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Seamless High Pressure Stainless Steel Pipe / Tubing S32304 For Chemical Storage
Super duplex stainless such as duplex is a mixed microstructure of austenite and ferrite which has improved strength over ferritic and austenitic steel grades. The main difference is super duplex has a higher molybdenum and chromium content which gives the material greater corrosion resistance.
Super duplex has the same benefits as its counterpart - it has lower production costs when compared with similar ferritic and austenitic grades and due to the materials increased tensile and yield strength, in many cases this gives the purchaser the welcomed option of purchasing smaller thicknesses without the need to compromise on quality and performance.
1. Standards:
ASTM A789 Standard Specification for Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
2. Application:
Chemical processing, transport and storage,
Oil and Gas exploration and processing equipment,
Marine and other high chloride environments,
Pulp and paper digesters, liquor tanks and paper machines.
3. Ordering Information
Quantity (feet, meters, or number of lengths),
Name of product (seamless or welded tubes)
Grade (S32304)
Size (outside diameter and average wall thickness, unless minimum wall thickness is specified),
Length (specific or random)
Optional requirements (for product analysis; for hydrostatic or nondestructive electric test),
Test report required
Special requirements
4. Chemical Requirements
| Chemical Composition | |||||||||||
| UNS Designation | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu | Others |
| S32304 | 0.03 | 2.5 | 0.04 | 0.04 | 1 | 3.0-5.5 | 21.5-24.5 | 0.05-0.60 | 0.05-0.20 | 0.05-0.60 | … |
5. Tensile and Hardness Requirements
| Tensile and Hardness Requirements | |||||
| UNS Designation | Tensile Strength, min, ksi (Mpa) | Yield Strength, min, ksi (Mpa) | Elongation in 2 in. or 50mm, min, % | Hardness, max. | |
| S32304 | 100 (690) | 65 (450) | 25 | … | … |
| OD 1 in. (25mm) and Under | |||||
| S32304 | 87 (600) | 58 (400) | 25 | 290 | 30 |
| OD over 1 in. (25mm) | |||||
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. | |||
