Guangzhou Changfeng Steel Co., LTD
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Alloy Steel Plate 718 1.2738 for large plastic die with width 1.6-2.2m
718 modified prehardened mirror plastic die steel has good hardenability, uniformity of hardness and mirror polishing property.
It can displace the next generation of imported large cross section prehardened mirror plastic die steels ,such as: 1.2738,p20 etc and the next generation of imported large cross section prehardened plastic die steels.
Steel grade
| Chinese | American | German | Japanese | Swedish |
| GB | AISI | DIN | JIS | ASSAB |
| 3Cr2NiMnMo | P20+Ni | 1.2378 | PDS5S | 718 |
Chemical composition%:
| Grades | C | Si | Mn | P | S | Mo | Ni | Cr |
| 1.2738 | 0.35-0.46 | 0.2-0.4 | 1.3-1.6 | ≤0.035 | ≤0.005 | 0.15-0.25 | 0.9-1.2 | 1.8-2.2 |
| 718/3Cr2NiMnMo | 0.28-0.40 | 0.2-0.8 | 0.6-1.0 | ≤0.030 | ≤0.030 | 0.30-0.55 | 0.8-1.2 | 1.4-2.0 |
| P20+Ni | 0.32-0.40 | 0.2-0.4 | 1.0-1.5 | ≤0.030 | ≤0.035 | 0.30-0.55 | 0.8-1.2 | 1.4-2.0 |
Available Dimensions
steel plate:
continuous casting slab
Thickness:20-150mm,Width:2200mm,Length:2000-8000mm
steel ingot
Thickness:155-300mm,Width:1600mm,Length: 4000-8000mm
steel block
Thickness:300-1000mm ,Width: 800-1600mm,Length: 2000-6000mm
Heating treatment
| Quenching | Tempering | ||||
| Heating Temperature/ºC | Cooling | Hardness/HRC | Heating Temperature/ºC | Cooling | Hardness/HRC |
| 840-870 | Air | ≥50 | 550-640 | Air | 28-36 |
Characteristics
a. Good machining performance
b. Excellent polishability
c.Uniform hardness
d. High hardenability
Application
a.Skin, pear skin, imitation stone etching mold.
b. Transparent plastics such as pencil cases, daily necessities containers, high gloss requirements mold.
c. Particularly suitable for hard rubber (PS) and non-fragmented rubber (ABS) parts.
d.Automobile bumpers, interior parts, refrigerators, air conditioners, etc.
Why Choose Us?
1. Competitive price and high quality
2. OEM/ODM order accept
3. Quick delivery and standard exporting package
4. Smooth production ability(1000tons/month)
5. Flexible payment with T/T, L/C
6. Approved by ISO9001, CE, SGS every year
7. Best service with 24 hours reply
Products Pictures
