PREN > 40
High Pitting Resistance Alloy
S32750 & S32760
Dual Super Duplex Grades
25+ Countries
Trusted Global Exporter
NACE MR0175
Sour Service Compliant
ASTM & DIN
Standards Compliant Fasteners
Xylan, PTFE & Teflon
Special Coating Options
Subsea Ready
Offshore & Desalination Grade
Direct Mill Pricing
No Middleman Markup

Super Duplex 2507 Fasteners Snapshot
Metric Range
M6 to M64
Imperial Range
1/4″ to 3″
Length
10mm to 500mm
Standard
ASTM A182 F53, F55, DIN 1.4410
Grade
UNS S32750 & UNS S32760
MTC
EN 10204/3.1B
Environment
Seawater & Sour Gas
Thread Type
Full Thread & Stud Bolt
Coating
Xylan, PTFE, Teflon, Plain
Temp. Range
-50°C to 300°C
Table of Content
- Super Duplex 2507 Fasteners Specification
- Super Duplex Hex Bolt Size Chart
- 25cr Duplex Nut Size Chart
- UNS S32760 Hex Bolt Thread Types
- Super Duplex 2507 Bolts Torque Chart
- Difference bETWEEN Super Duplex 2507 vs Duplex 2205 Fasteners
- Price List of Super Duplex 2507 Bolts
- How Buyers Verify Genuine SDSS 2507 Fasteners?
- Types of Super Duplex Fasteners
- Super Duplex Stainless Steel Bolts and Nuts Applications
- Super Duplex Threaded Rod Manufacturing & Testing Process
- Super Duplex 2507 Washers Hardness
- 2507 Super Duplex Stainless Steel Screws Strength
- SDSS 2507 Stud Bolt vs Threaded Rod
- Super Duplex 2507 Fasteners Chemical Composition
- Super Duplex Fasteners Corrosion Tests
- SAF 2507 Flange Bolt Mechanical Properties
- Documents and Certificates You Receive With Every Order
- SDSS 2507 Fasteners Equivalent Grades
- Payment and Shipping Terms for Super Duplex 2507 Fasteners
ISO Certified UNS S32760 Stud Bolt Manufacturer in India
Vision Alloys, established 2015, is an industry veteran. We supply fasteners across USA, Canada and UK. Trusted partner in Mexico, Singapore and Germany regions. We offer stainless steel, nickel alloy fastener grades. Serving Spain, South Africa, Poland and Netherlands markets. We export Super Duplex fasteners to Saudi Arabia regularly. Every batch carries ISO Certified quality assurance standards. We provide Quality Assurance Plan with every order.
Vision Alloys supplies Super Duplex 2507 Fasteners worldwide reliably. We stock Super Duplex Stainless Steel Bolts and Nuts. Duplex and Super Duplex grades always kept stocked. Certificate of Origin accompanies each fastener shipment. Qatar projects use our Super Duplex 2507 fasteners. Widely used across offshore Oil and Gas platforms.Trusted fastener choice for Marine and Offshore projects. Our fasteners are PED Approved and CE Approved.

SDSS 2507 Stud Bolt
- Double End Configuration
- ASTM A182 / A193 Grade
- Seawater & Sour Gas Resistant

Super Duplex Nuts
- Heavy Hex & Standard Hex
- ASTM A194 Grade 7
- Sizes M6 to M64

Super Duplex 2507 Washers
- Flat & Spring Washers
- Load Distribution & Sealing
- Custom Thickness Available
- M1.2 – M48
- M3 – M36
- 12 – 1200mm
- Fine
- Coarse
- Cold Forging
- CNC Machined
- Hot Forging
- A
- D
- C
- G
- B
- E
- 1446 °C (2635 °F)
- ASTM A479/A276
- ASME SA479/SA276
- Nickel 200
- Nickel 201
- Plain, Electric galvanized
- Phosphating, Zinc impregnation
- Oxidation, DACROMET
- CNC Lath
- Thread Rolling
- Making Machines
- 100% Tested Super Duplex 2507 Bolts with MTC EN 10204 3.1/3.2

