Description

P20 high hard steel price in India, Buy the best DIN 1.2738 high hard steel.

P20 high hard steel is available in all sizes.

Buy the best DIN 1.2738 high hard steel.

What is DIN 1.2738 high hard steel/ P20 high hard steel?

DIN 1.2738 high hard steel/ P20 high hard steel Plates Material is a versatile, low-alloy tool steel that is characterized by good toughness at moderate strength levels.

The special purpose mold steel DIN 1.2738 high hard steel/ P20 high hard steel is commonly used for plastic injection mold cavities and tooling and for die casting dies for zinc.

DIN 1.2738 high hard steel/ P20 high hard steel plate material is typically sold in the pre-hardened condition at a hardness of approximately 300 HBW.

DIN 1.2738 tool steel differs from area to area in different countries.

Europeans generally use the DIN spec-DIN EN ISO 4957 standard materials (1.2311 and 1.2312), while in Japan’s steel industry standard, PX5 is the new standard P20.

And the Americas Countries, Grade steel P20 is the most widely used steel grade material.

In China, 3CrM2Mo is the P20 steel grade equivalent, which is in the standard GB/T 1299 tool steel specification.

DIN 1.2738 tool steels are nitrided or carburized.

These DIN 1.2738 mold steel materials steels are capable of being machined into complex and large dies and molds. Material P20 steel plate and round bars are mostly used in the carburized condition.

The presence of chromium and nickel enhances the toughness and hardness of mold steel P20-grade material.

1. Supply Range of P20 Steel

Round Bar: diameter 200mm–1000mm

Steel Plate: thickness 16mm to 410mm x width 200mm-2000mm

Surface Finish: Black, Rough Machined, Turned, or as per given requirements.

5. Forging of P20 Steel Plate Mold Steel

AISI P20 steel plate and round bars materials are forged at 1093°C (2000°F) down to 899°C (1650°F).

Forging below 871°C (1600°F) is not recommended for these steel P20 materials.

6. Heat Treatment of Tool Steel P20 material

Stress Relieving
Preheating: Because mold steel P20 steel plate is sold in a pre-hardened condition, hardening heat treatment is not necessary.

After machining and intermittently during service, the steel must be thermally stress relieved by heating to 900ºF (482ºC), equalizing and holding for one hour per inch (25.4mm) of thickness, and cooling in air to ambient temperature.

In those rare circumstances where the AISI steel P20 must be re-hardened, the steel must first be annealed prior to hardening.

Hardening.

Critical Temperature: Ac1: 1405ºF (763ºC)

Preheating of P20 metal: Heat at a rate not exceeding 400ºF per hour (222ºC per hour) to 1150-1250ºF (621-677ºC) and equalize.

Austenitizing (High Heat).

Heat rapidly from the preheat to 1550°F (843°C).

Soak for 30 minutes for the first inch (25.4mm) of thickness, plus 15 minutes for each additional inch (25.4mm).

Quenching.

Pressurized gas, or interrupted oil, to 150-125°F (66-51°C).

For oil, quench until black, at about 900°F (482°C), then cool in still air to 150-125°F (66-51°C).

Tempering:

P20 tool steels are tempered at 482-593°C (900 to 1100°F) for a Rockwell C hardness of 37 to 28.

Annealing.

Annealing for AISI P20 tool steels takes place at 760-788°C (1400 to 1450°F) and then the steels are cooled slowly in the furnace at a temperature less than 4°C (40°F) per hour.

7. Applications of P20 Steel Plate or Bar

P20 tool steels are used for low-temperature applications that include injection molds and die-casting dies. Main applications of P20 steel plate and bar:

Plastic molds, die holders, backers, rames for plastic pressure dies, hydroforming mold tools.  bolsters die holders. Also suitable for other applications such as rails, shafts and wear strips.

We are reliable P20 tool steel, P20 steel plate, steel round bar, and P20 steel flat supplier. Quality guarantee and reliable service make us a better choice for you for P20 special tool steel.

We offer better P20 steel prices and supplier service. Contact us today.