Capillary Tube Chemical Composition
| Elements | 304L (wt%) UNS S30403 | 304 (wt%) UNS S30400 | 316L (wt%) UNS S31603 | 316 (wt%) UNS S31600 |
|---|---|---|---|---|
| (C) Carbon, max | 00.035 | 00.08 | 00.035 | 00.08 |
| (Mn) Manganese, max | 2 | 2 | 2 | 2 |
| (P) Phosphorus, max | 00.045 | 00.045 | 00.045 | 00.045 |
| (S) Sulfur, max | 00.03 | 00.03 | 00.03 | 00.03 |
| (Si) Silicon, max | 1 | 1 | 1 | 1 |
| (Ni) Nickel | 8.0 - 12.0 | 8.0 - 11.0 | 10.0 - 14.0 | 10.0 - 14.0 |
| (Cr) Chromium | 18.0 - 20.0 | 18.0 - 20.0 | 16.0 - 18.0 | 16.0 - 18.0 |
| (Mo) Molybdenum | N/A | N/A | 2.0 - 3.0 | 2.0 - 3.0 |
| (Fe) Iron | Bal. | Bal. | Bal. | Bal. |
| (Cu) Copper | N/A | N/A | N/A | N/A |
| (N) Nitrogen | N/A | N/A | N/A | N/A |
| Grade | Material |
|---|---|
| 303 | Stainless Steel Bar Stock: High in Corrosion resistance: Typically used in automatic machining operations. |
| 304 | Stainless Steel Tubing: Good in Corrosion resistance: Most widely used stainless steel with good formability and can be readily welded. |
| 304L | Stainless Steel Tubing: Good in Corrosion resistance: Offers better weld-ability than standard 304 Stainless Steel. |
| 316 | Stainless Steel Tubing: Better in Corrosion resistance: Offers higher strength at higher temperature than 304 Stainless Steel. Often used for pumps, valves, marine applications, and chemical equipment. |
| 316L | Stainless Steel Tubing: Better in Corrosion resistance:Offers better weld-ability than standard 316 Stainless Steel. |
| 321 | Stainless Steel Tubing: Good in Corrosion resistance: Most similar to 304 Stainless Steel but with the addition of Titanium making it an excellent choice for prolonged, high temperature applications. |
| 347 | Stainless Steel Tubing: High in Corrosion resistance: High resistance to prolonged heat and corrosion applications. This is well suited for power generation and engine applications. |
| 430 | Stainless Steel Tubing: Good in Corrosion resistance:Combines good corrosion and heat resistance with good mechanical properties. Oxidation resistant to 1500 deg F and is used in many industrial and consumer products. |