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What is the 718 # mold steel
Mar 15, 2020
What is the 718 # mold steel
718 mold steel, China's grade 3Cr2NiMo is an improved steel grade in P20 (3Cr2Mo).
718 mold steel picture
718 mold steel picture
The quality has been greatly improved, so that it can fill the shortage of P20 mold steel and meet the occasions where P20 mold steel fails to meet the requirements. In addition to the above-mentioned Chinese standard steel grades, the steel grades currently appearing in China's mold steel market include P20 + Ni. Sweden's 718, 718H (ASSAB), PX5 \ PX4 (Datong Special Steel in Japan), GS-711, GS-738, GS-312, GS-318 (Thyssen, Germany), M238 ECOPLUS (Ballu), CS718 (National Great Wall Special Steel), SWP20 (Shanghai No. 5 Steel Co., Ltd.) and so on, so in addition to not being used for plastic mold parts with corrosion resistance requirements, it is currently the most widely used general-purpose plastic mold steel typical steel grade. Often referred to as "advanced" plastic mold steel, new steel grades are often developed as a typical comparison.
Factory state: ASSAB 718 HB: 290-310

Delivery status: The steel is delivered in annealed condition. After agreement between the two parties, it can also be delivered without annealing.

718# Steel Melamine Tableware Mold

718 steel is a Swedish ASSAB pre-hardened mirror acid proof plastic mold steel. The steel is pre-hardened, and the material is uniform. The cleanliness is high. It has excellent polishing performance and photolithography. It also has high hardenability, good electrical processing performance and skin texture processing performance. Pre-hardened steel can be used in the mold cavity without quenching. The flange can be flame hardened, which can increase the hardness to 52HRC. [1] 

The steel has good machinability and wear resistance, and the hardness distribution is uniform. It also has good polishing performance, simple processing technology and moderate price, so the amount is large.

we product Melamine Tableware Mold with 718#steel

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