Later, super-duplex was created to address special needs of the chemical and oil&gas industries. By the manufacturer of Super Duplex Fasteners , this grade of stainless steel is sometimes referred to as or Hyper duplex grades. Fasteners, bars, rods, and other items made of super duplex stainless steel are among the many shapes, configurations, and specifications that are offered. The excellent ductility and weldability of super duplex stainless steel is a benefit.
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These Super Duplex 2507 Bolts, which are also known as super duplex grade stainless steels, have a microstructure that is comparable to that of duplex grade stainless steels. The name "duplex" denotes that this alloy has an equal mixture of ferrite and austenite in its microstructure. When compared to common stainless steel grades like the 300 series or nickel-based alloys, etc., the 2507 Nuts' two-phase microstructure ensures greater resistance to stress corrosion cracking and pitting. In industries like offshore oil and gas and applications in wells where there are either naturally high brine levels or where brine has been injected to boost recovery, 2507 Stainless Steel Fixings are particularly helpful.
Due to the difficulty of processing Super Duplex Stainless Steel Bolts, there is a chance that the buyer may end up with fasteners that were produced using a flawed method. Super Duplex Nuts And Bolts that have undergone this processing will produce subpar outcomes. As a result, it's crucial that customers choose trusted, licenced suppliers, dealers, and Super Duplex Fasteners Manufacturers.
The Super Duplex 2507 Fasteners are made from a highly alloyed stainless steel that performs well, according to the super duplex class of stainless steels. The UNS S32760 Fg Stud Bolts and Super Duplex Screws provide exceptional resistance to acids, compounds containing chlorine, and caustic solutions when compared to 300 grade stainless steels. In actuality, the high content of chromium, nickel, and molybdenum significantly enhances the mechanical properties of UNS S32760 Stud Bolts. For instance, these three components increase the UNS S32760 Bolting's resistance to pitting and intergranular corrosion. Additionally, the alloy of super duplex grade stainless steels has nitrogen added. The addition of nitrogen to the alloy of UNS S32750 Bolts encourages structural hardening, increasing the tensile and yield strength of Saf 2507 Bolts without compromising the stainless steel's toughness property.
Super Duplex Stainless Steel Fasteners type |
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Super Duplex Stainless Steel Fasteners Price in USD |
Super Duplex Stainless Steel Fasteners Price Per Unit in UAE Dirham |
|---|---|---|---|
Super Duplex Stainless Steel Bolt Price in India (SET M12X 25) |
INR 150/Unit |
USD $ 2.16 Per Unit |
AED 7.94 UAE Dirham |
Super Duplex Stainless Steel Screw Price in India (SET M12X 25) |
INR 200/Unit |
USD $ 2.88/Unit |
AED 10.59 UAE Dirham |
Super Duplex Stainless Steel Hex Nut Price with Stud Bolt (M16 X 150MM) |
INR 620/Unit |
USD $ 8.94/Unit |
AED 32.82 UAE Dirham |
Super Duplex Stainless Steel Lock Washer and Super Duplex Spring Washer Price (16X32 type m) |
INR 410/Unit |
USD $ 5.91/Unit |
AED 21.70 UAE Dirham |
DIN 125 Plain Washer & Super Duplex Flat Washer Price Per Kg (DIN 125, M16, P- 243000) |
INR 210 Per Kg |
USD $ 3.03 Per Kg |
AED 11.12 / KG UAE Dirham |
Super Duplex Stainless Steel Stud Bolt Price with Hex Nut (Full Thread Stud +2 Hex Nuts + 2 Plain Washers M16 X 150 mm long) |
INR 590/Unit |
USD $ 8.50/Unit |
AED 31.23 UAE Dirham |
