Is There Is Any Difference Between Super Duplex Bolts And Nuts?
Super Duplex bolts and nuts are two common fasteners that are used in tandem to connect different equipment. A super duplex bolt is threaded on its exterior, allowing it to be wrenched easily. They may require nuts to hold them in place. A super duplex nut is a small metal object designed without a head. These nuts have a spiral cut groove that runs through a hole in the center. The nuts are designed to connect a bolt or stud to firmly grip the equipment. A nut experiences compressive forces, while bolts experience tensile forces.
Features Of Super Duplex Fasteners
A super duplex fastener is designed with an austenitic and ferritic microstructure. These fasteners efficiently connect different equipment and firmly hold them in place. The superior chemical composition makes the fasteners have good corrosion resistance properties. A super duplex grade has good tolerance to pitting by acids and stress corrosion cracking. They show excellent mechanical strength and possess good ductility and toughness.
How Much Torque Does A Super Duplex Hex Bolt Need?
Torque is very necessary to create strong tension between threaded fasteners. The torque required varies from nominal diameters and whether the device is lubricated or dry. For a hex bolt with nominal diameters of 1/4 inches, the dry torque will be 7.4 ft-lb with lubricated being 5.5 ft-lb. Similar to nominal diameters of 1 inch, the dry torque will be 560 ft-lb, with the lubricated torque being 420 ft-lb.
How Do You Read A Super Duplex Stud Bolts And Nut Size?
A Super duplex metric nut size can be checked by counting the number of lines on the tape measure to calculate its measurements. If you see 9 lines the size is 9mm. For a US standard count the smallest line to tape measure in sixteenths. Adding the sixteenths will help find the size. Count the 11 lines, the size of the nut will be 11/6. A super duplex stud bolts have free threads above the top of the nut that is equal to 1/3 times the bolt diameter.
Table of Content
Super Duplex Bolt Specification
Standards | ASTM, BS, DIN, and all International Standards |
Specifications | ASME / ASTM A479, SA479 |
Length | 3 milimeter to 200 milimeter |
Bolt / Screw Sizes | M3 to M56 | 3/6 Inch to 2 Inch |
Nuts Sizes | M3 to M56 | 3/6 Inch to 2 Inch |
Machine Screws Sizes | M1.6 to M12 |
Types | Wing Screw, Socket Head Cap Screw, T-Head Bolts, Screw, Foundation Bolts, Studs, Hex Set Screw, Wing Screw, Spring Washers, Structural Bolts, Eye Bolt, Nuts, Bolts, Sockets, Allen Cap screw, Screws, Studs, Washers, Marine Anchors, Hexagon Nut, Anchors, U- Bolts, Nut, Anchor Bolt, Hex Coupling Nut, Square Nut, Hex Nut, Hex Domed Cap Nuts, Hex Head Bolts, Stud Bolts, Socket Hexagon Head Screw, Machine Screw, Mushroom Head Square Neck Bolts, Pan Head Screw, J Bolts,Socket Screw, Cap Screw, |
