High tensile strength. Abrasion and wear resistance. Impact resistance. Acid and alkali resistance. Various weaving types to fit different materials. Different hook types for easy installation and fixation. Application: The woven vibrating screen mesh is widely used in the vibrating screens, crushers and trommel screens. Woven vibrating screen mesh can be used for screening and separating stones, coal, mining, gravel, sand and any other materials. More details contact us: Huatao Group - Tufflex Screen www.tufflexscreen.com /www(dot)tufflexscreen(dot)com Email: maple@huataogroup.com maple(at)huataogroup(dot)com Tel: 0086 0311 80690567 Mob: 0086 181 0331 7488

Minimum Order: 1 bags

Specification： Size : as clients Aperture : 3mm - big Wire Diameter : according to aperture Strip Material : Polyurethane or Strip Width : 1.5cm - big Strip Thickness : 8mm - big Strips Quantity : as client's requests Description： Self-cleaning screens are a non-blinding, high quality screening surface that provides accurate screening and sizing. Having many advantages over other screen types, self cleaning mesh gives higher production rates while eliminating the problem of Large unwanted flat material that contaminates the finished product. We also can add some pu strips on the bars, it will be more wearproof to improve the life. Advantage: Anti-clogging An , ti-pegging Increased wear life Accurate sizing Available to suit all types of mobile and static screens With high quality, non-blinding screening surface the Flexi-Harp is the perfect mesh. The combination of different size wire used in manufacture means that they vibrate at varying frequencies to produce a self-cleaning surface. Due to its flat surface (no knuckles Self-cleaning screens can use a smaller wire diameter than woven wire for some applications. Separates flakes and slivers from finished product while greatly reducing problems like plugging and blinding. More details contact us: Huatao Group - Tufflex Screen www.tufflexscreen.com /www(dot)tufflexscreen(dot)com Email: maple@huataogroup.com maple(at)huataogroup(dot)com Tel: 0086 0311 80690567 Mob: 0086 181 0331 7488

Minimum Order: 1 bags