409L stainless steel coil
About 409L stainelss steel
409L stainless steel for corrosion, high temperature and resistance to fatigue, and can achieve longevity and lightweight exhaust system components. 409L high temperature resistance, and can achieve high efficiency of the engine and exhaust system, and to reduce the thickness of the exhaust system, can reduce exhaust emissions. 409L low cost, flexibility, and finished product rate, easy to replace, are environmentally friendly new products.
Chemical composition for 409L stainless steel
| Grade |
C(%) |
Si(%) |
Mn(%) |
P(%) |
S(%) |
Cr(%) |
Ni(%) |
Ti(%) |
Cu(%) |
| 409L |
≤0.03 |
≤1.0 |
≤1.0 |
≤0.04 |
≤0.03 |
10.5-11.75 |
≤0.06 |
6xC%-0.75 |
--- |
Mechanical property for 409L stainless steel
| Grade |
tensile strengthMpa |
Yield StrengthMpa |
Elongation(%) |
rate of reduction in area(%) |
Density(g/cm3) |
| 409L |
≥360 |
≥175 |
≥25 |
--- |
7.75 |
Specifications for 409L stainless steel
| Technical |
thickness |
Width |
finish |
Origin |
| Cold rolled |
0.5mm-3.0mm |
Standard width in China:1000mmm 1219mmSpecial:can be ordered |
2D |
TISCO / Baosteel etc |
Applications for 409L stainless steel
409L stainless steel is one of the most widely used chromium nickel stainless steel, which has good corrosion resistance, heat resistance, low temperature strength and mechanical properties.
Widely used in chemical, food, medicine, paper, petroleum, atomic energy and other industries, as well as construction, kitchen utensils, tableware, vehicles, household appliances all kinds of parts.
Corrosion in the atmosphere, if it is an industrial atmosphere or heavily polluted areas, it is necessary to clean in time to avoid corrosion.
Standards for 409L stainless steel
GB: 00Cr11Ti(Standards from China)
ASTM: 409L (Standards from USA)
DIN: 1.4512 (Standards from Europe)
JIS: SUH409L (Standards from Japan)
The weight calculation method for 409L stainless steel
Weight(KG/PC)=thickness(mm) x width(Meter) x length(Meter) x 7.75
Small knowledge for 409L stainless steel
Crystallization characteristicsfor 409L material
The solid liquid phase region of 409L steel is very small, less than 30.
Almost no gamma phase at high temperature. So 409L began to crystallize in the steel after pouring, due to direct contact with the mold surface, the degree of supercooling of liquid phase, and mold surface and promote heterogeneous nucleation, therefore, liquid phase nucleation rate is very high, the formation of surface fine equiaxed grains. The formation of fine equiaxed grains on the surface of the titanium alloy is very fast, and the titanium carbide is too short to precipitate. After the formation of the equiaxed zone, the columnar crystals are formed in the steel, but there is no columnar crystal in 409L steel.
Carbon content of 409L steel is very low, even if the delta phase, the amount is very small. Therefore, the performance will not have a big impact.
409L steel has almost no alpha to gamma phase transition from high temperature to low temperature, so it is easy to grow grain, appear coarse ferrite, low strength, in continuous casting slab, cut off the line, easy to appear elbow phenomenon, affecting the normal production.