| Type: | Stainless Steel Pipes |
|---|---|
| Standard: | ASTM |
| Grade: | Duplex |
| Certification: | ISO, ASTM, GB, EN, DIN |
| Shape: | Round |
| Technique: | Cold Rolled |
| Customization: |
|---|
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Grade |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
N |
Cu |
|
S32550 |
≤0.04 |
≤1.5 |
≤0.040 |
≤0.03 |
≤1.0 |
4.5-6.5 |
24.0-27.0 |
2.9-3.9 |
0.10-0.25 |
1.5-2.5 |
|
Grade |
Tensile Strength ksi(MPa) |
Yield Strength ksi (MPa) |
Elongation (%) |
Hardness HBW |
Hardness HRC |
|
S32550 |
≥110(760) |
≥80(550) |
≥15 |
≤297 |
≤31 |
UNS S32550 materials are used in the paper, chemical, nitrogen, and aviation industries as well as in power engineering for screws, shafts, sleeves, fittings, installations and pipelines, pump parts, tanks for chemicals, heat exchangers, radiator parts and aircraft constructions.
Super duplex UNS S32550 is a stainless steel grade that offers excellent corrosion resistance in a wide variety of corrosive chemicals including sulphuric, phosphoric and nitric acids. In Seawater and other chloride containing environments 32550 also provides outstanding resistance to pitting and crevice corrosion, with Critical Pitting Temperature exceeding 50°C.
RESISTANCE TO CORROSION
Excellent ductility and impact strength at both ambient and sub-zero temperatures combine with a high resistance to abrasion, erosion and cavitation erosion.
UNS S32550 Displays superior corrosion resistance in most media. Also, 2550 typically out performs duplex alloy 2205. It performs well in sulphuric, phosphoric, and nitric and shows excellent resistance to organic acids such as acetic and formic acid. Highly reducing media should be avoided.
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