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Oshwin Overseas is one of India’s fastest growing Industrial Fasteners Manufacturers, Super Duplex Stainless Steel (UNS S32750) Fastener Suppliers catering to the worldwide automobile industry for the last 2 decades. We are specialized in Super Duplex Stainless Steel Fasteners, Aerospace Fasteners, Concrete Fasteners, Industrial Fasteners. Oshwin Overseas was created to provide better service to fastener distributors. Since then, we are working as fastener distributors around the globe. Oshwin Overseas manufacturing facilities are housed in a state of the art plant with a capacity to produce 26000 MT of Fasteners per annum.
Oshwin Overseas have a wide range of Super Duplex S32750 Steel Fasteners. We Offer all Fasteners as per DIN/ISO/IS/EN/ASTM & ASME Standards. Types of Fasteners include Bolts, Screw, Nuts and Washer. Bolts is further divided into types of bolts like U Bolts, Machine Bolt, Hex Bolts, Hex Head Bolt, Lag Bolts, Eye Bolt, Scraper Blade Bolts, Step Bolt, Anchor Bolt, Elevator Bolts, Tap Bolts, Stove Bolt, Hanger Bolt, U Bolt, Plow Bolts, Shoulder Bolt, Flange Bolt, J Bolt, Draw Bolt, Toggle Bolts, Carriage Bolts. Types of Screws include Machine Screws, Socket Head Cap Screw, Socket Screw, Machine Screw, Self Drilling Screw, Wood Screw, Tapping Screw, Thread Cutting Screw, Grub Screw, Set Screw, Hex Cap Screw, Flat Head Cap Screw, Socket Cap Screw, L-9 Hi-Head Cap Screw, SQ Head Set Screw. Types of Nuts are Hex Domed Cap Nuts, 2-H Heavy Hex Nuts, Acorn Nuts, Heavy Hex Nuts, Jam Nuts, Kemp Nuts, Nylon Insert Lock Nuts, Slotted Nut, High Nut, Castle Nut, Custom Nut, Serrated Flange Nut, Auto Lock Nuts, Coupling Nuts, Slotted Nuts, Square Nuts, Wing Nuts, Flex Lock Nut, 2 Way Lock Nut, Cap Nut, K Lock Nut, T Tee Nuts, Flange Lock Nut. Types of Washer include A-325 Flat Washer, Fender Washer, Internal Tooth Lock, External Tooth Lock, Plain Washer, Square Washer, Dome Plain Washer, Countersunk Washer, Dock Washer, Ogee Washer, Bevel Washer, Flat Washer, Split Lock Washer, Hexagonal Washer, Dome Tooth Washer, etc.
All Super Duplex S32750 Fasteners, Types of Fasteners, Types Of Bolts, Types Of Screws, etc are offered with a NACE 3.1 Certification, Mill Test Certification and ISO 17025 Standards by a Government of India approved Laboratory. Positive Material Identification is done on all raw materials procured at Oshwin Overseas. Oshwin Overseas Export Super Duplex Stainless Steel (UNS S32750) Fastener (EN 1.4410) to Petrochemical Plants, Nuclear Power Projects, Oil & Gas Industries in South Africa, Australia, New Zealand, Gambia, Ghana, Guinea, Nigeria, Egypt, Morocco, Sudan, Kenya, Mozambique, Zimbabwe, Madagascar, Tunisia, Saudi Arabia, Kuwait, Qatar, U.A.E & Turkey.
Super Duplex (UNS S32750) Fasteners Specification :-
Specifications : ASTM A182, ASME SA182, F53.
Dimensions : DIN, ASTM, BS and all International Standards.
Size : M10 to M100.
Length : UPTO 5 METERS.
Grade : EN 1.4410, UNS S32750.
Forms : Hex, Square, Round, Threading as per Gauge Etc.
Types : Bolts, Nuts, Screws, Sockets, Studs, Screw, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw, Washers, Spring Washers, Anchors, Marine Anchors, Nut, Hexagon Nut, Hex Nut, Hex Coupling Nut, Hex Domed Cap Nuts, Square Nut, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolt, U- Bolts, J Bolts, Mushroom Head Square Neck Bolts, T-Head Bolts, Wing Screw, Eye Bolt, U Bolts, Foundation Bolts, Structural Bolts.
