The content of Cr, Mo and N gives an excellent chlorine induced corrosion resistance, SCC and erosion corrosion. It is controlled to contain 50% of Austenite and Ferrite, respectively.
Chemical compositions and physical properties
Designations
Chemical compositions (%)
Mechanical properties
Physical properties
JIS
POSCO
C
Cr
Ni
Mo
Orthers
Yield
Strength
N/mm²
Tensile
Strength
N/mm²
Elongate
%
Hadness
Hv
Specific
Heat
J/gºC
Specific
Gravity
Thermal
Expansion
Coefficient
W/m-ºC
Thermal
Conductivity
W/m-ºC
329J3L
329J3L
≤0.03
21.0~24.0
4.5~6.5
2.5~3.5
N 0.08~2.0
≥450
≥620
≥18
≤320
0.40
7.80
13.7
19.0
Applications
- Pipeline or pipe of petroleum products, Gas.
- Water tanks, water reservoir and water cleaning facilities...
- Heat exchangers to produce or transport chemical products.
