SS420, SS316 material product supplier, contact us to get free quote and sample!
What is Difference: SS420 vs SS316 ?
SS420 is better suited for applications requiring high hardness, strength, and wear resistance, but it has lower corrosion resistance compared to SS316. It is ideal for cutlery, surgical instruments, and other high-wear applications.
SS 316 Stainless steel is better for applications requiring excellent corrosion resistance, especially in marine, chemical, and high-chloride environments. It is also more versatile due to its good formability and weldability, making it ideal for a wide range of industrial applications, including marine, chemical processing, medical devices, and food processing.
Mechanical Properties: SS420 vs SS316
SS420:
| Property | Value |
|---|---|
| Tensile Strength | 550-700 MPa (80-100 ksi) |
| Yield Strength | 275 MPa (40 ksi) |
| Hardness (Annealed) | 187 HB |
| Elongation | 20% |
SS316:
| Property | Value |
|---|---|
| Tensile Strength | 515-690 MPa (75-100 ksi) |
| Yield Strength | 205 MPa (30 ksi) |
| Hardness (Annealed) | 95 HRB |
| Elongation | 40% |
SS420 (AISI 420):
- Type: Martensitic stainless steel
- Key Properties: High hardness and strength, moderate corrosion resistance
- Common Applications: Cutlery, surgical instruments, valves, gears
SS316 (AISI 316):
- Type: Austenitic stainless steel
- Key Properties: Excellent corrosion resistance, good formability and weldability, good high and low-temperature properties
- Common Applications: Marine environments, chemical processing, medical devices, food and beverage equipment
Why Source from Huitong Steel?
Whether you need the high-strength performance of AISI 420 or the superior corrosion protection of AISI 316, Huitong Steel provides:
Comprehensive Stock: Pipes, plates, and bars in both 316 and 420 grades.
Technical Consulting: Not sure which grade fits your budget? Our engineers provide free material selection advice.
Quality Assurance: All materials come with mill test certificates (MTC) to guarantee chemical compliance.
Need a quote for 316 or 420 stainless steel?





