P20 mold steel is a widely used low-alloy tool steel, characterized by moderate strength and good toughness. This steel is commonly used for plastic injection mold cavities and tools, as well as zinc die-casting molds. P20 is usually sold in a pre hardened state with a hardness of approximately 300 HBW.
It permits the creation of very complex, detailed metal components. It offers an excellent way to produce small and medium-sized shapes, especially parts requiring accurate manufacturing.
This form of casting today may occur in highly automated environments; production does not impose a high demand for labor following the creation of the metal pattern.
Since shell casting generates intricate parts repetitively, manufacturers utilizing this process may avoid some manufacturing tooling costs required for other production processes. Fourth, depending upon the raw materials employed, shell casting may result in the creation of very attractive exterior surfaces. Parts may require a minimal investment in finishing, for instance.
Shell casting utilizes raw materials with a high degree of efficiency. Manufacturers who employ this process typically will conserve metals and metal alloys without wasting these assets. As with many other forms of casting, when a work piece fails to meet required specifications, a manufacturer can simply re-melt it and re-use the constituent raw materials.
Since this casting process lends itself to automation in high volume production environments, it permits companies to generate large quantities of metal parts rapidly. The production of expendable shell molds may occur repetitively. While a manufacturer will eventually need to replace the metal pattern, that cost arises infrequently.
D2 tool steel is a versatile high carbon, high chromium, air hardened tool steel characterized by relatively high hardness and a microstructure containing a large amount of large chromium rich alloy carbides. These carbides have good wear resistance when in sliding contact with other metals and abrasives. Although there are other steels with higher toughness or wear resistance to choose from, D2 offers an effective combination of wear resistance and toughness, tool performance, price, and various product forms.
Usage: Molds, shearing knives, food processing knives, and measuring tools used for rollers, punches, material dropping, forming, trimming, and wire rolling
SATM 4140 corresponding grades: German42CrMo4, China42CrMo。
SATM 4140 is a chromium molybdenum alloy steel widely used as a universal high-strength steel for manufacturing shafts, shafts, bolts, gears, and other components.
| Standard | Grade | C | Mn | P | S | Si | Cr | Mo |
| ASTM A29 | 4140 | 0.38-0.43 | 0.75-1.00 | 0.035 | 0.040 | 0.15-0.35 | 0.8-1.10 | 0.15-0.25 |
| EN 10083/EN 10250 | 42CrMo4/1.7225 | 0.38-0.45 | 0.6-0.9 | 0.035 | 0.035 | 0.4 | 0.9-1.2 | 0.15-0.30 |
| GB/T3077-2015 | 42CrMo | 0.38-0.45 | 0.5-0.8 | 0.035 | 0.035 | 0.17-0.37 | 0.9-1.2 | 0.15-0.30 |
SAE 4340 steel is typically delivered in two states, namely pre hardened state (quenched and tempered) and annealed state.
In the pre hardened state, SAE 4340 has good strength, toughness, fatigue resistance, and impact toughness. In the annealed state, the surface hardness of SAE 4340 is usually lower and easier to machine.
A36 steel round bar is a hot-rolled low-carbon steel solid round bar, which is an ideal choice for all general manufacturing, production, and maintenance. Steel circles are widely used in industrial maintenance, agricultural tools, transportation equipment, decorative iron products, fences, artworks, etc. This steel shape is easy to weld, cut, shape, and drill with appropriate equipment and knowledge. Our factory stocks a variety of sizes of steel wheels at wholesale prices, including pre cut and rolled lengths that can be shipped, or we can customize cutting sizes for you to produce small or large quantities of products.
High-tech warfare is not the only form of warfare in use today. Army contact is also unavoidable. According to data, in the past two years, in addition to the original infantry tank coordination and special infiltration, the army has also adopted high-tech combat methods such as long-range drone bombing.
Nowadays, vehicles on the battlefield, including Jeeps, personnel carriers, anti-aircraft artillery vehicles, and other light transport units, must undergo external armor modification to increase soldiers’ survival rates. Armor cannot do without high-quality armor steel.
Various types of projectiles with varying distances and calibers, along with explosives, will impact armored steel during wartime use. Instantaneous armor steel can withstand tremendous kinetic energy, fragments, impacts, and energy gathering effects. Upon impact or bombing, armored steel will experience deformation, rupture, and even gasification. For this reason, we require armored steel to have extremely high ballistic resistance. Armour steel’s anti-ballistic performance is actually the ability to resist projectile penetration, impact, and collapse.
The anti-penetration capability refers to the maximum kinetic energy impact velocity at which the armor steel will not be penetrated under a certain thickness of armor steel and the angle of impact of the projectile.
Flanges are important components commonly used in the modern mechanical industry, mainly for connecting pipelines. Many car modification enthusiasts actually enjoy adding flanges to their vehicles. Let’s look at the functions and uses of flanges together.
Firstly, the function of a car flange is to expand the wheelbase, which can improve the stability of the car’s quick cornering and reduce the car’s roll.
Secondly, the fenders recess most of the original car wheels. After adding flanges, car enthusiasts can make the wheels flush with the fenders, which makes the car look more visually appealing.
Thirdly, when modifying wheels, it is recommended that car enthusiasts do not seek cheap options to purchase counterfeit wheels; fake wheels may break during driving, which can affect driving safety.
Fourthly, rebalance each wheel after installing the tires onto the new wheel rims to avoid abnormal shaking while driving at high speeds.
Fifth: When using the car, it is necessary to regularly check the tire pressure and also frequently inspect the tire surface for any signs of damage.
Flange connection is the process of fixing two pipes, fittings, or equipment onto a flange plate, adding flange pads between the two flanges, and fastening them together with bolts to complete the connection. Some pipe fittings and equipment already include flanges, which are also flange connections.
Everywhere in a boiler room or production site, there are flanged pipes and equipment.
The connection method divides flange connection types into the following categories: plate flat welding flange, neck flat welding flange, neck butt welding flange, socket welding flange, threaded flange, flange cover, neck butt welding ring loose sleeve flange, flat welding ring loose sleeve flange, ring groove surface flange and flange cover, large diameter flat plate flange, large diameter high neck flange, eight-shaped blind plate, butt welding ring loose sleeve flange, etc.
Scope of application
Due to their excellent comprehensive performance, flanges are widely used in basic engineering such as chemical, construction, water supply, drainage, petroleum, light and heavy industries, refrigeration, sanitation, plumbing, fire protection, power, aerospace, shipbuilding, etc.
