Stainless Steel Pipe Specification :
ASTM A312, A358 / ASME SA312, SA358
Stainless Steel Pipe Specification :
ASTM A312, A358 / ASME SA312, SA358
SS Tube Specification :
ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
Pipe Size :
1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Tube SIze :
1/2" OD to 8" OD.
Our premium range of Stainless Steel 304 Pipe is engineered with precision to deliver high strength, durability, and outstanding corrosion resistance in diverse environments. Available in SS 304, SS 304L, and SS 304H grades, these pipes are widely recognized for their versatility and reliability. Whether for fluid transport, structural integrity, or hygienic systems, 304 pipes and tubes are the preferred choice across industries worldwide.
Applications & Benefits
The adaptability of 304 pipes and tubes makes them suitable for a broad range of sectors including construction, food and beverage processing, pharmaceuticals, petrochemicals, and heat exchangers. Known for excellent weldability, cost-effectiveness, and long service life, Stainless Steel 304 Pipe ensures consistent performance in both industrial and residential projects. The material’s corrosion-resistant properties allow it to withstand harsh chemicals, high pressure, and temperature variations without compromising quality.
Why Choose Us
With decades of expertise, we specialize in delivering authentic Stainless Steel 304 Pipe that meets strict international quality standards. Each pipe undergoes rigorous testing to ensure strength, durability, and compliance with industry norms. Beyond supply, we provide complete technical support, timely delivery, and customized solutions tailored to your requirements. By choosing us as your trusted partner, you secure not just genuine SS 304 materials but also enhanced productivity, long-term savings, and sustainable business growth.
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
| SS 304H | S30409 | 1.4301 | - | - | - | - | - |
SS 304/304L/304H Seamless Pipes
Stainless Steel 304 Seamless Pipes, UNS S30400 / S30403 / S30409 Seamless Pipes, DIN 1.4301 Seamless Pipes, ASME SA 312 SS TP304H Seamless Piping
SS 304/304L/304H Seamless Tubes
ASME SA213 SS 304L /304H Seamless Tube, ASTM A213 Stainless Steel 304 Seamless Tubing, DIN 1.4301 / 1.4307 Seamless Tubes, UNS S30403 / S30409 Seamless Tube
SS 304/304L/304H Welded Pipes
Stainless Steel ASTM A312 TP304 Welded Pipes, UNS S30400 / DIN 1.4301 Welded Pipe, ASME SA312 SS 304L Welded Pipes, SS 304H Welded Pipe Supplier
SS 304/304L/304H Welded Tubes
DIN 1.4301 Welded Tubing, UNS S30400 Welded Tube, ASME SA 213 Stainless Steel 304L Welded Tubes, ASTM A213 304H SS Welded Tubes
SS 304/304L/304H EFW Pipes
ASME SA358 304 SS EFW Pipes, ASTM A358 TP304H Stainless Steel EFW Pipe, SS UNS S30400/ S30403/ S30409 EFW Pipes, SS DIN 1.4301 / 1.4306 EFW Pipes
SS 304/304L/304H ERW Pipes & Tubes
UNS S30400 ERW Pipes, Stainless Steel 304 ERW Tubing, ASTM A213 TP304L Stainless Steel ERW Tubes, ASME SA 312 SS 304H Pipe
Stainless Steel Pipe Specification :
ASTM A312, A358 / ASME SA312, SA358
SS Tube Specification :
ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
Pipe Size :
1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Tube SIze :
1/2" OD to 8" OD.
