Melting temperature range of 4j52
The melting temperature of the alloy is about 1430 ℃.
The thermal conductivity of 4j52 is 16.7w / (m ·℃).
The specific heat capacity of 4j52 alloy is 502j / (kg? ℃).
The average linear expansion coefficient of alloy specified in 4j52 standard is shown in table 2-1. The average linear expansion coefficient of the alloy is shown in table 2-2.
Table 2-1
/10-6℃-1
20～300℃ 20～400℃ 20～450℃
9.8～11.0 9.8～11.0 –
4j52 density ρ = 8.25g/cm3.
The resistivity of 4j52 is 0.43 μ Ω· M.
Table 2-2
/10-6℃-1
20～100℃ 20～200℃ 20～300℃ 20～350℃ 20～400℃ 20～450℃ 20～500℃ 20～600℃
10.3 10.4 10.2 10.3 10.3 10.3 10.3 10.8
The Curie point of 4j52 TC = 520 ℃.
4j52 alloy has good corrosion resistance in atmosphere, fresh water and seawater.
The hardness HV of the alloy (as annealed) is about 135.
The elastic modulus of 4j52 alloy is 158gpa. [