Duplex / Super Duplex Steel Fasteners Manufacturer

Super duplex stainless steel fasteners are a critical component in various industrial applications, known for their exceptional corrosion resistance and high strength properties. Super Duplex Fasteners offer a combination of austenitic and ferritic microstructures Manufactured from super duplex steel, providing enhanced durability and superior performance in challenging environments. Super Duplex Steel Fasteners are uniquely composed, often denoted by alloy 2507 fasteners. It ensures resistance to corrosion, pitting, and stress corrosion cracking, making them ideal for harsh chemical, petrochemical, and offshore environments. Super duplex stainless steel fasteners and Duplex steel flanges are corrosion-resistant materials designed for demanding applications, but they serve distinct roles in constructing and assembling structures.

Table Of content

One of the noteworthy variants within this category is the super duplex bolts, particularly those made of ASTM A479 UNS S32750. Uns S32205 Bolts Suppliers are crucial in providing these high-quality fasteners to industries requiring reliable and robust solutions. Super duplex stainless steel fasteners and super duplex steel flanges are the same family of high-performance alloys known for their exceptional corrosion resistance and strength. 

Duplex steel fasteners, including duplex uns s31803 bolt, represent another subset within this comprehensive category. DSS S31803 Fasteners are recognized for their balanced combination of mechanical strength and corrosion resistance. Whether used in construction, marine, or chemical processing industries, duplex steel fasteners are designed to withstand extreme conditions. As part of their standardization, ASTM A479 super duplex fasteners adhere to strict guidelines, assuring users of their quality, precision, and conformance to industry standards. Super duplex stainless steel fasteners are commonly employed in tandem with duplex steel pipe fittings, enhancing the piping system’s overall corrosion resistance and durability. This combination of materials ensures optimal performance in challenging environments, making it well-suited for applications in industries such as oil and gas, chemical processing, and marine engineering. 

Super duplex steel anchor fasteners further extend the utility of these fasteners by providing a secure and stable foundation in structural applications. Super duplex steel anchor fasteners are integral to constructing super duplex pipe fittings, providing robust and corrosion-resistant connections. These anchor fasteners enhance super duplex piping systems’ overall performance and longevity in demanding industrial applications. 

In conclusion, duplex stainless steel fasteners, including super duplex bolts, duplex steel fasteners, and ASTM A479 UNS S32750 fasteners, play a pivotal role in ensuring the integrity and longevity of structures and equipment in demanding industries. The super duplex 2507 bolts have composition and adherence to stringent standards such as ASTM A479, which underscore the commitment to quality and performance. Super duplex steel anchor fasteners offer superior corrosion resistance and durability, making them ideal for demanding applications in harsh environments.

On the other hand, stainless steel fasteners provide a versatile and corrosion-resistant solution for various construction and industrial projects, ensuring long-lasting performance in various conditions. Super duplex s32750 bolts suppliers significantly meet the diverse needs of industries requiring robust and corrosion-resistant fastening solutions. Global Steel Manufacturer of Super Duplex Fasteners in India. Leveraging cutting-edge technology and a commitment to excellence, the company ensures the fabrication of fasteners that meet stringent international corrosion resistance and durability standards. 

What applications are suitable for super duplex fasteners?

Super duplex fasteners are commonly used in demanding applications where corrosion resistance and high strength are critical. Industries such as offshore oil and gas, chemical processing, marine engineering, and desalination plants often utilize super duplex fasteners due to their ability to withstand harsh environments.

What is the typical range for Super Duplex fasteners price?

The Super Duplex fasteners price can vary significantly depending on size, quantity, grade, and supplier factors. Requesting a quote from reputable suppliers is advisable to get accurate pricing information.

What are the common available Super Duplex fastener sizes?

Super Duplex fasteners are available in various sizes to suit various applications. Common sizes include diameters for bolts, screws, and studs, as well as different lengths to accommodate specific requirements. Standard size ranges typically start from M6 to M36, with larger sizes available for more specialized applications.

