PROVIDING DUPLEX AND SUPER DUPLEX STEEL PRODUCTS SINCE 1975

We are a leading duplex steel fasteners manufacturer, distributor, and exporter in India. We are known for our quality products and larger stocking ability.

DIN W.NR. 1.4462 is an austenitic and ferritic dual-phase. The austenitic formation of fasteners offers these grades excellent durability, even at subfreezing temperatures. Alloy 2205 contains chromium, nickel, manganese, silicon, and sulfur. Grade 2205 is generally suitable for temperatures -50*C to 280*C.

Alloy UNS S32205 has high corrosion properties but lower mechanical strength. It also shows better toughness and ductility compared to ferritic stainless steel. They do offer better corrosion resistance than stainless steel 300. The minimum tensile strength is 700MPa and 600MPa minimum yield strength.

Duplex Steel Fasteners, DS Bolts, Duplex Steel Fasteners, DS Fasteners, DS Nut Bolt, Duplex Steel Fastener Suppliers in Mumbai, India.

DS Screw, Duplex Steel Nuts, DS Fastener, DS Bolts, DS Hex Bolt, DS Stud Price, Duplex Steel Washers, DS Fasteners Manufacturers in India.

Duplex Steel Fasteners

They can obtain higher strength than other alloys, which allows goods made from duplex fasteners to be used in several applications. Duplex steel UNS S32205 is used in many industries such as railway, food and beverages, ore and mineral mining, chemical processing, power generation, and oil industries. The duplex 2205 fasteners have resistance to creep at higher temperatures, and it does not compromise on their strength, in applications where the temperature reaches 280* Celcius

We are a professional supplier of UNS s32205 fasteners in form of bolts, screws, studs, studs bolts, nuts, and washers. We can supply national and international standard Duplex fasteners manufactured by both hot-rolled and cold-rolled or directly machined best quality duplex stainless steel 2205 fasteners.

All those extraordinary styles of duplex steel fasteners are made by way of means of the usage of the good raw fabric under the supervision of excellently educated professionals. We at Duplex steel and engg co are honestly thankful for our customers who have respected us as a qualified company that serves great products and we work with maximum determination to maintain this image in the market.


DS Bolts and Nuts Specification

Standard ASTM A479 / ASME SA479
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 DSS S31803 Stud Bolt length
  • ANSI B 18.2.4 2M
  • as per defined in ASME B18.2.2 Duplex S31803 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 Steel Fastener Types

Bolts

Duplex Steel Bolts

Nuts

Duplex Steel Nuts

Screw

Duplex Steel Screw

Washers

DS Washer

Stud Bolt

Duplex Steel Stud Bolts

Anchor Fasteners

DS Anchor Bolt

Threaded Studs

Duplex Steel Threaded Rod

Hex Bolt

DS Hexagonal Bolt

Hex Nut

DS Hex Nut

DS Anchor Fasteners, DS Nut Bolt Manufacturer, A194 Bolt, ASTM F593 Duplex Steel Fastener, Duplex Steel Fastener, DS Hex Bolt Price List, Duplex Steel Fasteners, Duplex Steel Fasteners Suppliers in Mumbai.

If you are looking for best prices for Duplex Steel Fasteners, DS Stud Bolt, Grade Duplex Steel Fasteners email us on info@duplexsteelalloys.com or call us on +91 9664408767

Duplex Steel Fasteners Price List

Product Price
Duplex Nut Bolt Price Per Kg US $1.99-200 / Kg
ASTM A479 Hexagon Head Screw Duplex Steel US $1290-4900 / Ton
Cost Per Kg of Duplex Steel Heavy Hex Nuts US $99-1100 / Kg
Duplex Stainless Steel Washer Price S $1.00-900.0 / Kg
Duplex Steel Self Locking Nuts Price Per Kg US $190-1990 / Ton
Duplex Heavy Hex Bolt price US $1000-4500 / Ton
Duplex Anchor Fasteners Price List US $1500-2600 / Ton
Duplex Steel Bolt Price List US $2200-4000 / Ton
Duplex Stainless Steel Socket Head Screw Price US $1.2-3.7 / Kilogram
DS Allen Cap Screw Price US $1,100.00-2,100.00 / Ton

