Stainless Steel 304, 304L, and 304H coils
Unimix Metal Corporation manufactures Stainless Steel 304, 304L, and 304H coils in Mumbai for industrial and fabrication use. These stainless steel coils are widely used in applications where corrosion resistance, weldability, and durability are important. We supply material in various thicknesses and widths with proper finishing to suit practical requirements. All coils are provided as per standard specifications to ensure reliable performance in regular industrial use.
About 304/304L/304H Coil
Stainless Steel 304, 304L, and 304H belong to the austenitic 300 series and are selected based on specific application needs. SS 304 is used for general-purpose applications where balanced strength and corrosion resistance are required. SS 304L, with its lower carbon content, is preferred in welding work to reduce the risk of corrosion in welded areas. SS 304H, on the other hand, is used in applications involving higher temperatures due to its improved strength under heat.
Choosing the correct grade depends on factors such as operating temperature, fabrication method, and exposure conditions in the working environment.
Features of SS 304/304L/304H Coil
Uniform thickness for accurate cutting and fabrication
Clean surface finish suitable for forming and processing
Easy to bend, cut, and shape without cracking
Maintains stability under normal and moderate temperature conditions
Suitable for continuous industrial usage
Available in standard finishes such as 2B and BA
Applications of SS 304 / 304L / 304H Coils
Used in fabrication of tanks, panels, and structural components
Suitable for heat exchangers and pressure-related equipment
Commonly used in food processing and chemical handling units
Applied in piping systems and storage equipment
Used in automotive and general engineering components
The following tables provide standard grade equivalents, chemical composition, and mechanical properties of Stainless Steel 304, 304L, and 304H coils to help in proper material selection.
Equivalent Grades of Stainless Steel 304 / 304L / 304H Coils
| Property | SS 304 | SS 304L | SS 304H |
|---|---|---|---|
| Werkstoff No. | 1.4301 | 1.4306 / 1.4307 | 1.4948 |
| UNS | S30400 | S30403 | S30409 |
| JIS | SUS 304 | SUS 304L | — |
| BS | 304S31 | 304S11 | — |
| GOST | 08Х18Н10 | 03Х18Н11 | — |
| AFNOR | Z7CN18-09 | Z3CN18-10 | — |
| EN | X5CrNi18-10 | X2CrNi18-9 / X2CrNi19-11 | — |
Chemical Composition of Stainless Steel 304 / 304L / 304H Coils (%)
| Element | SS 304 | SS 304L | SS 304H |
|---|---|---|---|
| C | 0.08 max | 0.035 max | 0.10 max |
| Mn | 2.00 max | 2.00 max | |
| Si | 0.75 max | 1.00 max | 0.75 max |
| P | 0.045 max | 0.045 max | 0.045 max |
| S | 0.030 max | 0.030 max | 0.030 max |
| Cr | 18 – 20 | 18 – 20 | 18 – 20 |
| Mo | — | — | — |
| Ni | 8 – 11 | 8 – 13 | 8 – 10.5 |
| N | — | — | — |
Mechanical Properties of SS 304 / 304L / 304H Coils
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Point | 1400°C (2550°F) |
| Tensile Strength | 515 MPa (75000 psi) |
| Yield Strength (0.2%) | 205 MPa (30000 psi) |
| Elongation | 35 – 40% |
Supply & Distribution
Our supply operations are structured to support both domestic and export requirements with consistent coordination and timely dispatch. Mumbai serves as a key distribution point for stainless steel coils, allowing efficient movement of materials across different regions. We regularly handle supply to international markets such as Saudi Arabia, UAE, Kuwait, Qatar, Nigeria, and parts of Europe. This extended reach allows us to support varied industrial demands while maintaining steady availability and practical delivery timelines.
Frequently Asked Questions (FAQs)
What is the difference between SS 304, 304L, and 304H coils?
SS 304 is a versatile, general-purpose stainless steel grade widely used in standard applications. SS 304L has a lower carbon content, making it ideal for welding applications by reducing the risk of intergranular corrosion. SS 304H contains higher carbon content, which enhances strength at elevated temperatures.
Which stainless steel grade is best for welding applications?
SS 304L is preferred for welding due to its low carbon content, which helps prevent corrosion in welded areas.
What thickness range is available for SS 304 coils?
SS 304 coils are available in various thicknesses and widths depending on industrial requirements.
Where are SS 304 coils commonly used?
These coils are used in chemical processing, food equipment, heat exchangers, and fabrication work.
Do you supply SS 304 / 304L / 304H coils in Mumbai?
Yes, we supply SS 304 series coils in Mumbai and across India, along with export services.
OUR PRODUCTS
- Stainless Steel 201 /202 Coils
- Stainless Steel 301Coils
- Stainless Steel 304/ 304L/304H Coils
- Stainless Steel 309 Coils
- Stainless Steel 310S Coils
- Stainless Steel 316 L/316Ti Coils
- Stainless Steel 317/317L Coils
- Stainless Steel 321 Coils
- Stainless Steel 347 Coils
- Stainless Steel 410 Coils
- Stainless Steel 904L Coils
- 201 Stainless Steel Slitting Coil
- 202 Stainless Steel Slitting Coil
- 301 Stainless Steel Slitting Coil
- 304/304L Stainless Steel Slitting Coil
- 309 Stainless Steel Slitting Shim
- 310S Stainless Steel Slitting Coil
- 316L/316L/316Ti Stainless Steel Slitting Coil
- 317/317L Stainless Steel Slitting Coil
- 321 Stainless Steel Slitting Coil
- 347 Stainless Steel Slitting Coil
- Nickel 200 Coil
- Nickel 201 Coil
- Inconel 600 Coil
- Inconel 601 Coil
- Inconel 625 Coil
- Inconel 718 Coil
- Incoloy 800 Coil
- Incoloy 825 Coil
- Monel 400 Coil
- Monel 400 Coil
- Hastelloy C276 Coil
- Hastelloy C22 Coil
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