Cold working die steel, steel hardenability, quenching and tempering hardness, wear resistance, strength are higher than Cr12. All kinds of cold stamping die and tools under complex shape and heavy working conditions, such as punching die, cutting die, rolling die, steel plate deep drawing die, circular saw, standard tools and gauges, thread rolling die, etc.

Product Description

Alloy Steel (Cr12MOV1):
1. Grade: Alloy Steel Cr12MOV1
2. Standard: GB 2MOV1
3. Delivery condition: Annealed
4. Hardness: HBS=207-255. Hot rolled or forging, EAF or ESR material,
5. Features: Excellent quenching hardening and high wear resistance,
6. Applications: Used widely for making various high precision, long-life cold work dies, Such as: Punch mold, cold squeezing mold; Drawing dies and mandrels; Tools for cold extruding tubes; Circular shear blades; Profiling rollers and cold rolls; Woodworking segments and tools. Gauges; Wearing parts; Guide rails and bushings.
7. MTC available
8. UT Test Passed

C	Si	Mn	Cr	Mo	V
1.40-1.60	0.30-0.50	0.20-0.50	11.00-13.00	0.70-1.20	< 1.10

Mechanical properties:

Hardness: annealed,255 ~ 207HB (14-25HRC), indentation diameter 3.8 ~ 4.2mm; Quenching, p 60 HRC

Cr12MoV purposes

Cr12MoV die steel hardenability, quenched after tempering hardness, strength, toughness is higher than CR12, diameter of 300~400mm below the workpiece can be completely quenched, quenching deformation is small, but high temperature plasticity is poor. Cr12MoV is mainly used for manufacturing composite molds and tools with large cross section, complex shape and heavy workload. Such as punching die, cutting die, rolling die, steel plate.

Heat treatment specification:

Heat treatment specifications: 1. Quenching,950 ~ 1000℃ oil cooling; 2. Quench 1020℃ and temper 200℃ for 2h.

Metallographic structure: fine granular pearlite + carbide.

Delivery status: Steel is delivered in annealed state.

Specification for softening of cold extrusion billet

Using cast iron chip protection heating, temperature 760~780°C, time 10h, furnace cold, hardness l96HBW, can be successfully achieved cold extrusion forming

Specification for ordinary isothermal spheroidization annealing

850 ~870℃×3~4h, with the furnace cooling to 740~760℃×4~5h isothermal, the air cooling hardness is less than 241HBW, eutectic carbide grade is less than 3

The optimal isothermal temperature is 740~ 76O °C, and the time is ≥4 ~5h

Specification for spheroidizing annealing

° C (860 + 1 u) x 2 ~ 4 h, at 30 ° C/h speed furnace cold, (740 +) 10 ° C x4-6 h, with the slow cooling furnace to 500 ~ 600 ° C, from air cooling. Hardness 207 ~255HBW.

Cr12MoV1 Tool Steel