Nuclear Power TP347 Seamless Stainless Steel Pipe , Custom Stainless Steel Tubing
Alloy 347 (UNS S34700) is columbium stabilized austenitic stainless steel pipe with good general corrosion resistance and somewhat better resistance in strong oxidizing conditions than 321 (UNS S32100). It has excellent resistance to intergranular corrosion after exposure to temperatures in the chromium carbide precipitation range of 800-1500°F (427-816°C). The alloy has good oxidation resistance and creep strength to 1500°F (816°C). It also possesses good low temperature toughness.
1. Standards:
ASTM A312 Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
2. Application:
Refineries; Nuclear Plant; Aerospace Industry; Chemical Fertilizer; Petrochemicals' Oli & Gas and etc.
3. Materials & Manufacture
Pipe shall be either hot finished or cold finished;
The pipe shall be free of scale and contaminating exogenous iron particles. Pickling, blasting, or surface finishing is not mandatory when pipe is bright annealed.
4. Chemical Requirements
Chemical Composition % | ||||||||||
Grade | UNS Designation | C | Mn | P | S | Si | Cr | Ni | Mo | Other |
TP347 | S34700 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-13.0 | … |
5. Tensile Requirements
Tensile Requirements | |||
Grade | UNS Designation | Tensile Strength, min ksi (Mpa) | Yield Strength, min ksi(Mpa) |
TP347 | S34700 | 75 (515) | 30 (205) |
6. Available Size Range
OD | Thickness | ||
mm | inch | mm | SCH |
10.3~914 | 1/8’’~36’’ | 0.5~70 | All |
*If the steel grades and size you are looking for are not listed above, please contact us for further information. |