SUS430 stainless steel properties, standard
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What is SUS430 material?
SUS430 (AISI 430) is a ferritic, magnetic stainless steel known for good corrosion resistance in mild conditions, excellent formability, and decorative finish, making it ideal for appliances and automotive trim; it contains ~16-18% Chromium, is non-hardenable by heat treatment but work-hardens, resists nitric acid well, and offers a cost-effective alternative to nickel-bearing stainless steels, conforming to standards like JIS SUS 430, ASTM A240, and EN 1.4016.
what is SUS430 material equivalent?
SUS430 stainless steel is a common ferritic grade, with key international equivalents being ASTM 430 (UNS S43000), EN 1.4016 (X6Cr17), and SAE 51430, offering similar low-cost, magnetic, and corrosion-resistant properties for applications like kitchenware and automotive trim, but with lower corrosion resistance than austenitic grades like 304.
|
Euronorm |
UNS |
BS |
En |
Grade |
|
1.4016 |
S43000 |
430S17 |
60 |
430 |
What are the properties of SUS430 stainless steel?
SUS430 stainless steel (a ferritic grade) offers good corrosion resistance, excellent formability, magnetism, and is cost-effective due to its lack of nickel, making it great for decorative trim, appliances, and kitchenware, known for easy bending, welding, and good finish quality, though it's less strong than chromium-nickel steels and requires care in welding for rigorous service.
Chemical Composition of Stainless steel 430
|
% |
430 |
|
C |
0-0.08 |
|
Mn |
0-1.00 |
|
Si |
0-1.00 |
|
P |
0-0.04 |
|
S |
0-0.02 |
|
Cr |
16-18 |
Mechanical Properties of Stainless steel 430
| Property | Sheet (up to 8 mm thick) | Plate (8 - 13.5 mm thick) | Plate (13.5 - 25 mm thick) | Bar (up to 100 mm diameter) |
| Tensile Strength (MPa) | 450 - 600 MPa | 450 - 600 MPa | 430 - 630 MPa | 400 - 630 MPa |
| Proof Stress 0.2% (MPa) | 260 Min MPa | 240 Min MPa | 240 Min MPa | 240 Min MPa |
| Elongation (%) | 20 Min % | 18 Min % | 20 Min % | 20 Min % |
Physical Properties of Stainless Steel 430
|
Property |
Value |
|
Density |
7.75 g/cm3 |
|
Melting Point |
1425-1510°C |
|
Modulus of Elasticity |
200 GPa |
|
Electrical Resistivity |
0.60 x 10-6 Ω.m |
|
Thermal Conductivity |
23.9 W/m.K at 100°C |
|
Thermal Expansion |
10.4 x 10-6/K at 100°C |
SUS430 Stainless steel Corrosion Resistance
Stainless steel 430 has good corrosion resistance to a large variety of media including nitric acid and some organic acids. The corrosion resistance of type 430 is optimal when it has a highly polished surface. As with other ferritic grades, resistance to stress corrosion cracking is very high.
SUS430 Stainless steel Heat Resistance
Stainless steel 430 has good resistance to oxidation in intermittent service to 870°C and in continuous service to 815°C. After prolonged heating at 400-600°C, Stainless steel 430 may become brittle and require annealing.
Heat Treatment of Stainless steel 430
Stainless steel 430 cannot be hardened by heat treatment.
Annealing is done by heating to 815°C, soaking for 30minutes per 25mm of thickness, furnace cooling to 600°C, then quickly air-cooling.
The component will become brittle if slow cooled from 540-400°C.
What is the difference between SUS304 and sus 430?
SUS304 is an austenitic stainless steel with nickel, offering superior corrosion resistance, ductility, and non-magnetism, making it ideal for food contact and complex shapes; SUS430 is a cheaper ferritic steel with no nickel, making it magnetic, less corrosion-resistant, but good for basic appliance trims and where cost is key.
GNEE Stainless Steel is an independent stockist and processor of SUS430 stainless steel. With extensive inventory and superior processing capabilities, we can meet the needs of most projects, whether for stock products or custom orders. We offer: stock size plates and sheets, stock length round bars, custom-cut plates and sheets, custom-cut round bars, cold forming of plates, sheets, and round bars, and any other necessary processing services. For any inquiries, please email info@gneestainless.com
