1.2738 718 P20+Ni Prehardened Special tool Die steel block For
Injection Mold
1.2738 718 P20+Ni is used for plastic moulds of medium and big size. It can be
subject to a nitriding treatment to improve it's wear resistance.
Injection and thermoplastic extrusion moulds, rubber moulds, mould
carrier frames, containers.
1. Features
A. uniform hardness qualitative of Material;
B. No quenching crack danger,Without heat treatment costs that can
reduce the tool cost;
C. Excellent polishing performance;
D. Good machining performance;
2. Application
A. The Organic chemical process parts contains chloride, especially
in the use of acid chloride catalyst.
B. The digester and bleacherin the use of paper pulp and paper
making industry.
C. Absorption tower, re-heater,gas import board, fan, blender, fair
water fin, flue and so on for using in flue gas desulfurization
system.
D. The equipment and parts in the use of acidic gas environments.
E. Acetic acid and anhydride reaction generator
F. Sulfur acid cooling
3. Grade
| GB | AISI | DIN |
| 3Cr2NiMnMo | P20+Ni | 1.2738 |
4. Chemical composition(%)
| C | Mn | Si | Cr | Ni | Mo | P | S |
| 0.35-0.45 | 1.30-1.60 | 0.20-0.40 | 1.80-2.10 | 0.90-1.20 | 0.15-0.25 | ≤0.035 | ≤0.035 |
5. Mechanical Properties:
| Hardness | Y.S.(0.2%) | UTS | Elongation | RoA | Elastic Modulus |
| HB | Mpa | KSI | Mpa | KSI | % | Z% | GPA | KSI |
| 300 | 826 | 120 | 993 | 145 | 17 | 59 | 205 | 29745 |
6. Hardness:33-37HRC
7. The process flow
1) Hot rolled or forged condition, Pre-harden &tempering ,
black surface
2) Hardness:30~36HRC
3) Hot rolled technology:EAF+LF+VD
Forged technology:EAF+LF+VD+ESR+Forging +QT + Machined surface
8. Our service:
1) Sizes, materials and others are all at your requirements and can
be changed.
2) Price varies on materials, dimensions, finish craft and
different payment.
3) We are direct manufacture in machinery manufacturing work with
experience of several decades.
4) Detail production design will be made according to information
you offer.
5) We have adequate inventory, so that we can quickly delivery.
6) The most important is that we have advanced equipment.
Product show
Warehouse
Processing
Strict Quality Control
