1,45 - high quality carbon structural steel, is the most commonly used carbon tempered steel
Main features: The most commonly used medium-carbon quenched and tempered steel, good comprehensive mechanical properties, low hardenability, easy to crack when water quenched. Small pieces should be tempered, and large pieces should be normalized. Application examples: Mainly used for manufacturing high-strength moving parts such as turbine impellers and compressor pistons. Shafts, gears, racks, worms, etc. The welding part pays attention to preheating before welding, and eliminates stress annealing after welding.
2, Q235A (A3 steel) - the most commonly used carbon structural steel
Main features: High plasticity, toughness and welding performance, cold stamping performance, and a certain strength, good cold bending performance. Application examples: Widely used for general requirements of parts and welded structures. Such as levers, connecting rods, pins, shafts, screws, nuts, ferrules, brackets, frames, building structures, bridges, etc.
3, 40Cr - one of the most widely used steel, is an alloy structural steel
Main features: After quenched and tempered, it has good comprehensive mechanical properties, low temperature impact toughness, low notch sensitivity, good hardenability, high fatigue strength when oil is cooled, and easy-to-use parts with complicated shapes in water cooling. Cracks, cold-bending plasticity, tempering, or quenching and tempering after the cutting process is good, but the weldability is not good, easy to produce cracks, welding should be preheated to 100 ~ 150 °C, generally used in the conditioning state, you can also Carbonitriding and high-frequency surface hardening. Application example: After quenching and tempering, it is used to manufacture medium-speed and medium-load parts, such as machine tool gears, shafts, worms, spline shafts, thimble sleeves, etc. After quenching and tempering and high-frequency surface hardening, it is used to produce high hardness and resistance on the surface. Grinding parts, such as gears, shafts, spindles, crankshafts, spindles, sleeves, pins, connecting rods, screws and nuts, intake valves, etc., are used for heavy-duty and medium-speed impact after quenching and tempering at medium temperature. Parts, such as oil pump rotors, slides, gears, spindles, collars, etc., are used to make heavy-duty, low-impact, wear-resistant parts such as worms, spindles, shafts, and collars after quenching and low-temperature tempering. Nitride at the post-production of large-scale, low-temperature impact toughness of the transmission parts, such as shafts, gears and so on.
4, HT150 - Gray cast iron
Application examples: gear box, machine bed, box, hydraulic cylinder, pump body, valve body, flywheel, cylinder head, pulley, bearing cap, etc.
5, 35 - common materials for various standard parts and fasteners
Main features: Appropriate strength, good plasticity, high cold plasticity, and weldability. Local upsetting and drawing under cold conditions. Low hardenability, normalizing or post-quenching application examples: Suitable for parts with small cross-sections that can withstand large loads such as crankshafts, levers, connecting rods, shackles, etc., various standard parts, fasteners .
6, 65Mn - commonly used spring steel
Application examples: Small size various flat, round springs, seat springs, spring springs, spring rings, valve springs, clutch reeds, brake springs, coil springs, snap springs, etc.
7, 0Cr18Ni9 - the most commonly used stainless steel (US Steel 304, Japan Steel SUS304)
Features and Applications: As the most widely used stainless heat-resistant steel, such as food equipment, general chemical equipment, original equipment for industrial use.
8, Cr12 - commonly used cold working die steel (US steel D3, Japanese steel SKD1)
Features and Applications: Cr12 steel is a widely used cold work die steel, which belongs to the type of high-carbon and high-chromium type of mineitic steel. The steel has good hardenability and good wear resistance; due to the high carbon content of Cr12 steel 2.3%, so the impact toughness is poor, easy to embrittlement, and easy to form non-uniform eutectic carbides; Cr12 steel due to With good wear resistance, it is mostly used to make cold die, punch, blanking die, cold die, punch and die of cold extrusion die, drill sleeve, gauge , Drawing Dies, Embossing Dies, Reeling Dies, Drawing Dies, and Cold Pressing Dies for Powder Metallurgy.
9, DC53 - commonly used Japanese imports of cold work die steel
Features and Applications: High strength and toughness cold work die steel, Japan Datong special steel (strain) manufacturers steel. After high temperature tempering, it has high hardness, high toughness, and good wire cutting. For precision cold stamping dies, drawing dies, reeling dies, cold dies, punches, etc. 10, SM45 - common carbon plastic mold steel (Japanese steel S45C)
10, DCCr12MoV - wear-resistant chrome steel
Made in China. Compared to Cr12 steel with low carbon content and addition of Mo and V, carbides have been improved unevenly, MO can reduce carbide segregation and improve hardenability, V can refine grains and increase toughness. This steel has high Hardenability, cross-section below 400mm can be completely hardened, can still maintain good hardness and wear resistance at 300 ~ 400 °C, higher toughness than Cr12, small volume change during quenching, and high wear resistance Good overall mechanical properties. So it is possible to manufacture various molds with large cross-sections, complex shapes, and large impacts, such as ordinary drawing dies, punching dies, dies, blanking dies, trimming dies, piping dies, wire drawing dies. , Cold extrusion die, cold cutting scissors, circular saws, standard tools, measuring tools, etc.
