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Manufacturer, Supplier & Exporter of UNS S32550 Round Bar

UNS S32550 Round Bar, also known as Super Duplex 255 (Alloy 255), is a premium-grade duplex stainless steel round bar widely appreciated for its excellent combination of high strength, superior corrosion resistance, and excellent mechanical performance. Riddhi Siddhi Impex is a leading manufacturer and supplier of UNS S32550 Round Bar in India, supplying to various industries that require a tough, durable, and corrosion-resistant material capable of performing in the most demanding conditions...

As a trusted supplier, Riddhi Siddhi Impex provides UNS S32550 Round Bars to clients in major Indian domestic cities including Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, Vadodara, Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, Varanasi, Amritsar, Chandigarh, Mysuru, Coimbatore, Madurai, Kochi, Thiruvananthapuram, Mangalore, Nashik, Kolhapur, Akola, Dahej, Ankleshwar, Vapi, Navsari, Valsad, Rajpipla, and many more industrial hubs. The product is manufactured using advanced technology and strict quality controls to ensure the highest standards of performance..

UNS S32550 Round Bar contains a balanced mix of chromium, molybdenum, and nitrogen, offering exceptional resistance to pitting, crevice corrosion, chloride stress corrosion cracking, and abrasion. This makes it an ideal choice for industries such as chemical processing, marine engineering, desalination systems, offshore platforms, paper and pulp mills, and oil & gas refineries where exposure to harsh environments is constant...


UNS S32550 Round Bar

One of the key features of UNS S32550 Round Bar is its dual-phase microstructure, combining the benefits of both ferritic and austenitic stainless steels. This provides superior strength compared to standard stainless steels while maintaining excellent weldability and formability. Its high yield strength and toughness make it suitable for applications where high mechanical loads and corrosive environments coexist..

Riddhi Siddhi Impex ensures that each UNS S32550 Round Bar is produced according to relevant global standards and specifications. These round bars are available in multiple sizes, thicknesses, lengths, and finishes, providing flexibility for use across a wide range of applications. Custom cutting, machining, and finishing options are also available to meet specific project requirements.

UNS S32550 Round Bar – Specification

PropertySpecification
MaterialUNS S32550 (Super Duplex Alloy 255)
StandardASTM A276, ASTM A479, ASME SA276, SA479
Diameter Range10mm – 300mm
Length1000mm – 6000mm (Custom Cut Available)
FinishBright, Black, Polished, Hot Rolled, Cold Drawn
FormsRound, Hex, Square, Rectangular, Forged Bars


Chemical Composition

ElementPercentage (%)
Chromium (Cr)24.0 – 27.0
Nickel (Ni)4.5 – 6.5
Molybdenum (Mo)2.0 – 3.0
Copper (Cu)1.5 – 2.5
Nitrogen (N)0.10 – 0.25
Carbon (C)≤ 0.04
Manganese (Mn)≤ 1.50
Silicon (Si)≤ 1.00
Phosphorus (P)≤ 0.04
Sulfur (S)≤ 0.03


Mechanical Properties

PropertyValue
Tensile Strength≥ 650 MPa
Yield Strength≥ 450 MPa
Elongation≥ 20%
Hardness≤ 290 HB
Impact StrengthHigh Toughness


Dimension Chart (Round Bars)

Diameter (mm)Weight (kg/m)
100.62
120.89
161.58
202.46
253.85
305.54
409.86
5015.40
6022.16
8039.46
10061.50


Equivalent Grades

StandardEquivalent Grade
UNSS32550
EN1.4507
WNR1.4507
Common NameSuper Duplex Alloy 255


Equivalent Standards

StandardDescription
ASTM A276Standard for Stainless Steel Bars & Shapes
ASTM A479Bars for High-Temperature & Pressure Applications
ASME SA276Forged/Rolled Stainless Steel Bars
ASME SA479High-Temperature Service Bars


Other Types of UNS S32550 Round Bars

TypeDescription
UNS S32550 Hex BarUsed in high-strength industrial applications
UNS S32550 Square BarIdeal for construction & structural uses
UNS S32550 Bright BarFor precision machining applications
UNS S32550 Forged BarUsed for heavy engineering components
UNS S32550 Threaded BarUsed in fasteners & anchoring systems

Whether you require UNS S32550 Round Bar for heavy engineering, marine applications, petrochemical plants, or infrastructure development, Riddhi Siddhi Impex ensures delivering products with exceptional consistency, reliability, and precision. With strong corrosion resistance and a high strength-to-weight ratio, UNS S32550 remains one of the best-performing duplex steel materials available today..