DS Bolt Thread Sizes

Size Nominal (Major)
Diameter [in]
Coarse Thread (UNC) Fine Thread (UNF)
Threads
Per Inch
Tensile Stress
Area [in2]
Minor
Area [in2]
Threads
Per Inch
Tensile Stress
Area [in2]
Minor
Area [in2]
#0 0.0600 --- --- --- 80 0.00180 0.00151
#2 0.0860 56 0.00370 0.00310 64 0.00394 0.00339
#4 0.1120 40 0.00604 0.00496 48 0.00661 0.00566
#5 0.1250 40 0.00796 0.00672 44 0.00830 0.00716
#6 0.1380 32 0.00909 0.00745 40 0.01015 0.00874
#8 0.1640 32 0.0140 0.01196 36 0.01474 0.01285
#10 0.1900 24 0.0175 0.01450 32 0.0200 0.0175
1/4" 0.2500 20 0.0318 0.0269 28 0.0364 0.0326
5/16" 0.3125 18 0.0524 0.0454 24 0.0580 0.0524
3/8" 0.3750 16 0.0775 0.0678 24 0.0878 0.0809
7/16" 0.4375 14 0.1063 0.0933 20 0.1187 0.1090
1/2" 0.5000 13 0.1419 0.1257 20 0.1599 0.1486
9/16" 0.5625 12 0.182 0.162 18 0.203 0.189
5/8" 0.6250 11 0.226 0.202 18 0.256 0.240
3/4" 0.7500 10 0.334 0.302 16 0.373 0.351
7/8" 0.8750 9 0.462 0.419 14 0.509 0.480
1" 1.0000 8 0.606 0.551 12 0.663 0.625
1-1/8" 1.1250 7 0.763 0.693 12 0.856 0.812
1-1/4" 1.2500 7 0.969 0.890 12 1.073 1.024
1-3/8" 1.3750 6 1.155 1.054 12 1.315 1.260
1-1/2" 1.5000 6 1.405 1.294 12 1.581 1.521
1-3/4" 1.7500 5 1.90 1.74 --- --- ---
2" 2.0000 4.5 2.50 2.30 --- --- ---

The following table of clearance holes was adapted from ASME B18.2.8. The minimum hole diameters are given.

Bolt Size Bolt Dia. [in] Normal Fit [in] Close Fit [in] Loose Fit [in]
#0 0.0600 0.076 0.067 0.094
#2 0.0860 0.102 0.094 0.116
#4 0.1120 0.128 0.120 0.144
#5 0.1250 0.156 0.141 0.172
#6 0.1380 0.170 0.154 0.185
#8 0.1640 0.196 0.180 0.213
#10 0.1900 0.221 0.206 0.238
1/4" 0.2500 0.281 0.266 0.297
5/16" 0.3125 0.344 0.328 0.359
3/8" 0.3750 0.406 0.391 0.422
7/16" 0.4375 0.469 0.453 0.484
1/2" 0.5000 0.562 0.531 0.609
5/8" 0.6250 0.688 0.656 0.734
3/4" 0.7500 0.812 0.781 0.906
7/8" 0.8750 0.938 0.906 1.031
1" 1.0000 1.094 1.031 1.156
1-1/8" 1.1250 1.219 1.156 1.312
1-1/4" 1.2500 1.344 1.281 1.438
1-3/8" 1.3750 1.500 1.438 1.609
1-1/2" 1.5000 1.625 1.562 1.734

DS Hex Nut Dimensions

The following table of hex nut dimensions was adapted from ASME B18.2.2, Table 1-1, "Dimensions of Square and Hex Machine Screw Nuts." This table is used for smaller size hardware.

