Hongyuan supplies 718 mold steel 718 round bar plate wholesale price genuine ultra-low price

【Hongyuan】【Hongyuan】Steel
【Hongyuan】Mold steel
【Hongyuan】Sweden wins 100
【Hongyuan】Pre-hardened material
【Hongyuan】 Clinker
【Hongyuan】Price
【Hongyuan】Heat treatment material
【Hongyuan】Hard material
【Hongyuan】Steel plate
【Hongyuan】Round bar
The plastic mold steel produced by ASSAB in Sweden has excellent mechanical properties and processability, and the processing technology is simple, so it is widely used in the mold processing and production industry. In addition, the mold steel has been pre-hardened to a certain hardness when leaving the factory through a special production process, which can reduce the heat treatment link in some projects and improve economic benefits.
Mold steel, my country's grade 3 is an improved steel grade, with great improvements in quality
so that it can fill the shortcomings of mold steel and meet the needs of mold steel that cannot meet the requirements. At present, in addition to the above-mentioned Chinese standard steel grades, the steel grades appearing in my country's mold steel market include +. Sweden's (B), \(Japan's Datong Special Steel), -,,,, (Germany's Thyssen), Austria's 3 (Bailu Company), China (China Great Wall Special Steel), (Shanghai Wu Steel Company), etc., Therefore, except that it cannot be used for plastic mold parts with corrosion resistance requirements, it is currently the most widely used typical steel grade of general-purpose plastic mold steel. It is often called advanced plastic mold steel, and it is often used as a comparison model for newly developed new steel types.
Factory status:
Delivery status: The steel is delivered in an annealed state. By mutual agreement, it can also be delivered without annealing.
The steel is Swedish ASSAB pre-hardened mirror acid-proof plastic mold steel. The steel has been pre-hardened and has uniform material quality. It has high cleanliness and excellent polishing performance and photolithography properties. It also has high hardenability, good electrical machining performance and skin texture processing performance. Pre-hardened steel can be used in the mold cavity without quenching, and the flange can be flame hardened to increase the hardness to. []
This steel has good machinability and wear resistance, and has uniform hardness distribution. It also has good polishing performance, simple processing technology, and moderate price, so the dosage is large.
Corresponding steel number: my country's B standard steel number 3, German standard material steel number. 3, Swedish ASSAB B standard steel number, American/standard steel number + Japanese standard steel number, optimized International Standards Organization standard steel number 3.
Usage The purpose of mold steel is the same as that of type mold steel, but due to its better hardenability and superior performance, it can produce large-sized, high-grade plastic mold forming parts. With the development of plastic molds, more, better and newer improved mold steel grades will appear, such as Baosteel's in my country. Thermoplastic plastic injection molds, extrusion molds.
Thermoplastic blow molds.
Heavy duty mold main components.
Cold structural parts.
Commonly used in the manufacture of TV casings, washing machines, refrigerator inner casings, buckets, etc.
Features: Used for large-scale long-life plastic injection molds, such as home appliances, computer casings and other molds. Plastic product molds with high surface finish. Due to their high hardness, blow molds can be used as slider forming tools in plastic molds. Mold parts that can be flame hardened or nitrided depending on production needs. Type of steel: Pre-hardened plastic mold steel Steel features: polishing, electro-etching, good welding repairability and machinability Factory condition: hardened and tempered to
Vacuum degassing and refining The steel is pure and suitable for polishing or polishing Etched plastic mold.
Supplied in a pre-hardened state, it can be directly used for mold processing without heat treatment, shortening the construction period.
After forging and rolling, the structure is dense, ultrasonic inspection, no pores, pinhole defects.
Application examples) Templates for large molds, household appliances with high surface requirements.
b) Suitable for large mirror plastic molds, such as automobiles, home appliances, audio and video products, etc.
) can be used for plastic molds with mirror polishing requirements, suitable for injection molds and blow molds of B plastics.
) High polishing degree and high requirements for mold cavity.
Chemical composition elements






Standard
Content ()
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Hardening treatment can improve the life of the mold to More than 10,000 mold times can be achieved by hardening pre-hardened steel through quenching and low-temperature tempering. When quenching, first preheat at -℃ for -hour, then keep it at -℃ for a certain period of time (at least hours), put it in oil and cool it to -℃. The oil will be air-cooled. After quenching, the hardness can reach up to 0℃. In order to prevent cracking, it should be carried out immediately at low temperature. After fire treatment and tempering, the hardness can be maintained above
Nitriding treatmentNitriding treatment can obtain a high-hardness surface structure, and the surface hardness after nitriding reaches
The mold life can reach more than 10,000 times, and the nitrided layer It has the characteristics of dense structure and smoothness, and the mold release property and resistance to moisture air and alkali corrosion are improved.
Quenching and tempering Quenching temperature~, Tempering temperature~, Hardness~
Material properties<3>Physical properties (Sample hardness B, at room temperature and high temperature)
)Temperature,density../..
)Temperature~~, linear expansion coefficient:.3.
3) Temperature, thermal conductivity././3
)Temperature, elastic modulus:
<3>Mechanical properties (Sample hardness B)
) temperature, tensile strength.
) temperature, conditional yield strength.
3) Temperature, area shrinkage//
) Temperature, elongation//
) Temperature, impact toughness
Critical temperature critical point






Temperature (approximate value)/℃







Expansion coefficient temperature/℃
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Thermal conductivity temperature/ ℃





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