Washers Sizes | M3 to M56 | 3/6 Inch to 2 Inch |
Description | Price in India | Price in USD | Price in Euro | Price in Saudi Riyal | Price in Ringgit |
SUPER DUPLEX MATERIALS: FULLTHREAD STUD + 2 HEX NUTS + 2 PLAIN WASHER M10 X 70 MM LONG | ₹ 393/ PCS | $ 4.92 | € 4.98 | SAR 18.50 | RM 22.08 |
UPER DUPLEX HEX HEAD BOLTS : M14 X 50 MM LONG | ₹ 310/ PCS | $ 3.88 | € 3.92 | SAR 14.59 | RM 17.41 |
SUPER DUPLEX HEX NUTS : M14 | ₹ 117/ PCS | $ 1.47 | € 1.49 | SAR 5.53 | RM 6.60 |
SUPER DUPLEX HEX NUTS : M20 | ₹ 277/ PCS | $ 3.47 | € 3.51 | SAR 13.05 | RM 15.57 |
SUPER DUPLEX STUDBOLT WITH 2 HEX NUTS & 2 FLAT WASHERS :- M24X200MM LONG | ₹ 1,622/ SET | $ 20.31 | € 20.54 | SAR 76.36 | RM 91.14 |
SUPER DUPLEX MATERIALS: FULLTHREAD STUD + 2 HEX NUTS + 2 PLAIN WASHER M20 X 150 MM LONG | ₹ 738/ PCS | $ 9.24 | € 9.35 | SAR 34.74 | RM 41.46 |
Super Duplex Stainless Steel Fasteners Types
Super Duplex Fasteners
Super Duplex Stainless Steel Fasteners
Super Duplex Bolt
Super Duplex Nuts And Bolts
SDSS Stud Bolts
SDSS Screws
Super Duplex U Bolt
Super Duplex Hex Nut
Super Duplex Hex Bolts
Super Duplex Socket Head Cap Screws
Super Duplex Washer
SDSS Heavy Hex Bolts
SDSS Heavy Hex Bolts Dimension
Nominal Size Of D | Diameter Of Body | Thickness Of Head | Flats Across | Bolts Corners Across | ||||
---|---|---|---|---|---|---|---|---|
D (Maximum) | D (Minimum) | H (Maximum) | H (Minimum) | F (Maximum) | F (Minimum) | C (Maximum) | C (Minimum) | |
m10 | 10.00 | 9.78 | 6.63 | 6.17 | 17.00 | 15.73 | 18.48 | 17.77 |
m12 | 12.00 | 11.73 | 7.76 | 4.24 | 19.00 | 17.73 | 20.78 | 20.03 |
m14 | 14.00 | 13.73 | 9.09 | 8.51 | 22.00 | 20.67 | 24.25 | 23.35 |
m16 | 16.00 | 15.73 | 10.32 | 9.68 | 24.00 | 23.67 | 27.71 | 26.75 |
m20 | 20.00 | 19.67 | 12.88 | 12.12 | 30.00 | 29.16 | 34.64 | 32.95 |
m24 | 24.00 | 23.67 | 15.44 | 14.56 | 36.00 | 35.00 | 41.57 | 39.55 |
m30 | 30.00 | 29.67 | 19.48 | 17.92 | 46.00 | 45.00 | 53.12 | 50.85 |
m36 | 36.00 | 35.61 | 23.38 | 21.63 | 55.00 | 53.80 | 63.51 | 60.79 |
m42 | 42.00 | 41.38 | 26.97 | 25.03 | 65.00 | 62.90 | 75.06 | 71.71 |
m48 | 48.00 | 47.38 | 31.07 | 28.93 | 75.00 | 72.60 | 86.60 | 82.76 |
m56 | 56.00 | 55.26 | 36.2 | 33.80 | 85.00 | 82.20 | 98.15 | 93.71 |
m64 | 64.00 | 63.26 | 41.32 | 38.68 | 95.00 | 91.80 | 109.70 | 104.65 |
m72 | 72.00 | 71.26 | 46.45 | 43.55 | 105.00 | 101.40 | 121.24 | 115.60 |
m80 | 80.00 | 79.26 | 51.58 | 48.42 | 115.00 | 111.00 | 132.72 | 126.54 |
m90 | 90.00 | 89.13 | 57.74 | 54.26 | 130.00 | 125.50 | 150.11 | 143.07 |
m100 | 90.00 | 99.13 | 63.9 | 60.10 | 145.00 | 140.00 | 167.43 | 159.60 |
Super Duplex Heavy Hex Nut Dimension
Nominal Size For Thread Diameter | F | G | H | ||||||
Width Of Across Flats | Width Of Across Corners | Thickness Table | |||||||
