What is ASTM A789 ASME SA 789 SAF2507 UNS S32750 (EN 10216–5 1.4410) Stainless Steel?
ASTM A789 ASME SA 789 SAF2507 UNS S32750 (EN 10216–5 1.4410) Stainless Steel 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.

ASTM A789 Super Duplex Steel SAF 2507 Tube Specification :
Dimension : ASTM, ASME and API
ASTM Specification : ASTM A790 / ASME SA790, ASTM A789 / ASME SA A789
ASTM A789 Super Duplex Steel SAF 2507 Tube Size : 1/2″NB TO 12 “NB IN
Seamless Pipe & Tube Size : 1/2” NB – 8” NB
Welded Pipe & Tube Size : 6” NB – 24” NB
Outer Diameter : 6.0-630mm
Thickness : 0.5-45mm
Schedule : SCH20, SCH30, SCH40, STD, SCH80
Type : Seamless / ERW / Welded / Fabricated / CDW
Form : Round Pipe/Tube, Square Pipe/Tube, Rectangular Pipe/Tube, Coiled Tube, “U” Shape, Pan Cake Coils, Hydraulic Tube
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Threaded
ASTM A789-ASME SA789 SAF2507 Equivalent Material
| Alloy | UNS Designation | Werkstoff NR. | Specifications | Afnor | Ibanga | DIN | IsiNgesi | I-SS |
| 2507 | S32750 | 1.4410 | A/SA789, A/SA790 | Z3 CN 25.06 Az | F53 | X 2 Cr Ni MoN 25.7.4 | 1.4410 | 2328 |
ASTM A789 S32750 (SAF2507) Stainless Steel Tubes Chemical Composition
| C % | Si % | Mn % | P % | S % | Cr % | Ni % | Mo % | N % | Cu % |
| 0.03 max | 0.8 max | 1.2 max | 0.035 ubuninzi | 0.02 max | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | 0.50 max |
Ityhubhu yentsimbi ye-Duplex ye-ASTM A789-ASME SA789 SAF2507 Iimpawu zoomatshini
| 0.2% Proof Stress (N/mm2 ) [ksi] minimum | 550[79.8] |
| Ultimate Tensile Strength (N/mm2) [ksi] minimum | 800 [116] |
| Elongation (%) minimum | 25 |
| ardness (HBN) | 270 max |
| Reduction of Cross Section Area (%) | 45 |
| Charpy V-notch Impact at ambient Temp (J) [ft.lb] | 80min [59min] |
| Charpy V-notch Impact at -46°C (J) [ft.lb] | 45av, 35min [33av, 25.8min] |
Ityhubhu yentsimbi ye-Duplex ye-ASTM A789-ASME SA789 SAF2507 Iimpawu Zomzimba
| Density (Kg.m-1) | 7810 |
| Magnetic Permeability | 33 |
| Young’s Modulus (N/mm2) | 199 x 103 |
| Specific Heat, 20°C (J.Kg-1.°K-1) | 475 |
| Fracture Toughness, Kq (MPa.m) | 475 |
| Specific Electrical Resistance, 20°C (µO.m) | 0.80 |
| Thermal conductivity, 20°C (W.m-1.°K-1) | 14.2 |
| Mean coefficient of thermal expansion, 20-100°C (°K-1) | 11.1 x 10-6 |
Pressure Rating of Super Duplex 2507 Tube
| Tube O.D. (In.) | Wall Thickness Of Pipe (Inches) | |||||||
| .028 | .035 | .049 | .065 | .083 | .095 | .109 | .120 | |
| Working Pressure (Psig) | ||||||||
| 1/8 | 7900 | 10100 | ||||||
| 1/4 | 3700 | 4800 | 7000 | 9500 | ||||
| 5/16 | 3700 | 5400 | 7300 | |||||
| 3/8 | 3100 | 4400 | 6100 | |||||
| 1/2 | 2300 | 3200 | 4400 | |||||
| 3/4 | 2200 | 3000 | 4000 | 4600 | ||||
| 1 | 2200 | 2900 | 3400 | 3900 | 4300 | |||
Super Duplex 2507 Tubing Size chart
| Udonga | Sizes ( O.D.) |
| .010 | 1/16″ , 1/8″ , 3/16″ |
| .020 | 1/16″ , 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ |
| .012 | I-intshi enye kwishumi elinesibhozo |
| .016 | 1/8″ , 3/16″ |
| .028 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 3/4″ , 1″ , 1 1/2″ , 2″ |
| .035 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 7/16″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .049 | 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/8″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .065 | 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 3/4″ , 2″ , 2 1/2″ , 3″ |
| .083 | 1/4″ , 3/8″ , 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 7/8″ , 2″ , 2 1/2″ ,3″ |
| .095 | 1/2″ , 5/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .109 | 1/2″ , 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .120 | 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 2 1/4″ , 2 1/2″ , 3″ |
| .125 | 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 3″ , 3 1/4″ |
| .134 | Inci enye |
| .250 | I-intshi ezintathu |
| .375 | I-intshi ezintathu enesiqingatha |
Standard Tolerances of UNS S32750 Tube
Ubungakanani | Standard Tolerances | |||||
| Ifomu | Udonga | Ukusuka ngaphandle | Length and/or coils | Ukusuka ngaphandle | Lengths | Udonga |
| Subsea Umbilical Tubing (ASTM A789 & ASTM A790) | 0.039″ to 0.125″ | 3/8″ to 1-1/2″ | Cut lengths to 60′ Coils to 1-1/2″ OD* | ±0.005″ | Coils to 80,000′ (24,384 m) | ±10% |
| Pressure & Corrosion Tubing (ASTM A789) | 0.010″ – 0.220″ | 1/16″ – 4″ | Cut lengths up – 40′ Coils to 1-1/2″ OD | <1-1/2″ ±0.005″ 1-1/2″ to 3″ ±0.010″ 3-1/2″to 4″ ±0.015″ | Random Upto +2″ Cuts +1/8″ -0″ Coils to 80,000′ | ±10 |
Processing
Hot Forming
2507 should be hot worked between 1875 F and 2250 F. This should be followed by a solution anneal at 1925F minimum and a rapid air or water quench.
