304/304L Stainless Steel - Complete Material Specifications & Properties
SS 304 and SS 304L are austenitic stainless steels prized for their excellent corrosion resistance, formability, and durability. The primary difference is the carbon content—304L has a lower carbon level, which enhances its weldability and minimizes the risk of carbide precipitation in welded structures.
Abhinav Overseas is a leading manufacturer and supplier of premium quality 304/304L stainless steel products in India. With decades of experience in the metal industry, we provide meticulously crafted products that meet international quality standards and specifications.
Our comprehensive inventory includes seamless pipes, welded tubes, precision-cut circles and rings, flat bars in various dimensions, standard and custom fittings, ANSI/ASME flanges, fasteners including bolts, nuts, and washers, and custom fabricated components.
Abhinav Overseas serves diverse industries including construction, automotive, aerospace, chemical processing, food processing, pharmaceutical, and marine applications where corrosion resistance and durability are paramount.
As a trusted name in the metal industry, we offer competitive pricing, prompt delivery schedules, and exceptional customer service. Our technical experts are available to assist you in selecting the right material specifications for your specific application needs.
Key Features
- Non-magnetic in the annealed condition
- Excellent resistance to oxidation and corrosion
- Good formability and workability
- Widely used across various industries
Chemical Composition
| Element | Composition |
|---|---|
| chromium | 18-20% |
| nickel | 8-12% |
| manganese | ≤2.0% |
| silicon | ≤1.0% |
| phosphorus | ≤0.045% |
| sulfur | ≤0.03% |
| nitrogen | ≤0.10% |
| iron | Balance |
Material Variants
304 Stainless Steel
Carbon Content: ≤ 0.08%
Mechanical Properties
- tensile Strength:515 MPa
- yield Strength:205 MPa
- elongation:40%
- hardness H R B:92
- hardness H B:201
Key Features
- Excellent corrosion resistance
- Good strength and toughness
- Ideal for applications with limited welding requirements
Common Applications
- Food processing equipment
- Kitchen appliances and sinks
- Chemical containers
- Architectural structures
- Heat exchangers and pressure vessels
Standards
304L Stainless Steel
Carbon Content: ≤ 0.03%
Mechanical Properties
- tensile Strength:485 MPa
- yield Strength:170 MPa
- elongation:40%
- hardness H R B:92
- hardness H B:201
Key Features
- Lower carbon content for improved weldability
- Minimized risk of intergranular corrosion during welding
- Suitable for heavily welded structures without post-weld annealing
Common Applications
- Pharmaceutical and chemical processing
- Marine and coastal structures
- Pipelines and storage tanks
- Medical equipment
- Heat exchangers and condensers
Standards
Products Available in 304/304L Stainless Steel
Products
Main Categories
Material Types
- Stainless Steel
- Inconel
- Incoloy
- Hastelloy
- Nickel Alloy
- Monel
- Titanium
- Cupro Nickel
Stainless Steel
Standard stainless steel compositions
| Material type | Cr | Ni | Mo | Mn | C | Si | P | S | N | Fe | Others |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 301 | 16.00-18.00 | 6.00-8.00 | - | 2.00 | 0.15 | 1.00 | 0.045 | 0.030 | 0.10 | Bal | - |
