The ASTM Sa789 specification covers conventional requirements for various stainless steel grades of nominal wall thickness, tubing for services which require general corrosion resistance, along with specific emphasis on resistance to SCC or stress related corrosion cracking. These stainless steels grades such as the Sa 789 UNS S32750 tend to be susceptible to embrittlement if used for a long and continuous periods at elevated temperatures, which would in turn cause loss of toughness and material tensile strength properties. Heat and product analyses on the Sa789 S32750 must be performed wherein that particular stainless steel grade needs to conform to the required chemical composition. For instance, the chemical composition of stainless steel grade UNS S32750 Tube must contain various alloying elements such as manganese, phosphorus, sulphur, silicon, nickel, chromium, molybdenum, carbon, nitrogen, copper, and others. The addition of these elements combined will contribute to the UNS S32750 Pipe alloy’s ability to resist various types of corrosion as well as its tensile strength.
Table of Content
All stainless steel S32750 Tubing needs to be furnished in a heat-treated condition, performed in accordance with the specified temperature as well as quench conditions. When the final heat treatment for alloy grade S32750 Super Duplex Pipe has been performed in a continuous furnace, or in instances when heat treated condition could be obtained directly by method of quenching after a hot forming process, the number of tubes of the same size as well as the same heat from the lot could be determined from the prearranged sizes of these tubes. The stainless steel Super Duplex 2507 UNS S32750 Pipe material has to conform to the prescribed tensile strength as well as the hardness properties as mentioned in the ASTM Sa789 specification . Typically S32750 Pipe Suppliers recommend administering several mechanical tests such as flange test (for welded tubes), tension test, flaring test (for seamless tubes), hardness test, and reverse flattening test to be performed on the stainless steel tubing. Each Saf 2507 UNS S32750 Pipe tube falling under the ASTM Sa789 specification must also be subjected to the non- destructive electric test or the hydrostatic test as well.
The ASTM Sa 790 specification covers several grade of ferritic/austenitic or duplex stainless steel seamless and straight-seam welded pipe. Generally, the pipes covered under specification Sa 790 UNS S32750 have been designed and are meant for general corrosive application, with emphasis specifically placed on resistance to SCC or stress related corrosion cracking. The S32750 Duplex Stainless Steel Pipe as per the specification must be manufactured by either a seamless or an automatic welding process. There is no addition of filler metal in the stainless steel grade Sa 790 S32750 alloys welding operation. Heat analysis shall be performed on the alloy A790 S32750 in order to determine the percentages of the elements specified. Tests such as the Tension tests, hydrostatic tests, hardening tests, flattening tests, and non- destructive electric tests must be administered on the alloy grade S32750 Duplex Stainless Steel Pipe ASTM Sa 790 specification. Further, as per the ASTM Sa 790 specification, this Saf 2507 UNS S32750 Pipe needs to also be produced in such a manner that it conforms to the requirements of the ASTM Sa 790 specification.
ASTM / ASME Standards | ASTM A790 / ASME SA790 |
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EFW Pipe size | 5.0 mm - 1219.2 mm |
Pipe Schedule | SCH5, SCH10, SCH40, STD, SCH80, SCH160 |
Pipe Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
