Serial number

category

Grade

Executive standard

Similar grades

Available varieties

Performance characteristics and uses

1

Low alloy hot work die steel

5CrNiMo

GB11880-89

GB/T1299-2000

55NiCrMoV6 (Germany ) , SKT4 ( Japan ) , 5XHM ( Russia ) , L6 ( AISI/ASTM ), 55NiCrMoV2 ( ISO ), 55NiCrMoV7 (EN)

Module

Forging

Forging

Has good toughness, strength, high wear resistance and hardenability. The mechanical properties at room temperature and 500-600 ℃ are almost the same. When heated to 500℃, the hardness can still maintain 300HB. It is used to manufacture various medium-sized forging dies with simple shapes and thicknesses of 250-300mm, and also used for trimming dies. The steel is easy to form white spots, which requires strict control of the smelting process and cooling after forging

2

Medium alloy hot work die steel

4Cr5MoSiV1

GB/T1299-2000

H13(AISI/ASTM681-2008),

BH13 (UK ) ,

8402 (Sweden),

SKD61 (Japan JICS4404-2000)

Module

Forged round steel

Forged flat steel

It is an air-cooled hardened hot work die steel, and is one of the most widely used steel grades of hot work die steel. It has good thermal strength and certain wear resistance, air quenching under the condition of lower austenitizing temperature, heat treatment deformation is small, the tendency of oxide scale produced during air quenching is small, and it can resist the erosion effect of molten aluminum. The steel is used to manufacture extrusion dies, mandrels, forging dies for forging hammers, forging press dies, precision forging machine inserts, and copper and aluminum alloy die casting dies

3

High alloy cold work die steel

Cr12Mo1V1

GB/T1299-2000

D2(AISI/ASTM618-2008),

BD2 (UK ) , X155CrMoV12-1 ( Germany ) ,

SKD11 (Japan JICS4404-2000) , SVERKER21 ( Sweden ) ,

K110 (Austria ) , 160CrMoV (ISO)

Module

Forging

It is a high-carbon and high-chromium cold work die steel widely used internationally and belongs to ledeburite steel. After years of practice, it has been proved that the performance of Cr12Mo1V1 is better than that of Cr12MoV . Because the steel has higher Mo and V content than Cr12MoV steel, and contains Co, the structure of the steel is improved, and its strength and toughness and wear resistance are improved. Japan's SKD11 composition is between China's Cr12Mo1V1 and Cr12MoV , but it contains V without Vand does not contain Co. However, Japan treats SKD11 as D2 . Cr12Mo1V1 and Cr12MoV have the same purpose, used for more demanding mold parts, extrusion dies, stamping dies, forming rolls, and also used for high wear resistance plastic molds

4

Pre-hardened plastic mold steel

3Cr2NiMo

3Cr2NiMnMo

GB/T1299-2000

YB/T094-1997

718 (Swedish ASSAB company ) ,

P20+Ni (Sweden ) , PX4/PX5 ( Japan ) ,

GS-318 (Germany ) , SWP20 ( Shanghai No. 5 Steel ) ,

CS718 (China Great Wall Special Steel )

Module

Forged round steel

Forged flat steel

Its comprehensive mechanical properties and high hardenability can make large cross-section steels have a more uniform hardness distribution after quenching and tempering. When making molds, the steel is generally advanced in quenching and tempering, with a hardness of 28-38HRC , and then processed into molds that can be used directly, which not only guarantees the use performance of large or extra-large molds, but also avoids mold deformation caused by heat treatment. The steel is easy to manufacture extra large. Large plastic molds, can also be used for die-casting molds of low melting point alloys

5

Corrosion-resistant plastic mold steel

4Cr13

YB/T094-1997

X39Cr13 (ISO, EN)

X38Cr13 (Germany ) , Z40C14 ( France )

Round bar

flat steel

Fang Gang

It belongs to the martensitic stainless steel. The steel has good machining performance. After heat treatment, it has excellent corrosion resistance, polishing performance, high strength and wear resistance, and is suitable for manufacturing with high load and high wear resistance in corrosive media Under the action of plastic abrasive tools and transparent plastic product molds. But the solderability is poor, and you must pay attention to it when using it

6

Corrosion resistant plastic mold steel

4Cr16Mo

Shanghai No. 5 Steel

CLC2316H (France),

GWS-2316, X38CrMo16 1 ( DIN )

Round bar

flat steel

Fang Gang

It belongs to the martensitic stainless steel , which has excellent corrosion resistance, high mechanical strength and wear resistance, good processing technology, and excellent mirror polishing. Suitable for corrosion-resistant plastic molds, PVC pipe fitting molds, profile extrusion molds, and plastic molds that require mirror finish

7

Pre-hardened plastic mold steel

NAK80

(Japan)

Daido Steel

P21 optimization (United States)

Module

Plank

Without heat treatment, polishing excellent optical properties , machinability,Etched good.In solution treatment, the mold or workpiece is heated to600 ℃ to preheat, then heated to 840-900 ℃ for a certain period of time (at least 2 hours), then air-cooled to room temperature, the hardness after solution is 29-32HRC . After finishing the mold, the hardness can reach 37-43HRC after aging treatment . It has excellent mirror polishing properties, suitable for making high-precision mirror molds,high-efficiency blanking molds, punching molds and impression molds, various scissors, inlaid blades, woodworking blades, thread rolling molds and wear-resistant sliders, cold heading molds, Thermosetting resin molding die, deep drawing molding die, cold extrusion die.

8

Plastic mold steel

XFP80

Xiongfeng Company

P21 optimization (United States), NAK 80 (Japan)

Module

Plank

Solution and aging treatment without quenching. Excellent polishing and etching properties, suitable for liquid crystal display templates, and high-quality plastic molds with a smooth surface