FT33 Cold Work Mold Steel

One. Product Description

FT33 (Cr12MoV) is a high-carbon, high-chromium alloy steel for molds, known for its excellent hardenability and wear resistance. It exhibits minimal dimensional changes during quenching, along with outstanding toughness. After heat treatment, it attains high hardness and exceptional wear resistance. Additionally, it demonstrates good dimensional stability and is well-suited for high-precision production.

Two. Quality Standard

GB/T 1220-1992 Standard Specification

Three. Product Specifications

Four. Equivalent Grade of FT33 Mold Steel - For Reference Only

Five. Product Features and Uses

Features:

1. The organization is unified and the continuity is good.

2. High hardness and high wear resistance.

3. Good dimensional stability after heat treatment.

Use:

1. 2MM sheet, high-efficiency blanking mold, punching mold, stamping mold, the thickness is not large.

2. All kinds of scissors, inlaid blades, woodworking blades.

3. Thread rolling mold and wear block.

4. Cold heading molds, thermosetting resin molding molds, gauges.

5. Deep drawing mold, cold extrusion mold.

Six. Product Detailed Information

FT33 (Cr12MoV) mold steel is a high-carbon and high-chromium alloy body steel with high hardenability and wear resistance, small dimensional change during quenching, high toughness, and high hardness and wear resistance after heat treatment. Good dimensional stability and so on. It is suitable for making high-precision, long-life cold work molds and forming plastic molds.

FT33 steel is widely used around the world because of its high carbon, high chromium, ledeburite steel and other characteristics, and pays more attention to hardenability, hardenability and high wear resistance, so FT33 steel has good high temperature oxidation resistance. and heat treatment properties. deformability. Smaller in size, it is very suitable for manufacturing various high-precision, long-life cold work molds, cutting tools and measuring tools, etc., and is currently pursued by many automotive cold stamping mold factories. The workpieces and molds produced with FT33 mold steel have been indirectly distributed to well-known domestic and foreign auto companies such as Geely Apocalypse, JAC, Southeast, Honda, Ford, GM, BMW, Audi and Porsche.

Processing:

Stress relief annealing: After rough machining of the workpiece, heat it to 600~650°C, keep it for 2 hours, cool it down to 500°C with the furnace, and cool it in air.

Quenching: The workpiece is slowly heated up to 600 °C, the first preheating and holding for 20 minutes, the temperature is evenly raised to 850 °C, the second preheating and holding is 30 minutes, and finally the temperature is raised to 1020~1040 °C, holding for 25~40min, air cooling.

Tempering: It should be tempered immediately after quenching, at least twice, and the holding time is not less than 2 hours each time. Quenching, preheating at 820±15℃, heating at 1000±6℃ (salt bath) or 1010±6℃ (furnace controlled atmosphere), holding for 10~20min, air cooling, tempering at 200±6℃.

Note: Temper in time after quenching to prevent cracking and surface decarburization. Gauge and high-precision mold should be treated at -70 ℃ low temperature and tempered at high temperature to reduce workpiece deformation. The high temperature tempering temperature is 500~560℃, and the hardness is greater than 58HRC.

Hardness: annealing ≤255HB, indentation diameter ≥3.8mm, quenching>59HRC.

Company delivery condition is soft annealed to 255HB.

Similar material grades in other regions:

Japan SKD11 mold steel, Germany: X165CrMoV12~1.2601.