Duplex Fasteners

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Duplex Fasteners

Duplex Fasteners At a Glance

  • Sizes in Stock : M1.2 – M48
  • Condition : Drawn & Cold Threading
  • Certificates :EN 10204/3.1B
  • Type of Steel : Combines Ferritic & Austenitic
  • Free Sample Provided ? : Yes
  • Environments : Saltwater & Chloride

 

Best Quality Leading DSS Bolt & Nuts Manufacturer in India

Duplex Steel Fasteners

Duplex Steel Fasteners

Duplex Stainless Steel Fasteners

Duplex Stainless Steel Fasteners

Duplex Stainless Fasteners

Duplex Stainless Fasteners

 

Why should buyers choose KM Steel India Duplex Bolts to prevent corrosion?

Duplex bolts offer resistance to:

  • Saltwater
  • pitting and crevice corrosion
  • Sulfide stress corrosion resistance
  • Oxidation

 

Supplier of Duplex SS Hex Bolt With Polished Surface, and View Specification

Duplex Fasteners specification

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Duplex Fasteners Specifications

Sizes

Duplex Fasteners Sizes

  • Bolts : M1.2 To M48
  • Screw : M1.2 To M48
  • Threaded Rod : M4 To M45
  • Nut : M2 To M20

Threads

Duplex Stainless Steel Bolts Threads

  • UNC BSF
  • BSW
  • UNF
  • METRIC

 

Testing Methods

Duplex Steel Hex Bolt Testing Methods

  • Rockwell / brinell hardness test
  • Tensile test
  • Charpy V-notch test
  • Microstructure analysis
  • Impact testing

Surface Finish

DSS Washers Surface Finish

  • Phosphating
  • Oxidation
  • Zinc impregnation
  • DACROMET, HDG
  • Electric galvanized

 

 Ends

Duplex Stainless Nut Ends

  • Saw cut
  • Rounded
  • Chamfer, Flat
  • Sheared

 

Features

Stainless Steel Duplex Hex Bolt Features

  • High Yield Strength
  • Improved Corrosion Protection
  • Low Thermal Expansion
  • High durability
  • Easy installation

 

Condition

Duplex Nuts and Bolts Condition

  • Threading
  • Cold Drawn

 

Thread Pitch

SA 276 Duplex Socket Head Cap Screws Thread Pitch

  • Fine Threads
  • Coarse Threads

 

Standard

Duplex SS Hex Bolt American Standard

  • ASTM A276
  • ASTM A479
  • ASTM A182

Process

ASTM A276 Duplex Steel Process

  • Hot Forging
  • Cold Forging
  • CNC machined

 

Packaging

Packaging of ASTM A276 Duplex Steel Hex Bolts

  • Corrugated Box
  • Carton
  • Small Pack
  • Pallet

Marking

SA 276 Duplex Threaded Bolts Marking

  • Specification
  • Material grade
  • Heat number
  • Custom logo

 

 

Application

Duplex SS Alloy Threaded Bolts Application

  • Flange joints
  • Petrochemical plants
  • Rigs
  • Bridge construction

Delivered Areas

Duplex Steel Flange Bolts Delivered Areas

  • Oman, Saudi Arabia
  • UAE, Abu Dhabi
  • Algeria, South africa
  • USA, Dubai

 

Types of Duplex Fasteners

Duplex Fasteners Supplier in India Offers a Variety of The Most Popular Types.

Duplex Steel Bolt in Stock

 

DSS Hex Head Bolt

DSS Hex Head Bolt

 Duplex Stainless Steel Flange Bolts

Duplex Stainless Steel Flange Bolts

Duplex SS Square Head Bolts

Duplex SS Square Head Bolts

 

ASTM A276 Duplex Steel Eye Bolts

ASTM A276 Duplex Steel Eye Bolts

Duplex SS Alloy J-Bolts

Duplex SS Alloy J-Bolts

Duplex Steel Flange Bolts

Duplex Steel Flange Bolts

 

Duplex Stainless Hanger Bolts

Duplex Stainless Hanger Bolts

ASTM A276 Duplex Steel U-Bolts

ASTM A276 Duplex Steel U-Bolts

SA 276 Duplex Shoulder Bolts

SA 276 Duplex Shoulder Bolts

 

Duplex Stainless Steel Nuts in Stock

 

