Stainless Steel
What is Stainless Steel?
Stainless Steel is an iron alloy with a minimum of 10.5% chromium content, which forms a passive layer that protects it from corrosion and oxidation. Various grades contain additional elements like nickel, molybdenum, manganese, and nitrogen to enhance specific properties such as formability, strength, or corrosion resistance.
The main categories of stainless steel include:
- Austenitic (e.g., 304, 316) – Non-magnetic, excellent corrosion resistance
- Ferritic (e.g., 430) – Magnetic, good resistance and formability
- Martensitic (e.g., 410, 420) – High hardness, moderate corrosion resistance
- Duplex (e.g., 2205) – High strength and chloride resistance
- Precipitation-Hardening (e.g., 17-4 PH) – High strength and corrosion resistance
| Products |
|---|
|
Stainless Steel |
|
Carbon Steel |
|
Duplex Stainless Steel |
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Super Duplex Stainless Steel |
|
Alloy Steel |
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Titanium |
|
Hastelloy |
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Inconel |
|
Monel |
|
Aluminium |
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Copper |
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Pure Nickel |
|
Flanges |
|
Forged Fittings |
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Valves |
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Fasteners |
Key Features of Stainless Steel
➤ Excellent Corrosion & Oxidation Resistance – Ideal for harsh environments
➤ Hygienic and Aesthetic Surface Finishes – Easy to clean and visually appealing
➤ High Strength-to-Weight Ratio – Reliable for structural and load-bearing applications
➤ Excellent Formability & Weldability – Adaptable across fabrication techniques
➤ Thermal and Cryogenic Stability – Performs well across extreme temperature ranges
➤ Long Service Life with Low Maintenance – High ROI for industrial systems
Stainless Steel Products
Specification Chart – Stainless Steel (General)
| Property | Details |
|---|---|
|
Product Forms
|
Sheets, Plates, Coils, Tubes, Pipes, Bars, Rods, Wires |
|
Common Grades |
304, 316, 310, 321, 430, 410, 2205, 17-4 PH |
|
Standards |
ASTM A240, A312, A554, A276, EN 10088, JIS G4305 |
|
Finishes Available |
2B, BA, No.4, No.8 (Mirror), Hairline, Matte, Polished |
|
Thickness Range |
0.3 mm – 100 mm |
|
Width / OD Range |
Up to 2000 mm (sheets), 6 mm – 355 mm (pipes) |
|
Surface Protection |
PVC Coated, Paper Interleaf, Oiled |
|
Certifications |
EN 10204 3.1 / 3.2, NACE, ISO, PED, ASTM, IBR |
Chemical Composition Chart – Stainless Steel 304 (Typical)
| Element | Symbol | Composition (%) |
|---|---|---|
|
Chromium |
Cr |
18.0 – 20.0 |
|
Nickel |
Ni |
8.0 – 10.5 |
|
Carbon |
C |
≤ 0.08 |
|
Manganese |
Mn |
≤ 2.0 |
|
Silicon |
Si |
≤ 0.75 |
|
Phosphorus |
P |
≤ 0.045 |
|
Sulfur |
S |
≤ 0.030 |
|
Iron |
Fe |
Balance |
Mechanical Properties Chart – Stainless Steel 304 (Typical)
| Property | Value | Application Relevance |
|---|---|---|
|
Tensile Strength (MPa) |
≥ 515 |
Strength for pressure and load |
|
Yield Strength (MPa) |
≥ 205 |
Resistance to deformation |
|
Elongation (%) |
≥ 40 |
Excellent ductility for forming |
|
Hardness (HRB) |
≤ 90 |
Surface durability and finish |
|
Modulus of Elasticity |
193 GPa |
Structural rigidity |
Equivalent Grades Chart – Stainless Steel
| Standard | Grade | Description |
|---|---|---|
|
ASTM |
304, 316, 410 |
American standard stainless grades |
|
EN |
1.4301, 1.4404 |
European equivalents for 304, 316 |
|
JIS |
SUS 304, SUS 316 |
Japanese Industrial Standard |
|
UNS |
S30400, S31600 |
Unified Numbering System |
|
DIN |
X5CrNi18-10 |
German standard for 304 |
Stainless Steel Weight Chart
| Thickness (mm) | SS 304 (kg/m²) | SS 316 (kg/m²) | SS 430 (kg/m²) | SS 410 (kg/m²) | SS 2205 (kg/m²) | 17-4 PH (kg/m²) |
|---|---|---|---|---|---|---|
|
1 |
8.00 |
8.00 |
7.70 |
7.75 |
7.80 |
7.75 |
|
2 |
16.00 |
16.00 |
15.40 |
15.50 |
15.60 |
15.50 |
|
3 |
24.00 |
24.00 |
23.10 |
23.25 |
23.40 |
23.25 |
|
4 |
32.00 |
32.00 |
30.80 |
31.00 |
31.20 |
31.00 |
|
5 |
40.00 |
40.00 |
38.50 |
38.75 |
39.00 |
38.75 |
|
6 |
48.00 |
48.00 |
46.20 |
46.50 |
46.80 |
46.50 |
|
8 |
64.00 |
64.00 |
61.60 |
62.00 |
62.40 |
62.00 |
|
10 |
80.00 |
80.00 |
77.00 |
77.50 |
78.00 |
77.50 |
|
12 |
96.00 |
96.00 |
92.40 |
93.00 |
93.60 |
93.00 |
|
16 |
128.00 |
128.00 |
123.20 |
124.00 |
124.80 |
124.00 |
|
20 |
160.00 |
160.00 |
154.00 |
155.00 |
156.00 |
155.00 |
|
25 |
200.00 |
200.00 |
192.50 |
193.75 |
195.00 |
193.75 |
|
30 |
240.00 |
240.00 |
231.00 |
232.50 |
234.00 |
232.50 |
|
40 |
320.00 |
320.00 |
308.00 |
310.00 |
312.00 |
310.00 |
|
50 |
400.00 |
400.00 |
385.00 |
387.50 |
390.00 |
387.50 |
Applications of Stainless Steel
Benefits of Stainless Steel
➤ Corrosion & Chemical Resistance – Performs in acidic and marine settings
➤ Low Maintenance – Non-porous and easy to clean
➤ Versatile Finishes – From matte to mirror, suits utility and décor
➤ 100% Recyclable – Eco-friendly and sustainable
➤ Excellent Lifecycle Value – Long service life with minimal wear
➤ Non-reactive & Hygienic – Safe for food and medical use
2025 Stellanox Steel |