24 Common Metal Materials And Their Properties!

1, 45 - high-quality carbon structural steel, is the most commonly used medium carbon tempering steel
Main features: the most commonly used medium-carbon tempered steel, good overall mechanical properties, low hardenability, water quenching cracks easily. Small parts should be tempered, large parts should be normalized. Application examples: Mainly used in the manufacture of high strength moving parts, such as turbine impeller, compressor piston. Shafts, gears, racks, worm gears, etc.. Welded parts should be preheated before welding and annealed after welding to eliminate stress.
2, Q235A (A3 steel) - the most commonly used carbon structural steel
Main features: high plasticity, toughness and welding properties, cold stamping properties, and a certain degree of strength, good cold bending properties. Application examples: Widely used for general requirements of parts and welded structures. Such as the force is not big tie rods, connecting rods, pins, shafts, screws, nuts, rings, brackets, seats, building structures, bridges and so on.

3, 40Cr - one of the most widely used steel, is an alloy structural steel
Main features: tempered, with good overall mechanical properties, low-temperature impact toughness and low notch sensitivity, good hardenability, oil-cooled to get high fatigue strength, water-cooled parts of complex shapes are prone to cracking, cold bending plasticity is medium, tempered or tempered cutting and machinability is good, but the weldability is not good, prone to cracking, weld should be preheated before welding to 100 ~ 150 ° C, generally in the tempered state Used in a general state of tempering, but also can be carbonitriding and high-frequency surface quenching treatment. Application examples: tempering treatment for the manufacture of medium-speed, medium-load parts, such as machine tools, gears, shafts, worm gears, spline shafts, thimble bushing, etc., tempering and high-frequency surface quenching for the manufacture of high hardness, wear-resistant parts, such as gears, shafts, shafts, crankshafts, arbors, sleeves, pins, connecting rods, screws and nuts, intake valves, etc., quenched and tempered at medium temperatures used in the manufacture of heavy-duty, medium-rate impact of the parts, such as pumps, rotors, sliders, gears, pumps, gears, pumps, pumps, pumps, pumps, pumps, pumps, pumps and other parts. Rotor, slider, gear, spindle, ring, etc., after quenching and low temperature tempering for the manufacture of heavy-duty, low impact, wear-resistant parts, such as worm, spindle, shaft, ring, etc., carbon nitriding that is, after the manufacture of larger size, low-temperature impact toughness of the transmission parts, such as shafts, gears and so on.
4, HT150 - gray cast iron
Application examples: gear box body, machine tool bed, box, hydraulic cylinder, pump body, valve body, flywheel, cylinder head, pulley, bearing cover.
5,35--A variety of standard parts, fasteners commonly used materials
Main features: appropriate strength, good plasticity, high cold plasticity, weldability is still good. Cold state can be localized upsetting and drawing. Low hardenability, normalized or tempered after the use of application examples: suitable for the manufacture of small cross-section parts, parts that can withstand large loads: such as crankshafts, levers, connecting rods, hooks and rings, etc., a variety of standard parts, fasteners.
6, 65Mn - commonly used spring steel
Application examples: small sizes of various flat, round springs, cushion springs, spring windings, can also be made of spring rings, valve springs, clutch springs, brake springs, cold rolled coil springs, card springs and so on.
7, 0Cr18Ni9 - the most commonly used stainless steel (U.S. steel number 304, Japanese steel number SUS304)
Characteristics and applications: as a stainless steel heat-resistant steel is most widely used, such as food equipment, general chemical equipment, the original in the energy industry equipment.
8, Cr12 - commonly used cold work mold steel (U.S. steel number D3, Japanese steel number SKD1)
Characteristics and applications: Cr12 steel is a widely used cold work die steel, is a high-carbon, high-chromium type of Leistungen steel. The steel has good hardenability and good wear resistance; Cr12 steel carbon content of up to 2.3%, so the impact toughness is poor, easy to brittle cracking, and easy to form uneven eutectic carbides; Cr12 steel due to good wear resistance, more used in the manufacture of impact loads by the small requirement of high wear-resistant cold punching dies, punches, downward mold, cold heading die, cold extrusion mold punches and concave die, drilling set, gauge, wire drawing dies, embossing dies, and the use of the steel, the steel is a widely used cold work die steel, is a type of high carbon, high chromium type of leucite steel. It is also used in the manufacture of cold punching dies, punches, punches for cold heading dies, cold extrusion dies, drill bushings, gauges, wire drawing dies, embossing dies, thread rolling plates, deep drawing dies and cold pressing dies for powder metallurgy.
9,DC53--Commonly used Japanese imported cold work die steel
Characteristics and applications: high strength and toughness of cold work die steel, Japan, Daido Special Steel (Co., Ltd.) manufacturers of steel. After high temperature tempering with high hardness, high toughness, good line cutting. Used for precision cold stamping die, drawing die, thread rolling die, cold blanking die, punch, etc. 10, SM45 - ordinary carbon plastic mold steel (Japanese steel number S45C)