SA 276 Duplex Heavy Hex Nuts

SA 276 Duplex Heavy Hex Nuts

Duplex Stainless Steel Hex Jam Nuts

Duplex Stainless Steel Hex Jam Nuts

Duplex SS Alloy Keps-K Lock Nuts

Duplex SS Alloy Keps-K Lock Nuts

 

ASTM A276 Duplex Steel Castle Nuts

ASTM A276 Duplex Steel Castle Nuts

Duplex SS Cap Nuts

Duplex SS Cap Nuts

Duplex Stainless Steel Nuts

Duplex Stainless Steel Nuts

 

ASTM A276 Duplex Steel Screw in Stock

 

Duplex SS Hex Cap Screws

Duplex SS Hex Cap Screws

Duplex SS Socket Head Cap Screws

Duplex SS Socket Head Cap Screws

Duplex Stainless Button Head Screws

Duplex Stainless Button Head Screws

 

Duplex Stainless Steel Self Drilling Screws

Duplex Stainless Steel Self Drilling Screws

SA 276 Duplex Machine Screws

SA 276 Duplex Machine Screws

Duplex SS Alloy Wood Screw

Duplex SS Alloy Wood Screw

 

Duplex Stainless Steel Metal Stud Bolts in Stock

 

DSS Full Threaded Stud

DSS Full Threaded Stud

 Duplex Stainless Steel Tap End Stud

Duplex Stainless Steel Tap End Stud

Duplex SS Double End Stud

Duplex SS Double End Stud

 

ASTM A276 Duplex Steel Threaded Rod

ASTM A276 Duplex Steel Threaded Rod

 SA 276 Duplex Bolting Stud Bolts

SA 276 Duplex Bolting Stud Bolts

Duplex Steel Weld Studs

Duplex Steel Weld Studs

 

DSS Washers in Stock

 

Duplex Stainless Fender Washers

Duplex Stainless Fender Washers

 DSS Square Washers

DSS Square Washers

Duplex Stainless Steel Flat Wahers

Duplex Stainless Steel Flat Washers

 

SA 276 Duplex Hastelloy Spring Washers

SA 276 Duplex Hastelloy Spring Washers

 

Tensile Properties of Duplex Stainless Steel Fasteners

Temperatures 122ºF 212ºF 392ºF 572ºF
Tensile Strength 96 ksi 90 ksi 83 ksi 81 ksi

 

DIN Standard For Duplex Steel Bolt and Nuts

DIN Standard Types DIN Standard Types
DIN 529 A Anchor Bolts DIN 186 Square Neck Head
DIN 444 Eye Bolts DIN 580 Lifting Eye Bolts
DIN 478 Square Head Bolts with collar DIN 601 Hex bolts with nut
DIN 609 Hex fits bolts with long thread DIN 607 Half Coach Bolt
DIN 3570 U-bolts DIN 188 Double Nip
DIN 11014 Plough Bolts DIN 261 T-head bolts

 

Dimensions chart of Stainless Steel Duplex Flange Bolt

Bolt Size USS SAE
Thickness OD (in) ID (in) Thickness OD (in) ID (in)
1 .136/.192 2.500 1.062 .108/.160 2.000 1.062
1 1/8 .136/.192 2.750 1.250 .108/.160 2.250 1.250
1 1/4 .136/.192 3.000 1.375 .136/.192 2.500 1.375
1 3/8 .153/.213 3.250 1.500 .136/.213 2.750 1.500
1/4 (#14) .051/.080 0.734 0.312 .051/.080 0.625 0.281
1/8 (#6) – – – .036/.065 0.375 0.156
3/4 .122/.177 2.000 0.812 .108/.160 1.469 0.812
3/16 (#10) .036/.065 0.560 0.250 .036/.065 0.500 0.220
5/32 (#8) – – – .036/.065 0.438 0.188
5/16 .064/.104 0.875 0.375 .051/.080 0.688 0.344
3/8 .064/.104 1.000 0.438 .051/.080 0.812 0.406
7/16 .064/.104 1.250 0.500 .051/.080 0.922 0.469
7/32 (#12) – – – .051/.080 0.562 0.250
9/16 .086/.132 1.469 0.625 .074/.121 1.156 0.594
5/8 .108/.160 1.750 0.688 .074/.121 1.312 0.656
7/8 .136/.192 2.250 0.938 .108/.160 1.750 0.938

