| Customization: | Available |
|---|---|
| Application: | Chemical Industry, Oil and Gas Industry, Chemical Industry, Oil and Gas Industry, Chemical Industry, Oil and Gas Industry |
| Certification: | ISO9001, ISO9001, ISO9001 |
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Stainless Steel Seamless Tube, SS Seamless Tube, Seamless Stainless Tube, Seamless Stainless Steel Tube, 316 Seamless Tubing, 304 SS Seamless Tubing, Seamless Round Tube, SS Seamless Tube Specification, Seamless 316, Stainless Steel Tubing, ASTM A269 TP304 Tube, ASME Sa213 TP316 Tubes, Seamless Stainless Steel Tube Manufacturers, ASTM A269 Tubing Wall Thickness, Stainless Steel 316 Tube Price
Stainless steel seamless tube is a steel tube that is perforated from whole round steel and has no welds on the surface. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and pipe jacking. According to the shape of the section, there are two kinds of seamless round tubes and special-shaped seamless tubes. The special-shaped tubes have various complex shapes such as square tubes, oval steel tubes, triangles, hexagons, melon seeds, stars, and finned tubes. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes, and the size can be customized according to your needs.
Stainless Steel Seamless Tube Specifications
| Pipe Specifications | ASTM A213 / ASME SA 213 ASTM A269 / ASME SA 269 ASTM B677 / ASME SB 677 |
| Grade | TP304,TP304L,TP316,TP316L,316Ti TP317,TP317L,TP321,TP310S,TP347,S31254,N08367,N08926,N08904 |
| Pipe Standard | DIN, JIS, ASTM, EN, GB, AISI, ASME |
| Thickness | 0.3mm - 50 mm |
| Seamless Tube Size | 3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN |
| Tube End | Plain End, Beveled End, Treaded Pipe. |
Our ss seamless tube complies with ASTM A213/ASME SA213, ASTM A269/ASME SA269, ASTM B677/ASME SB677 material standards, including grades TP304, TP304L, TP316, TP316L, 316Ti, TP317, TP317L, TP321, TP310S, TP347, S31254, N08367, N08926, N08904. HT PIPE provides you with different types, different materials, and different sizes of seamless stainless steel tubes, quality assurance, beautiful price, looking forward to cooperating with you.
ASME SA213 TP316 tubes have high temperature strength and excellent corrosion resistance. Plus, stainless steel is easy to clean and won't tarnish. Stainless steel is an iron alloy containing at least 10.5% chromium, nickel, molybdenum, titanium, carbon, nitrogen, and copper, alloying elements that improve the strength, formability, and other properties of stainless steel. Different materials of seamless stainless tube provide different degrees of corrosion resistance. Compared with carbon steel, seamless 316 stainless steel tubing has higher low temperature toughness, higher work hardening rate, higher strength and hardness, greater ductility and more attractive appearance.
304 ss seamless tubing is usually made through a process called cold drawing, in which steel wire is drawn through a die, forming it into tubing. This process creates a tube of consistent thickness and diameter, which makes it strong and durable. Stainless steel seamless tubes come in various sizes and thicknesses. ASTM A269 TP304 tubes are mainly used as petroleum geological drilling tubes, cracking tubes for petrochemicals, boiler tubes, bearing tubes, and high-precision structural steel tubes for automobiles, tractors, and aviation.