Our Super Duplex S32750 Stainless Steel Fasteners conforms to NACE MR0175/ISO 15156.
Types of Super Duplex Fasteners (UNS S32750)
|Machine Bolt||Scraper Blade Bolts||Plow Bolts|
|Hex Head Bolt||Step Bolt||Shoulder Bolt|
|Hex Bolt||Anchor Bolt||Flange Bolt|
|Stove Bolt||Elevator Bolt||J Bolt|
|Lag Bolts||Tap Bolts||Draw Bolt|
|Wedge Anchors||Hanger Bolt||Toggle Bolts|
|Eye Bolt||U Bolt||Carriage Bolts|
Types of Screw
|Machine Screws||Socket Cap Screw / Head Cap Screws|
|Self Drilling Screw||Hex Cap Screws Flat|
|Wood Screws||Grub Screw / Set Screw|
|Tapping Screws||L-9 Hi-Head Cap Screws|
|Thread Cutting Screws||SQ Head Set Screws|
Types of Nuts
|Heavy Hex Nuts||High Nut / Coupling Nuts|
|Acorn Nuts||Flange Lock Nut|
|Cap Nut||Square Nuts|
|Jam Nuts||Serrated Flange Nut|
|Keps Nuts||Wing Nuts|
|Nylon Insert Locknut / Auto Locknuts||Flex Lock Nut|
|Slotted Nut / Castle Nut||K Lock Nut|
Types of Washer
|Flat Washers||Countersunk Washers||Dome Tooth Washers|
|Flat Washers – SAE / USS||Dock Washers||Dome Plain Washers|
|Fender Washers||Ogee Washers||Plain Washers|
|Internal Tooth Lock||Bevel Washers||Square Washers|
|External Tooth Lock||Hexagonal Washers||Split Lock Washers|
- Super Duplex (S32750) Standards
- Super Duplex (S32750) Fasteners Product Specifications
- Super Duplex (S32750) Fasteners Dimensions
|Grade||Type||Unified Numbering System (UNS)||Forgings Grades||Werkstoff-nr.||Euronorm||AFNOR||DIN Standards|
|2507||Super Duplex||S32750||F53||1.4410||en 1.4410||X2CrNiMoN25-7-4||Z3CN25.06Az||din 1.4462|
|Material - Duplex Fasteners UNS S32750||Form||Raw Material||Dimension Standard||Specification|
|Super Duplex Washer||Machine Washer, Split Washer, Slotted Washer, Sealing Washer, Tooth Washer, Star Washer, Spring Washer Heavy Duty, Spring Lock Washer, Plain Washer, Flat Washer||DIN 6928, 571, 7973, 910||UNS S32750 Duplex SS Fasteners|
|Super Duplex Nuts||Hex Nut, Hex Coupling Nut, Flange Nut, Eye Nut, T-Nut, Wing Nut, Self Locking Nut, Square Nut, Lock Nut, Panel Nut, Acorn Nut||Super Duplex Stainless Steel Round Bar and Super Duplex Stainless Steel Forging||DIN 979, 929, 6923, 6334, 980, 985, 934, 986, 1587, 935||Super Duplex Stainless Steel Fasteners|
|Super Duplex Bolts||Socket Hexagon Head Screw Anchor Bolts,J Bolts|
, Mushroom Head Square Neck Bolts, Foundation Bolts, U-Bolt, T-bolt, Square head bolt, lag bolt, hex head bolt, eye bolt, counter sunk bolt
|DIN 931, 601, 6914, 6915, 601||Fasteners Super Duplex Stainless Steel|
|Super Duplex Screw||Panel Screw, Clotter Pin, Solid Rivet, Blind Rivet, Anchor Screw, Threaded Rod, Threaded Cutting Screw, Steel Lag Screw, Self Drilling Screw, Machine Screw, Steel Shoulder Screw, Socket Cap Screw, Cap screw, Hexagon Socket , Set Screw With Dog Point, Hexagon Socket Set Screws With Cup Point, Imprial Socket Cap Screws, Pan Phillipse Head Screw, Socket Head , Shoulder Screws, Countersunk Raised Head Slotted Screws||DIN 912, 916, 914, 6921, 933, 913||UNS S32750 Duplex Fasteners|
|Fasteners||Socketweld,SCREWED, NPT, BSP, BSPT||1/4" NB to 4" NB in Class 2000, 3000, 6000, 9000|
Super Duplex S32750 Properties
- High Resistance to uniform corrosion.