 

DSS Heavy Hex Bolts is Used in Automotive industry, Aerospace & SA 276 Duplex Rivets, Check Weight Chart

Weight Chart Of DSS Bolt

Detailed DSS Bolt Weight Chart from Top Duplex Fasteners Manufacturers

Bolt Size USS SAE
Thickness OD (in) ID (in) Thickness OD (in) ID (in)
1 .136/.192 2.500 1.062 .108/.160 2.000 1.062
1 1/8 .136/.192 2.750 1.250 .108/.160 2.250 1.250
1 1/4 .136/.192 3.000 1.375 .136/.192 2.500 1.375
1 3/8 .153/.213 3.250 1.500 .136/.213 2.750 1.500
1/4 (#14) .051/.080 0.734 0.312 .051/.080 0.625 0.281
1/8 (#6) – – – .036/.065 0.375 0.156
3/4 .122/.177 2.000 0.812 .108/.160 1.469 0.812
3/16 (#10) .036/.065 0.560 0.250 .036/.065 0.500 0.220
5/32 (#8) – – – .036/.065 0.438 0.188
5/16 .064/.104 0.875 0.375 .051/.080 0.688 0.344
3/8 .064/.104 1.000 0.438 .051/.080 0.812 0.406
7/16 .064/.104 1.250 0.500 .051/.080 0.922 0.469
7/32 (#12) – – – .051/.080 0.562 0.250
9/16 .086/.132 1.469 0.625 .074/.121 1.156 0.594
5/8 .108/.160 1.750 0.688 .074/.121 1.312 0.656
7/8 .136/.192 2.250 0.938 .108/.160 1.750 0.938

 

Temperature Range for Duplex Stainless Steel Screws

299°C (570°F)

Exporter of Duplex SS Socket Head Cap Screw Perform Hydrostatic Testing, Refer Dimension Chart

Duplex SS Fasteners Dimension Chart

Duplex Fasteners Manufacturer in India offers a wide Range of Dimensions

SIZE M1.6 to M64 M3 to M20 M3 to M12 M4 to M20 M6 to M24 M3 to M10 M3 to M20 M3 to M12 M3 to M20 M6 to M12 M3 to M20 M8 to M22
GRADE 12.9 12.9 12.9 10.9 12.9 12.9 45H 45H 45H 45H 45H –
ASME B18.3.1 M B18.3.5M B18.3.4M B18.3.3M B18.3.6M B18.3.6M B18.3.6M B18.3.6M B18.3.6M
ISO 4762 10642 7380 4028 4027 4029 4026 4029
ASTM A574M F835M F835M F835M F912M F912M F912M F912M F912M

 

DSS Heavy Hex Bolts Torque Chart

Duplex Fasteners Supplier in India provides premium-grade fasteners with a Accurate Torque Values

Diameter (inch) 1/4″ 5/16″ 3/8″ 7/16″ 1/2″ 9/16″ 5/8″ 3/4″ 7/8″ 1″ 1-1/4″ 1-1/2″
Torque ft-lb (Dry) 6.5 7.4 13.2 14.7 23.5 26.6 37.6 42 57.4 64.7 82.7 92.3 114.2 129.3 203 226 326 361 490 549 853 944 1484 1669
Torque ft-lb (Lubricated) 4.8 5.5 10 11 17.7 19.9 28.2 31.5 43 48.5 62.1 69.2 85.7 97 152 170 245 270 368 412 639 708 639 1252
Threads (inch) 20 28 18 24 16 24 16 24 13 20 12 18 11 18 10 16 9 14 8 14 7 12 6 12

 

Hardness Chart of Duplex Scews

Duplex Washers Type Square Section Spring Washer Hardened Washer Flat Section Spring Washer Hardened Steel Washer
SIZE 3mm to 39mm 12mm to 30mm 3mm to 39mm 12mm to 56mm
HARDNESS HV (430 to 530) HV (300 to 370) HV (430 to 530) Rockwell 26 to 45 (HDG) Rockwell 38 to 45 (Coated)
STANDARD DIN 7980 IS 2016 DIN 127 B ASTM F436M

 

Can High-Temperature Applications Use Duplex Fasteners?