Chemical Composition of Stainless Steel Seamless Tube
| Grade | UNS | C≤ | Mn | P≤ | S≤ | Si≤ | Cr | Mo | Ni | Cu |
| TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | - | 8.0-11.0 | - |
| TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | - | 8.0-13.0 | - |
| TP316 | S31600 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 2.00-3.00 | 10.0-14.0 | - |
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 2.00-3.00 | 11.0-14.0 | - |
| 316Ti | S31635 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 16.0-18.0 | 2.00-3.00 | 10.0-12.0 | - |
| TP317 | S31700 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 3.0-4.0 | 11.0-14.0 | - |
| TP317L | S31703 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 3.0-4.0 | 11.0-15.0 | - |
| TP321 | S32100 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | - | 9.0-12.0 | - |
| 321H | S32109 | 0.04-0.1 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | - | 9.0-12.0 | - |
| 310 | S31000 | 0.25 | 2 | 0.045 | 0.03 | 1.5 | 24.0-26.0 | 0.75 | 19.0-22.0 | - |
| TP310S | S31008 | 0.08 | 2 | 0.045 | 0.03 | 1 | 24.0-26.0 | 0.75 | 19.0-22.0 | - |
| TP347 | S34700 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | - | 9.0-13.0 | - |
| 254SMO | S31254 | 0.02 | 1 | 0.03 | 0.01 | 0.8 | 19.5-20.5 | 6.0-6.5 | 17.5-18.5 | 0.5-1.0 |
| AL-6XN | N08367 | 0.03 | 2 | 0.04 | 0.03 | 1 | 20.0-22.0 | 6.0-7.0 | 23.5-25.5 | 0.75 |
| F904L | N08904 | 0.02 | 2 | 0.04 | 0.03 | 1 | 19.0-23.0 | 4.0-5.0 | 23.0-28.0 | 1.0-2.0 |
Stainless Steel Seamless Tube Mechanical Properties
| Mechanical properties | Tensile, min, ksi[MPa] | Yield, min, ksi[MPa] | Elongation, %(min) | Hardness, HB(max) |
| TP304 | 75[515] | 30[205] | 35 | 192 |
| TP304L | 70[485] | 25[170] | 35 | 192 |
| TP316 | 75[515] | 30[205] | 35 | 192 |
| TP316L | 70[485] | 25[170] | 35 | 192 |
| 316Ti | 75[515] | 30[205] | 35 | 192 |
| TP317 | 75[515] | 30[205] | 35 | 192 |
| TP317L | 75[515] | 30[205] | 35 | 192 |
| TP321 | 75[515] | 30[205] | 35 | 192 |
| 321H | 75[515] | 30[205] | 35 | 192 |
| TP310 | 75[515] | 30[205] | 35 | 192 |
| TP310S | 75[515] | 30[205] | 35 | 192 |
| TP347 | 75[515] | 30[205] | 35 | 192 |
| S31254 | 98[675] | 43[310] | 35 | 220 |
| N08367 | 100[690] | 45[310] | 30 | 241 |
| N08926 | 94[650] | 43[295] | 35 | 256 |
| N08904 | 71[490] | 31[215] | 35 | 192 |
Stainless Steel Seamless Tube Cold Drawing Production Process
Stainless steel seamless tube cold drawing production process: round tube blank heating→piercing→heading→annealing→pickling→oiling→multi-pass cold drawing→billet tube→heat treatment→straightening→hydraulic test→marking→warehousing.
The rolling method of cold-drawn seamless steel pipe is more complicated than that of hot rolling, and the steps of their production process are basically the same. After the round tube blank is punched, it needs to be heated and annealed. After annealing, use a special acidic liquid for pickling. After pickling, apply oil. Then followed by multiple passes of cold drawing. Heat treatment to improve the mechanical properties of stainless steel pipes, followed by straightening. After the steel pipe is straightened, it is sent to the metal flaw detector by the conveyor belt for internal flaw detection. If there are cracks inside the steel pipe, the problem of bubbles and the like will also be picked out. The length of cold-drawn seamless pipes is generally shorter than that of hot-rolled seamless pipes. In terms of wall thickness, the cold-drawn seamless pipe is more uniform than the hot-rolled seamless pipe, the precision of the cold-drawn pipe is higher, and the surface roughness is better.
The Difference Between Stainless Steel Seamless Pipe and Stainless Steel Seamless Tube
The seamless pipe is always round, and the diameter of the stainless steel seamless pipe is generally larger than that of the stainless steel seamless tube, the wall of the pipe is thicker, and it can withstand higher internal pressure. Pipelines are commonly used to transport liquids, fluids or gases under pressure and they are commonly used to transport fluids or gases in industrial applications such as oil and gas, chemical processing and power generation. Relatively speaking, the pipe is thicker and more expensive.
On the other hand, seamless tubes can be square, rectangular, or round, and stainless steel seamless tubes usually have a smaller diameter and thinner walls than stainless steel seamless pipes. They are usually used to require precise dimensions (the size of the seamless tube is represented by any two of its actual dimensions, namely outer diameter, inner diameter, and wall thickness). Applications with high cleanliness and smooth surfaces, seamless tubes are more used in mechanical applications such as supports, frames and structures, such as medical, pharmaceutical and semiconductor industries. Tubes are thinner and cheaper.
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