- UN8
- BSW
- ACME
- UNF
- UNR
- UNM
- BSF
- UTS
- UNC
- bolt
- nuts
- screws
- washers
- stud bolt
- threaded rod
- hex bolt
- Chamfer end
- Semi-cone point
- Milled end
- 45 degree angle cut
- Chisel point
- Gimlet point
- Oval
- Pan
- Cross
- Truss
- Torx
- Round
- Hex
- Hexagon washer
- Flat
- Phillips Drive
- Socket cap head
- Button head
- Slotted Drive
- Slotted hex washer
- Hex washer head
- Pan
- Hex head
- Oval
- Frearson Drive
- Combination Drive
- Truss
- Class 2A (Medium fit)
- 2G
- 5 ONF
- 3G
- 4G
- custom
- 5 CSF
- Class 1A (Loose fit)
- 6G
- Class 3A (Tight fit)
- 5 HF
- 8G
Request For Quote
Get Instant Pricing From Super Duplex 2507 Fasteners Supplier
Buy SDSS 2507 Bolts and Nuts at Low Cost Worldwide
Grade & Type Guide
SAF 2507 Fasteners Grade and Type Guide
S32750UNS
80 / 116 ksiYield / Tensile
PREN > 40Corrosion Use
Super Duplex Hex Bolt
M6–M64, ASME B18.2.1
SDSS 2507 Stud Bolt
Continuous thread, double end
Super Duplex Nuts
ASTM A194, heavy hex
SAF 2507 Flange Bolt
Subsea & pipeline joints
S32760UNS
80 / 109 ksiYield / Tensile
Cu + W AlloyedCorrosion Use
UNS S32760 Stud Bolt
M6–M64, ASME B18.2.1
Super Duplex Threaded Rod
Cut to length, both ends threaded
Super Duplex Hex Nut
High torque flange joints
Zeron 100 Flange Bolt
Sour service, NACE MR0175
S32205UNS
65 / 95 ksiYield / Tensile
PREN ~ 35Corrosion Use
Duplex 2205 Hex Bolt
M6–M56, ASME B18.2.1
Duplex 2205 Stud Bolt
Economy alternative to 2507
Duplex 2205 Nut
Structural bolting
Duplex 2205 Flange Bolt
General chemical service
S32304UNS
58 / 87 ksiYield / Tensile
Lean DuplexCorrosion Use
Duplex 2304 Hex Bolt
M6–M48, ASME B18.2.1
Duplex 2304 Stud Bolt
Low Mo, budget duplex
Duplex 2304 Nut
Architectural & structural use
Duplex 2304 Flange Bolt
Mild chloride exposure
Supplier of WNR 1.4410 Hex Bolts in Different Sizes With EN 10204 3.1 / 3.2 Certificates
Vision Alloys is Super Duplex 2507 Fasteners Supplier in India, Supply SDSS 2507 Hex Bolt, Studs, Cap Screws and Threaded Rod in Various Sizes at Low Cost