11, SKD11 - toughness chrome steel
Japan's Hitachi plant production. Technically improve the casting structure in the steel, refine the grain. Compared to Cr12mov's toughness and wear resistance has increased, extending the life of the mold.
12, D2 - high carbon high chromium cold working steel
Made in the United States. Has high hardenability, hardenability, wear resistance, high temperature oxidation resistance, good resistance to rust after quenching and polishing, heat treatment deformation is small, should produce a variety of cold work molds that require high precision, long life , Tools and measuring tools, such as drawing die, cold extrusion die, cold shearing blade, etc.
13, SKD11 (SLD) - non-deformation tough high chromium steel
Japan Hitachi Plant Production. As the content of MO, V in the steel increases, the casting structure in the steel is improved, the grain is refined, and the carbide morphology is improved, so the strength and toughness (flexural strength, deflection, impact toughness) of the steel are improved. Such as) higher than SKD1, D2, wear resistance has also been increased, but also has a higher resistance to tempering. Practice has shown that this steel mold life than Cr12mov has increased. Often require high-manufacturing molds, such as tensile die, impact Grinding wheel die and so on.
14, DC53 - high toughness high chromium steel
Japan Tatung Co., Ltd. production. Heat treatment hardness higher than SKD11. High temperature (520-530) After tempering up to 62-63HRC high hardness, in strength and wear resistance DC53 more than SKD11. Toughness is twice that of SKD11. DC53 toughness in Cold working molds produce few cracks and cracks. The service life is greatly improved. The residual stress is small. The residual stress is reduced at high temperatures. The cracks and deformations after wire cutting are suppressed. Machinability and abrasiveness exceed that of SKD11. Precision stamping die, cold forging, deep drawing die, etc.
15, SKH-9 - wear resistance, high toughness of general purpose high-speed steel
Japan Hitachi Corp. Production. Used for cold forging die, cutting machine, drill, reamer, punch and so on.
16, ASP-23 - powder metallurgy high speed steel
Made in Sweden. Very uniform distribution of carbides, wear resistance, high toughness, easy processing, dimensional stability of heat treatment. Used for various long-life cutting tools such as punches, deep drawing dies, drilling dies, milling cutters and shearing blades. .
17, P20 - General requirements of the size of the plastic mold
US-made. Erosion operation. Pre-hardened HB270-300. Hardened hardness HRC52.
18,718 - High-demand plastic mold
Made in Sweden. Electro-erosion operation in particular. Pre-hardened HB290-330. Hardened Hardness HRC52
19, Nak80 - high mirror, high precision plastic mold
Japan Tatung Co., Ltd. Factory Pre-hardened HB370-400. Quenched Hardness HRC52
20, S136 - anti-corrosion and mirror polishing plastic mold
Made in Sweden. Pre-hardened HB<215. Hardened Hardness HRC52.
21, H13 - common die casting mold
For aluminum, zinc, magnesium and alloy die-casting. Hot stamping die, aluminum extrusion die.
22, SKD61 - Advanced Die Casting Die
Japan's Hitachi strain production, by electric re-solution technology, in the service life than H13 has significantly improved. Hot stamping die, aluminum extrusion die.
23, 8407 - Advanced Die Casting Die
Made in Sweden. Hot Stamping Dies, Aluminum Extrusion Dies.
24, FDAC - adding sulfur to enhance its easy machinability
Factory pre-hardness 338-42HRC, can be directly carved processing, without quenching, tempering. Used for small batch mold, simple mold, all kinds of resin products, sliding parts, short delivery time mold parts, zipper mold, Spectacle frame model.
Rodenticide 0.5%mother liquid is second-generation anticoagulant rodenticide, eco-friendly with good flavor the rat like in superio quality and good reputation sells around domestic and overseas.It is a universally accepted second-generation anticoagulant which has a good palatability. Death happens at only small doges. The product is one of the best ideal rodentice for large-area rats killing now.
Bromadiolone Liquid,Borax Mice Killer,Rodent Killer Lowes,Mouse Mouse Killer
Liaoning Xinhe Technology Co.,Ltd. , https://www.bothpestcontrol.com