Basic | Maximum | Minimum | Maximum | Minimum | Basic | Maximum | Minimum | ||
1/4 | .2500 | 7/16 | .438 | .428 | .505 | .488 | 7/32 | .226 | .212 |
5/16 | .3125 | 1/2 | .500 | .489 | .577 | .557 | 17/64 | .273 | .258 |
3/8 | .3750 | 9/16 | .562 | .551 | .650 | .628 | 21/64 | .337 | .479 |
7/16 | .4375 | 11/16 | .688 | .675 | .794 | .768 | 3/8 | .385 | .365 |
1/2 | .5000 | 3/4 | .750 | .736 | .866 | .840 | 7/16 | .448 | .427 |
9/16 | .5625 | 7/8 | .875 | .861 | 1.010 | .982 | 31/64 | .496 | .473 |
5/8 | .6250 | 15/16 | .938 | .922 | 1.083 | 1.051 | 35/64 | .559 | .535 |
3/4 | .7500 | 1-1/8 | 1.125 | 1.088 | 1.299 | 1.240 | 41/64 | .665 | .617 |
7/8 | .8750 | 1-5/16 | 1.312 | 1.269 | 1.516 | 1.447 | 3/4 | .776 | .724 |
1 | 1.0000 | 1-1/2 | 1.500 | 1.450 | 1.732 | 1.653 | 55/64 | .887 | .831 |
1-1/8 | 1.1250 | 1-11/16 | 1.688 | 1.631 | 1.949 | 1.859 | 31/32 | .999 | .939 |
1-3/8 | 1.3750 | 2-1/16 | 2.062 | 1.994 | 2.382 | 2.273 | 1-11/64 | 1.206 | 1.138 |
1-1/2 | 1.500 | 2-1/4 | 2.250 | 2.175 | 2.598 | 2.480 | 1-9/32 | 1.ASTM A194 GR. 8 | 1.245 |
1-5/8 | 1.6250 | 2-7/16 | 2.438 | 2.356 | 2.815 | 2.686 | 1-25/64 | 1.429 | 1.353 |
1-3/4 | 1.7500 | 2-5/8 | 2.625 | 2.538 | 3.031 | 2.893 | 1-1/2 | 1.540 | 1.460 |
2 | 2.0000 | 3 | 3.000 | 2.900 | 3.464 | 3.306 | 1-23/32 | 1.763 | 1.675 |
2-1/4 | 2.2500 | 3-3/8 | 3.375 | 3.263 | 3.897 | 3.719 | 1-15/16 | 1.986 | 1.890 |
2-1/2 | 2.5000 | 3-3/4 | 3.750 | 3.625 | 4.330 | 4.133 | 2-5/32 | 2.209 | 2.105 |
2-3/4 | 2.7500 | 4-1/8 | 4.125 | 3.988 | 4.763 | 4.546 | 2-3/8 | 2.431 | 2.319 |
Super Duplex Nuts And Bolts Application
Equivalent Grades Of SDSS Stud Bolts
Alloy | Common Name | Related Specification | ||
---|---|---|---|---|
European | UNS | ASTM/ASME | ||
Alloy 2507 | SAF 2507 ® | 1.4410 | UNS S32750 | A479 / SA479 / F53 |
SDSS Screws Chemical Composition
Element | Contents (%) |
---|---|
Nickel, Ni | 6 – 8 |
Chromium, Cr | 24 – 26 |
Manganese, Mn | 1.20 maximum |
Molybdenum, Mo | 3 – 5 |
Silicon, Si | 0.80 maximum |
Nitrogen, N | 0.24 – 0.32 |
Copper, Cu | 0.50 maximum |
Phosphorous, P | 0.035 maximum |
Sulfur, S | 0.020 maximum |
Carbon, C | 0.030 maximum |
Iron, Fe | Balance |
Super Duplex U Bolt Mechanical Properties
Grades | Yield Strength minimum 0.2% Proof (MPa) |
Tensile Strength minimum |
Hardness Rockwell C |
Elongation (% in 50 milimeter) |
---|---|---|---|---|
UNS-S 32750 | 550 | 795 | 32 maximum | 15 |
Super Duplex Hex Bolts Physical Properties
Properties | Imperial | Metric |
---|---|---|
Melting point | 2460°F | 1350°C |
Density | 0.281 lb/in3 | 7.8 gram/centimeter3 |
Super Duplex Fasteners Manufacturer
Check our reference of material in these countries
Neste Refinery Expansion - Singapore
Rio Grande Lng, USA
Lifepharma UAE
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