Optimization Design of Insert Hot Stamping Die’s Cooling System and Research on the Microstructural Uniformity Control of Martensitic Phase Transitions in Synchronous Quenching Process

Table 3

Basic thermal physical parameters of water.

Density (kg/m^3)	Thermal conductivity (W/m·K)	Specific heat (J/kg·K)	Kinematic viscosity (m^3/s)
998	4174	0.55	1.00e − 6