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Inner round and outer hexagonal pipe, also known as profiled steel pipe, is a pipe with a special shape that is round on the inside and hexagonal on the outside. Inner Round Outer Hexagonal Tubes are usually manufactured from high quality steel, such as mild steel and alloy steel. These materials are chosen to ensure the high strength and good corrosion resistance of the tubes. Meanwhile, other materials, such as stainless steel, can also be selected according to different usage environments and requirements.
Unique shape: The unique shape of the inner and outer hexagonal tubes gives them superior performance in many applications, such as good pressure resistance and load carrying capacity.
High strength: due to the use of high-strength steel or alloy materials, inner and outer hexagonal tubes have high tensile strength and hardness.
Good corrosion resistance: high quality steel pipe materials can ensure that the inner and outer hexagonal pipe is not easy to rust and corrosion in the process of use.
Widely used: because of its unique shape and excellent performance, Inner and Outer Hexagonal Pipe is widely used in many fields..
| Type | Grade | Grade | Chemical Component % | |||||||||
| C | Cr | Ni | Mn | P | S | Mo | Si | Cu | N | |||
| Austenitic | 201 | SUS201 | ≤0.15 | 16.00-18.00 | 3.50-5.50 | 5.50-7.50 | ≤0.060 | ≤0.030 | - | ≤1.00 | - | ≤0.25 |
| 202 | SUS202 | ≤0.15 | 17.00-19.00 | 4.00-6.00 | 7.50-10.00 | ≤0.060 | ≤0.030 | - | ≤1.00 | - | ≤0.25 | |
| 301 | 1.4310 | ≤0.15 | 16.00-18.00 | 6.00-8.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | ≤0.10 | |
| 304 | 1.4301 | ≤0.07 | 17.00-19.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | |
| 304L | 1.4307 | ≤0.030 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | |
| 304H | 1.4948 | 0.04-0.10 | 18.00-20.00 | 8.00-10.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | |
| 309 | 1.4828 | ≤0.20 | 22.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | |
| 309S | * | ≤0.08 | 22.00-24.00 | 12.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | |
| 310 | 1.4842 | ≤0.25 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.50 | - | - | |
| 310S | * | ≤0.08 | 24.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.50 | - | - | |
| 314 | 1.4841 | ≤0.25 | 23.00-26.00 | 19.00-22.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | 1.50-3.00 | - | - | |
| 316 | 1.4401 | ≤0.08 | 16.00-18.50 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | - | - | |
| 316L | 1.4404 | ≤0.030 | 16.00-18.00 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | - | - | |
| 316Ti | 1.4571 | ≤0.08 | 16.00-18.00 | 10.00-14.00 | ≤2.00 | ≤0.045 | ≤0.030 | 2.00-3.00 | ≤1.00 | - | 0.1 | |
| 317 | * | ≤0.08 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | - | 0.1 | |
| 317L | 1.4438 | ≤0.030 | 18.00-20.00 | 11.00-15.00 | ≤2.00 | ≤0.045 | ≤0.030 | 3.00-4.00 | ≤1.00 | - | 0.1 | |
| 321 | 1.4541 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | |
| 321H | * | 0.04-0.10 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | |
| 347 | 1.4550 | ≤0.08 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | - | ≤1.00 | - | - | |
