Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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Yuhong special steel has been engaged in seamless welded steel pipes of austenitic stainless steel and nickel alloy steel (Hastelloy, Monel alloy, Inconel alloy and Inconel alloy) for more than 25 years, and sells steel pipes every year. More than 80000 tons. Our customers cover more than 45 countries, such as Italy, Britain, Germany, the United States, Canada, Chile, Colombia, Saudi Arabia, South Korea, Poland, Singapore, Australia, France, etc.
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. Our products are of high quality and have very competitive prices in the market.
304 belongs to American Standard austenitic stainless steel. It is a common material in stainless steel, with a density of 7.93 g / cm. It is also called 18 / 8 stainless steel in the industry. High temperature resistance of 800 ℃, with the characteristics of good processing performance and high toughness, it is widely used in industry, furniture decoration industry and food and medical industry.
Our product range in 1.4301 are tubes and 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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| STAINLESS STEEL [SS] 304 / H / L / N / LN | |
|---|---|
| AISI | 304 / 304H / 304L / 304N / 304LN |
| UNS | S30400 / S30409 / S30403 / S30451 / S30453 |
| Werkstoff Nr. | 1.4301 / 1.4306 / 1.4948 / 1.4311 |
| Standard Specification | ASTM A312 / ASME SA312 |
| Dimensional specification | ANSI/ASME B36.19M, ANSI/ASME B36.10M |
| Manufacturing Shapes | Hydraulic, Round, Rectangle, Square, Hex, Honed |
| Manufacturing Techniques | Seamless / 100% X Ray Welded / ERW / EFW/ Welded / Fabricated / CDW/ LSAW/ Seam-Welded / Redrawn |
| Pipe End Types | Plain End, Beveled End, Treaded One End, TBE (Treaded Both Ends) |
| Delivery Condition of SS 304 Pipe | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
| Pipe Schedule Thickness Range | SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS SS 304 Pipe supplier |
| Value Added Services provided by suppliers | Cutting, Beveling, Polishing, Threading, Destructive, Non Destructive, Ultrasonic Testing |
| Inspection and Test Reports | EN 10204 3.1, Mill Test Certificates, Chemical Reports, PMI Test Reports, Mechanical Reports, Third Party Inspection, NABL Approved Lab, Visual Inspection, Destructive Test and Non Destructive Test Reports |
| Marking |
Marked Pipe Sample: ANSI B36.19 ASTM A 312 TP 304 12" NB SCH 40S SEAMLESS HEAT NO. XXXX |
| 304 Stainless Steel Pipe End Types |
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| We Export to | For quick delivery of Stainless Steel 304 Pipe, contact our sales representative in following locations:
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Chemical composition ¹ | ||||||||
| C ≤ % | Si ≤ % | Mn ≤ % | P ≤ % | S ≤ % | Cr % | Mo % | Ni % | V |
| 0.08 | 0.75 | 2.00 | 0.045 | 0.030 | 18.0-20.0 | -- | 8.0-10.5 | |
| Nb | Ti | Al | Co | Cu % | N ≤ % | Fe | ||
| -- | -- | -- | -- | -- | 0.1 | -- | ||
| 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 | ||
