High Hardness Hot Forged Mirror Plastic Mould Steel Block for Tools NAK80 P21 B40

Model NO.
NAK80 P21 B40
Special Use
High-strength Steel Plate, Wear Resistant Steel
Steel Plate
Production Process
Heat Treatment
30% deposit balance by L/C at sight, or T/T
Transport Package
Standard Packing for Customers′ Request
thickness 100-810mm
HS Code
We take "customer-friendly, quality-oriented, integrative, innovative" as objectives. "Truth and honesty" is our administration ideal for High Hardness Hot Forged Mirror Plastic Mould Steel Block for Tools NAK80 P21 B40, The product will supply to all over the world, such as: French, Chile, Los Angeles, By continuous innovation, we will provide you with more valuable products and services, and also make a contribution for the development of the automobile industry at home and abroad. Both domestic and foreign merchants are strongly welcomed to join us to grow together.
Guangzhou Changfeng Steel Co., Ltd. Diamond / Audited Supplier
High Hardness Advanced Mirror Plastic Mould Steel Block for Tools (NAK80 P21 B40)

NAK80 / P21 is a high performance and high precision advanced mirror plastic mold steel for home appliance.
Steel prehardened karma and high quality mirror plastic die is similar to Japanese Diado NAK80, HSSD NAK80 Steel pre-hardened 38-42 HRC hardness, good and processing performance and polishing performance , high dimensional accuracy and stability, hardening hardness can reach 40 HRC, with the same excellent performance and imported NAK80.

1. Equivalent Grade

Chinese American German Japanese
10Ni3MnCuAl P21 XPM NAK80

2. Chemical composition (%)

Grades C Si Mn P S Mo Ni Cu
NAK80 0.05-0.18 0.15-1.00 1.0-2.0 / / 0.1-0.4 2.5-3.5 0.7-1.5
10Ni3MnCuAl 0.06-0.16 ≤0.4 1.4-1.7 ≤0.03 ≤0.03 0.2-0.5 2.7-3.3 0.8-1.2

3. Delivery Condition
Black surface, hot rolled, annealing, 33-37HRC, 2 or 4 end cutting

4. Available Dimensions

Shape Thickness/
Plate 20-30 200-2000 3000-6000
Round bar 50-1000 / 3000-6000

5. Heat Treatment

Heating temperature ºC Cooling way Hardness (HRC) Aging temperature ºC Hardness (HRC)
Preheating temperature Solution temperature
Oil cooling or air cooling 30- 35 490-550 38-42
500-600 850-910

6. Characteristic
1) Special smelting method ensures that the high purity, even and compact structure, with mirror polishing performance.
2) Electrical discharge machining performance excellent: dude to the machining surface smooth, can replace the etching process, and the hardness will not be increased during processing, so the processing efficiency is high 
3) Good welding processing properties.
4) Raw material hardness of 36-45 HRC, no need to heat treatment, can be directly manufacture die.

7. Application
NAK80 /P21 steel is widely used in automobile, computer display screen, camera and mobile phone and other transparent parts and optical components.

8. Manufacturing Process
EF → LF → VD → Argon gas protection casting ingot → Multidirectional forging → Normalizing → Annealing heat treatment → UT → Quenching → Tempering pre-hardening heat treatment → Product testing

9. Packing
Standard export packing or as customers request.

10. Payment
30% deposit balance by L/C at sight, or T/T.

11. About Us
Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.  With more than 20 years experience in special steel industry,  our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.

12. Our Services
1) Size, material, technique and other factor can be changed as your requirment.
2) Price varies on material , dimensions, finished craft and different payment term.
3) We are direct manufacturer in machinery manufacturing with experience of over 10 years.
4) Each material will be passed the UT test
5) We have an adequate inventory, so that we can arrange a quick delivery

13. FAQ
Q: Are you a manufacturer or merely a trader?
A: We are trading company act as exporting Steel Products with our own factory,
we can manufacture the products as in cutomers requirement,wholesale and retail all kinds of domestic mould steel,the price we offered is very competitive compared with other agents.
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as SGS, CE,ISO if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival. Third,the products we export are mainly from ShaGang group, WenFeng group, XingCheng group, DongTe group,DaYe and so on, the quality are certained.
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material dont have stock, the delivery lead time is about 30-50 days after receiving your prepayment or firm order.
Q: What is the payment term?
A:100% T/T  or 30%T/T deposite prepaid, 70%Balance L/C
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.