Pipe Form | Round, Square, Hollow, Rectangular, Hydraulic, Straight Pipes Etc. |
Pipe Length | Single Random, Double Random & Cut Length. |
End | Plain End, Beveled End, Treaded. |
Marking | All Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
Material Test Certificates (MTC) | Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2 |
Welded Tube Size | 6.35 mm OD To 152 mm OD |
Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
tubing wall thickness | 0.020" –0.220", (special wall thicknesses available) |
tube Length | Single Random, Double Random, Standard & Cut length |
Tube Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
tube Form | Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or ‘U’ bent Tubes, Hollow, LSAW Tubes Etc. |
Tube Type | Seamless, ERW, EFW, Welded, Fabricated |
End | Plain End, Beveled End, Treaded |
Marking | All tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
UNS S32750 ERW Pipe
Super Duplex S32750 Seamless Pipe
ASTM A790 UNS S32750 Heat Exchanger Tube
SA 790 UNS S32750 Tube
UNS S32750 Annealed Tube
ASME SA790 UNS S32750 Cold Drawn Tubes
ASTM A790 UNS S32750 Pipe
Super Duplex ASME SA 790 S32750 Welded Pipe
Description | Per Unit (INR) | Price in USD | Price in EURO |
---|---|---|---|
Super Duplex Pipe 1/2 Pipe Sch 80, Smls, A790, Uns S 32750 | 1,616 | 21.92 | 18.14 |
Super Duplex - Uns32750 Pipe,seamless3x Sch 40 Mtr 6 | 10,789 | 146.37 | 121.12 |
Element | Composition, % |
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TypeC | 2507 |
Carbon | 0.03 max |
Manganese | 1.20 max |
Phosphorus | 0.035 max |
Sulfur | 0.020 max |
Silicon | 0.80 max |
Nickel | 6.0 - 8.0 |
Chromium | 24.00 - 26.0 |
Molybdenum | 3.0 - 5.0 |
Nitrogen | 0.24 - 0.32 |
Copper | 0.5 |
Property | Value | |
---|---|---|
TypeA | 2507 | |
Tensile Strength, min, ksi, [MPa] | 116 [800] | |
Yield Strength, min, ksi [MPa] | 80 [550] | |
Elongation in 2 in. or 50mm, min, % | 15 | |
Hardness, max | HBW | HRC |
300 | 32 |
Process | Value |
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TypeA | 2507 |
Annealing Temperature °F [°C] | 1880–2060 [1025–1125] |
Quenching | Rapid Cooling in Water |
NPS Designator | Permissible Variations in Outside Diameter | |
---|---|---|
Over In. | Under In. | |
1/8 to 1-1/2, incl | 1/64 (0.015) | 1/32 (0.031) |
Over 1-1/2 to 4, incl | 1/32 (0.031) | 1/32 (0.031) |
Over 4 to 8, incl | 1/16 (0.062) | 1/32 (0.031) |
Over 8 to 18, incl | 3/23 (0.093) | 1/32 (0.031) |
PIPE SIZE | OD IN INCHES | A.S.A. Pipe Schedules | |||||||||||
5s | 5 | 10s | 10 | 40s & Std. | 40 | 60 | 80s & E.H. | 80 | 120 | 160 | DBL E.H. | ||
1/8 | .405 | .035.1383 | .049.1863 | .049.1863 | .068.2447 | 068.2447 | 0.95.3145 | 0.95.3145 | |||||
1/4 | .540 | .049.2570 | .065.3297 | .065.3297 | .088.4248 | 088.4248 | .119.5351 | .119.5351 | |||||
3/8 | .675 | .049.3276 | .065.4235 | .065.4235 | .091.5676 | .091.5676 | .126.7338 | .126.7338 | |||||
1/2 | .840 | .065.5383 | .065.5383 | .083.6710 | .083.6710 | .109.8510 | .109.8510 | .1471.088 | .1471.088 | .1871.304 | .2941.714 | ||
3/4 | 1.050 | .065.6838 | .065.6838 | .083.8572 | .083.8572 | .1131.131 | .1131.131 | .1541.474 | .1541.474 | .2181.937 | .3082.441 | ||
1 | 1.315 | .065.8678 | .065.8678 | .1091.404 | .1091.404 | .1331.679 | .1331.679 | .1792.172 | .1792.172 | .2502.844 | .3583.659 | ||
1-1/4 | 1.660 | .0651.107 | .0651.107 | .1091.806 | .1091.806 | .1402.273 | .1402.273 | .1912.997 | .1912.997 | .2503.765 | .3825.214 | ||
1-1/2 | 1.900 | .0651.274 | .0651.274 | .1092.085 | .1092.085 | .1452.718 | .1452.718 | .2003.631 | .2003.631 | .2814.859 | .4006.408 | ||
2 | 2.375 | .0651.604 | .0651.604 | .1092.638 | .1092.638 | .1543.653 | .1543.653 | .2185.022 | .2185.022 | .3437.444 | .4369.029 | ||