| 304 (1.4301) | 18.00-20.00 | 8.00-10.50 | - | 2.00 | 0.08 | 0.75 | 0.045 | 0.030 | 0.10 | Bal | - |
| 304L (1.4307) | 18.00-20.00 | 8.00-12.00 | - | 2.00 | 0.030 | 0.75 | 0.045 | 0.030 | 0.10 | Bal | - |
| 310S | 24.00-26.00 | 19.00-22.00 | - | 2.00 | 0.08 | 1.50 | 0.045 | 0.030 | - | Bal | - |
| 316 (1.4401) | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | 2.00 | 0.08 | 0.75 | 0.045 | 0.030 | 0.10 | Bal | - |
| 316L (1.4404) | 16.00-18.00 | 10.00-14.00 | 2.00-3.00 | 2.00 | 0.030 | 0.75 | 0.045 | 0.030 | 0.10 | Bal | - |
| 317 | 18.00-20.00 | 11.00-14.00 | 3.00-4.00 | 2.00 | 0.08 | 0.75 | 0.045 | 0.030 | 0.10 | Bal | - |
| 317L (1.4438) | 18.00-20.00 | 11.00-15.00 | 3.00-4.00 | 2.00 | 0.030 | 0.75 | 0.045 | 0.030 | 0.10 | Bal | - |
| 321 (1.4541) | 17.00-19.00 | 9.00-12.00 | - | 2.00 | 0.08 | 0.75 | 0.045 | 0.030 | 0.10 | Bal | Ti5(C+N) Min or 0.70 max |
| 347 (1.4550) | 17.00-19.00 | 9.00-13.00 | - | 2.00 | 0.08 | 0.75 | 0.045 | 0.030 | - | Bal | Cb=10x(C Min) or 1.00 Max |
| 409 | 10.50-11.75 | 0.50 | - | 1.00 | 0.08 | 1.00 | 0.040 | 0.010 | - | Bal | Ti=6x(C+N) Min or 0.70 Max |
| 409M | 11.00-12.00 | 1.5 max | - | 0.8-1.2 | 0.03 | 0.4-0.75 | 0.030 | 0.030 | - | Bal | Ti=6x(C) Min or 0.70 Max |
| 410S | 11.50-13.50 | 0.60 | - | 1.00 | 0.08 | 1.00 | 0.040 | 0.030 | - | Bal | - |
| 410 (1.4006) | 11.50-13.50 | 0.75 | - | 1.00 | 0.15 | 1.00 | 0.040 | 0.030 | - | Bal | - |
| 420 (1.4021) | 12.00-13.00 | 0.2-0.3 | - | 0.50 | 0.35 | 0.50 | 0.035 | 0.015 | - | Bal | - |
| 430 (1.4016) | 16.00-18.00 | 0.75 | - | 1.00 | 0.12 | 1.00 | 0.040 | 0.030 | - | Bal | - |
| JSL AUS | 15.50-16.50 | 4.25-4.75 | - | 7.0-8.0 | 0.08 | 0.75 | 0.070 | 0.030 | - | Bal | Cu: 0.9-1.10 |
| JS-203 | 14.25-15.25 | 2.25-2.75 | - | 9.25-10.25 | 0.08 | 0.75 | 0.070 | 0.030 | - | Bal | Cu: 1.60-2.0 |
| 301M | 14.50-15.50 | 6.0-7.0 | - | 4.5-5.5 | 0.10 | 0.75 | 0.060 | 0.030 | - | Bal | Cu: 1.70-1.90 |
| 440C (1.4125) | 16.00-18.00 | 0.75 | 0.75 | 1.00 | 0.95-1.20 | 1.00 | 0.040 | 0.030 | - | Bal | - |
| 904L (1.4539) | 19.00-23.00 | 23.00-28.00 | 4.00-5.00 | 2.00 | 0.02 | 1.00 | 0.045 | 0.035 | - | Bal | Cu: 1.00-2.00 |
| 17-4PH (1.4542) | 15.00-17.50 | 3.00-5.00 | - | 1.00 | 0.07 | 1.00 | 0.040 | 0.030 | - | Bal | Cu: 3.00-5.00, Nb: 0.15-0.45 |
| 15-5PH (1.4545) | 14.00-15.50 | 3.50-5.50 | - | 1.00 | 0.07 | 1.00 | 0.040 | 0.030 | - | Bal | Cu: 2.50-4.50 |
| Duplex 2205 (1.4462) | 21.00-23.00 | 4.50-6.50 | 2.50-3.50 | 2.00 | 0.03 | 1.00 | 0.035 | 0.020 | 0.14-0.20 | Bal | - |
| Super Duplex 2507 (1.4410) | 24.00-26.00 | 6.00-8.00 | 3.00-5.00 | 1.20 | 0.03 | 0.80 | 0.035 | 0.020 | 0.24-0.32 | Bal | Cu: 0.50 |
| 254 SMO (1.4547) | 19.50-20.50 | 17.50-18.50 | 6.00-7.00 | 1.00 | 0.02 | 0.80 | 0.030 | 0.010 | 0.18-0.22 | Bal | Cu: 0.50-1.00 |
| Alloy 20 (2.4660) | 19.00-21.00 | 32.00-38.00 | 2.00-3.00 | 2.00 | 0.07 | 1.00 | 0.045 | 0.035 | - | Bal | Cu: 3.00-4.00, Nb: 8xC-1.00 |
| 309 (1.4828) | 22.00-24.00 | 12.00-15.00 | - | 2.00 | 0.20 | 1.00 | 0.045 | 0.030 | - | Bal | - |
Need 304/304L Stainless Steel Products?
Contact our experts today to discuss your specific requirements and get a customized quote for your project.