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P20

P20 plastic mold steel characteristics: ● Vacuum degassing refining treatment steel is pure, suitable for polishing or etching processed plastic mold. ● Pre-hardened state supply, no need to be directly used for mold processing in heat treatment, shortening the construction period. ● After forging and rolling, the structure is dense, 100% ultrasonic inspection, no porosity, pinhole defects.

Product introduction

P20 plastic mold steel characteristics: ● Vacuum degassing refining treatment steel is pure, suitable for polishing or etching processed plastic mold.

● Pre-hardened state supply, no need to be directly used for mold processing in heat treatment, shortening the construction period.

● After forging and rolling, the structure is dense, 100% ultrasonic inspection, no porosity, pinhole defects.


Typical use

P20 plastic mold steel use:

● Thermoplastic injection molds, extrusion molds.

● Thermoplastic blow molding dies.

● Heavy load main parts of the mold.

● Cold structural parts.

● Commonly used in the manufacture of TV sets, washing machines, refrigerator inner casings, buckets, etc.


National brands

China GB Austrian Bailu (BOHLER) Datong, Japan (DAIDO) Korea HJ American AISI German DIN Sweden One Victory (ASSAB)
3Cr2NiMo M238 PX4 HP4MA P20 1.2738 718


chemical composition

Brand Carbon C≤ Silicon Si≤ Manganese Mn≤ Chromium Cr≤ Molybdenum Mo≤
P20 0.38 0.5 0.8 1.7 0.42


performance

Brand Temperature / °C Line (expansion) expansion coefficient / °C-1, × 10-6
P20 18-100 11.9
18-200 12.2
18-300 12.5
18-400 12.81
18-500 13.11
18-600 13.41
18-700 13.71



Heat treatment

Brand annealing Quenching Temper
Heating temperature / °C Cooling method Hardness / HB Heating temperature / °C Cooling method Hardness / HRC Heating temperature / °C Cooling method Hardness / HRC
P20 710-740 Furnace cooling ≤220 850-880 Oil cooler 52-55 580-630 Air cooling 28-35


Application field

  • Industrial mold

    Industrial mold

  • Railway field

    Railway field

  • Ship field

    Ship field

  • Nuclear power

    Nuclear power

  • Mine field

    Mine field

  • Construction machinery

    Construction machinery

  • Petrochemical

    Petrochemical

  • Electronic appliances

    Electronic appliances

ADVANTAGE
Our advantage

Integrity, customer first, excellence

Rich industry experience

RICH INDUSTRY EXPERIENCE

We have been engaged in the research and development and manufacture of metal products for many years, and have accumulated rich experience in the industry. We provide stainless steel coils, stainless steel hot and cold rolled sheets, stainless steel flat plates, etc., which are recognized by the industry with integrity, strength and products!

Advantage1

Reliable product quality, reasonable price

RELIABLE PRODUCT QUALITY

Strive to meet the market demand for various specifications, and to ensure quality, low prices, welcome new and old customers to negotiate and discuss.

Advantage2

Logistics guarantee · perfect after-sales service

STRONG PRODUCTION STRENGTH

We show you the extremely accurate order status and delivery tracking system. The company has obtained ISO9001 quality system certification, and integrates R&D, production, sales and after-sales into a high-tech enterprise. The company has a perfect after-sales service system.

Advantage3
ADVANTAGE
Logistics advantage

Integrity, customer first, excellence

The logistics system escorts your goods

Processing, packaging, distribution, one-stop service

(All kinds of waterproof, export packaging)

Provide free exchanges to reduce your production costs

Orders arrive within 24 hours of delivery