Frequently Asked Questions (FAQs)

Q1: What are the main advantages of UNS S32550 Round Bars?
A1: They provide high strength, corrosion resistance, and excellent performance in marine and chemical environments.
Q2: Where are UNS S32550 Round Bars commonly used?
A2: Oil & gas, desalination, marine engineering, chemical plants, pumps, and pressure vessels.
Q3: Does Riddhi Siddhi Impex supply custom-cut lengths?
A3: Yes, custom lengths, machining, and surface finishes are available.
Q4: Is UNS S32550 suitable for high-temperature service?
A4: Yes, the alloy performs well under high temperatures and aggressive conditions.

Cities we have supplied our products to

Mumbai, UNS S32550 Round Bar Suplier in Delhi, UNS S32550 Round Bar Suplier in Bengaluru(Bangalore), UNS S32550 Round Bar Suplier in Hyderabad, UNS S32550 Round Bar Suplier in Chennai, UNS S32550 Round Bar Suplier in Kolkata, UNS S32550 Round Bar Suplier in Pune, UNS S32550 Round Bar Suplier in Ahmedabad, UNS S32550 Round Bar Suplier in Surat, UNS S32550 Round Bar Suplier in Vadodara, UNS S32550 Round Bar Suplier in Rajkot, UNS S32550 Round Bar Suplier in Nagpur, UNS S32550 Round Bar Suplier in Indore, UNS S32550 Round Bar Suplier in Bhopal, UNS S32550 Round Bar Suplier in Jaipur, UNS S32550 Round Bar Suplier in Kanpur, UNS S32550 Round Bar Suplier in Lucknow, UNS S32550 Round Bar Suplier in Agra, UNS S32550 Round Bar Suplier in Varanasi, UNS S32550 Round Bar Suplier in Amritsar, UNS S32550 Round Bar Suplier in Chandigarh, UNS S32550 Round Bar Suplier in Mysuru (Mysore), UNS S32550 Round Bar Suplier in Udaipur, UNS S32550 Round Bar Suplier in Jodhpur, UNS S32550 Round Bar Suplier in Visakhapatnam, UNS S32550 Round Bar Suplier in Coimbatore, UNS S32550 Round Bar Suplier in Madurai, UNS S32550 Round Bar Suplier in Kochi, UNS S32550 Round Bar Suplier in Thiruvananthapuram, UNS S32550 Round Bar Suplier in Mangalore, UNS S32550 Round Bar Suplier in Nagpur, UNS S32550 Round Bar Suplier in Nashik, UNS S32550 Round Bar Suplier in Kolhapur, UNS S32550 Round Bar Suplier in Chandrapur, UNS S32550 Round Bar Suplier in Akola, UNS S32550 Round Bar Suplier in Vilayat, UNS S32550 Round Bar Suplier in Somnath, UNS S32550 Round Bar Suplier in Dahej, UNS S32550 Round Bar Suplier in Vadodara, UNS S32550 Round Bar Suplier in Narmada, UNS S32550 Round Bar Suplier in Surat, UNS S32550 Round Bar Suplier in Ankleshwar, UNS S32550 Round Bar Suplier in Navsari, UNS S32550 Round Bar Suplier in Valsad, UNS S32550 Round Bar Suplier in Rajpipla, UNS S32550 Round Bar Suplier in Veraval, UNS S32550 Round Bar Suplier inKovvur, UNS S32550 Round Bar Suplier in Andra Pradesh, UNS S32550 Round Bar Suplier inKarwar, UNS S32550 Round Bar Suplier in Karnataka, UNS S32550 Round Bar Suplier inKosamba, UNS S32550 Round Bar Suplier in Gujarat, UNS S32550 Round Bar Suplier in Vishakapatnam, UNS S32550 Round