Die casting die steel  YTG23R

Main chemical components, (typical analysis results)

C             P               S            Cr        MO        V     Other elements  

0.37      ≤0.015     ≤0.001     5.0     2.30     0.50        add to

Similar international brand

RIGHT                  ASSAB                   HITACHI           DAID0

TYG23R            8418/DIEVAR              DAC55             DH31-S         

Production process:

•After EF + LF + VD + ESR

•The smelting ensures that YTG23R   has the quality of low gas content and high purity.

•Adopt large forging ratio and multi-directional forging with forging ratio ≥ 

8 (large forging ratio of N8 into bloom + rolling) for processing

•YTG23R  has the characteristics of smaller difference in anisotropy and higher density.

•After homogenization (48 hours) and heat treatment processes such as ultra refining + spheroidizing

 annealing YTG23R  has the advantages of small band, small grain size and very uniform structure.

Steel properties

•It has excellent machining performance and polishing performance.

•Excellent thermal strength: high temperature toughness, thermal fatigue resistance, 

fire resistance and impact resistance

•The properties and wear resistance are better than those of 8407 and 1.2344.

Heat treatment has small deformation and good hardenability.

Purpose:

• precision zinc alloy die casting die, mass aluminum alloy and magnesium alloy die casting, especially for 

high-precision die casting dieand large-scale die casting die manufacturing.

•High temperature die casting mould of pure aluminum, steel, liquid metal, etc.

•Manufacturing of precision red forging die, long life MF die and mandrel.

• thermosetting plastic mold, lamp mold, glass mold.

•The service life of ytg23r is better than 8407 and 1.2344 steel.

Physical properties:

Heat treatment:

Soft annealing             representative                    tempering

    800-850  ℃                     1020-1060℃                         550-700℃ 

Inspection standard

• ultrasonic examination:

According to the requirements of sep21: e / E or GB / t4162: AA.

Maximum defect equivalent ≤ Φ 1mm or as required by customers.

• Purity:

According to astme45 or GB / 10561-2005:

• grain size:

According to asti1 standard, the grain size (≥ grade 7) O that reaches grade 7 and finer is determined

• metallographic structure:

Reach the internal control level of NADCA standard.

• impact value:

The impact value shall be tested after heat treatment according to the method specified in NADCA standard 207.

(hardness of sample 45 ± 1hrc, size of sample without notch: 7 * 10 * 55)

Supply status:

Ultra fine spheroidized annealing, hardness ≤ 220HB.

Supply size:

Round steel diameter toΦ2-Φ700mm 

Flat steel thickness 6-600mm or customized according to customer requirements