Product Specification and Size :
1):Standard: ASTM A312, ASTM A269, ASTM A213 etc.
2):Outer Diameter: 8mm-219mm
3):Wall thickness: 0.25mm-140mm
4):Grade: TP304, TP304L, TP316L, TP321, 904L etc.
5):Dimension according to ANSI B36.10 & B36.19
DESCRIPTION OF STAINLESS STEEL THICK TUBES
We have a large stock of high quality standard and special grade Stainless steel thick tubes and welded stainless steel tubes. Our 300 series has enhanced strength and corrosion resistance, can be used in harsh environments, and can meet the requirements of your stainless steel pipe project. ASTM standard specifications include A213 seamless pipes, A269 welded pipes, A511 seamless mechanical pipes, and A554 decorative pipes, and have annealing and pickling and bright annealing manufacturing options. Pipe cutting and polishing services can be customized according to job requirements.
The main difference between stainless steel tubes and stainless steel tubes is the size in which they are formed. Although the pipes follow the Nominal Pipe Size (NPS) and piping plans, stainless steel pipes have exact dimensions. For example, a ½ “tube has an outer diameter of 0.840” regardless of wall thickness (attached table). On the other hand, a ½ “tube has a ½” outside diameter, regardless of wall thickness.
Chemical Composition of Stainless steel thick tubes
| Chemical Composition | |||||||
| Grade | C | Si | Mn | P | S | Ni | Cr |
| 201 | 0.15 | 1.00 | 5.50-7.50 | 0.06 | 0.03 | 3.50-5.50 | 16.00-18.00 |
| 202 | 0.15 | 1.00 | 7.50-10.00 | 0.06 | 0.03 | 4.00-6.00 | 17.00-19.00 |
| 304 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-11.00 | 18.00-20.00 |
| 304L | 0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-12.00 | 18.00-20.00 |
| 309 | 0.20 | 1.00 | 2.00 | 0.045 | 0.03 | 12.00-15.00 | 22.00-24.00 |
| 309S | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 12.00-15.00 | 22.00-24.00 |
| 310 | 0.25 | 1.50 | 2.00 | 0.045 | 0.03 | 19.00-22.00 | 24.00-26.00 |
| 310S | 0.08 | 1.50 | 2.00 | 0.035 | 0.03 | 19.00-22.00 | 24.00-26.00 |
| 316 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 10.00-14.00 | 16.00-18.00 |
| 316L | 0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 10.00-14.00 | 16.00-18.00 |
| 316Ti | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 10.00-14.00 | 16.00-18.00 |
| 410 | 0.15 | 1.00 | 1.00 | 0.04 | 0.03 | 0.60 | 11.50-13.50 |
| 430 | 0.12 | 0.75 | 1.00 | 0.04 | 0.03 | 0.60 | 16.00-18.00 |
The tubing blast chart will determine the correct wall thickness based on your working pressure. For example, if you need a 1/4 inch stainless steel tube suitable for 8000psi working pressure, you need to use a wall thickness of 0.065. The pipeline burst chart shows a burst pressure of 39,000 psi, which is then divided by the factory safety factor of 4, which yields 9,750 psi, which is the maximum allowable working pressure. The figure below shows the dimensions of a 1/4 “X .065” tube with an outside diameter of 1/4 “and a wall thickness of .065”. Unlike pipes with nominal outside diameter dimensions, the outer diameter of stainless steel pipes is accurate. In addition, unlike pipes with wall thicknesses specified through the pipe program, stainless steel pipes have wall thicknesses in inches.
