Steel Seamless Tube
Steel seamless tube is a type of metal tubing that is created without any seams or welds. It is made from high-quality steel and is highly sought after in various industries due to its durability, strength, and versatility. As a reliable and efficient method of transportation, steel seamless tubes have helped revolutionize the way we move goods and materials across long distances.
One of the primary benefits of steel seamless tubes is that they are able to withstand high levels of pressure and extreme temperatures. This makes them an ideal choice for use in demanding industries such as oil and gas, chemical processing, and power generation. They are also widely used in the construction of infrastructure projects such as bridges, highways, and buildings.
Another key advantage of steel seamless tubes is their resistance to corrosion. Unlike other types of metal tubing that may rust or corrode over time, steel seamless tubes are highly resistant to corrosion, making them an excellent choice for use in harsh environments.
In addition to their practical applications, steel seamless tubes are also favored for their aesthetic qualities. The smooth surface finish of the tubing provides a sleek and polished look, making it a popular choice for use in high-end architectural designs and artistic installations.
Stainless Steel 304 Seamless Tubing Specification
Tube Range : 1/2" OD - 12" OD, Guage: 25 SWG - 10 SWG
Outer Diameter : 3.00 mm - 219.10 mm
Wall Thickness : 0.40 mm - 12.70 mm
Schedules : 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH
Length : Upto 30 meters, Custom Cut Lengths
Specifications : ASTM A213 / ASTM SA213
Types : Round, Square, Rectangle, Coil, "U" Shape, Hydraulic & Honed Tubes
| STANDARD | UNS | WERKSTOFF NR. | JIS | AFNOR | BS | GOST | EN |
| SS 304 | S30400 | 1.4301 | SUS 304 | Z7CN18‐09 | 304S31 | 08Х18Н10 | X5CrNi18-10 |
Chemical Composition
| SS | 304 |
|---|---|
| Ni | 8 – 11 |
| Fe | Balance |
| Cr | 18 – 20 |
| C | 0.08 max |
| Si | 0.75 max |
| Mn | 2 max |
| P | 0.040 max |
| S | 0.030 max |
| N | - |
Mechanical Properties
| Grade | 304 |
| Tensile Strength (MPa) min | 515 |
| Yield Strength 0.2% Proof (MPa) min | 205 |
| Elongation (% in 50mm) min | 40 |
| Hardness | |
| Rockwell B (HR B) max | 92 |
| Brinell (HB) max | 201 |
Grade Specifications
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 304 | S30400 | 304S31 | 58E | 1.4301 | X5CrNi18-10 | 2332 | SUS 304 |
Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 304 | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
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