Super Duplex Steel UNS S32750 Fasteners
Table of Content
- Super Duplex Fasteners Specification
- Super Duplex Steel Uns S32750 Fasteners Equivalent Grades
- Super Duplex Steel Uns S32750 Fasteners Chemical Composition
- Super Duplex Steel Uns S32750 Fasteners Mechanical and Physical Properties
- Super Duplex Steel S32750 Bolt Dimensions
- Super Duplex S32750 Fasteners Weight Chart
Super Duplex Steel 32750 Fasteners, ASTM A479 UNS S32750 Fasteners, SDSS 1.4410 Fasteners, ASTM A276 UNS S32750 Fasteners, SDSS 32750 Bolts, Super Duplex 32750 Hex Bolts, Super Duplex Stainless Steel S32750 Heavy Hex Bolts, Super Duplex S32750 Nuts.
Super Duplex ASTM A479 UNS S32750 fasteners are known for their excellent machinability and ease of fabrication. With high chromium and nickel content, these fasteners, including nuts, bolts, washers, and screws, offer impressive corrosion resistance and superior oxidation protection. They maintain a significant portion of their strength at room temperature, making them ideal for demanding environments.
Super Duplex ASTM A479 UNS S32750 bolts excel in various conditions due to their robust composition, while the washers can withstand temperatures up to 1100 °C in dry air. However, care must be taken with the screws, as they can be sensitive to thermal shock and require careful handling during hot-working processes. The stud bolts are effective at temperatures reaching 1150 °C for continuous operations and 1035 °C for intermittent use.
Super Duplex fasteners are commonly utilized in high-temperature applications such as oven linings, boiler baffles, kilns, and combustion tubes. ASTM A479 Super Duplex S32750 fasteners are suitable for use in environments where temperatures exceed 550 °C, providing oxidation resistance up to 2000 °F and moderate strength at elevated temperatures. Whether for furnace components or refractory anchor bolts, Super Duplex ASTM A479 UNS S32750 fasteners deliver reliability and performance in challenging conditions.
Explore our extensive range of Super Duplex Steel Products, including pipes, tubes, flanges, and fittings, all known for their outstanding corrosion resistance and durability in challenging environments.
Super Duplex Fasteners Specification
| Grade | ASTM A479 UNS S32750 |
| Specifications | ASTM A 479 ASME SA 479 |
| Dimension | DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Types | Bolts, Nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, Hexagon Castle Nuts, Hexagon Domed Cap Bolts, Hexagon Thin Nuts etc |
Super Duplex Steel Uns S32750 Fasteners Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
| Super Duplex 2750 | 1.4410 | S32750 |
Super Duplex Steel Uns S32750 Fasteners Chemical Composition