| NOMINAL SIZE (D) | m12 | m20 | m24 | m14 | m16 | m10 | m30 | m100 | |
|---|---|---|---|---|---|---|---|---|---|
| ACRO THE FLATS | F (MIN) | 17.73 | 29.16 | 35 | 20.67 | 23.67 | 15.73 | 45 | 140 |
| F (MAX) | 19 | 30 | 36 | 22 | 24 | 17 | 46 | 145 | |
| HEAD THICKNESS | H (MIN) | 4.24 | 12.12 | 14.56 | 8.51 | 9.68 | 6.17 | 17.92 | 60.1 |
| H (MAX) | 7.76 | 12.88 | 15.44 | 9.09 | 10.32 | 6.63 | 19.48 | 63.9 | |
| BODY DIA. | D (MIN) | 11.73 | 19.67 | 23.67 | 13.73 | 15.73 | 9.78 | 29.67 | 99.13 |
| D (MAX) | 12 | 20 | 24 | 14 | 16 | 10 | 30 | 90 | |
| ACRO CORNERS | C (MIN) | 20.03 | 32.95 | 39.55 | 23.35 | 26.75 | 17.77 | 50.85 | 159.6 |
| C (MAX) | 20.78 | 34.64 | 41.57 | 24.25 | 27.71 | 18.48 | 53.12 | 167.43 | |
| NOMINAL SIZE (D) | m48 | m36 | m72 | m56 | m64 | m42 | m80 | m90 | |
| ACRO THE FLATS | F (MIN) | 72.6 | 53.8 | 101.4 | 82.2 | 91.8 | 62.9 | 111 | 125.5 |
| F (MAX) | 75 | 55 | 105 | 85 | 95 | 65 | 115 | 130 | |
| HEAD THICKNESS | H (MIN) | 28.93 | 21.63 | 43.55 | 33.8 | 38.68 | 25.03 | 48.42 | 54.26 |
| H (MAX) | 31.07 | 23.38 | 46.45 | 36.2 | 41.32 | 26.97 | 51.58 | 57.74 | |
| BODY DIA. | D (MIN) | 47.38 | 35.61 | 71.26 | 55.26 | 63.26 | 41.38 | 79.26 | 89.13 |
| D (MAX) | 48 | 36 | 72 | 56 | 64 | 42 | 80 | 90 | |
| ACRO CORNERS | C (MIN) | 82.76 | 60.79 | 115.6 | 93.71 | 104.65 | 71.71 | 126.54 | 143.07 |
| C (MAX) | 86.6 | 63.51 | 121.24 | 98.15 | 109.7 | 75.06 | 132.72 | 150.11 |