| 347H | 1.494 | 0.04-0.10 | 17.00-19.00 | 9.00-12.00 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | - | - | ||
| XM-19 | Nitronic50 | ≤0.06 | 20.50-23.50 | 11.50-13.50 | 4.0-6.0 | ≤0.045 | ≤0.030 | 1.50-3.00 | ≤1.00 | - | 0.2-0.4 | |
| 904L | N08904 | ≤0.02 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | ≤0.045 | ≤0.035 | - | ≤1.00 | - | 0.1 | |
| Duplex | 2205 | S32205 | ≤0.03 | 22.0-23.0 | 4.5-6.5 | ≤2.00 | ≤0.030 | ≤0.020 | 3.0-3.5 | ≤1.00 | - | 0.14-0.20 |
| 2507 | S32750 | ≤0.03 | 24.0-26.0 | 6.0-8.0 | ≤1.20 | ≤0.035 | ≤0.020 | 3.0-3.5 | ≤0.80 | 0.5 | 0.24-0.32 | |
| * | S32760 | ≤0.03 | 24.0-26.0 | 6.0-8.0 | ≤1.00 | ≤0.030 | ≤0.010 | 3.0-4.0 | ≤1.00 | 0.5-1.00 | 0.2-0.3 | |
| 2304 | S32304 | ≤0.03 | 21.5-24.5 | 3.0-5.5 | ≤2.50 | ≤0.040 | ≤0.030 | 0.05-0.6 | ≤1.00 | 0.05-0.6 | 0.05-0.2 | |
| 329 | 1.4460 | ≤0.08 | 23.00-28.00 | 2.00-5.00 | ≤1.00 | ≤0.040 | ≤0.030 | 1.00-2.00 | ≤0.75 | - | - | |
| Ferrite | 409 | S40900 | ≤0.03 | 10.50-11.70 | 0.5 | ≤1.00 | ≤0.040 | ≤0.020 | - | ≤1.00 | - | ≤0.030 |
| 430 | 1Cr17 | ≤0.12 | 16.00-18.00 | - | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤1.00 | - | - | |
| 444 | S44400 | ≤0.025 | 17.50-19.50 | 1 | ≤1.00 | ≤0.040 | ≤0.030 | 1.75-2.5 | ≤1.00 | - | 0.035 | |
| 446 | S44600 | ≤0.20 | 23.00-27.00 | 0.75 | ≤1.50 | ≤0.040 | ≤0.030 | 1.50-2.50 | ≤1.00 | - | ≤0.25 | |
| Martensite | 410 | 1Cr13 | 0.08-0.15 | 11.50-13.50 | 0.75 | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤1.00 | - | - |
| 410S | * | ≤0.080 | 11.50-13.50 | 0.6 | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤1.00 | - | - | |
| 416 | Y1Cr13 | ≤0.15 | 12.00-14.00 | 3.0 | ≤1.25 | ≤0.060 | ≥0.15 | - | ≤1.00 | - | - | |
| 420 | 2Cr13 | ≥0.15 | 12.00-14.00 | - | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤1.00 | - | - | |
| 420J2 | 3Cr13 | 0.26-0.35 | 12.00-14.00 | - | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤1.00 | - | - | |
| 431 | 1Cr17Ni2 | ≤0.20 | 15.00-17.00 | 1.50-2.50 | ≤1.00 | ≤0.040 | ≤0.030 | - | ≤0.80 | - | - | |
| 440C | 11Cr17 | 0.95-1.20 | 16.00-18.00 | - | ≤1.00 | ≤0.040 | ≤0.030 | 0.75 | ≤1.00 | - | - | |
| PH | 630 | 17-4PH | ≤0.07 | 15.00-17.50 | 3.00-5.00 | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | 3.00-5.00 | - |
| 631 | 17-7PH | ≤0.09 | 16.00-18.00 | 6.50-7.50 | ≤1.00 | ≤0.035 | ≤0.030 | - | ≤1.00 | ≤0.50 | - | |
| 632 | 15-5PH | ≤0.09 | 14.00-16.00 | 3.50-5.50 | ≤1.00 | ≤0.035 | ≤0.030 | 2.00-3.00 | ≤1.00 | 2.5-4.5 | - | |
Such as the skeleton of steel structure, support columns and beams of buildings, etc. Its compressive and bending resistance makes the safety and stability of buildings significantly improved.
stainless pipe square rectangle pipe is used to make frames and support structures for various mechanical equipment, such as agricultural machinery, industrial machinery and transportation.
stainless pipe square rectangle pipes can be used for conveying gases, liquids and solid materials with smooth inner wall and regular cross-section, which is favorable for the flow of materials.
because of its good welding performance and aesthetics, stainless pipe square rectangle pipe is widely used as a skeleton material for furniture, such as tables, chairs and bed frames etc.
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