| Standard: | ASTM A312/ASME SA312 | Material: | 254 SMO， UNS S31254， DIN 1.4529 |
|---|---|---|---|
| Type Of Tube: | Straight | Length: | 6m Or Specified Length As Required |
| Appilcation: | Chemical Industry ， Heat Exchanger， Boiler， Offshore， Platform ，Subsea | Delivery Condition: | Solution Annealed & Pickled |
| Test: | Eddy Current Test， Hydrostatic Test， Ultrasonic Test， Grain Size Test ， … | Packing: | Plywood Case/Woven Bag In Bundle |
| High Light: | s31254 duplex stainless steel pipes， 254smo duplex stainless steel pipes， offshore astm a312 stainless steel pipe | ||
ASTM A312/ASME SA312 S31254 (254SMO) Duplex Stainless Steel Pipes
Overview:
S31254 is a high-performance austenitic stainless steel alloy that is also known as 254 SMO. S31254 is a type of pipe made from this alloy that has no welded joints or seams. This type of pipe is often used in applications where high corrosion resistance and strength are required， such as in the chemical processing， oil and gas， and pulp and paper industries. S31254 is also known for its excellent resistance to pitting， crevice corrosion， and stress corrosion cracking， making it a popular choice for harsh environments. The seamless construction of this pipe also provides a smooth interior surface， which can help to reduce the risk of contamination in certain applications.
Specification:
| Specification | ASTM A312 & Its equivalent ASME， DIN & EN Standard |
| Grades | 254SMO， UNS S31254， DIN 1.4529 |
| Type | Straight seamless/welded pipe |
| Outer Diameter | 1/2'' to 48'' or custom size |
| Wall Thickness | SCH 5S to SCH XXS |
| Length | Upto 6 meters or custom cut lengths |
| Delivery Condition | Solution Annealed & Pickled |
| Ends | Plain End， Beveled End |
| Other Testing | Product Analysis， Eddy Current Test， Hydrostatic Test， Ultrasonic Test， Flattening Test， Hardness Test， Tensile Test etc. |
| Dimension | All Pipe & Tube Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
| Packing | Plywood case/Woven bag in bundle |
Chemical Composition:
| Grade | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu |
| UNS S31254 | 0.02 max | 1.00 max | 0.03 max | 0.01 max | 0.08 max | 19.5-20.5 | 17.5-18.5 | 6.0-6.5 | 0.19-0.25 | 0.5-1.0 |
Mechanical Properties:
| Grade | t | Tensile Strength min， ksi (MPa) | Yield Strength min， ksi (MPa) | Elongation in 2 in. or 50mm， min (%) | Heat Treating Temperature， min， °F(°C) |
| UNS S31254 | ·t ≤ 0.187in.(5.00mm) ·t＞0.187in.(5.00mm) | ·98(675) ·95(655) | ·45(310) ·45(310) | 35 | 2100(1150) |
1. Chemical processing: S31254 are used in chemical processing plants for handling corrosive chemicals such as sulfuric acid， hydrochloric acid， and phosphoric acid.
2. Oil and gas: S31254 are used in offshore oil and gas platforms， refineries， and pipelines for transporting corrosive fluids such as crude oil， natural gas， and brine.
3. Pulp and paper: S31254 are used in the pulp and paper industry for handling corrosive chemicals such as bleach， chlorine dioxide， and caustic soda.
4. Desalination: S31254 are used in desalination plants for handling seawater and brine.
5. Food and beverage: S31254 are used in the food and beverage industry for handling corrosive fluids such as fruit juices， dairy products， and beer.
