PROVIDING DUPLEX AND SUPER DUPLEX STEEL PRODUCTS SINCE 1975

We Duplex Steel & Alloys supply and export the superior quality fasteners to clients located across the world. The fasteners can be ordered in different specifications and sizes, such as the surface finish, end finish, size, shape, length, and toughness. The fasteners can also be cut to the customer's specifications. These Fasteners are offered in a variety of types including the bolts, nuts, screws, washers,

The Bolt is an item that binds or holds two or more components together, Bolts are used to attach components paired with nuts, and different applications have varying requirements, which also impact the type of material used to make the Bolt. S31803 Studs, for instance, are classified as a duplex grade and have a high degree of mechanical strength. As a result, Duplex steel UNS S31803 Fasteners are more corrosion resistant than austenitic stainless steels.

Duplex Steel S31803 Bolts, Duplex S31803 Fasteners, Duplex S31803 Nut Bolt, UNS S31803 Fasteners, Duplex Stainless Steel UNS S31803 Fasteners Suppliers in Mumbai, India.

Duplex Steel S31803 Washers, Duplex Steel S31803 Nuts, Duplex Stainless Steel S31803 Hex Bolt, Duplex S31803 Stud Price, Duplex S31803 Screw, Duplex Steel S31803 Fasteners Manufacturers in India.

Duplex Steel S31803 Fasteners

Among the properties of these fasteners are corrosion resistance and pitting corrosion resistance, mainly due to the carbon content present in the alloying element. These fasteners can also be used in elevated temperature applications because of their ductility, durability, and stability in elevated temperatures, as well as their great toughness and strength.

Because the Duplex Steel S31803 Fasteners provide a high level of resistance to acid, alkalis, and neutral solutions, they would be a suitable addition to these industries

Our Duplex Steel S31803 Fasteners

Filters for flue gases
• Chemical storage tanks
• Exchangers of heat
• Components of Acetic Acid Distillation
• Textile Equipment
• The Petroleum and Gas industries
• Pipeline Systems for Medical Gas
• Pharmaceutical manufacturing industry
• Piping for Fluids.
• Architecture of the present.
• Projects involving Water Waste.
• Industry of Petrochemicals
• Industry of Refining
• The Pulp and Paper Industry

Additionally, duplex alloys have good weldability, therefore using a DSS S31803 Fasteners along with welding in areas requiring a permanent bond is important. As compared to conventional austenitic alloys, the corrosion rate for Duplex Steel S31803 Fasteners is lower at elevated temperatures.


Duplex Steel S31803 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

Types of Duplex Steel S31803 Fasteners

Bolts

Duplex Steel S31803 Bolts

Nuts

Duplex Steel S31803 Nuts

Screw

Duplex Stainless Steel S31803 Screw

Washers

Duplex Steel S31803 Washer

Stud Bolt

Duplex Steel S31803 Stud Bolts

Anchor Fasteners

UNS S31803 Anchor Bolt

Threaded Studs

Duplex Steel S31803 Threaded Rod

Hex Bolt

Duplex S31803 Hexagonal Bolt

Hex Nut

Duplex Stainless Steel S31803 Hex Nut

S31803 Duplex Steel Fastener Equivalent Material

STANDARD WERKSTOFF NR. UNS
Duplex Steel 1.4462 S31803

Duplex S31803 Fasteners Chemical Composition

Grade C Mn Si P S Cr Mo Ni N Fe
S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min

Mechanical Properties of Duplex Steel S31803 Fasteners

Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 7.805 0.285 1420 – 1465 2588 – 2669

ASTM A479 Duplex Steel S31803 Fasteners, S31803 Duplex Stainless Steel Fasteners, DSS S31803 Anchor Fasteners, Duplex Steel S31803 Hex Bolt Price List, Duplex S31803 Nut Bolt Manufacturer, Duplex Steel S31803 Fasteners Suppliers in Mumbai.

If you are looking for best prices for Duplex Steel S31803 Fasteners, Duplex S31803 Stud Bolt, S31803 Duplex Fasteners email us on info@duplexsteelalloys.com or call us on +91 9664408767

Duplex Steel S31803 Fasteners Price List

Product Price
Duplex S31803 Nut Bolt Price Per Kg US $1.99-200 / Kg
ASTM A479 Hexagon Head Screw Duplex Steel S31803 US $1290-4900 / Ton
Cost Per Kg of Duplex Steel S31803 Heavy Hex Nuts US $99-1100 / Kg
Duplex Stainless Steel S31803 Washer Price S $1.00-900.0 / Kg
S31803 Duplex Steel Self Locking Nuts Price Per Kg US $190-1990 / Ton
Duplex S31803 Heavy Hex Bolt price US $1000-4500 / Ton
Duplex S31803 Anchor Fasteners Price List US $1500-2600 / Ton
S31803 Duplex Steel Bolt Price List US $2200-4000 / Ton
Duplex Stainless Steel S31803 Socket Head Screw Price US $1.2-3.7 / Kilogram
UNS S31803 Allen Cap Screw Price US $1,100.00-2,100.00 / Ton

Duplex Steel S31803 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

Duplex Steel S31803 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 S31803 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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Tests of ASTM A479 Duplex Steel S31803 Fastener

Before being prepared for shipment to the customer, ASTM A479 Duplex Steel S31803 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 S31803 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

Duplex Steel S31803 Fasteners - Comparing International Standards

USA France Germany Germany Italy Japan Russia Spain Sweden UK European Union
AISI AFNOR DIN 17006 W.N. 17007 UNI JIS GOST UNE SIS BSI EURONORM
UNS31803 X 2 CrNiMoN 22 5 1.4462
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Duplex Steel S31803 Fasteners Supply in Below Countries

Products We Supplied Description Country
Duplex Steel S31803 Fasteners UNS S31803 U Bolts Supply Malaysia, Venezuela, Serbia, Germany
ASTM A479 DSS Duplex Fasteners Duplex Steel 1.4462 Nut Bolt Weight Chart In Kg Azerbaijan, Oman, Gambia, South Africa, Belarus
Duplex Steel S31803 Bolts and Nuts Price List S31803 Duplex Stainless Steel Eye Bolts Romania, Puerto Rico, Slovakia, Yemen, Mongolia
S31803 Duplex Fasteners Manufacturers 1.4462 Double Ended Studs In India Switzerland, Singapore, Australia, Hong Kong
ASME SA479 S31803 Duplex Steel Fasteners In India Duplex Stainless Steel S31803 Acorn Nuts Manufacturers In India Belgium, Taiwan, New Zealand, Portugal
Duplex Steel S31803 Fastener S31803 Duplex Nyloc Nuts Manufacturers In India Nigeria, Ecuador, Chile, Czech Republic, Jordan
Duplex S31803 Bolt Torque Chart UNS S31803 Carriage Bolts Near Me Kuwait, Bhutan, Nepal, Bulgaria
Duplex Steel S31803 Spring Washer S31803 Duplex Steel Flat Washers Estonia, Denmark, Hungary, Vietnam

Common Application for S31803 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