Product details
P21 die steel
Detailed introduction:
It is mainly used in mirror polishing mold, TV filter plate, cosmetic box mold, precision wrinkle processing mold, office automation equipment, automotive parts discharge processing mold.
Factory condition: Pre-hard to HB370-400
Chemical composition (%) :
C: 0.15SI: 0.30MN: appropriate amount NI: 3.0AL: 1.0CU: 1.0MO: 0.3S: appropriate amount
Characteristics:
* No heat treatment required
* Excellent machinability
* Excellent mirror finish and satisfactory gloss
* Mold life increases
* Suitable for high precision molds
* Uniform cross section hardness
* Excellent floral processing
* Excellent weldability
* Easy grinding after discharge machining
* No deformation in use
Physical properties:
Coefficient of thermal expansion 10-6 m/(m x k)
20-100 ° C 11.3
20-200 ° C 12.5
20-300℃ 13.4
Mechanical properties:
Hardness HRC 41HRC
Yield strength kgf/m ² 103(0.2%)
Tensile strength kgf/ mm2 128
Elongation % 15.6
Section shrinkage % 39.8
Longitudinal impact value Kgf.m/C㎡ 1.8-3
1. The company has established long-term and stable cooperative relations with many well-known brand steel mills at home and abroad, all of which provide proof of original material books
2. Wholesale and retail, price concessions, high quality (large quantity is preferred), timely delivery
3. The company has several large vertical band saws, as well as steel plate finishing machinery,
4. Is a set of imported high-quality mold steel sales wholesale and machining services in one of the large enterprises
5. Wide channels, sufficient supply, business scope all over the country, can meet the needs of customers in various regions
Sincerely welcome new and old customers from all walks of life friends at any time to inquire and negotiate business, our high-quality products, reasonable prices, will certainly meet your requirements!
Welcome new and old customers to inquire and negotiate.
