Super Duplex Stainless Steel(PREN range: 38–45) - UNS No. S32750,S32760,S32550,S32520
Typically grade EN 1.4410 up to so-called hyper duplex grades (PREN: >45) developed later to meet specific demands of the oil and gas as well as those of the chemical industries. They offer a superior corrosion resistance and strength but are more difficult to process because the higher contents of Cr, Mo, N and even W promote the formation of intermetallic phases, which reduce drastically the impact resistance of the steel. Faulty processing will result in poor performance and users are advised to deal with reputable suppliers/processors.Applications include deepwater offshore oil production.
Lean Duplex | ||||||||||||
ID | Name | ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn max. | Cu | W | PRE* |
2101 | S32101 | 1.4162 | 0,04 | 21,0-22,0 | 1,35-1,7 | 0,1 – 0,8 | 0,20-0,25 | 4,0-6,0 | 0,1-0,8 | – | 26 | |
F66 | 2202 | S32202 | 1.4062 | 0,03 | 21,5-24,0 | 1,0-2,8 | 0,45 | 0,18-0,26 | 2,0 | – | 26 | |
F68 | 2304 | S32304 | 1.4362 | 0,03 | 21,5-24,5 | 3,0-5,5 | 0,05-0,6 | 0,05-0,20 | 2,5 | 0,05-0,60 | – | 26 |
2102 | S82011 | 0,03 | 20.5-23.5 | 1.00-2.00 | 0,1 – 1.00 | 0.15-0.27 | 2.00-3.00 | 0.5 | – | 26 | ||
Standard Duplex | ||||||||||||
ID | Name | ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn max. | Cu | W | PRE* |
F51 | 2205 | S31803 | 1.4462 | 0,03 | 21,0-23,0 | 4,5-6,5 | 2,5-3,5 | 0,08-0,20 | 2,0 | – | – | 33 |
F60 | 2205 | S32205 | 1.4462 | 0,03 | 22,0-23,0 | 4,5-6,5 | 3,0-3,5 | 0,14-0,20 | 2,0 | – | – | 35 |
2003 | S32003 | 1.4662 | 0,03 | 19.5-22.5 | 3.0-4.0 | 1.5-2.0 | 0.14-0.2 | 2,0 | – | – | 30 | |
2404 | S82441 | 1.4662 | 0,03 | 23.0-25.0 | 3.0-4.5 | 1.00-2.00 | 0.20-0.30 | 2.5-4.0 | 0.10-0.80 | – | 33 | |
Super Duplex | ||||||||||||
ID | Name | ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn max. | Cu | W | PRE* |
F59 | S32520 | 1.4507 | 0,03 | 24,0-26,0 | 5,5-8,0 | 3,0-4,0 | 0,20-0,35 | 1,5 | 0,5-2,0 | – | >40 | |
F61 | 255 | S32550 | 1.4507 | 0,04 | 24,0-27,0 | 4,5-6,5 | 2,9-3,9 | 0,10-0,25 | 1,5 | 1,5-2,5 | – | >40 |
F53 | 2507 | S32750 | 1.441 | 0,03 | 24,0-26,0 | 6,0-8,0 | 3,0-5,0 | 0,24-0,32 | 1,2 | 0,50 | – | 43 |
F55 | Z100 | S32760 | 1.4501 | 0,03 | 24,0-26,0 | 6,0-8,0 | 3,0-4,0 | 0,20-0,30 | 1,0 | 0,5-1,0 | 0,5-1,0 | 42 |
Hyper Duplex | ||||||||||||
Name | ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn max. | Cu | W | PRE* | |
2707 | S32707 | – | 0,03 | 26,0-29,0 | 5,5-9,5 | 4,0-5,0 | 0,30-0,50 | 1,5 | 1,00 | – | 49 | |
3207 | S33207 | – | 0,03 | 29,0-33,0 | 6,0-9,0 | 3,0-5,0 | 0,40-0,60 | 1,5 | 1,00 | – | 50 | |
Austenitic Grades | ||||||||||||
ASTM | EN-Nr. | C max. | Cr | Ni | Mo | N | Mn | Cu | W | PRE* | ||
304L | 1.4307 | 0,03 | 17,5-19,5 | 8,0-10,5 | – | 0,11 | – | – | – | 18 | ||
316L | 1.4404 | 0,03 | 16,5-18,5 | 10,0-13,0 | 2,0-2,5 | 0,10 | – | – | – | 24 | ||
904L | 1.4539 | 0,02 | 19,0-21,0 | 24,0-26,0 | 4,0-5,0 | 0,15 | – | 1,20 | – | 34 | ||
S31254 | 1.4547 | 0,2 | 19,5-20,5 | 17,5-18,5 | 6,0-7,0 | 0,18-0,25 | – | 0,5-1,0 | – | 43 |
Forms of Super Duplex SS Fastener Available at JM-INDUSTRY
Product name | Standard No. | Size | |
BOLT | HEX HEAD BOLT | ANSI/ASME B18.2.1, DIN933, DIN931 | 1/4”-4”, M5-M100 |
SOCKET CAP SCREW | ANSI/ASME B18.3, DIN912, DIN7991, DIN913/916 | 1/4”-4”, M5-M100 | |