2-1/2 | 2.875 | .0832.475 | .0832.475 | .1203.531 | .1203.531 | .2035.793 | .2035.793 | .2767.661 | .2767.661 | .37510.01 | .55213.70 | ||
3 | 3.500 | .0833.029 | .0833.029 | .1204.332 | .1204.332 | .2167.576 | .2167.576 | .30010.25 | .30010.25 | .43714.32 | .60018.58 | ||
3-1/2 | 4.000 | .0833.472 | .0833.472 | .1204.973 | .1204.973 | .2269.109 | .2269.109 | .31812.51 | .31812.51 | .63622.85 | |||
4 | 4.500 | .0833.915 | .0833.915 | .1205.613 | .1205.613 | .23710.79 | .23710.79 | .28112.66 | .33714.98 | .33714.98 | .43719.01 | .53122.51 | .67427.54 |
4-1/2 | 5.000 | .24712.53 | .35517.61 | .71032.53 | |||||||||
5 | 5.563 | .1096.349 | .1096.349 | .1347.770 | .1347.770 | .25814.62 | .25814.62 | .37520.78 | .37520.78 | .50027.04 | .62532.96 | .75038.55 | |
6 | 6.625 | .1097.585 | .1097.585 | .1349.290 | .1349.290 | .28018.97 | .28018.97 | .43228.57 | .43228.57 | .56236.39 | .71845.30 | .86453.16 | |
7 | 7.625 | .30123.57 | .50038.05 | .87563.08 | |||||||||
Medium Type = Wall thickness in inches Bold Type = Steel weight per foot in pounds |
SDSS ASTM A790 S32750 Pipe | 4 inch Super Duplex UNS S32750 Pipe |
A790 UNS S32750 Stainless Steel Seamless Pipe | A790 UNS S32750 Thick Wall Pipe |
Super Duplex A790 UNS S32750 CDW Pipe | Cold Drawn SDSS ASTM A790 S32750 Seamless Pipe |
Super Duplex UNS S32750 Welded Pipe | 1.4410 S32750 UNS Large Pipe |
A790 UNS S32750 ERW Pipe | Schedule 5S UNS S32750 Duplex Pipe |
1.4410 S32750 UNS EFW Pipe | Schedule 40 ASTM A790 S32750 SDSS Pipe |
UNS S32750 Duplex SMLS Pipe | Super Duplex SS UNS S32750 ASTM A790 Polished Pipe |
Capillary SDSS ASTM A790 S32750 Thin Pipe | High pressure A790 UNS S32750 Stainless Steel Pipe |
ASTM A790 S32750 SDSS Hollow Pipe | ASTM A790 UNS S32750 Alloy Electropolished Pipe |
Saf 2507 UNS S32750 Custom Pipe | SDSS ASTM A790 S32750 Capillary Pipe |
Super Duplex SS UNS S32750 ASTM A790 Round Pipe | SS UNS S32750 ASTM A790 Exhaust Pipe |
ASTM A790 UNS S32750 Alloy Square Pipe | SDSS UNS S32750 Thin Wall Pipe |
SS UNS S32750 ASTM A790 Rectangular Pipe | Small diameter Super Duplex A790 S32750 pipe |
SDSS UNS S32750 Hexagonal Pipe | Duplex UNS S32750 ASTM A790 Pipe material |
Super Duplex A790 S32750 Bush Hex Pipe | Super Duplex ASTM A790 S32750 Clad Pipe |
Duplex UNS S32750 ASTM A790 Fabricated Pipe | Saf 2507 UNS S32750 Annealed pipe |
Super Duplex ASTM A790 S32750 Beveled End Pipe | Super Duplex A790 UNS S32750 Rectangle Pipe |
A790 UNS S32750 Stainless Steel Cold Drawn Pipe | Cold Drawn SDSS ASTM A790 S32750 Welded Pipe |
1/8" IPS(.405"O. D.) | 3 1/2" IPS( 4.000"O. D.) |
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SCH 40, 80 | SCH 10, 40, 80, 160, XXH |
1/4" IPS(.540"O. D.) | 4" IPS(4.500"O. D.) |
SCH 10, 40, 80 | SCH 10, 40, 80, 160, XXH |
3/8" IPS(.675"O. D.) | 5" IPS( 5.563"O. D.) |
SCH 10, 40, 80 | SCH 10, 40, 80, 160, XXH |
1/2" IPS(.840"O. D.) | 6" IPS(6.625"O. D.) |
SCH 5, 10, 40, 80, 160, XXH | SCH 5, 10, 40, 80, 120, 160, XXH |
3/4" IPS(1.050"O. D.) | 8 ” IPS(8.625"O. D.) |
SCH 10, 40, 80, 160, XXH | SCH 5, 10, 40, 80, 120, 160, XXH |
1" IPS:(1.315′O. D.) | 10" IPS(10.750"O. D.) |
SCH 5, 10, 40, 80, 160, XXH | SCH 10, 20, 40, 80 (.500), TRUE 80(.500) |
1-1/4" IPS(1.660"O. D.) | 12" IPS(12.750"O. D.) |
SCH 10, 40, 80, 160, XXH | SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500) |
1-1/2" IPS(1.900"O. D.) | 14" IPS(14.000"O. D.) |
SCH 10, 40, 80, 160, XXH | SCH10 (.188), SCH40 (.375) |
2" IPS(2.375"O. D.) | 16" IPS(16.000"O. D.) |
SCH 10, 40, 80, 160, XXH | SCH10(.188), SCH40(.375) |
2 1/2" IPS(2.875"O. D.) | 18" IPS (18.000"O. D.) |
SCH 10, 40, 80, 160, XXH | SCH-40 (.375) |
3" IPS( 3.500"O. D.) | |
SCH 5, 10, 40, 80, 160, XXH |