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Credibility ,Super Duplex Stainless Steel Corrosion Resistance, The high chromium and molybdenum content of Super Duplex Stainless Steelmakes it extremely resistant to uniform corrosion by organic acids like formic and acetic acid. Super Duplex also provides excellent resistance to inorganic acids, especially those containing chlorides.
High resistance to chloride stress corrosion cracking
•High Strength
•Superior resistance to chloride pitting and crevice corrosion
•Good general corrosion resistance
•Suggested for applications up to 6000 F
•Low rate of thermal expansion
•Combination of properties given by austenitic and ferritic structure
•Good weldability and workability
2507 S32750 Super Duplex Stainless Steel Applications:
Super Duplex Stainless Steels and their characteristics
(1.4410) UNS S32750 2507 Super Duplex Stainless Steel Elbow 90 Degree
S32205 S31803(1.4462) Duplex Stainless Steel Pipes
S32304 (1.4362) Duplex Stainless Steel Pipes
Sizes | Standard Tolerances | ||||||
Products | OD | Wall | Lengths and/or coils | Grades | OD | Wall | Lengths |
Pressure &Corrosion Tubing Meets or exceeds requirements forwelded Specification: ASTM-A789 |
1/16" (1.59 mm) to 4" (101.6 mm) Metric sizes available |
0.010" (0.25 mm) to 0.220" (5.59 mm) | Random or cut lengths up to 40' (12.2 m) Coils to 1-1/2" OD |
Super Duplex 2507 | <1-1/2" (38.1 mm) ±0.005" (0.13 mm)
1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm)
3-1/2" (88.9 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)
|
±10% | Randoms up to +2" (50.8 mm) Cuts +1/8" (3 mm) -0" Coils to 80,000' (24,384 m) |
Subsea Umbilical Tubing Specifications: ASTM-A789 and ASTM-A790 |
3/8" (9.53 mm) to 1-1/2" (38.1 mm) | 0.039" (0.99 mm) to 0.125" (3.18 mm) | Cut lengths to 60' (18.3 m) Coils to 1-1/2" OD* |
Super Duplex 2507 | ±0.005" (0.127 mm) | ±10% | Coils to 80,000' (24,384 m) |
Tensile Strength | Yield Strength | |||||||||||||
Alloy | UNS | Spec. | psi | MPa | ksi | psi | MPa | ksi | Elongation in 2 in. (min.) % | Grain Size Req. | Max. Hardness | Modulus of Elasticity (x106 psi) | Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) | Thermal Conductivity (BTU-in/ ft2-h-°F) |
Super Duplex 2507 | S32950 | A789,A790 | 100,000 | 690 | 100 | 70,000 | 485 | 70 | 20 | — | 30.5 Rc | — | — | — |
Super Duplex 2507 | S32750 | A789, A790 | 116,000 | 800 | 116 | 80,000 | 550 | 80 | 15 | — | 32 Rc | 27.5 | 7.2 | 98 |
Grade | Super Duplex 2507 |
UNS Designation | S32750 |
Carbon (C) Max. | 0.030 |
Manganese (Mn) Max. | 1.20 |
Phosphorous (P) Max. | 0.035 |
Sulphur (S) Max. | 0.020 |
Silicon (Si) Max. | 0.80 |
Chromium (Cr) | 24.0–26.0 |
Nickel (Ni) | 6.0–8.0 |
Molybdenum (Mo) | 3.0–5.0 |
Nitrogen (N) | 0.24–0.32 |
Iron (Fe) | Bal. |
Copper (Cu) | 0.50 |
Other Elements | — |
Alloy | UNS Designation | Werkstoff NR. | Specifications* |
Super Duplex 2507 | S32750 | 1.4410 | A/SA789, A/SA790 |
*Note: The specifications noted including ASTM, ASME, or other applicable authorities are correct at the time of publication. Other specifications may apply for use of these materials in different applications.
Source: Yaang Pipe Industry Co., Limited (www.yaang.com)Tel No:+86-18267732328 / Email:[email protected]
Address:Longwan District, Wenzhou, Zhejiang Province, China.
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