P20+Ni / AISI P20+Ni / DIN Plastic Mould Steel
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STANDARDS
P20+Ni
DIN
40CrMnNiMo8-6-4
AISI P20+Ni
CHEMICAL COMPOSITION (Typical Analysis in %)
C
Si
Mn
P
S
Cr
Ni
Mo
0.35-0.45
0.20-0.40
1.30-1.60
0.030max
0.030max
1.80-2.10
1.90-1.20
0.15-0.35
It has excellent hardening penetration and is specially used for plastic injection die moulds. The characteristics of a material are right sharpening, photo-etching properties with high purity and good homogeneity. P20+Ni is an upgraded version of plastic mould steel, which is normally supplied in pre-hardened condition. Hardness in as provided condition 280-320 HB with having uniform hardness and the extra nickel content of 1% increases through hardening. It has great machinability, appropriate for plastic molds for medium and huge size, texturing, adequate corrosion resistance, fine polish ability, vacuum-degassed steel. It can be subject to a nitriding treatment to enhance its wear resistance.
STEEL PROPERTIES
P20+Ni is an upgraded version of plastic mould steel, which is normally supplied in pre-hardened condition
Hardness in as provided condition 280-320 HB
Additional nickel content of 1% increases through hardening
P20+Ni can be micro-alloyed
Good machinability
Suitable for texturing
Outstanding Polish ability
Corrosion resistance
Vacuum-degassed steel with the following excellent features.
APPLICATION
P20+Ni is an equivalent grade of most popular steel grade of DIN which is applicable for large & small plastic mould dies. It is utilized for automotive industries, bolster plates for presses, dies for domestic goods, die holders and shoe blocks for drop hammers, high finishing plastic die, forging dies, press cassettes, up setter blocker, different dies and mould for plastic products etc.
PHYSICAL PROPERTIES
Coefficient of Thermal Expansion at °C
10¯&#; m / (m*K)
20-100
11.2
20-200
12.8
20-300
13.5
20-400
13.7
20-500
14.3
20-600
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14.7
20-700
14.9
Thermal Conductivity at °C
W / (m*K)
20
35
350
34
700
33
HEAT TREATMENT
Soft Annealing °C
710-740
Cooling
Furnace
Hardness HB
max. 235
Hardening °C
840-870
Quenching
Polymer or Oil
Hardness after quenching HRC
51
Tempering°C after quenching
100
200
300
400
500
600
700
HRC
51.5
50.2
48
46.2
43
39
29
Stocking Partners- We keep the materials from China and Europe.
Plastic Mould Steel
Main Characteristic
is in the class of Plastic mould that was developed from by adding Nickel 1.0%
Selling condition is quench and tempered
So, free from size changing after hardening
Hardness range is 280-325 HB (29-34 HRC)
Suitable for big size plastic mould which thickness over 400 mm
High strength with hardening ability
Made of steel that pass degassing process in vacuum result in polishing ability
Can do texturing or EDM
Also, can do surface hardening by various procedure.
Outstanding Properties
Texturing and Polishing properties at high level, thanks to low sulphur.
Polishing ability are better than
&#; High strength suitable to plastic mould
&#; Strength better than
&#; Well machining ability
&#; Texturing polishing and EDM is easy
&#; Homogeniety hardness through the whole section
&#; Risk free of damage from hardening process
&#; Can enhance surface hardness through induction or carburizing or Nitriding
&#; Can do hard chrome or nickel plating
Application
is a tool steel for plastic mould that posses high hardening ability and sell in harden and temper condition
Hardness is in range N/mm2 suitable for big size plastic mould thicker than 400 mm
Good for making tool in steel forming
Production through vacuum degass process of steel making
High performance in polishing, machining, texturing
Blow / injection plastic mould especially thermo plastic that is free from abrasive
Mould frames for plastic mould and die casting mould
Sleeves and die holder for extrusion
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