Super Duplex 2507 Bolt Price in India (SET M12X 25) |
INR 150/Unit |
USD $ 2.16 Per Unit |
AED 7.94 UAE Dirham |
Super Duplex 2507 Screw Price in India (SET M12X 25) |
INR 200/Unit |
USD $ 2.88/Unit |
AED 10.59 UAE Dirham |
Super Duplex 2507 Hex Nut Price with Stud Bolt (M16 X 150MM) |
INR 620/Unit |
USD $ 8.94/Unit |
AED 32.82 UAE Dirham |
Super Duplex 2507 Lock Washer and Duplex 2507 Stainless Steel Spring Washer Price (16X32 type m) |
INR 410/Unit |
USD $ 5.91/Unit |
AED 21.70 UAE Dirham |
DIN 125 Plain Washer & Duplex 2507 Stainless Steel Flat Washer Price Per Kg (DIN 125, M16, P- 243000) |
INR 210 Per Kg |
USD $ 3.03 Per Kg |
AED 11.12 / KG UAE Dirham |
Super Duplex 2507 Stud Bolt Price with Hex Nut (Full Thread Stud +2 Hex Nuts + 2 Plain Washers M16 X 150 mm long) |
INR 590/Unit |
USD $ 8.50/Unit |
AED 31.23 UAE Dirham |
| SDSS Fasteners Specifications | ASTM / ASME F53, A479 / SA479 |
| Standard of Super Duplex 2507 Fasteners | DIN, ASTM, BS and all International Standards |
| Length of Super Duplex 2507 Fasteners | 3 mm to 200 mm |
| Super Duplex 2507 Nuts Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Super Duplex 2507 Bolt / Screw Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Super Duplex 2507 Machine Screws Size | M1.6 - M12 |
| Super Duplex 2507 Washers Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Super Duplex Steel Grades | Super Duplex Steel UNS S32750 |
| Super Duplex 2507 Fasteners Type | Socket Head Cap Screw, Wing Screw, T-Head Bolts, Foundation Bolts,Screw, Studs, Socket Screw, Hex Set Screw, Cap Screw, Machine Screw, Wing Screw, Spring Washers, Eye Bolt,Structural Bolts, Bolts, Nuts, Sockets, Screws, Allen Cap screw, Washers, Studs, Marine Anchors, Anchors, Hexagon Nut,U- Bolts, Anchor Bolt, Nut, Hex Coupling Nut, Hex Nut, Square Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw, Pan Head Screw, Mushroom Head Square Neck Bolts, J Bolts |

Applications for the Super Duplex Hex Bolt include deep water offshore oil production, gas, and marine sectors due to the alloy's strong resistance to marine corrosion. The Super Duplex Stud Bolts are more challenging to produce, but having a higher yield strength and better corrosion resistance than other common austentic stainless steel grades. Because the Super Duplex Bolts and Nuts' alloy contains larger levels of Chromium, Nickel, Molybdenum, Nitrogen, and Tungsten, manufacturing them is tough. Intermetallic phases are encouraged to develop by these alloying components. Both the impact resistance and the corrosion resistance of duplex grade stainless steel are significantly impacted by the formation of intermetallic phases.
The alloy is the first choice in applications involving harsh environmental conditions or in sectors like the pulp and paper industry, petrochemical, oil & gas, due to its high yield strength and improved corrosion resistance.
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Element |
Content (%) |
|---|---|
Chromium, Cr |
24 – 26 |
Nickel, Ni |
6 – 8 |
Molybdenum, Mo |
3 – 5 |
Manganese, Mn |
1.20 max |
Silicon, Si |
0.80 max |
Copper, Cu |
0.50 max |
Nitrogen, N |
0.24 – 0.32 |
Phosphorous, P |
0.035 max |
Carbon, C |
0.030 max |
Sulfur, S |
0.020 max |
Iron, Fe |
Balance |
Alloy |
Common Name |
Related Specification |
||
|---|---|---|---|---|
European |
UNS |
ASTM/ASME |
||
Alloy 2507 |
SAF 2507 ® |
1.4410 |
UNS S32750 |
A479 / SA479 / F53 |
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) |
Hardness Rockwell C (HR C) |
|---|---|---|---|---|
UNS-S 32750 |
795 |
550 |
15 |
32max |
Properties |
Metric |
Imperial |
|---|---|---|
Density |
7.8 g/cm3 |
0.281 lb/in3 |
Melting point |
1350°C |
2460°F |