Views: 0 Author: Site Editor Publish Time: 2023-12-13 Origin: Site
Stainless steel 430 is a widely used steel alloy known for its excellent corrosion resistance and versatility. It belongs to the ferritic family of stainless steels, which is characterized by a high chromium content and a low carbon content. The addition of chromium gives 430 stainless steel its corrosion-resistant properties, making it suitable for a variety of applications.
430 Steel Composition:
C≤% | Mn≤% | P≤% | S≤% | Si≤% | Cr | Ni≤% | |
ASTM A240 | 0.12 | 1 | 0.04 | 0.03 | 1 | 16.0-18.0 | 0.75 |
JIS G 4305 | 0.12 | 1 | 0.04 | 0.03 | 0.75 | 16.0-18.0 | |
GB/T4237-2015 | 0.12 | 1 | 0.04 | 0.03 | 1 | 16.0-18.0 |
MECHANICAL PROPERTIES ：
Standard | T.S. min | Y.S. min | EL min% | HARDNESS( max) | BEND | ||
Mpa | Mpa | 50mm | HBW | HRB | HV | ||
ASTM A240 | 450 | 205 | 22 | 183 | 89 | 180 | |
JIS G 4305 | 420 | 205 | 22 | 183 | 88 | 200 | 180 |
GB/T4237-2015 | 420 | 205 | 22 | 183 | 89 | 200 | 180 |
PHYSICAL PROPERTIES
Density, lbs./in.3 (g/cm3) | 0.28 (7.74) |
Electrical Resistivity, µΩ•in. (µΩ•cm) | 23.68(60) |
Thermal Conductivity, BTU/hr./ft./°F W/(m•K) | 15.1(26.1) |
Coefficient of Thermal Expansion, in./in./°F (µm/m/K) | 5.8 x 10-6 (10.4) |
Modulus of Elasticity, (MPa) | 200x 103 |
Specific Heat, BTU/lbs./°F (kJ/kg/K) | 0.11 (0.46) |
CORROSION RESISTANC：430 has excellent corrosion resistance, including high resistance to nitric acid as well as to sulfur gases and many organic and food acids. This alloy does not provide the resistance to pitting by dilute reducing acids that is provided by the chromium-nickel stainless steels.Because of its relatively high chromium content, the material provides good resistance to oxidation.
FORMABILITY：Type 430 is readily drawn and formed. Its drawing characteristics are similar to those of low-carbon steel, although it is stronger in the annealed condition and will require stronger tooling and increased power. It is also adaptable to most hot-forming operations.
Corrosion resistance: Although both 430 and 304 stainless steel have good corrosion resistance, 304 stainless steel is superior to 430 in its resistance to certain corrosive environments, such as those containing acids or chloride ions.
Stability: 304 stainless steel is more stable than 430 stainless steel, especially at high temperatures. This stability makes it suitable for applications involving high temperature exposure.
Ductility: 304 stainless steel exhibits better ductility, allowing it to withstand more significant deformation without breaking.
Thermal Conductivity: 430 stainless steel has higher thermal conductivity than 304 stainless steel, allowing it to transfer heat more efficiently.
Architectural interiors: both 430 and 304 stainless steel can be used for architectural interiors such as wall panels, trim and decorative elements.
Household appliances: 430 stainless steel is commonly used in the manufacture of household appliances, including ovens, microwave ovens and refrigerators.
Household Appliance Components: Due to its corrosion resistance and economy, 430 stainless steel is used for a variety of components in household appliances, such as handles, trim and panels.
Tableware: 430 stainless steel is commonly used in the production of cutlery, cookware and kitchen utensils.
One significant difference between 430 and 304 stainless steel is their price. Compared to 304 stainless steel, 430 stainless steel is generally more cost-effective, making it the preferred choice for applications where cost is a key consideration.
In summary, Stainless Steel 430 is a versatile alloy known for its corrosion resistance and economy. While it may not be able to match 304 stainless steel in terms of corrosion resistance, stability, ductility, and thermal conductivity, it has a wide range of applications in architectural interiors, home appliances, household appliance components, and tableware. Its lower price makes it an attractive option for cost-conscious projects.
