301 and 301L contain lower Cr and Ni content than 304 steel does. Cold working increases strength and generates magnetism. Compared to Aluminium, they are excellent in corrosion resistance, strength at high temperature, and fatigue strength.
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
301 301L
301 301L
≤0.15 ≤0.03
16.0~18.0 16.0~18.0
6.0~8.0 6.0~8.0
- -
- N≤0.2
≥205 ≥215
≥520 ≥550
≥40 ≥45
≤218 ≤218
0.50 0.50
7.93 7.93
16.9 16.9
16.3 16.3
Applications
- Structural materials of ships
- Details of electronic equipment
- Elastic equipment, springs
- Interior decorative covers for trains