Size Nominal (Major)
Diameter [in]
Width Across Flats Thickness
Nominal [in] Minimum [in] Minimum [in] Maximum [in]
#0 0.060 5/32"(0.156) 0.150 0.043 0.050
#2 0.086 3/16"(0.188) 0.180 0.057 0.066
#4 0.112 1/4"(0.250) 0.241 0.087 0.098
#6 0.138 5/16"(0.312) 0.302 0.102 0.114
#8 0.164 11/32"(0.344) 0.332 0.117 0.130
#10 0.190 3/8"(0.375) 0.362 0.117 0.130
1/4" 0.250 7/16"(0.438) 0.423 0.178 0.193
5/16" 0.312 9/16"(0.562) 0.545 0.208 0.225
3/8" 0.375 5/8"(0.625) 0.607 0.239 0.257

The following table of hex nut dimensions was adapted from ASME B18.2.2, Table 4, "Dimensions of Hex Nuts and Hex Jam Nuts."

Size Nominal (Major)
Diameter [in]
Width Across Flats Thickness
Minimum [in] Maximum [in] Minimum [in] Maximum [in]
1/4" 0.2500 0.428 0.438 0.212 0.226
5/16" 0.3125 0.489 0.500 0.258 0.273
3/8" 0.3750 0.551 0.563 0.320 0.337
7/16" 0.4375 0.675 0.688 0.365 0.385
1/2" 0.5000 0.736 0.750 0.427 0.448
9/16" 0.5625 0.861 0.875 0.473 0.496
5/8" 0.6250 0.922 0.938 0.535 0.559
3/4" 0.7500 1.088 1.125 0.617 0.665
7/8" 0.8750 1.269 1.312 0.724 0.776
1" 1.0000 1.450 1.500 0.831 0.887
1-1/8" 1.1250 1.631 1.688 0.939 0.999
1-1/4" 1.2500 1.812 1.875 1.030 1.094
1-3/8" 1.3750 1.994 2.062 1.138 1.206
1-1/2" 1.5000 2.175 2.250 1.245 1.317
1-5/8" 1.6250 2.350 2.430 1.364 1.416
1-3/4" 1.7500 2.538 2.625 1.460 1.540
1-7/8" 1.8750 2.722 2.813 1.567 1.651
2" 2.0000 2.900 3.000 1.675 1.763

Duplex Steel Flat Washer Dimensions

The following table of flat washer dimensions was adapted from ASME B18.21.1, Table 11 for Type A Plain Washers. Type A washers come in 2 series: Narrow and Wide.

Size Basic Dia. [in] Series Inner Dia,
Basic [in]
Outer Dia,
Basic [in]
Thickness,
Basic [in]
#0 0.0600 --- 0.078 0.188 0.020
#2 0.0860 --- 0.094 0.250 0.020
#4 0.1120 --- 0.125 0.312 0.032
#6 0.1380 --- 0.156 0.375 0.049
#8 0.1640 --- 0.188 0.438 0.049
#10 0.1900 --- 0.219 0.500 0.049
1/4" 0.2500 Narrow 0.281 0.625 0.065
1/4" 0.2500 Wide 0.312 0.734 0.065
5/16" 0.3125 Narrow 0.344 0.688 0.065
5/16" 0.3125 Wide 0.375 0.875 0.083
3/8" 0.3750 Narrow 0.406 0.812 0.065
3/8" 0.3750 Wide 0.438 1.000 0.083
7/16" 0.4375 Narrow 0.469 0.922 0.065
7/16" 0.4375 Wide 0.500 1.250 0.083
1/2" 0.5000 Narrow 0.531 1.062 0.095
1/2" 0.5000 Wide 0.562 1.375 0.109
9/16" 0.5625 Narrow 0.594 1.156 0.095
9/16" 0.5625 Wide 0.625 1.469 0.109
5/8" 0.6250 Narrow 0.656 1.312 0.095
5/8" 0.6250 Wide 0.688 1.750 0.134
3/4" 0.7500 Narrow 0.812 1.469 0.134
3/4" 0.7500 Wide 0.812 2.000 0.148
7/8" 0.8750 Narrow 0.938 1.750 0.134
7/8" 0.8750 Wide 0.938 2.250 0.165
1" 1.0000 Narrow 1.062 2.000 0.134
1" 1.0000 Wide 1.062 2.500 0.165
1-1/8" 1.1250 Narrow 1.250 2.250 0.134
1-1/8" 1.1250 Wide 1.250 2.750 0.165
1-1/4" 1.2500 Narrow 1.375 2.500 0.165
1-1/4" 1.2500 Wide 1.375 3.000 0.165
1-3/8" 1.3750 Narrow 1.500 2.750 0.165
1-3/8" 1.3750 Wide 1.500 3.250 0.180
1-1/2" 1.5000 Narrow 1.625 3.000 0.165
1-1/2" 1.5000 Wide 1.625 3.500 0.180
1-5/8" 1.6250 --- 1.750 3.750 0.180
1-3/4" 1.7500 --- 1.875 4.000 0.180
1-7/8" 1.8750 --- 2.000 4.250 0.180
2" 2.0000 --- 2.125 4.500 0.180