| Element | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| UNS S32750 | 0.05 max | 1.00 max | 1.00 max | 0.030 max | 0.010 max | 24.00 – 26.00 | 3.00 – 4.00 | 6.00 – 8.00 | 0.20 – 0.30 | 57.61 min |
Super Duplex Steel Uns S32750 Fasteners Mechanical and Physical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Super Duplex Steel UNS S32750 | 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 116000 , MPa – 800 | Psi – 80000 , MPa – 550 | 15 % |
Super Duplex Steel S32750 Bolt Dimensions
| NOMINAL SIZE (D) | BODY DIAMETER | HEAD THICKNESS | ACROSS THE FLATS | ACROSS CORNERS | ||||
| D (MAX) | D (MIN) | H (MAX) | H (MIN) | F (MAX) | F (MIN) | C (MAX) | C (MIN) | |
| 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 S32750 Fasteners Weight Chart
| WEIGHTS MACHINE SCREWS & Type 1, 23, F and G TAPPING SCREWS LBS. Per 1000 pieces | |||||||||||
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DIAMETERS
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|
LENGTHS
|
#2
|
#3
|
#4
|
#5
|
#6
|
#8
|
#10
|
#12
|
1/4″
|
5/16″
|
3/8″
|
|
1/8
|
0.40
|
0.55
|
0.70
|
1.1
|
1.4
|
—
|
—
|
—
|
—
|
—
|
—
|
|
3/16
|
0.50
|
0.70
|
0.90
|
1.2
|
1.5
|
2.5
|
3.9
|
—
|
—
|
—
|
—
|
|
1/4
|
0.60
|
0.80
|
1.00
|
1.4
|
1.7
|
2.8
|
4.3
|
5.6
|
8.5
|
—
|
—
|
|
5/16
|
0.60
|
0.90
|
1.20
|
1.5
|
1.9
|
3.1
|
4.6
|
6.1
|
9.1
|
16.7
|
—
|
|
3/8
|
0.70
|
0.90
|
1.30
|
1.7
|
2.1
|
3.4
|
5.0
|
6.5
|
9.8
|
17.7
|
29.2
|
|
7/16
|
0.80
|
1.00
|
1.50
|
1.9
|
2.2
|
3.6
|
5.4
|
6.9
|
10.4
|
18.8
|
30.7
|
|
1/2
|
0.80
|
1.10
|
1.60
|
2.0
|
2.4
|
3.9
|
5.8
|
7.4
|
11.1
|
19.8
|
32.2
|
|
9/16
|
0.90
|
1.20
|
1.70
|
2.2
|
2.6
|
4.2
|
6.2
|
7.8
|
11.7
|
20.9
|
33.6
|
|
5/8
|
1.00
|
1.30
|
1.80
|
2.3
|
2.8
|
4.5
|
6.6
|
8.3
|
12.4
|
21.9
|
35.1
|
|
3/4
|
1.10
|
1.50
|
2.10
|
2.6
|
3.2
|
5.0
|
7.3
|
9.2
|
13.6
|
24.0
|
38.0
|
|
7/8
|
1.30
|
1.70
|
2.30
|
3.0
|
3.5
|
5.6
|
8.1
|
10.1
|
14.9
|
26.1
|
41.0
|
|
1″
|
1.40
|
1.90
|
2.50
|
3.4
|
3.9
|
6.2
|
8.9
|
11.0
|
16.1
|
28.8
|
44.0
|
|
1-1/8″
|
1.50
|
2.00
|
2.80
|
3.8
|
4.3
|
6.7
|
9.6
|
11.9
|
17.4
|
30.2
|
47.0
|
|
1-1/4″
|
1.60
|
2.20
|
3.00
|
4.1
|
4.6
|
7.3
|
10.4
|
12.8
|
18.7
|
32.3
|
49.8
|
|
1-1/2″
|
1.80
|
2.50
|
3.50
|
4.7
|
5.3
|
8.3
|
11.9
|
14.7
|
21.2
|
36.5
|
55.8
|
|
1-3/4″
|
2.10
|
2.90
|
4.00
|
5.3
|
6.1
|
9.4
|
13.5
|
16.5
|
23.7
|
40.7
|
61.7
|
|
2″
|
2.40
|
3.30
|
4.50
|
6.0
|
6.8
|
10.6
|
15.0
|
18.3
|
26.2
|
44.8
|
67.6
|
|
2-1/4″
|
2.60
|
3.60
|
5.00
|
6.7
|
7.6
|
11.8
|
16.6
|
20.1
|
28.8
|
19.0
|
73.5
|
|
2-1/2″
|
2.80
|
3.90
|
5.50
|
7.3
|
8.3
|
12.9
|
18.1
|
22.0
|
31.3
|
53.2
|
79.5
|
|
2-3/4″
|
3.10
|
4.30
|
6.00
|
7.9
|
9.1
|
13.9
|
19.7
|
23.8
|
33.9
|
57.3
|
85.3
|
|
3″
|
3.40
|
4.70
|
6.50
|
8.6
|
9.8
|
15.0
|
21.2
|
25.6
|
36.4
|
61.5
|
91.3
|
|
* Weights above are approximate and are based on pan head machine screws
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