FLANGE BOLT | ANSI/ASME B18.2.3.4M-2001, DIN 6921 | 1/2”-4”, M10-M100 | |
EYE BOLT | ANSI/ASME, DIN standard | 1/2”-4”, M10-M100 | |
OTHER BOLT | U BOLT, T BOLT, J BOLT, SQURE HEAD BOLT, SHOULDER BOLT, AND NON-STANDARD BOLT ACCORDING TO CUSTOMER NEEDS. | ||
STUD | THREADED ROD/BAR | ANSI/ASME, DIN975/DIN976 | 3/8”-4”, M5-M100 |
DOUBLE ENDS STUDS | ANSI/ASME, DIN STANDARD | 3/8”-4”, M5-M100 | |
NUT | HEX NUT | ANSI/ASME B18.2.2, DIN934 | 1/4”-4”, M5-M100 |
HEAVY HEX NUT | ANSI/ASME B18.2.2, DIN standard | 1/2”-4”, M12-M100 | |
NYLON LOCK NUT | ANSI/ASME B18.16.6-2008, DIN 985,DIN982 | 1/2”-4”, M12-M100 | |
FLANGE NUT | ANSI/ASME, DIN6923 | 1/2”-4”, M12-M100 | |
COUPLING NUT/LONG NUT | ANSI/ASME, DIN STANDARD | 1/2”-4”, M12-M100 | |
SQUARE NUT | ANSI/ASME, DIN 557 | 1/2”-4”, M12-M100 | |
HEX DOOMD CAP NUT | ANSI/ASME, DIN1587 | 1/2”-4”, M12-M100 | |
WING NUT | ANSI/ASME, DIN315 | 1/2”-4”, M12-M100 | |
WASHER | FLAT WASHER | ANSI/ASME B18.22.1, DIN125 | 3/8”-4”, M6-M100 |
SPRING WASHER | ANSI/ASME B18.21.1, DIN127 | 3/8”-4”, M6-M100 |
Testing before shipping
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Step 1: Size Detection
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Step 2: GO Gauge and NO-GO Gauge Detection
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Step 3: Chemical Composition Detection
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Step 4: Mechanical Properties Test
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Step 5: The product is carefully packaged
Duplex stainless steels are usually selected for their high mechanical properties and good to very high corrosion resistance (particularly to stress corrosion cracking).
Oil and Gas:
a wide range of equipment: flowlines, manifolds, risers, pumps, valves, etc.
Pulp and Paper:
digesters, pressure vessels, liquor tanks, etc.
Chemical engineering:
pressure vessels, heat exchangers, condensers, distillation columns, agitators, marine chemical tankers, etc.
Water:
desalination plants, large tanks for water storage, waste water treatment
renewable energy: Biogas tanks
Mobility: tramcars and bus frames, tank trucks, iron ore wagons
Engineering: pumps, valves, fittings, springs, etc.
Oil and Gas:
a wide range of equipment: flowlines, manifolds, risers, pumps, valves, etc.
Pulp and Paper:
digesters, pressure vessels, liquor tanks, etc.
Chemical engineering:
pressure vessels, heat exchangers, condensers, distillation columns, agitators, marine chemical tankers, etc.
Water:
desalination plants, large tanks for water storage, waste water treatment
renewable energy: Biogas tanks
Mobility: tramcars and bus frames, tank trucks, iron ore wagons
Engineering: pumps, valves, fittings, springs, etc.
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Special Alloy Fastener
- Titanium & Titanium Alloy
- Hastelloy Alloy
- Monel Alloy
- Inconel Alloy
- Nickel Alloy
-
Duplex Stainless Steel
- Lean Duplex Stainless Steel (PREN range: 22–27)- UNS No. S32101, S82011, S32202, S32304
- Standard Duplex Stainless Steel(PREN range: 28–38) - UNS No. S32003,S82441,S31803,S32205
- Super Duplex Stainless Steel(PREN range: 38–45) - UNS No. S32750,S32760,S32550,S32520
- Hyper Duplex Stainless Steel(PREN range: 49-50) - UNS No. S32707,S33207
- Incoloy Alloy Fastener
- High temperature Alloy steel
- Stainless Steel