Thickness Range :
0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type :
Seamless / ERW / Welded / Fabricated Pipes
Form :
Round, Square, Rectangular, Oval, Hydraulic Etc
Length :
Single Random, Double Random & Required Length
End :
Plain End, Beveled End, Treaded
End Protection :
Plastic Caps
Outside Finish :
2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition :
Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports :
Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing :
Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials :
Sizes and Specifications other than above can be manufactured on request
Chemical Composition of Stainless Steel 304/304L/304H Seamless Pipes And Tubes
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 304 | 0.07max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 | — |
| 304L | 0.03max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 12.0 | 0.10 max |
| 304H | min: 18.0 max:20.0 |
min: 8.0 max: 10.5 |
min: 0.04 max:0.10 |
0.75 max |
2.0 max |
0.045 max |
0.03 max |
0.10 max |
Mechanical Properties Of Stainless Steel 304/304L/304H Seamless Pipes and Tubes
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 304 | 75 | 30 | 40 | 201 | 92 |
| 304L | 70 | 25 | 40 | 201 | 92 |
| 304H | 75 | 30 | 40 | 201 | 92 |
Physical Properties of 304/304L/304H Stainless Steel Pipes And Tubes
| SS 304/304L | ||||||
|---|---|---|---|---|---|---|
| Density lbm/in3 |
Thermal Conductivity (BTU/h ft. °F) |
Electrical Resistivity (in x 10-6) |
Modulus of Elasticity (psi x 106 |
Coefficient of Thermal Expansion (in/in)/ °F x 10-6 |
Specific Heat (BTU/lb/ °F) |
Melting Range (°F) |
| at 68°F: 0.285 | 9.4 at 212°F | 28.3 at 68°F | 28 | 9.4 at 32 – 212°F | 0.1200 at 68°F to 212°F | 2500 to 2590 |
| 12.4 at 932 °F | 39.4 at 752°F | 10.2 at 32 – 1000°F | ||||
| 49.6 at 1652 °F | 10.4 at 32 – 1500°F | |||||
| SS 304H | ||||||
| Denstiy lbm/in3 |
Coefficient of Thermal Expansion (min/in)-°F |
Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | ||
| at 68 °F | at 68 – 212°F | at 68 – 1600°F | at 212°F | at 932°F | at 32 – 212°F | in tension (E) |
| 0.285 | 9.2 | 11.0 | 9.4 | 12.4 | 0.12 | 29 x 106 |
Our SS 304 Pipes and Tubes are used in a wide range of applications and various industries. Below are a few of them:
Application Industries
Aerospace Industry
Food Processing Industry
Pulp & Paper Indusry
Energy Industry
Pharmaceuticals Industry
Power Plant Industry
Chemical Industry
Oil and Gas Industry
Get clear answers to common queries about our steel products, services, and delivery processes.
304 stainless steel piping is widely chosen because it balances strength, corrosion resistance, temperature tolerance, and cost-effectiveness. It performs reliably in water systems, chemical lines, food processing units, and even decorative structures. Its chromium–nickel composition protects the surface from rusting, making it a long-lasting material across diverse applications.
To decide whether grade 304 tubing fits your requirements, look at three factors: operating temperature, pressure rating, and the environment (corrosive or non-corrosive). This alloy works exceptionally well in both low and moderately high temperatures and handles most residential, commercial, and light industrial pressures. For highly acidic or chloride-rich environments, you might need tougher alloys like 316—but for general use, 304 is usually sufficient.
Yes, but the difference depends on your application. 304 alloy pipe systems offer excellent corrosion resistance, weldability, and affordability. Other grades—like 316, 310, or 321—are engineered for more extreme environments such as seawater, high-heat furnaces, or aerospace setups. For everyday structural, plumbing, and processing applications, 304 remains the most practical and budget-friendly choice.
Before purchasing, check the manufacturer’s certification, material test reports (MTR), thickness tolerance, welding quality, and surface finish. Also confirm the tubing’s grade authenticity—304 should contain 18% chromium and 8% nickel. A reputable supplier will always share compliance documents and technical specifications without hesitation.
Under normal water exposure, 304 stainless steel pipework can last several decades with minimal maintenance. Outdoors, it forms a passive layer that slows down corrosion, extending its lifespan significantly. When exposed to environments containing mild chemicals, this material continues to perform reliably and resist wear. However, if the surroundings involve strong chlorides or highly acidic substances, its durability can decrease over time. In those situations, adding a protective layer or choosing a higher-grade stainless steel alloy is recommended to maintain long-term performance.
Our Location
Flat no 5, Swapna HSG Soc
Ltd., Charkop, Kandivali West,
Mumbai, Maharashtra, India.
400067
