What is S30408 material pipe?
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What is S30408 pipe?
S30408 pipe is made from 304 stainless steel. 304 stainless steel is an austenitic stainless steel alloy with excellent corrosion resistance, high strength, and workability. The S30408 designation uses the Unified Numbering System (UNS) grade, which is functionally equivalent to the widely recognized 304 grade. The latter typically contains at least 18% chromium and 8% nickel and can be fabricated into a variety of practical product forms, including both seamless and welded.
What is S30408 material equivalent to?
S30408 is the designation for 304 stainless steel under Chinese national standards, and it is equivalent to UNS S30400 (the American Unified Numbering System), EN 1.4301 (European standard), or JIS SUS304 (Japanese standard), among others.
Chemical composition difference between S30408 and 304
| Default name | UNS Code | Note | W | Mn | P | s | Yes | Cr | No | N | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| American Standard | ASTM A240M-15a | S30400 | 304 | 0.07 | 2:00 | 0.045 | 0.03 | 0.751 | 7.5-19.58 | 8.0-10.5 | .. |
| Chinese pattern | GB/T24511-2017 | S30408 | 06Cr19Ni10 | 0.08 | 2:00 | 0.035 | 0.015 | 0.751 | 8.0-20.08 | 8.0-10.5 | 0.1 |
SS S30408 pipe mechanical properties
Mechanical properties of austenitic steel after solution treatment at room temperature
| Numeric code | S30408 | ||
| Note | 06Cr19Ni10 | ||
| Specified plastic extension force RPo. 2/MPa | No less than | 220 | |
| Specified plastic extension strength RP1.0/MPa | 250 | ||
| Tensile strength Rm/MPa | 520 | ||
| Elongation after fracture A% | 40 | ||
| Hardness value | HBW | No greater than | 201 |
| HRB | 92 | ||
| High voltage | 210 | ||
Mechanical Test Requirements
| Yield strength | Tensile strength | Elongation by 2 in or 50 mm. min | Hardness.max. | |
|---|---|---|---|---|
| MPa | MPa | % | BrinellHBW | Rockwell |
| 205 | 515 | 40 | 201 | 92 HRBW |
S30408 stainless steel pipe corrosion resistance
S30408 stainless steel pipe has excellent corrosion resistance. Due to its low carbon content (≤0.08%), it can resist intergranular corrosion without post-weld heat treatment after welding. It can maintain its performance in environments with chloride ion concentrations as high as 200 mg/L at room temperature. According to the ASTM G48 test standard, its critical pitting temperature (CPT) is ≥50°C and its critical crevice corrosion temperature (CCT) is ≥40°C. It is suitable for applications requiring reliable corrosion protection, such as food processing, chemical transportation, and construction.
Applications
Due to its versatility, high corrosion resistance, and good mechanical properties, S30408 is used in a variety of applications, including: Kitchen equipment and sinks, Food processing equipment, Architectural trim, Chemical containers, and Automotive and aerospace parts.
Is S30408 material pipe magnetic?
No, S30408 (304 stainless steel) is not inherently magnetic, as it is an austenitic stainless steel, which is non-magnetic in its annealed (soft) state. However, it can become weakly magnetic if subjected to processes like cold working, welding, or improper heat treatment, as these can induce a transformation to a martensitic structure, making it partially magnetic.
If you have a project need for S30408 stainless steel bright annealed tubing, we welcome your order. GNEE has a large inventory of popular products for you to choose from. We offer a variety of practical product forms, including seamless and welded. For detailed chemical composition and free samples, please contact our factory today. We offer competitive pricing and excellent service.Email: info@gneestainless.com