Specification of Duplex / Super Duplex Steel Fasteners

Standard ASTM F593, F594, A193, A194 / ASME SF593, F594, SA193, SA194
Bolt / Screw Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Machine Screws Size M1.6 – M12
Self Tapping Screw Size No.2 – No. 14
Length 3 mm to 200 mm
Threads UNF, BSW, BSF, METRIC, UNC, or as required
Fasteners
  • DIN : DIN 934, DIN 931, DIN 970, DIN 933
  • UTS : UNEF, NPT, UNC, UNS, UNF, NPTF
  • ISO : JIS standards, ISO 4033, ISO 4032,
  • ANSI – American National Standards Institute
  • ASME B18.5
  • ANSI B 28.2.4 1M
  • as per defined in ASME B16.5 standard SS 304 Stud Bolt length
  • ANSI B 18.2.4 2M
  • as per defined in ASME B18.2.2 SS 304 Hex nuts
Form Hex, Threading, Square, Round as per Gauge Etc.
Raw materials Source JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc.
Threads Configuration ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads
Certification Dual Certified As per ASTM & ASME Codes
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Threads Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically
Test Certificate as per EN 10204 / 3.1 Manufacturer Test Certificate
Additional Certifications PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Production process M24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting element machining and CNC
Duplex / Super Duplex Steel Fasteners

Equivalent Grades

STANDARD WERKSTOFF NR. UNS
Duplex Steel 1.4462 S31803 / S32205
Super Duplex 2507 1.4410 S32750
Super Duplex 1.4501 S32760

Different Types

Nuts

Duplex / Super Duplex Steel Nuts

Bolts

Duplex / Super Duplex Steel Bolts

Washers

Duplex / Super Duplex Steel Washers

Screws

Duplex / Super Duplex Steel Screws

Stud Bolts

Duplex / Super Duplex Steel Stud Bolts

Anchor Bolts

Duplex / Super Duplex Steel Anchor Bolts

Contact us to get a quick quote for your requirement.

We offer These Duplex / Super Duplex Steel Fasteners as per DIN, ISO, JIS or ANSI Standard.

Request a Quote

Available Stock

  • UNS S32750 Hanger Bolts
  • SDSS 2507 Foundation Bolts
  • Super Duplex Steel 1.4410 Nuts
  • Duplex Stainless Steel Fasteners
  • Duplex Steel 2205 Fasteners
  • Super Duplex Stainless Steel Fasteners
  • Super Duplex S32760 Foundation Bolts
  • SDSS Socket Cap Screw
  • Super Duplex Steel Elevator Bolts
  • S32205 Duplex Steel Fasteners
  • DSS UNS S31803 Hexagonal Washer
  • Duplex Steel 1.4462 Locking Nuts
  • Super Duplex Steel S32750 Tooth Lock Washers
  • Duplex Steel 2205 Dock Washer
  • S32750 Super Duplex Steel Customized Washer
  • Super Duplex Steel 1.4501 Fender Washer
  • Super Duplex Draw Bolts
  • DSS 2205 Double Ended Studs
  • Duplex Hex Head Fasteners
  • Duplex S32205 Flange Lock Nut
  • Super Duplex Steel Hex Washers
  • S32205 Duplex Fasteners
  • Duplex Steel Fasteners Chart Pdf
  • SDSS 1.4501 Lock Washer
  • S31803 Duplex Steel Bolted Joints
  • Large Range of Duplex Steel Fasteners Grade 317
  • Duplex Countersunk Washer
  • Super Duplex Steel Fasteners Application
  • Duplex Hex Socket Set Screws
  • Check Super Duplex Steel Wing Nuts
  • DSS Mushroom Head Square Neck Bolts
  • Duplex Steel Fasteners Standard
  • S32760 Super Duplex Steel Fasteners
  • Duplex Steel Allen Cap Screw
  • Super Duplex Steel Concrete Screw
  • DSS Thread Rolling Screw
  • Super Duplex Steel 1.4410 Hex Coupling Nuts
  • ASTM F593 S32750 Super Duplex Steel Bolts
  • Super Duplex Steel Ogee Washer
  • SDSS 2507 Construction screws
  • SDSS S32760 Particle Board Screw

Duplex / Super Duplex Steel Hex Bolt Dimension

NOMINAL SIZE (D)
BODY DIAMETER
HEAD THICKNEASTM A193
ACROASTM A193 THE FLATS
ACROASTM A193 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

Size Chart of Duplex / Super Duplex Steel Nuts

Nut Size (mm)
Diameter* (mm)
Height (mm)
Hex Nut
Jam Nut
Nylock Nut
2mm
4
1.6
1.2
–
2.5mm
5
2
1.6
–
3mm
5.5
2.4
1.8
4
4mm
7
3.2
2.2
5
5mm
8
4
2.7
5
6mm
10
5
3.2
6
7mm
11
5.5
3.5
–
8mm
13
6.5
4
8
10mm
17
8
5
10
12mm
19
10
6
12
14mm
22
11
7
14
16mm
24
13
8
16
18mm
27
15
9
18.5
20mm
30
16
10
20
* This is the diameter across the flats. It is also the size of wrench to use.