- High Resistance to pitting & crevice corrosion.
- High Resistance to stress corrosion cracking & corrosion fatigue
- High mechanical strength
- High Resistance to abrasion & erosion
- High Resistance to Fatigue
- High energy absorption
- Low thermal expansion
- Good weld ability with care in thick sections
- Useful up to 600°F
Super Duplex S32750 Applications
- Chemical Processing Industry – Transport and Storage, pressure vessels, tanks, piping, and heat exchangers.
- Oil and Gas exploration and processing equipment – piping, tubing, and heat exchangers
- Marine Industry and Seawater systems – Cargo Tanks for Ships, High chloride environments,
- FGD / Effluent Scrubber Systems.
- Paper and Pulp Industry Digesters, Bleaching equipment and Stock-Handling Systems, Chip Pre-steaming vessels.
- Food Processing Equipment.
- Flue gas desulfurization / cleaning equipment
- Rotors, fans, shafts, and press rolls requiring combined strength and corrosion resistance
- Biofuels Plant, Desalination plants
- Firewalls and blast walls on offshore platforms
- Super Duplex S32750 Chemical Composition
- Super Duplex S32750 Mechanical Properties
- Super Duplex S32750 Physical Properties
|UNS S32750||0.030 Max||24.0-26.0||1.20 Max||3.0-5.0||6.0-8.0||0.24-0.32||0.035 Max||0.80 Max||0.020 Max|
|0.2% Proof Stress (N/mm2 ) [ksi] minimum||550[79.8]|
|Tensile Strength (N/mm2) [ksi] minimum||800 |
|Elongation (%) minimum||25|
|Hardness (HBN)||270 max|
|Reduction of Cross Section Area (%)||45|
|Young’s Modulus (N/mm2)||199 x 103|
|Specific Heat, 20°C (J.Kg-1.°K-1)||475|
|Fracture Toughness, Kq (MPa.m)||475|
|Specific Electrical Resistance, 20°C (µO.m)||0.80|
|Thermal conductivity, 20°C||14.2|
|Mean coefficient of thermal expansion||11.1 x 10-6|
- Commercial Invoice including HS Code
- Packing List including number of boxes, net weight, gross weight, Marks & Numbers
- Certificate of Origin legalized/attested by Chamber of Commerce or Embassy
- Material Test Certificates as per EN 10204 3.1, EN 10204 3.2
- Test Certificates certifying NACE MR0103, NACE MR0175
- Positive Material Identification – PMI Testing
- Chemical Analysis – Spectro Analysis
- Mechanical Testing Such as Tensile, Elongation, Reduction of Area
- Hydrogen-Induced Cracking (HIC) Test, NACE TM0284
- Sulfide Stress Corrosion Cracking (SSC), NACE TM 0177
The different ways in which our products are packed are:
- Wooden Boxes
- Wooden Pallets
- Wooden Crates
- Carton boxes
We mark Duplex 2205 as needed with the most suitable & visible marking techniques. Standard Marking System :-
- Manufacturer’s Name or Trademark
- Material Designation
- Size Designation
- Rating Designation
- Melt Designation
- Marking for Identification
Leading Supplier, Manufacturer Exporter
More than 30 years of Experiance
Mill Test Report Provided
In Accordance with EN10204 NACE 3.1, NACE 3.2
Warehouse near to Airport & Port.
Efficient & Cost Effective Shipping Services
We Offer EXW – Ex Works, FOB, CFR, CIF, DDU, etc.
3rd Party Inspection is Carried out
ISO 9001:2008 Certified
Transparent client dealing, No False Assurance, 100% Fulfillment of Commitments.
Export to more than 70 Countries Worldwide
Competitive pricing is offered