CY-344 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 |
|
0.37/0.42 |
0.90/1.10 |
0.30/0.50 |
4.95/5.50 |
1.30/1.50 |
0.90/1.10 |
≤ 0.020 |
≤0.008 |
Main characteristics: Pure steel quality, dense and uniform microstructure, high strength at high temperatures, good toughness, strong ductility, strong resistance to thermal and cold fatigue, strong resistance to crack propagation, good isotropic properties, excellent hardenability, good wear resistance, good machinability and polishability, stable dimensions during quenching, and minimal deformation.
Main applications: Used as mold cores, inserts, mold cores, nitrided ejector pins, etc. in die-casting molds.
In extrusion molds, it is used as a mold core, mold pad, flow block, etc.
In terms of hot extrusion dies, they are used for hot pressing and forming of aluminum, copper, and magnesium
In the field of plastic molding, it is used for injection molds, hot and cold shearing, wear-resistant parts, etc.
Purity: It meets the requirements of ASTM E45 Method A: A sulfide, B oxide, C silicate ≤ 1.0, D spherical oxide ≤ 1.0 standards, as well as GB/T10561-2015 standards, or can be customized according to customer technical standards.
Microstructure: Complies with the requirements of GB/T1299-2014 standard and the North American NADCA#207-2022 qualification standard.
Gas content: [H] ≤ 1.5ppm, [O] ≤ 20ppm,
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-specified dimensions.
Heat treatment: spheroidizing annealing at 840℃-860℃, with Brinell hardness HB≤229.
Ultra-fine processing: 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 of ≥ grade 8.
HRC curve graph CCT diagram
