Spezilla Tube Co., Ltd. (Shanghai)
Spezilla Tube Co., Ltd. Excellence in Stainless Steel Tubing
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ASME SA789 2507 UNS S32750 Pipe,Supler Duplex Stainless Steel Tube
2507 Super Duplex Stainless Steel Pipe UNS S32750 Super Duplex Tube
ASTM A789 ASME SA 789 2507 UNS S32750 , 2507 Super Duplex Pipe is super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as
chemical process, petrochemical, and seawater equipment. The steel has excellent resistance to chloride stress corrosion cracking,
high thermal conductivity, and a low coefficient of thermal expansion.
| Item | Duplex Stainless Steel Tube/Stainless Steel Tubing/Stainless Steel Pipe | |||||
| Standard | ASTM A249/A213/A269/A554/A270/A312/A268/A778/A790/A789/A511 | |||||
| A335/A376/B161/B163/B167/B338/B668/B677/B622 | ||||||
| DIN11850/17456/17458/SMS/ISO2037/ISO1127/EN10217-7 EN 10217-7 | ||||||
| Grade | Austenite:201/202/301/304/304L/304N/304LN/309S/310S/316/316L/316TI | |||||
| Ferritic:409,409L,410,420,430,431,439,440,441,444 | ||||||
| Duplex stainless steel:S31803,S32205,S31500,S32550,S32304,S32750 | ||||||
| Nickel Alloy:Hastelloy,Inconel,Monel Alloy | ||||||
| Special Stainless Steel:904L,347/347H,317/317L,316Ti,254Mo | ||||||
| OD | 3.175mm-1016mm | |||||
| Thickness | 0.5-20mm | |||||
| Length | 1000-12000mm or as required | |||||
| Tolerance | a) Outer Diameter:according to standards or as required. | |||||
| b) Thickness: +/- 10% or as required. | ||||||
| c) Length: -0 +5mm | ||||||
| Finish | Polished,MF,AP, BA(Bright&Annealed) or as required | |||||
| Application | Boiler, Heat Exchanger, Construction, Pharmacy, Power, Petrochemical | |||||
| Machinery, Oil, Gas, and Auto industry... | ||||||
| Test | Flattening test, Bend test, Hydrostatic, Eddy Current, Hardness, | |||||
| Heat Treatment, Flaring test, I.C.test, | ||||||
| Certification | ISO EN 1024 3.1/ 3.1B/ 3.2, PED, DNV, TUV. | |||||
| Package | Plywood Cases or as required. | |||||
| Lead Time | 7-30 days depend on quantity. | |||||
Tube Size
| MINAL DIAMETER NPS | OUTSIDE DIAMETER(MM) | SCH-5S WALL THICKNESS(MM) | SCH-10S WALL THICKNESS(MM) | SSCH-40S WALL THICKNESS(MM) |
|---|---|---|---|---|
| 1/4 | 13.72 | 1.65 | 2.24 | |
| 3/8 | 17.15 | 1.65 | 2.31 | |
| 1/2 | 21.34 | 1.65 | 2.11 | 2.77 |
| 3/4 | 26.67 | 1.65 | 2.11 | 2.87 |
| 1 | 33.40 | 1.65 | 2.77 | 3.38 |
| 1 1/4 | 42.16 | 1.65 | 2.77 | 3.56 |
| 1 1/2 | 48.26 | 1.65 | 2.77 | 3.68 |
| 2 | 60.3 | 1.65 | 2.77 | 3.91 |
| 2 1/2 | 73.03 | 2.11 | 3.05 | 5.16 |
| 3 | 88.90 | 2.11 | 3.05 | 5.49 |
| 3 1/2 | 101.60 | 2.11 | 3.05 | 5.74 |
| 4 | 114.30 | 2.11 | 3.05 | 6.02 |
| 5 | 141.30 | 2.77 | 3.40 | 6.55 |
| 6 | 168.28 | 2.77 | 3.40 | 7.11 |
| 8 | 219.08 | 2.77 | 3.76 | 8.18 |
| 10 | 273.05 | 3.40 | 4.19 | 9.27 |
| 12 | 323.85 | 3.96 | 4.57 | 9.53 |
| 14 | 355.60 | 3.96 | 4.78 | 9.53 |
| 16 | 406.40 | 4.19 | 4.78 | 9.53 |
| 18 | 457.20 | 4.19 | 4.78 | 9.53 |
| 20 | 508.00 | 4.78 | 5.54 | 9.53 |
| 22 | 558.80 | 4.78 | 5.54 | |
| 24 | 609.60 | 5.54 | 6.35 | 9.53 |
| 30 | 762.00 | 6.35 | 7.92 | |
| 32 | 80 | 812.8 | 2032.0 | (Thickness):6.35~30mm Nominal diameter and wall thickness subject to the approval of vendor and purchaser | ||
ASTM A789 S32750 2507 Pipe Chemical Composition
| C % | Si % | Mn % | P % | S % | Cr % | Ni % | Mo % | N % | Cu % |
| 0.03 max | 0.8 max | 1.2 max | 0.035 max | 0.02 max | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | 0.50 max |