Cold Forming
Uninzi lweendlela eziqhelekileyo zokubumba intsimbi engatyiwayo zingasetyenziswa kumsebenzi obandayo we-2507. Le alloy inamandla aphezulu okuncipha kunye nokuguquguquka okuphantsi kuneentsimbi ze-austenitic, ngoko ke abasebenzi bokubumba banokufumanisa ukuba kufuneka amandla aphezulu okubumba, i-radius yokugoba eyandisiweyo, kunye nendawo eyandisiweyo yokubuyela emva (springback). Iinkqubo ezifana noku-drawa okunzulu, uku-stretch forming, kunye nezinye ezifanayo kunzima ngakumbi ukuzisebenzisa kwi-2507 kunakwintsimbi engatyiwayo ye-austenitic. Xa ukubumba kufuna i-deformation ebandayo engaphezulu kwe-10%, kuyacetyiswa ukuba kusetyenziswe i-solution anneal kunye ne-quench.
Unyango lobushushu
2507 should be solution annealed and quenched after either hot or cold forming. Solution annealing should be done at a minimum of 1925 F. Annealing should be followed immediately by a rapid air or water quench. To obtain maximum corrosion resistance, heat treated products should be pickled and rinsed.
Izicelo
Electronics
Transport and traffic
Pulp and paper industry
Medicine
Fertilizers
Valve & Pumps
Petrochemical
Architecture and construction
Aerospace
Nuclear Power
Energy industry
Chemicals industry
Nickel Alloy in Pulp and Paper
Motor industry
Food and drink
Ipayipi yentsimbi engatyiwayo engu-304L Ipayipi yentsimbi engatyiwayo engamthungo yohlobo lwe-304L Iipayipi zentsimbi engatyiwayo ze-310S 321 Intsimbi engatyiwayo Umbhobho wentsimbi engatyiwayo we-904L Iityhubhu zentsimbi engatyiwayo i-904L ipayipi yentsimbi engatyiwayo engu-2205 ipayipi yentsimbi engatyiwayo engamthungo engu-2205 ipayipi yentsimbi engatyiwayo ye-duplex engu-2507 ipayipi yentsimbi engatyiwayo engu-2507 ipayipi yentsimbi engatyiwayo engamthungo engu-2507 2520 iityhubhu zentsimbi engatyiwayo Ipayipi yentsimbi engatyiwayo ye-AStm A312 Iinkcukacha zePayipi yeNtsimbi engatyiwayo i-ASTM A312 Ipayipi yentsimbi engatyiwayo i-ASTM A312 engenathungo ASTM A312 TP304 ipayipi yentsimbi engatyiwayo engenamthungo Ipayipi yentsimbi engatyiwayo ye-ASTM A312 TP316L Ipayipi yentsimbi engatyiwayo i-ASTM A554 Igeyiji yocingo yaseBirmingham Ubunzima bomzimba obuseleyo Iisayizi zeBwg ibhobhu ye-bwg ipayipi yentsimbi engatyiwayo ye-duplex Umlinganiselo wobunzima bomzimba Umbhobho wokutshintshisa ubushushu Izifakelo zocinezelo zentsimbi engatyiwayo ixabiso ipayipi yezempilo engenamthungo ipayipi yentsimbi engatyiwayo yezempilo iityhubhu zentsimbi engatyiwayo ezisempilweni Itshathi yobungakanani Umbhobho wentsimbi engatyiwayo Ukudibanisa imibhobho yentsimbi engatyiwayo Imibhobho yentsimbi engatyiwayo iityhubhu zococeko zentsimbi engatyiwayo ipayipi yentsimbi engatyiwayo engenamthungo ipayipi yentsimbi engatyiwayo engenamthungo Umbhobho wentsimbi engatyiwayo ipayipi yentsimbi engatyiwayo eweldeweyo Umlinganiselo wocingo oqhelekileyo ipayipi yentsimbi engatyiwayo ye-super austenitic 904L Umbhobho wentsimbi engatyiwayo we-Tp304 Ipayipi yentsimbi engatyiwayo i-TP304L engenamthungo Umbhobho weTshayina Itshathi yobungakanani bemibhobho
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