Dimensions of Duplex / Super Duplex Steel Heavy Hex Nuts

Nominal Size or Basic Major Thread Diameter
F
G
H
Width Across Flats
Width Across Corners
Thickness
Basic
Max
Min
Max
Min
Basic
Max
Min
1/4
.2500
1/2
.500
.488
.577
.556
15/64
.250
.218
5/16
.3125
9/16
.562
.546
.650
.622
19/64
.314
.280
3/8
.3750
11/16
.688
.669
.794
.763
23/64
.377
.341
7/16
.4375
3/4
.750
.728
.866
.830
27/64
.441
.403
1/2
.5000
7/8
.875
.850
1.010
.969
31/64
.504
.464
9/16
.5625
15/16
.938
.909
1.083
1.037
35/64
.568
.526
5/8
.6250
1-1/16
1.062
1.031
1.227
1.175
39/64
.631
.587
3/4
.7500
1-1/4
1.250
1.212
1.443
1.382
47/64
.758
.710
7/8
.8750
1-7/16
1.438
1.394
1.660
1.589
55/64
.885
.833
1
1.0000
1-5/8
1.325
1.575
1.876
1.796
63/64
1.012
.956
1-1/8
1.1250
1-13/16
1.812
1.756
2.093
2.002
1-7/64
1.139
1.079
1-1/4
1.2500
2
2.000
1.938
2.309
2.209
1-7/32
1.251
1.187
1-3/8
1.3750
2-3/16
2.188
2.119
2.526
2.416
1-11/32
1.378
1.460
1-1/2
1.5000
2-3/8
2.375
2.300
2.742
2.622
1-15/32
1.505
1.433
1-5/8
1.6250
2-9/16
2.562
2.481
2.959
2.828
1-19/32
1.632
1.556
1-3/4
1.7500
2-3/4
2.750
2.662
3.175
3.035
1-23/32
1.759
1.679
2
2.0000
3-1/8
3.125
3.025
3.608
3.449
1-31/32
2.013
1.925
2-1/4
2.2500
3-1/2
3.500
3.388
4.041
3.862
2-13/64
2.251
2.155
2-1/2
2.5000
3-7/8
3.875
3.750
4.474
4.275
2-29/64
2.505
2.401
2-3/4
2.7500
4-1/4
4.250
4.112
4.907
4.688
2-45/64
2.759
2.647
3
3.0000
4-5/8
4.625
4.475
5.340
5.102
2-61/64
3.013
2.893
3-1/4
3.2500
5
5.000
4.838
5.774
5.515
3-3/16
3.252
3.124
3-1/2
3.5000
5-3/8
5.375
5.200
6.207
5.928
3-7/16
3.506
3.370
3-3/4
3.7500
5-3/4
5.750
5.562
6.640
6.341
3-11/16
3.670
3.616
4
4.0000
6-1/8
6.125
5.925
7.073
6.755
3-15/16
4.014
3.862

Duplex / Super Duplex Steel Hex Nuts Dimension

Nominal Size or Basic Major Thread Diameter
F
G
H
Width
Across Flats
Width
Across Corners
Thickness
Basic
Max
Min
Max
Min
Basic
Max
Min
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

We Serve Application Industry

Application Industry
Fasteners applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.

Oil & Gas Industry

Petrochemical Industry

Power Generation Industry

Chemical Industry

Materials

Contact Us For Help?

Contact us at the Industrial nearest to you or submit a business inquiry online.

CONTACT US
Global Steelindia

Global Steel is a significant manufacturer and exporter of all ferrous and non-ferrous metals. As a pioneer and leader in the industry, Global Steel is at the forefront of technology and research.

Quick Contact

Shop No.6, Sonarika Bldg, 25/C, Chandawadi, Cawasji Patel Tank, Mumbai, Maharashtra 400004

COMPANY

Materials

Valves