Quick Enquiry

Duplex Steel UNS S32205 Bolts

Duplex Steel UNS S32205 Bolts

Duplex steel UNS S32205 bolts are one of the most highly demanded products in industries today. These bolts are known for their effective and efficient nature. Duplex Steel UNS S32205 is considered the most sturdy and robust grade. These bolts are generally used for extreme conditions and high temperatures. 

Duplex steel UNS S32205 grade is considered one of the most sturdy grades. The most frequently used Duplex(ferritic/austenitic) stainless steel grade is duplex UNS S32205 Hex Head Bolts. Although duplex UNS S32205 has high solid temperature oxidation resistance, like other duplex stainless steel grades, it is susceptible to embrittlement when exposed to temperatures exceeding 300 degrees celsius for even short periods. Because of its ductile to brittle transition,  duplex bolts are not typically appropriate for usage at temperatures over 300 degrees celsius due to precipitation of brittle micro components nor below -50 degrees celsius.

If duplex UNS S32205 bolts become brittle, they can only be repaired with a complete annealing process which is never really utilized over 300 degrees celsius. Solution treatment (annealing) - heat these duplex UNS S32205 bolts to 1020 degrees celsius - 1100 degrees celsius and cool quickly, which cannot be hardened further by thermal treatment. The strength of duplex UNS S32205 bolts is roughly double that of Type 304 austenitic stainless steel. Because of its outstanding corrosion resistance and high strength, duplex UNS S32205 bolts are used in various applications. The duplex UNS S32205 bolts also provide corrosion protection from organic acids such as acetic acids and formic acids. They also offer protection from inorganic acids that contain chloride. Due to the low carbon content in duplex UNS S32205 bolts, they are highly resistant to carbide-related intergranular corrosion.  Duplex UNS S32205 bolts are also used in creating non-permanent joints, which can be dismantled on-demand with ease without causing any damage to the joining components. They also provide resistance towards stress corrosion cracking, especially in work chloride environments.

How It Work?

Laboratory Tested
Quality Assurance
On Time Delivery
Shipping Globally
Best Services

Specification :-

Specifications ASTM F593, F594, F1554 / ASME SF593, F594, F1554
Standard DIN : DIN 934, DIN 931, DIN 970, DIN 933
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 length
ANSI B 18.2.4 2M
as per defined in ASME B18.2.2
Size M3 - M56 | 3/6" to 2" | Custom Sizes
Length 3 mm to 200 mm | Custom Sizes
Dimensions DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3
Form Hex, Threading, Square, Round as per Gauge Etc.
Threads Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or
Threads available UNF, BSW, BSF, METRIC, UNC, or as required
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
Test Certificate As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified
Raw materials Source JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc.
Packing IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request
Surface Coating Cadmium Coating
Hot Dipped Galvanizing Coating
Ptfe Coated
Phosphate Coating
Teflon Coating
Xylon Coating
Zinc Coating

Equivalent Grades

DUPLEX 2205 S32205 1.4462 - - - - -

Chemical Composition

Grade C Mn Si P S Cr Mo Ni N Fe
S32205 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21.0 – 23.0 2.50 - 3.50 4.50 – 6.50 0.8 – 0.20 63.54 min

Mechanical Properties

Density Melting Point Yield Strength (0.2%Offset) Tensile Strength Elongation
7.8 g/cm3 1350 °C (2460 °F) Psi – 80000 , MPa – 550 Psi – 116000 , MPa – 800 15 %

Applications and Uses

  • Chemical Industries
  • Oil & Gas Industrires
  • Power Plant Industries
  • Shipbuilding Industries
  • Fertilizer Industrires
  • Petrochemical Industrires
  • Sugar Industrires
  • Cement Industrires