4Cr13H Tool Steel

One. Product Description

4Cr13H Pre-Hardened Mold Steel has strong corrosion resistance to nitric acid and organic acid, and is often used for parts with high hardness and high wear resistance.

Two. Quality Standard

GB/T 1220-1992 Standard Specification for Tool Steel Alloys

Three. Product Specifications

Four. Equivalent Grade of 4Cr13H Tool Steel - For Reference Only

Five. Product Features and Uses

Features:

1. High hardness.

2. Good corrosion resistance.

3. Strong wear resistance.

Use:

1. Used for high hardness, high wear resistance hot oil pump, valve plate, valve bearing, medical equipment, plastic mold, plastic mirror mold, spring and other parts.

2. Suitable for tableware (knife) and turbine blades with good corrosion resistance (magnetic), the hardness after quenching is higher than 440A steel (magnetic), blades, nozzles, valves, board rulers, tableware (scissors).

Six. Product Detailed Information

4Cr13H is just a hardening material of 4Cr13, and H is the abbreviation of the English word hardness.

4Cr13H is characterized by martensitic stainless steel.

Heat Treatment:

Heat treatment specification:

1. Annealing, slow cooling at 800-900°C or fast cooling at around 750°C.

2. Quenching, 1050-1100 ℃ oil cooling.

3. Tempering, rapid cooling at 200-300℃.

Annealing:

General annealing at 780-800 degrees, heat preservation for 4-6 hours, cooling to 550 degrees, air cooling ≤ 50 degrees/hour, isothermal annealing at 700-800 degrees for 2-4 sales, and then heating at 670-720 degrees for storage, keeping for 2-4 hours, with The cooling rate of ≤50 degrees/hour is cooled to 500 degrees, air-cooled, and the annealing hardness is 241-197HB.

Delivery Status:

Steel is delivered in annealed condition.

Forging:

Oil-quenched mold   steel has a certain sensitivity to cracks. It is not suitable for rapid heating during forging heating. It is best to preheat once at 650-750 degrees. The forging heating temperature is 1130-1150 degrees, and the final forging temperature should be greater than 800-850 degrees. Take the upper limit temperature during ingot forging and the lower limit temperature during removal.