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Stainless Steel 304/304L Pipes & Tubes are among the most widely used stainless steel products, valued for their excellent corrosion resistance, durability, and versatility. Manufactured by Sumer Metal Industries, these pipes and tubes are produced using high-quality raw materials and advanced technology to meet stringent international standards. With exceptional strength and resistance to oxidation, SS 304 and 304L are suitable for both high-temperature and cryogenic applications.
The key difference between the two grades lies in carbon content — SS 304 contains up to 0.08% carbon, while SS 304L has a maximum of 0.030%. The reduced carbon in 304L enhances weldability and minimizes carbide precipitation, making it ideal for welded structures and heavy gauge components. Both grades exhibit outstanding forming and machining characteristics, making them highly adaptable across industries.
Stainless Steel 304 and 304L pipes and tubes are austenitic stainless steel materials renowned for their excellent corrosion resistance, high strength, and durability. Widely used across industries such as chemical, petrochemical, food processing, pharmaceuticals, and water treatment, these tubes ensure reliable performance in demanding piping systems.
SS 304 contains approximately 18% chromium and 8% nickel, along with low levels of carbon, manganese, and other trace elements. The 304L variant has reduced carbon content (<0.03%), which prevents carbide precipitation during welding, enhancing corrosion resistance in welded structures and reducing susceptibility to intergranular corrosion.
Sumer Metal Industries supplies these pipes and tubes in a wide range of sizes, wall thicknesses, and finishes such as seamless, welded, ERW, and fabricated types. Applications include petrochemical plants, food and beverage processing, water treatment facilities, pharmaceutical equipment, oil & gas pipelines, and construction. Each product is rigorously tested for strength, corrosion resistance, and dimensional accuracy before delivery.
As a global supplier, Sumer Metal Industries exports Stainless Steel 304/304L Pipes & Tubes to numerous countries including the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain, Oman, USA, Mexico, Canada, Egypt, Algeria, Nigeria, South Africa, Kenya, Tanzania, Spain, Germany, France, Italy, United Kingdom, Netherlands, Belgium, Turkey, Jordan, Yemen, Malaysia, Singapore, Bangladesh, Sri Lanka, Australia, Iran, Russia, Poland, Portugal, and Colombia. With strong logistics and documentation support, international deliveries are smooth and reliable.
304/304L pipes and tubes exhibit tensile strength of 515–720 MPa and yield strength of 205–310 MPa. Elongation typically ranges from 40–60%, offering excellent ductility and toughness. These mechanical properties make them suitable for high-pressure and high-temperature piping systems.
These stainless steel pipes and tubes offer excellent resistance to corrosion in oxidizing environments, such as air, water, and many chemicals. They also resist pitting and crevice corrosion in mild chloride-containing solutions, making them ideal for applications in water treatment, food processing, and marine environments.
Specification Table
| Property | 304 | 304L |
|---|---|---|
| Standards | ASTM A312 / A213 / A249 / A269, ASME SA312 | ASTM A312 / A213 / A249 / A269, ASME SA312 |
| Grades | UNS S30400, EN 1.4301 | UNS S30403, EN 1.4307 |
| Type | Seamless, Welded, ERW, Fabricated | |
| Size Range | 1/8” NB to 24” NB (custom sizes available) | |
| Wall Thickness | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160, Sch XXS | |
| Length | Single Random, Double Random, Cut Lengths | |
| Finish | Bright Annealed, Pickled, Polished, Mill Finish | |
| End | Plain End, Beveled End, Threaded | |
| Applications | Petrochemical, Oil & Gas, Food Processing, Chemical Industry, Construction, Water Treatment | |
Chemical Composition (Typical ranges for SS304/304L)
Note: Values are typical ranges. Final composition will be confirmed on MTC provided per lot.