Yes, Duplex Fasteners Can Be Used in high-temperature Applications.

 

Benefits of Duplex Fasteners

Top Benefits of Duplex Bolts from Trusted Duplex Fasteners Manufacturers

Benefits of Duplex Fasteners

 

Corrosion Resistance Of Duplex Nuts

Nitric Acid Sour Gas Salt Spray Humidity
Good Moderate Excellent Excellent
Phosphoric Acid Acetic Acid Sulfuric Acid Sea Water
Moderate Good Moderate Moderate

 

Available Grades of Duplex Stainless Steel Fasteners

Grade
2205
2507

 

Applications of SA 276 Duplex Socket Head Cap Screw

Applications of SA 276 Duplex Socket Head Cap Screw

Duplex Alloy Threaded Rod Physical Properties

Density lbm/in3 Electrical Resistivity mW•in Thermal Conductivity (BTU/hr•ft•°F) Heat Capacity BTU/lbm•°F Electrical Resistivity (in x 10-6)
at 68°F 0.278 27.6 8.7 0.112 33.5
at 392°F 25.4 9.8 0.127 37.4
at 572°F 24.9 10.4 0.134 39.4
at 212°F 26.1 9.2 0.119 35.4

 

Stainless Steel Duplex Washer Have High Tensile Strength, Check Mechanical Properties

Duplex Stainless Steel Rivets Mechanical Properties

Duplex Steel Bolt Manufacturer in India Offers Fasteners With Excellent Mechanical Properties

Grade Hardness Elongation
Rockwell C (HR C) (% in 50mm)
UNS S31803 293 max. 25
UNS S32205 293 max. 25

 

Equivalent Grades of Duplex Stainless Steel Hex Nuts

STANDARD STANDARD Duplex 2205
WERKSTOFF NR. Russia 1.4462
UNS North America S31803 / S32205

 

Chemical Composition of Duplex SS Flange Bolt

Grade Mn max S max Mo Cr C max P max Si max N Ni
S31803 2.0 0.02 max 3.5 min 2.5 max 23.0

min 21.0

0.03 0.03 1.0 max 0.20

min 0.08

max 6.5

min 4.5

S32205 2.0 0.02 max 3.5 min 3.0 max 23.0

min 22.0

0.03 0.03 1.0 max 0.20

min 0.14

max 6.5

min 4.5

 

Check out Your Nearby Locations For Fastest Deliveries

Suplier of Duplex Fasteners, Supply DSS Bolt & Nuts in Various Countries

Turkey South Africa Sudan
Australia Kazakhstan Israel
New Zealand Saudi Arabia Morocco
Sri Lanka Iraq Myanmar
Vietnam Singapore South Korea
Cambodia Algeria France
Colombia Ukraine & Egypt Gabon

 

Why Japan and Korea Mostly Buy Duplex Bolts and Nuts From KM Steel India?

Why Japan and Korea Mostly Buy Duplex Bolts and Nuts From KM Steel India

Surface Coatings DSS Hex Bolt

Duplex Bolts Surface Coatings Offered by Leading Duplex Fasteners Manufacturers

  • Mirror Buffed, Hot Dipped Galvanizing
  • Epoxy Coating, Electro Polished
  • Passivation, Teflon Coating
  • Oxidized, Zinc Plating
  • Chrome Plating

Delivery Timetable of Duplex SS Square Nut Suppliers

Country Name Delivery Time
UAE/ Dubai 5 days
Jordan 21 days
South Africa 25-30 days
Saudi Arabia 7 days
Singapore 8 days
Thailand 7 days

Our Piping Products

Why Choose KM Steel India ?

  • ISO & PED Approved Manufacturer & Supplier for Fastening Products
  • Importer and Exporter of Hex Bolts, Threaded Rod, Studs, Socket Head cap screws in Maharashtra.
  • Top 5 Trader & Wholesaler of Set screws, Machine screws, Washers, Heavy Hex head bolt, Double Ended Studs in India, For Low and High Temperature Applications.
  • Offer Inexpensive Rates to the local Distributor & Reseller Mexico, China, Brazil, Peru, Nigeria, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, UK, Canada, and Russia.
  • Stockist of Rivets, Hex Nuts, Lock Nuts, Bolts and Nuts Used in Various Industries and Applications For Fastening and Securing Purposes in Maharashtra.