304 Pipe
Product Descripition
What is 304 Pipe
Stainless Steel 304 Pipe is ideal for all structural applications where greater strength and superior corrosion resistance are required. Stainless Steel 304 Pipe is a metallic pipe made up of austenitic stainless steel that has 18% chromium and 8% nickel in the composition. Bestar Steel is the leading manufacturer and supplier of stainless steel 304 pipes in various types and sizes. 304 pipe is the most versatile and widely used of various stainless steel pipes due to its versatility and high-end durability. Its chemical composition, mechanical properties, weldability, and corrosion/oxidation resistance provide the best all-round performance stainless steel at a relatively low cost. The 304 pipe provides protection from corrosion and pitting, which adds longer life to the product.
Product Specification
What is the specification of 304 pipe
Standard of 304 pipe:
ASTM: ASTM A312,ASTM A376, ASTM A269, ASTM A249, ASTM A403, ASTM A182, ASTM A351
ASME: ASME SA312, ASME SA376
Pressure: SA358, SA269, SA249, SA403, SA182, SA351
Size Range of 304 pipe:
Seamless steel pipe: OD: 3-600mm. WT: 0.5-100mm, Length: 24000mm
Welded steel pipe: OD: 6-1219mm. WT: 0.3-45mm, Length: 18000mm
Chemical Composition
Chemical Composition of ASTM A312 Stainless Steel 304 Pipe
| Grade | UNS Designation |
Composition | |||||||
| Carbon | Manganese | Phosphorous | Sulfur | Silicon | Chromium | Nickel | Molybdenum | ||
| TP304 | S30400 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0 – 20.00 | 8.0-11.0 | ... |
| TP304L | S30403 | 0.035 D | 2.00 | 0.045 | 0.03 | 1.00 | 18.0 – 20.00 | 8.0-113.0 | ... |
| TP304H | S30409 | 0.04 – 0.10 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0 – 20.00 | 8.0-11.0 | ... |
| ... | S30415 | 0.04 – 0.06 | 0.8 | 0.045 | 0.03 | 1.00 –2.00 | 18.0 – 19.0 | 9.0-10.0 | ... |
| TP304N | S30451 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0 – 20.00 | 8.0-18.0 | ... |
| TP304LN | S30453 | 0.035 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0 – 20.00 | 8.0-12.0 | ... |
Mechanical Properties
Mechanical Properties of ASTM A312 Stainless Steel 304 Pipe
| Grade | UNS Designation |
Tensile Strength min, ksi [MPa] |
Yield Strength, min, ksi [MPa] |
| TP304 | S30400 | 75[515] | 30[205] |
| TP304L | S30403 | 70[485] | 25[170] |
| TP304H | S30409 | 75[515] | 30[205] |
| . . . | S30415 | 87[600] | 42[290] |
| TP304N | S30451 | 80[550] | 35[240] |
| TP304LN | S30453 | 75[515] | 30[205] |
Application
304 pipe application
- Trailers
- Heat Exchangers
- Food processing equipment
- Kitchen benches, sinks, troughs, equipment and appliances
- construction materials
- Threaded fasteners
- Chemical containers, including for transport
- Automotive trim
- Architectural applications
- Railway cars
- Woven or welded screens for mining, quarrying & water filtration
Size Chart of Stainless Steel 304 Pipe
| NPS Designator | Outside Diameter in. | Schedule 5S in. | Schedule 10S in. | Schedule 40S in. | Schedule 80S in. |
| 1/4 | 0.54 | 0.065 | 0.088 | 0.119 | |
| 3/8 | 0.675 | 0.065 | 0.091 | 0.126 | |
| 1/2 | 0.84 | 0.065 | 0.083 | 0.109 | 0.147 |
| 3/4 | 1.05 | 0.065 | 0.083 | 0.113 | 0.154 |
| 1.0 | 1.315 | 0.065 | 0.109 | 0.133 | 0.179 |
| 1 1/4 | 1.66 | 0.065 | 0.109 | 0.14 | 0.191 |
| 1 1/2 | 1.9 | 0.065 | 0.109 | 0.145 | 0.2 |
| 2 | 2.375 | 0.065 | 0.109 | 0.154 | 0.218 |
| 2 1/2 | 2.875 | 0.083 | 0.12 | 0.203 | 0.276 |
| 3 | 3.5 | 0.083 | 0.12 | 0.216 | 0.3 |
| 3 1/2 | 4 | 0.083 | 0.12 | 0.226 | 0.318 |
| 4 | 4.5 | 0.083 | 0.12 | 0.237 | 0.337 |
| 5 | 5.563 | 0.109 | 0.134 | 0.258 | 0.375 |
| 6 | 6.625 | 0.109 | 0.134 | 0.28 | 0.432 |
| 8 | 8.625 | 0.109 | 0.148 | 0.322 | 0.5 |
| 10 | 10.75 | 0.134 | 0.165 | 0.365 | 0.5 |
| 12 | 12.75 | 0.156 | 0.18 | 0.375 | 0.5 |
Manufacturing Process of Stainless Steel 304 Pipe:
Test:
PMI test