| Element | SS 304 (%) | SS 304L (%) |
|---|---|---|
| Carbon (C) | ≤ 0.08 | ≤ 0.030 |
| Manganese (Mn) | ≤ 2.00 | ≤ 2.00 |
| Silicon (Si) | ≤ 0.75 | ≤ 0.75 |
| Phosphorus (P) | ≤ 0.045 | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 | ≤ 0.030 |
| Chromium (Cr) | 18.0 – 20.0 | 18.0 – 20.0 |
| Nickel (Ni) | 8.0 – 11.0 | 8.0 – 12.0 |
| Nitrogen (N) | ≤ 0.10 | ≤ 0.10 |
| Iron (Fe) | Balance | Balance |
Mechanical Properties (Typical)
| Property | SS 304 | SS 304L |
|---|---|---|
| Tensile Strength (MPa) | 515 – 750 | 485 – 670 |
| Yield Strength 0.2% Proof (MPa) | 205 (min) | 170 (min) |
| Elongation (% in 50mm) | 40 (min) | 40 (min) |
| Hardness (Brinell HB) | ≤ 201 | ≤ 201 |
| Modulus of Elasticity (GPa) | 193 | 193 |
| Density (g/cm³) | 8.0 | 8.0 |
| Melting Range (°C) | 1400 – 1450 | 1400 – 1450 |
Equivalent Grades
| Standard | SS 304 | SS 304L |
|---|---|---|
| UNS | S30400 | S30403 |
| EN | 1.4301 | 1.4307 / 1.4306 |
| Werkstoff Nr. | 1.4301 | 1.4306 |
| JIS | SUS 304 | SUS 304L |
| BS | 304S15 / 304S16 / 304S31 | 304S11 |
| GOST | 08Х18Н10 | 03Х18Н11 |
| AFNOR | Z7CN18-09 | Z2CN18-10 |
| IS | 304 | 304L |
Dimension & Weight Chart (Selected common sizes)
Below is a representative chart showing outside diameter, wall thickness, inside diameter, cross-sectional area of metal and calculated weight per metre (kg/m). Values are calculated using density = 7.93 g/cm³ and are for guidance — use actual MTC values for procurement & engineering.
| Nominal Pipe Size (NPS) | Outside Diameter (OD mm) | Wall Thickness (mm) | Weight (kg/m) |
|---|---|---|---|
| 1/2" | 21.3 | 2.77 | 1.27 |
| 3/4" | 26.7 | 2.87 | 1.68 |
| 1" | 33.4 | 3.38 | 2.50 |
| 1 1/4" | 42.2 | 3.56 | 3.61 |
| 1 1/2" | 48.3 | 3.68 | 4.25 |
| 2" | 60.3 | 3.91 | 5.44 |
| 3" | 88.9 | 5.49 | 12.26 |
| 4" | 114.3 | 6.02 | 18.97 |
| 6" | 168.3 | 7.11 | 37.49 |
| 8" | 219.1 | 8.18 | 61.61 |
| 10" | 273.0 | 9.27 | 97.58 |
| 12" | 323.9 | 9.53 | 115.00 |
Types Of Stainless Steel 304/304L Pipe & Tubes
SS 310 Seamless Pipe
SS 310 Welded Pipe
SS 310 ERW Pipe
SS 310S EFW Pipe
Stainless Steel 310S Seamless Tube
310H Stainless Steel Welded Tube
310 Stainless Steel Capillary Tube
310H Stainless Steel Heat Exchanger Tubes
Frequently Asked Questions (FAQ)
Q1. What is the difference between Stainless Steel 304 and 304L?
A1. The main difference is the carbon content. SS 304 has a maximum carbon content of 0.08%, while SS 304L has a lower maximum carbon content of 0.030%. This makes 304L more suitable for welding and heavy gauge components where sensitization might occur.
Q2. What standards do your Stainless Steel 304/304L Pipes & Tubes comply with?
A2. Our products comply with international standards such as ASTM A312, ASTM A213, ASTM A249, ASTM A269, ASME SA312, EN, JIS, and equivalent specifications as per client requirements.
Q3. In which industries are SS 304/304L Pipes & Tubes commonly used?
A3. They are widely used in industries like petrochemical, oil & gas, food & beverage, pharmaceuticals, construction, water treatment plants, and general engineering applications due to their corrosion resistance and durability.
Q4. Do you supply Stainless Steel 304/304L Pipes & Tubes internationally?
A4. Yes, Sumer Metal Industries exports worldwide, including to the United Arab Emirates, Saudi Arabia, Kuwait, Qatar, Bahrain, Oman, USA, Mexico, Canada, Egypt, South Africa, Europe, Asia, and many other countries.
Q5. What sizes and types of SS 304/304L Pipes & Tubes are available?
A5. We supply seamless, welded, ERW, and fabricated pipes and tubes in a wide size range from 1/8” NB to 24” NB with schedules including Sch 5s, 10s, 40s, 80s, 160, and XXS. Custom sizes and finishes are also available.
Pipes & Tubes Supplier
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