| UNS S32750 Nut Dia* | (mm) | 5 | 8 | 5.5 | 7 | 4 | 30 | 19 | |
|---|---|---|---|---|---|---|---|---|---|
| Super Duplex 32750 Nut Size | (mm) | 2.5 | 5 | 3 | 4 | 2 | 20 | 12 | |
| Height | (mm) | Jam Nut | 1.6 | 2.7 | 1.8 | 2.2 | 1.2 | 10 | 6 |
| Hex Nut | 2 | 4 | 2.4 | 3.2 | 1.6 | 16 | 10 | ||
| Nylock Nut | – | 5 | 4 | 5 | – | 20 | 12 | ||
| Dia* | (mm) | 22 | 11 | 13 | 17 | 10 | 24 | 27 | |
| Nut Size | (mm) | 14 | 7 | 8 | 10 | 6 | 16 | 18 | |
| Height | (mm) | Jam Nut | 7 | 3.5 | 4 | 5 | 3.2 | 8 | 9 |
| Hex Nut | 11 | 5.5 | 6.5 | 8 | 5 | 13 | 15 | ||
| Nylock Nut | 14 | – | 8 | 10 | 6 | 16 | 18.5 |
Stockist of UNS S32750 Threaded Rod With Metric Fine, UNC and BSF Threads at Lowest Price in Mumbai
CE Approved Super Duplex 2507 Fasteners Supplier in India, Offering Multiple Thread Profiles and Pitch Standards
UNC Unified Coarse
General purpose thread, fast assembly, standard tap fit
UNF Unified Fine
Finer pitch, higher tensile area, vibration resistant
Metric Coarse ISO 261
M6 to M64 range, DIN 13 profile, most common
Metric Fine ISO 262
Tighter pitch, precision flange & pump fitting
BSW British Standard Whitworth
Rounded root profile, legacy pipeline hardware
BSF British Standard Fine
Fine Whitworth profile, low vibration loosening
UNR Rolled Root Radius
Cold-rolled thread, higher fatigue strength
ACME Trapezoidal Thread
Load-bearing lead screw & valve stem use
Check Super Duplex 2507 Fasteners Manufacturer in India who provides wide Stock along with suggested tightening torque values
| WNR 1.4410 Bolt Nominal Dia (in) | 1/4″ | 5/16″ | 3/8″ | 7/16″ | 9/16″ | 1/2″ | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Torque ft-lb (Lubricated) | 5.5 | 6.3 | 12.6 | 11.4 | 22.8 | 20.2 | 36 | 32.3 | 71 | 79.1 | 49.1 | 55.4 |
| Threads (in) | 20 | 28 | 24 | 18 | 24 | 16 | 20 | 14 | 12 | 18 | 13 | 20 |
| Torque ft-lb (Dry) | 7.4 | 8.4 | 16.8 | 15.1 | 30.4 | 26.9 | 48 | 43 | 94.5 | 105.5 | 65.6 | 73.9 |
| Nominal Dia (in) | 5/8″ | 3/4″ | 7/8″ | 1″ | 1-1/2″ | 1-1/4″ | ||||||
| Torque ft-lb (Lubricated) | 97.9 | 110.9 | 194 | 174 | 309 | 280 | 471 | 420 | 1271 | 1430 | 730 | 809 |
| Threads (in) | 11 | 18 | 16 | 10 | 14 | 9 | 14 | 8 | 6 | 12 | 7 | 12 |
| Torque ft-lb (Dry) | 130.5 | 147.8 | 258 | 232 | 412 | 373 | 628 | 560 | 1696 | 1908 | 975 | 1079 |
Grade Comparison
Difference bETWEEN Super Duplex 2507 vs Duplex 2205 Fasteners
Standard Duplex Grade
3.0–3.5%
~35
General chemical plants
Onshore piping
Super Duplex Grade
3.0–4.5%
>40
Desalination plants
Sour gas service
ISO Certified Super Duplex Fastener Manufacturer in India, Supplying SDSS Bolts in Various Threads
$
Price List
Price List of Super Duplex 2507 Fasteners
Super Duplex 2507 Fasteners Manufacturer, Buy SDSS Bolts and Nuts at Lowest Export Price
Check Heat Number Marking
- Heat number stamped on bolt head
- Matches heat number on the MTC
- Traceable to raw material heat batch
Request a PMI Test Report
- Positive Material Identification scan
- Confirms Cr, Ni, Mo, N content
- Verifies UNS S32750 / S32760 grade
Cross-Check Grade Marking
- Grade symbol embossed on head
- Manufacturer identification mark
- Confirms against ASTM A182 F53/F55
Request For Quote
Get a Direct Quote From the Super Duplex 2507 Fasteners Manufacturer
Get SDSS Fasteners in various thread types at factory price, fast delivery in Europe and Saudi
Exporter of Super Duplex Stainless Steel Bolts and Nuts and WNR 1.4501 Studs Hardness for Offshore and Automotive Industry
Obtain Super Duplex 2507 Fasteners Manufacturer in India Who Offering Various Types

Super Duplex 2507 Bolt
- Hex head, ASME B18.2.1 dimensions
- UNS S32750 super duplex grade
- PREN >40 corrosion resistance

UNS S32760 Nuts
- Heavy hex & standard hex
- ASTM A194 grade 7
- Cu & W enhanced alloy

DIN 1.4410 Screw
- Machine & self-tapping types
- Metric coarse thread
- High torque resistance

Alloy 2507 Stud Bolt
- Double end configuration
- ASTM A182 / A193 grade
- Flange & valve bolting

SDSS Washers
- Flat & spring types
- Load distribution & sealing
- Custom thickness available

UNS S32750 Hex Bolt
- Standard six-sided head
- M6 to M64 size range
- Subsea & offshore use

