Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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A312 Tp304 tube is pushed or pulled to form a shape usually formed from a round billet of raw material. It is more corrosion resistant than ordinary 304 stainless steel pipe. Our 304 stainless steel seamless tube has a low carbon content, making it highly weldable and formable. Stainless steel 304 welded pipe can be in different shapes such as SS 304 round pipe or SS 304 square pipe. SS 304 Erw tube is used for long service chemical and industrial applications. There are different schedules such as the SS 304 Sch 40 pipeline. Our products are of high quality and have very competitive prices in the market.
If you are looking for one of the reliable 304 stainless steel pipe suppliers who can supply mirror polished pipe flat/beveled/threaded material, please check our customer and price list. YUHONG GROUP supplies SS 304 Seamless Pipe from 6" NB to 120" Nb, including all types of seamless, ERW, welded, fabricated and grooved. All our materials are ASTM A312, A249 and ASME SA 312 International Specifications. We can supply 304 steel pipe thickness from 1.2mm to 2mm. Pipe lengths are standard sizes 3m, 6m and 10m. But we are one of the suppliers that offers grade 304 cut-to-length pipe, saving you cost and avoiding Waste. YUHONG GROUP is a SS 304 pipe supplier providing pipes with all surface finishes such as polished, annealed, anodized, sandblasted, brushed, polished, bright annealed, cold drawn, etc. We can also supply SS in 182 - 320 grit Pipe Polishing Services. You can contact us for a complete price list and product list.
304 belongs to American Standard austenitic stainless steel. It is a common material in stainless steel with a density of 7.93 g/cm. Also known in the industry as 18/8 stainless steel. High temperature resistance of 800 ℃, has the characteristics of good processing performance and high toughness, and is widely used in industry, furniture decoration industry and food and medical industry.
Our 1.4301 product range includes pipes, fittings and flanges, accessories.
Some of the quality tests carried out by our quality department includes:
| Corrosion Test | Only when specifically requested by the customer |
| Chemical Analysis | Conduct tests according to required quality standards |
| Destructive / Mechanical Testing | Tensile | Hardness | Flattening | Flare | Flange |
| Reverse-bend and Re. flat tests | Fully compliant with relevant standards and ASTM A-450 and A-530 specifications, ensuring trouble-free extension, welding and use on the client side |
| Eddy Current Testing | Done to detect homogeneities in subsurface by using Digital Flaw-mark Testing System |
| Hydrostatic Testing | 100% hydrostatic test, check pipe leaks according to ASTM A 450 specification, the maximum pressure we can support is 20Mpa/7s. |
| Air Under Pressure Test | Check for any signs of air leakage |
| Visual Inspection | After passivation, each tube is subjected to a thorough visual inspection by trained personnel to detect surface defects and other defects |
Supplementary Testing : In addition to the above tests, we also carry out supplementary tests on finished products. Tests carried out in this regard include:
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Chemical composition ¹ | ||||||||
| C ≤ % | Si ≤ % | Mn ≤ % | P ≤ % | S ≤ % | Cr % | Mo % | Ni % | V |
| 0.08 | 1.00 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | -- | -- | |
| Nb | Ti | Al | Co | Cu % | N ≤ % | Fe | ||
| -- | -- | -- | -- | -- | -- | -- | ||
| ¹ in accordance with Key to Steel 2001 | ||||||||
Special characteristics | ||
| Temperature range: | Density kg/dm³ | Hardness (HB) |
|---|---|---|
| pressure bomb/pressure vessel - 60°C bis 400°C | 7,93 | ≤ 230 |
| excellent stability against pitting corrosion, stress corrosion and intergranular corrosion | ||
