Duplex 2205 Bolts

Duplex 2205 Bolts

Rimco Overseas is one of the outstanding makers of ASTM A479 Duplex Steel UNS S31803 & UNS S32205 Fasteners, which has various amazing ascribes to give like Precisely built, Durable nature, Easy establishment, Dimensional exactness, High quality, Light weight, Hard-wearing, Corrosion evidence, Accurate measurement, Dimensionally steady, Used for developing torque limit, Highly enduring, Superior completion, Rust free, Robustness, Less prerequisite of greases, Finest in quality, Rigid development, Superiors plans, Easy to fit, Sturdy body, and more.ASME SA 479 UNS S32205 Fasteners is a consumption safe and high-quality super-amalgam which is being utilized from cryogenic temp up to 1300 Deg F. The austenitic development ofASME SA 479 UNS S31803 Fasteners also offers these evaluations a remarkable sturdiness, even down to cryogenic temp.


We give the equivalent in different kinds, for example, Duplex Steel ASTM A479 UNS S31803 & UNS S32205 Nuts, Duplex Steel ASTM A479 UNS S31803 & UNS S32205 Bolts, Duplex Steel ASTM A479 UNS S31803 & UNS S32205 Washers, and Duplex Steel ASTM A479 UNS S31803 & UNS S32205 Stud Bolts. Our clients can get from us a broad scope of best quality ASTM A479 Duplex Steel UNS S32205 Fasteners. As for a quality concentrated firm, we are engaged with giving a best quality accumulation of ASTM A479 Duplex Steel UNS S31803 Fasteners. Purchase Duplex Stainless Steel Fasteners at sensible rates from us. We likewise offer the equivalent in various and redid sizes to our clients.

The high quality that makes Duplex 2205 Bolts valuable in numerous applications lamentably diminishes its machinability. Cutting rates are around 20% slower than for review 304. The quality of Duplex 2205 Bolts likewise makes twisting and shaping increasingly troublesome; requiring bigger limit hardware than for austenitic hardened steels. Atlanta Rod has the limit and gear to deal with the majority of your Duplex 2205 Bolts projects.

Duplex 2205 Bolts is the most generally utilized duplex (ferritic/austenitic) hardened steel review. The Duplex 2205 Bolts composite is a nitrogen-upgraded duplex hardened steel combination. The nitrogen serves to fundamentally enhance the erosion obstruction of the combination; particularly in the welded condition.

The ordinary high Cr, Mo and Ni substance of AL 2205 combination give it a high PREN (Pitting Resistance Equivalent) of 35.8, further upgrading its consumption opposition. The PREN of AL 2205 combination surpasses those of sorts 316L and 317L treated steels. At the point when warm treated appropriately, the structure of AL 2205 combination creates a microstructure that comprises of an almost equivalent blend of austenite and ferrite phases.

The microstructure and sythesis of the Duplex 2205 Bolts composite gives erosion protection from numerous situations that is better than Types 316 or 317, and a base yield quality that is more than twofold that of traditional austenitic tempered steels. The microstructure and stage parity of Duplex 2205 Bolts composite have been intended to encourage the creation of pipe and cylinder items. All AL 2205 combinations are metallographically analyzed to guarantee that the as-dispatched item is basically free from the nearness of adverse accelerate stages, for example, sigma.


Duplex 2205 Bolts Specifications

Material Duplex 2205 Bolts
Standard DIN, ASTM, BS and all International Standards
Length 3 mm to 200 mm
Size M3 – M56 | 3/6″ to 2″ | Custom Sizes
Type Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts.


Types of Duplex 2205 Bolts

Duplex & Super Duplex 2205 Hex Head Bolt Duplex 2205 Hex Head Bolts
Super Duplex 2205 Hex Head Bolt
Duplex & Super Duplex 2205 Square Bolt Duplex 2205 Square Bolts
Super Duplex 2205 Square Bolt
Duplex & Super Duplex 2205 Bolt Duplex 2205 U Bolt
Super Duplex 2205 U Bolts
Duplex & Super Duplex 2205 Eye Bolt Duplex 2205 Eye Bolts
Super Duplex 2205 Eye Bolt
Duplex & Super Duplex 2205 T Bolt Duplex 2205 T Bolts
Super Duplex 2205 T Bolt
Duplex & Super Duplex 2205 Hex Bolt Super Duplex 2205 Hex Bolt
Duplex 2205 Hex Bolts
Duplex & Super Duplex 2205 Lag Bolt Super Duplex 2205 Lag Bolt
Duplex 2205 Lag Bolts
Duplex & Super Duplex 2205 Counter sunk Bolt Duplex 2205 Counter sunk Bolts
Super Duplex 2205 Counter sunk Bolt


Chemical composition of Duplex 2205 Bolts

% Fe Cr Ni Mo C Mn Si P S N
min balance 22.0 4.5 3.0           0.14
max 23.0 6.5 3.5 0.030 2.00 1.00 0.030 0.020 0.20


Physical PROPERTIES of Duplex 2205 Bolts

Physical property Value
Density:  0.278 lb/in3   
Melting Range: 2525-2630°F

Specific Heat Capacity at 212°F

0.119 Btu/lb/°F

Thermal Conductivity at 212°F

8.4 Btu/hr-ft-°F

Poisson’s Ratio


Elastic Modulus at 72°F

29 x 10 psi


ASTM Specification of Duplex 2205 Bolts

Pipe Smls

Pipe Welded

Tube Smls

Tube Welded



Flanges, Fittings & Valves










Mechanical property Value


0.2% Yield Strength, ksi


65 min


Tensile Strength, ksi


90 min


Elongation, %


25 min

Hardness [HRC]

293 max


Other Grades of Duplex 2205 Bolts

  • Duplex S31803 / S32205 Bolts
  • Super Duplex S32750/ S32760 Bolts


Characteristics of Duplex 2205 Bolts

»  High resistance to chloride stress corrosion cracking
»   Resistance to chloride pitting and crevice corrosion
»   Good general corrosion resistance
»   Good sulfide stress corrosion resistance
»   High Strength
»   Good weldability and workability


Applications of Duplex 2205 Bolts

»   Chemical process vessels, piping and heat exchangers
»   Pulp mill digesters, bleach washers, chip pre-steaming vessels
»   Food processing equipment
»   Oil field piping and heat exchangers
»   Flue gas desulfurization equipment
»   Tubing and heat exchangers




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Duplex 2205 Bolts
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