SS430 Stainless Steel Bars: The Corrosion-Resistant Backbone of Engineering
In industries where oxidation resistance, formability, and economy converge, SS430 stainless steel emerges as the material of choice. As one of the most widely used ferritic stainless steels, SS430 is engineered to perform in mildly corrosive environments—without compromising on strength or fabricability.
At Behari Lal Ispat, a trusted SS430 stainless steel bar manufacturer, we understand the material not just by grade, but by metallurgical behaviour. Whether it's rolled, forged, or precision-machined, our SS430 bars are built to serve applications that demand both cost-effectiveness and corrosion resistance.
What Is SS430 Stainless Steel?
SS430 is a ferritic stainless steel grade containing 17% chromium, making it resistant to oxidation, nitric acid, organic acids, and food processing chemicals. Unlike austenitic grades (like SS304), SS430 contains very low or no nickel, offering excellent value for applications where full corrosion immunity isn't required.
It conforms to international equivalents such as:
- AISI 430
- DIN 1.4016
- JIS SUS 430
- EN X6Cr17
Chemical Composition of SS430
| Element | Content (%) |
|---|---|
| Chromium (Cr) | 16.0 – 18.0 |
| Carbon (C) | ≤ 0.12 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Nickel (Ni) | ~ Trace |
| Iron (Fe) | Balance |
The absence of nickel makes SS430 magnetic, and its chromium content offers oxidation resistance in environments up to 815°C.
Mechanical & Physical Properties
| Property | Value |
|---|---|
| Tensile Strength | 450–600 MPa |
| Yield Strength | ≥ 280 MPa |
| Elongation at Break | ~22% |
| Modulus of Elasticity | 200 GPa |
| Hardness (Brinell) | 150–200 HB |
| Density | 7.7 g/cm³ |
| Thermal Conductivity | 26 W/m•K |
| Electrical Resistivity | ~0.60 μΩ•m |
| Magnetic | Yes (ferritic) |
Key Features of SS430
- Good Corrosion Resistance Ideal for environments with moisture, mild acids, or food exposure. Commonly used in washing machines, kitchen equipment, exhaust systems, and architectural cladding.
- High Oxidation Resistance
Performs well in elevated temperatures and air-exposed environments. - Good Ductility & Formability
Can be cold-worked and formed into complex shapes without cracking. - Magnetic Properties
Suitable for applications where magnetic response is required (e.g., induction systems). - Cost-Efficient Alternative to Austenitic Grades
Especially suitable when high corrosion resistance isn't the top priority.
Applications of SS430 Stainless Steel Bars
| Industry | Applications |
|---|---|
| Automotive | Trim parts, muffler clamps, heat shields |
| White Goods & Appliances | Dishwashers, washing machine drums, refrigerator liners |
| Architecture & Construction | Decorative trims, roofing sheets, railings, wall panels |
| Kitchen Equipment | Sinks, backsplashes, countertops, food processing tables |
| Industrial Fabrication | Ducts, tanks, equipment housings |
| Retail Fixtures | Display stands, fasteners, storage shelving |
Heat Treatment & Machinability
- Annealing: Performed at 815–870°C followed by air cooling. Restores ductility after cold working.
- Hardening: SS430 cannot be hardened by heat treatment—only by cold working.
- Weldability: Fair; requires post-weld annealing to reduce brittleness.
- Machinability: Comparable to carbon steels; works best with slow speeds and sharp tools.
SS430 vs. SS304 – A Quick Comparison
| Property | SS430 | |
|---|---|---|
| Structure | Ferritic | Austenitic |
| Chromium | ~17% | 18–20% |
| Nickel | ~None | 8–10.5% |
| Magnetic | Yes | No |
| Corrosion Resistance | Moderate | Excellent |
| Cost | Lower | Higher |
| Work Hardening | Limited | Significant |
Use SS430 where cost, moderate corrosion resistance, and formability are key. Choose SS304 for marine, chemical, or highly corrosive environments.
Why Choose Behari Lal Engineering?
As a leading SS430 stainless steel bar manufacturer, we offer:
- Custom sizes and lengths in hot rolled, cold drawn, and precision-ground bars
- Guaranteed chemical and mechanical consistency
- In-house testing for microstructure, hardness, corrosion resistance
- On-time delivery and responsive technical support for domestic and export clients
Our bars are used by OEMs, fabricators, appliance makers, and construction contractors across India and abroad.
Final Thoughts
SS430 stainless steel is the practical workhorse of the ferritic family—offering formability, oxidation resistance, and cost efficiency. When your application demands performance without the premium price tag, SS430 delivers.
Searching for a reliable SS430 stainless steel bar manufacturer?
Look no further than Behari Lal Engineering—precision forged, quality assured.