DIN 1.4410 Threaded Rod
- Full length threading
- Cut to custom lengths
- Variable clamping thickness

UNS S32760 Eye Bolt
- Lifting & anchor point use
- Forged loop head
- High tensile strength

Super Duplex Flat Washer
- Even load distribution
- Corrosion resistant finish
- Standard & custom OD

Super Duplex 2507 Square Bolt
- Square under-head shank
- Anti-rotation design
- Structural fastening use

SAF 2507 Flange Bolt
- ASME B16.5 flange fit
- PTFE & Xylan coated
- Pipeline & pump joints

DIN 1.4410 Lock Nut
- Nylon insert or all-metal
- Vibration resistant locking
- Reusable thread engagement

SDSS Heavy Hex Bolt
- Wider bearing surface
- ASTM A193 grade B8S
- High clamp load rating

1.4410 Super Duplex Set Screw
- Headless, fully threaded
- Socket or slotted drive
- Positioning & locking use

2507 Duplex Stainless Steel Machine Screw
- Machine thread precision
- Pan, flat or oval head
- Electrical & panel assembly use
Applications
Super Duplex Stainless Steel Bolts and Nuts Applications
Oil & Gas
Marine & Offshore
Desalination Plants
Chemical Processing
Power Generation
Structural Steel Work
Pulp & Paper
Subsea Pipelines
- Hot Forging
- Cold Heading
- Tensile Testing
- Hardness Testing
- PREN & Ferrite Testing
- TPI Available On Request
Get A Super Duplex 2507 Fasteners Stockist Provides a Accurate Hardness.
Super Duplex S32750 Hardness
- Brinell Hardness — 290 HB max
- Rockwell C — 31 HRC max
- Vickers Hardness — 305 HV max
- Standard — EN 10088-3 / ASTM A182 F53
Super Duplex S32760 Hardness
- Brinell Hardness — 300 HB max
- Rockwell C — 32 HRC max
- Vickers Hardness — 315 HV max
- Standard — EN 10088-3 / ASTM A182 F55
Check Super Duplex Threaded Rod Chemical Composition and Mechanical Properties Before Buying the Materials
Tensile Strength
Yield Strength
Fastener Configuration
SDSS 2507 Stud Bolt vs Threaded Rod
SDSS 2507 Stud Bolt
Plain Center
Thread
- Threaded both ends only
- Length set to flange spec
- Used with two heavy hex nuts
Super Duplex Threaded Rod
- Threading runs entire rod length
- Cut to custom lengths on site
- Nut position stays fully adjustable
View Super Duplex 2507 Fasteners Stockist, Provides Different Grades Composition Chart
SAF 2507
C0.03 max
Si1.00 max
P0.035 max
Cr24.0 – 26.0
S0.015 max
Ni6.0 – 8.0
Mo3.0 – 4.5
N0.24 – 0.35
Zeron 100
Cu + W Alloyed
C0.03 max
Si1.00 max
P0.030 max
Cr24.0 – 26.0
S0.010 max
Ni6.0 – 8.0
Mo3.0 – 4.0
Cu0.50 – 1.00
W0.50 – 1.00
N0.20 – 0.30
Super Duplex 2507 Fasteners Supplier for Subsea and Offshore Projects
Super Duplex 2507 Bolts
Best Corrosion Resistance
185 °F
42
Discover Super Duplex 2507 Fasteners Supplier in India Who Offer High Strength use in Various Applications
UNS S32750
HB 310 max
PREN >40
UNS S32760
HB 300 max
PREN >40
PED Approved Super Duplex 2507 Fasteners Stockist, Offering High Strength for Offshore Applications
EN 10204 3.1
Chamber Attested
Item-wise
SGS / BV / TUV
Batch-wise
Wooden Packing
Per Piece Scan
As Per PO
Equivalent Grade Chart for Global Buyers Sourcing Super Duplex 2507 Fasteners
Project Reference