10,DCCr12MoV--Wear-resistant chrome steel
Domestic. Cr12 steel with low carbon content, and the addition of Mo and V, carbide inhomogeneity has been improved, MO can reduce carbide segregation and improve hardenability, V can refine the grain to increase toughness. This steel has high hardenability, cross-section in 400mm can be completely quenched, in 300 ~ 400 ℃ can still maintain good hardness and wear resistance, Cr12 has a high toughness, quenching volume change is small, but also has a high wear resistance and good overall mechanical properties. Therefore, it can be used to make various molds with large cross-section, complex shape and large impacts, such as common stretching die, punching concave die, punching die, dropping die, trimming die, edge-rolling die, wire drawing die, cold extrusion die, cold-cutting scissors, circular saws, standard tools, gauges, and so on.
11,SKD11--Toughness chrome steel
Japan Hitachi Ltd. production. Technically improve the steel casting organization, grain refinement. Cr12mov toughness and wear resistance has improved. Extends the service life of the mold.
12, D2 - high-carbon, high-chromium cold work steel
United States production. With high hardenability, hardenability, wear resistance, high-temperature oxidation resistance, good quenching and polishing corrosion resistance, heat treatment deformation is small, suitable for the manufacture of a variety of requirements for high-precision, long-life cold work molds, tools and gauges, such as tensile molds, cold extrusion molds, cold shear knives and so on.
13, SKD11 (SLD) - non-deformation toughness of high chromium steel
Japan Hitachi Ltd. production. As the steel MO, V content increases, improve the steel casting organization, refine the grain, improve the carbide morphology, and therefore the toughness of this steel (bending strength, deflection, impact toughness, etc.) than SKD1, D2 high, wear resistance has increased, but also has a higher tempering resistance. Practice has proved that this steel mold life than Cr12mov has improved. Often manufacture demanding molds, such as tensile molds, impact grinding wheel molds.
14, DC53 - high toughness high chromium steel
Japan Tatung Co. Heat treatment hardness is higher than SKD11. high temperature (520-530) tempered up to 62-63HRC high hardness, in terms of strength and abrasion resistance DC53 more than SKD11. toughness is twice as much as SKD11. DC53 toughness in the manufacture of cold work molds rarely cracked and cracked. Greatly improve the service life. Residual stress is small. High-temperature turn back to reduce residual stress. Cracks and deformation are suppressed after wire-cutting. Cutting and grinding properties exceed SKD11. Used for precision stamping dies, cold forging, deep drawing dies, etc.
15, SKH-9 - wear resistance, toughness of the general high-speed steel
Japan Hitachi Ltd. production. Used for cold forging die, cutting machine, drills, reamers, punches, etc..
16,ASP-23---Powder metallurgy high-speed steel
Swedish production. Carbide distribution is very uniform, wear-resistant, high toughness, easy processing, heat treatment size stability. Used for punches, deep drawing molds, drilling molds, milling cutters and shear blades and other types of long-life cutting tools.
17,P20--General requirements of the size of plastic molds
Made in USA. Electro-etching operation. Factory state pre-hardened HB270-300. quenched hardness HRC52.
18,718--High requirements of the size of plastic molds
Made in Sweden. Especially for electro-etching operation. Factory pre-hardened to HB290-330, hardened to HRC52.
19,Nak80--High mirror surface, high precision plastic mold.
Manufactured by DAIDOH LIMITED, Japan. Pre-hardened to HB370-400. Hardened to HRC52.
20,S136--Anti-corrosion and mirror polishing plastic mold.
Made in Sweden. Factory state pre-hardened HB <215. Quenching hardness HRC52.
21,H13--Ordinary common die-casting molds
For aluminum, zinc, magnesium and alloy die casting. Hot stamping die, aluminum extrusion die
22,SKD61--Advanced die-casting molds
Japan Hitachi company, by electric sub-ballast re-solution technology, in service life than H13 has obvious improvement. Hot stamping die, aluminum extrusion die
23,8407--Advanced die-casting die
Swedish production. Hot stamping die, aluminum extrusion die.
24, FDAC - added sulfur to enhance its easy to cut
Factory pre-hardened hardness 338-42HRC, can be directly engraved processing, without quenching, tempering. Used for small batch molds, simple molds, all kinds of resin products, sliding parts, short delivery time mold parts. Zipper mold, eyeglasses frame mold.