Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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Yuhong Special Steel has been engaged in the operation of seamless welded pipes and pipes of austenitic stainless steel and nickel alloy steel (Hastelloy, Monel, Inconel, Inconel) for more than 25 years, with an annual sales of more than 80,000 tons of steel pipes and pipes. pipeline. Our customers have covered more than 45 countries including the United States, Canada, Italy, the United Kingdom, Germany, Chile, Colombia, Saudi Arabia, South Korea, Singapore, Australia, Poland, and France.
Compared with traditionally used chromium-nickel steel, marine grade SA 249 TP304 has excellent corrosion resistance, especially during exposure to corrosive compounds. One of the reasons why the stainless steel 316 Erw is considered superior to the chromium-nickel steel grade is the addition of chromium to its alloy. Although similar to austenitic alloy 304, 316 stainless steel welded pipe is more resistant to sea water and salt solutions. Therefore, welding 304 stainless steel pipe is synonymous with marine engineering applications.
In addition, in addition to solutions containing sulfuric acid, ASTM A249 TP304 tubes can also tolerate halides such as chloride, bromide, and iodide. ASTM A249 TP304 welded boiler tubes are also resistant to fatty acids in high temperature environments. In addition, SA-249 TP304 will not lose its mechanical properties when used in a wide temperature range. Because the alloy is non-toxic, A249 TP304 welded pipe is usually used in industries with zero tolerance for pollution. For example, the textile, pharmaceutical and food and beverage industries prefer to use ASME SA 249 TP304 because it has no pollution characteristics.
ASTM A249 304 Welded Pipe can be tested to determine the grain size of this particular alloy grade, in addition to a number of mechanical tests such as flattening, flange, hardness, reverse bending, tension and hydrostatic pressure or non-destructive electrical. In addition to resistance to atmospheric corrosion, the SA 249 Tp 304 equivalent material has good resistance to moderately oxidizing and reducing environments. One of the benefits of using welded 304 stainless steel pipe is that pipes produced from SA 249 Tp 304 are less expensive compared to other stainless steel alloys and thus prove to be an economical choice for a variety of applications. Trade name UNS S30400, Sa-249 Welded Pipe is one of our most popular products.
| ASTM A249 TP304 Standard Specification | Stainless Steel Welded Superheater, Condenser, Hydraulic, Boiler and Heat-Exchanger Tubes |
| Manufacturing Type | ERW / Welded / Fabricated / CDW / DOM / CEW / 100% X Ray Welded |
| Delivery Condition | Annealed and Pickled (AP), Polished, Bright Annealed (BA), Cold Drawn, MF |
| Surface Finish | BA, 2B, No.4, No.1, No.3, No.8, 8K, HL, 2D, 1D, Mirror Polished, 180G, 320G, 400G Satin/ Hairline, 400G, 500G, 600G or 800G Mirror finish ASME SA249 Standard Tubing or Custom Finish as per customer's specification |
| Outside Diameter (OD) | 6 to 304.8 mm |
| Wall Thickness Range | 0.5 to 6 mm |
| Standard | SUS, JIS, AISI, ASTM, GB, DIN, EN |
| Value Added Services |
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| Processing Service | Bending, Welding, Decoiling, Punching, Cutting, Moulding |
| Technique | ASTM A249 Welded Austenitic Steel Cold drawn, Cold rolled, Hot rolled, Extrusion Tube |
| Tolerance |
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| Test Certificate |
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| ASME SA 249 TP 304 Tubing Packaging | Packed in PE Fabric Bundles or ply wooden box wrapped in plastic or Standard seaworthy export packing or as per customers' request |
| Origin | China |
| SA 249 | TENSILE STRESS (MPA) | YIELD STRESS (MPA) | ELONGATION (%) |
|---|---|---|---|
| TP304 | 515 | 205 | 35 |
| SA 249 | C | SI | MN | CR | NI | S | P | FE |
|---|---|---|---|---|---|---|---|---|
| TP304 | 0,08 | 1,0 | 2 | 18 – 20 | 8 – 11 | 0,03 | 0,045 | Bal. |
Application:
Common industrial services (Petroleum, chemical, paper, fertilizer, fabric, aviation and nuclear)
Fluid, gas and oil industry
Heat transmission and pressure service
Construction and ornamental
Boilers and Heat exchangers
Decoration purpose, boiler, auto parts, medical device, food industry, building materials)