Super Duplex 2507 Bolts Client Reference
United Arab Emirates
Offshore Platform Expansion
Saudi Arabia
Sour Gas Wellhead Project
Norway
Subsea Pipeline Tie-In
Singapore
Desalination Plant Fabrication
Australia
LNG Terminal Piping
Brazil
Petrochemical Refinery Upgrade
Vision Alloys is Super Duplex 2507 Fasteners Manufacturer in India, Offers SDSS Bolts and Nuts at Low Cost in Mumbai
T/T, LC at Sight
5 Pieces
FOB, CIF, EXW
On Request
4–30 Days
Wooden Box / Pallet
Request For Quote
Get a Quote From Super Duplex 2507 Fasteners Stockist in India
Get Certified Super Duplex Fasteners With Fast Global Export Delivery
Buyer Questions
What Buyers Ask Before Placing an Order
Is there a minimum order quantity for Super Duplex 2507 fasteners?
Which payment terms and export documents do you provide?
How do I verify the mill test certificate is genuine before paying?
Global Reach
Where We Supply Super Duplex 2507 Bolts
Countries & Cities Served Worldwide
North & South America
🇨🇦 Canada
🇲🇽 Mexico
🇧🇷 Brazil
Europe
🇪🇸 Spain
🇵🇱 Poland
🇳🇱 Netherlands
🇩🇪 Germany
🇮🇹 Italy
🇮🇪 Ireland
🇩🇰 Denmark
Middle East
🇸🇦 Saudi Arabia
🇶🇦 Qatar
🇹🇷 Turkey
📍 Doha
📍 Dammam
📍 Riyadh
📍 Abu Dhabi
📍 Al Jubail
📍 Al Khobar
Africa
🇳🇬 Nigeria
Asia Pacific
🇦🇺 Australia
Request For Quote
Send Your Enquiry for Super Duplex 2507 Fasteners
Custom Sizes and Coatings Available on Bulk Fastener Orders
FAQs
Super Duplex 2507 Fasteners
What is Super Duplex 2507 made of?
25Cr-7Ni-4Mo-N alloy, UNS S32750.
What sizes does Vision Alloys stock?
M6 to M64, custom sizes on request.
Is Super Duplex 2507 suitable for seawater?
Yes, PREN >40 resists chloride pitting.
Do you provide a mill test certificate?
Yes, EN 10204/3.1 MTC with every batch.
What is the PREN value of Super Duplex 2507?
PREN 42, versus ~35 for Duplex 2205.
What is the difference between S32750 and S32760?
S32760 adds Cu and W for sour service.
What is the tensile strength of Super Duplex 2507 bolts?
800 MPa min tensile, 550 MPa min yield.
Are these fasteners suitable for sour gas service?
Yes, NACE MR0175 compliant material available.
What coatings are available on these fasteners?
Xylan, PTFE and Teflon coatings offered.
Vision Alloys is rated 3.8/5 based on 4 reviews on Google.
★★★★★
“Quality product and fast delivery. Contacted sales team and received great price and fantastic service for 304 stainless steel fasteners.”
★★★★★
“Trusted and Comprehensive Indian Steel Distributor, Supplier, Stockist, Manufacturer and Trader.”
★★★★☆
“India’s top most steel Distributor stockist and supplier.”
★☆☆☆☆
No written review provided.
- Vision Alloys is A Manufacturer of Steel Fasteners Company in India
- Dealers and Distributors of Bolting Products in USA, Europe, New Zealand, Algeria, United Kingdom, Morocco, South Africa and Australia, Egypt, Peru, chile, Jordan, Argentina
- Manufacturer and Supplier of Stainless Steel, Nickel Alloy, Titanium, Copper Materials in Mumbai.
- Stockist and Trader of Top Quality High Temperature Alloys for Oil and Gas Industry and Standard & Custom Sizes in EX Stock