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Widest Range of Duplex Steel Fastener in Mumbai, India.

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  • Duplex Steel Socket Cap Screw Stock
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  • Duplex Steel Square Nut
  • Duplex Steel Coupling Nuts
  • DS Dome Nut
  • DS Split Washers Sizes
  • Square Bolts Stockists
  • Duplex Steel Hex Nut Dimensions
  • Duplex Steel Ogee Washers
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TESTS OF ASTM A479 DUPLEX STEEL FASTENER

Before being prepared for shipment to the customer, ASTM F1554 253MA Duplex Steel Fasteners Testing should be constructed in accordance with applicable standards and thoroughly tested for potential flaws.

Shear Test

Shear Test

Fatigue Test

Fatigue Test

Biaxial Test

Biaxial Test

Creep Test

Creep Test

Drop Weight Test

Drop Weight Test

Flexure Test

Flexure Test

Finishes Of Duplex Steel Fastener

Powder coating Zinc and yellow plated
Zinc and de-embrittled Stayblack finish
Sherardised Nickel
Green chromate Geomet
Galvanised Electro brass plated
Chrome Chemical black
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253MA Stainless Steel Fasteners Supply in Below Countries

Products We Supplied Description Country
Duplex Steel Fasteners DS U Bolts Supply Malaysia, Venezuela, Serbia, Germany
ASTM A479 DSS Duplex Fasteners Duplex Steel Nut Bolt Weight Chart In Kg Azerbaijan, Oman, Gambia, South Africa, Belarus
Duplex Steel Bolts and Nuts Price List Duplex Stainless Steel Eye Bolts Romania, Puerto Rico, Slovakia, Yemen, Mongolia
Duplex Fasteners Manufacturers Double Ended Studs In India Switzerland, Singapore, Australia, Hong Kong
ASME SA479 Duplex Steel Fasteners In India Duplex Stainless Steel Acorn Nuts Manufacturers In India Belgium, Taiwan, New Zealand, Portugal
Duplex Steel Fastener Duplex Nyloc Nuts Manufacturers In India Nigeria, Ecuador, Chile, Czech Republic, Jordan
Duplex Bolt Torque Chart DS Carriage Bolts Near Me Kuwait, Bhutan, Nepal, Bulgaria
Duplex Steel Spring Washer Duplex Steel Flat Washers Estonia, Denmark, Hungary, Vietnam

Main Applications Of Duplex Steel Fasteners

Heavy Equipment

Heavy Equipment

Automotive

Automotive

Chemical Processing

Chemical

Power Generation

Power Generation

Shipbuilding

Shipbuilding

Construction

Construction

Aerospace

Aerospace

Oil & Gas

Oil & Gas