CY-M3Nb ESR
High-quality hot work die steel
Production Process Flow: EF+LF+VD+ESR+Forging+Heat Treatment
Chemical composition (%):
|
C |
SI |
Mn |
Cr |
Mo |
V |
P |
S |
Nb |
|
0.35/0.40 |
≤0.60 |
≤ 0.40 |
2.75/3.20 |
2.75/3.20 |
0.60/0.80 |
≤0.020 |
≤0.015 |
0.08/0.15 |
Main characteristics: Under long-term high-temperature working conditions, the mold exhibits minimal thermal deformation, good stability, excellent thermal fatigue resistance and wear resistance, good high-temperature hardenability, a wide quenching window temperature range, strong process adaptability, both high strength and toughness, and a tempering hardness of up to 60-62HRC. It can replace 5CrNiMo, 3Cr2W8V, H13, and other hot work die steels, with a lifespan 2-10 times longer than that of 5CrNiMo and 3Cr2W8V.
Main applications: die forging, roll forging, precision forging, and irregular hot forging molds, hot extrusion molds, irregular parts, heat-resistant steel, stainless steel, high-temperature alloy extrusion molds, die-casting molds, aluminum and copper alloy die-casting molds, as well as large pressure chambers and sprue bushing. Its high-temperature strength and melting resistance are greater than H13. It is also used in plastic and injection molding molds. Its good toughness can withstand impact loads, reducing chipping and cracking, making it suitable for hot stamping, high-speed stamping, and hot forming molds for difficult-to-deform materials such as titanium and nickel alloys.
Purity: Meets the standards of ASTM E45 Method A: A sulfide, B oxide, C silicate ≤ 1.0, D spherical oxide ≤ 1.0, as well as the requirements of GB/T10561-2015 standard, or customized according to customer's technical standards.
Microstructure: It meets the requirements of GB/T1299-2014 standard and NADCA#207-2022 qualification standard in North America.
Gas content: [H] ≤ 1.5ppm, [O] ≤ 20ppm, [N] ≤ 120ppm
Specifications and Dimensions: Round bars ranging from φ100 to φ600, with module thicknesses from 100mm to 600mm, and widths up to 1300mm, or produced according to customer's standard dimensions.
Heat treatment: spheroidizing annealing at 860℃-900℃, with Brinell hardness HB≤200.
Ultrafine treatment: The microstructure meets the NADCA#207-2022 qualification standard or GB/T1299-2014 qualification standard, with microstructures ranging from AS1 to AS4, band structures ranging from SA1 to SA3, and grain sizes meeting the GB/T6394-2002 standard, with a grade of ≥8.
HRC curve CCT diagram