Bar Suplier in Shahad, UNS S32550 Round Bar Suplier in Pondicherry, UNS S32550 Round Bar Suplier in Kakkinada, UNS S32550 Round Bar Suplier in Andra Pradesh, UNS S32550 Round Bar Suplier in Nagda, UNS S32550 Round Bar Suplier in Madhya Pradesh, UNS S32550 Round Bar Suplier inHarihar, UNS S32550 Round Bar Suplier in Karnataka, UNS S32550 Round Bar Suplier in Tuticorin, UNS S32550 Round Bar Suplier in Tamilnadu, UNS S32550 Round Bar Suplier in Trivandrum, UNS S32550 Round Bar Suplier in KeralaKurnool, UNS S32550 Round Bar Suplier in Andra Pradesh, UNS S32550 Round Bar Suplier in Rourkela, UNS S32550 Round Bar Suplier in Hindupur, UNS S32550 Round Bar Suplier in Orissa, UNS S32550 Round Bar Suplier in Renukoot, UNS S32550 Round Bar Suplier in Uttar Pradesh, UNS S32550 Round Bar Suplier in Morbi, UNS S32550 Round Bar Suplier in Kerala , UNS S32550 Round Bar Suplier inHimachal, UNS S32550 Round Bar Suplier in Dehradun, UNS S32550 Round Bar Suplier in Visakhapatnam , UNS S32550 Round Bar Suplier inJamnagar, UNS S32550 Round Bar Suplier in Kozhikode, UNS S32550 Round Bar Suplier in Pondicherry, UNS S32550 Round Bar Suplier in Ludhiana, UNS S32550 Round Bar Suplier inLatur, UNS S32550 Round Bar Suplier in Nanded, UNS S32550 Round Bar Suplier in Vijaywada, UNS S32550 Round Bar Suplier in Alwar, UNS S32550 Round Bar Suplier in Bareilly, UNS S32550 Round Bar Suplier in Bikaner, UNS S32550 Round Bar Suplier in Andheri, UNS S32550 Round Bar Suplier in Marol, UNS S32550 Round Bar Suplier in Taloja, UNS S32550 Round Bar Suplier in Turbhe, UNS S32550 Round Bar Suplier in TTC (Thane-Belapur), UNS S32550 Round Bar Suplier in Pimpri-Chinchwad, UNS S32550 Round Bar Suplier in Chakan, UNS S32550 Round Bar Suplier in Talegaon, UNS S32550 Round Bar Suplier in Ranjangaon, UNS S32550 Round Bar Suplier in Jejuri, UNS S32550 Round Bar Suplier in Baramati, UNS S32550 Round Bar Suplier in Satpur, UNS S32550 Round Bar Suplier in Ambad, UNS S32550 Round Bar Suplier in Sinnar, UNS S32550 Round Bar Suplier in Igatpuri, UNS S32550 Round Bar Suplier in Shendra, UNS S32550 Round Bar Suplier in Waluj, UNS S32550 Round Bar Suplier in Chikalthana, UNS S32550 Round Bar Suplier in Paithan, UNS S32550 Round Bar Suplier in Hingna, UNS S32550 Round Bar Suplier in Butibori, UNS S32550 Round Bar Suplier in Kalmeshwar, UNS S32550 Round Bar Suplier in Umred, UNS S32550 Round Bar Suplier in Shiroli, UNS S32550 Round Bar Suplier in Kagal, UNS S32550 Round Bar Suplier in Gokul Shirgaon, UNS S32550 Round Bar Suplier in Akkalkot, UNS S32550 Round Bar Suplier in Chincholi, UNS S32550 Round Bar Suplier in Lote-Parshuram, UNS S32550 Round Bar Suplier in Dombivli, UNS S32550 Round Bar Suplier in Ambernath, UNS S32550 Round Bar Suplier in Mahad, UNS S32550 Round Bar Suplier in Roha, UNS S32550 Round Bar Suplier in Palghar, UNS S32550 Round Bar Suplier in Tarapur (Boisar) and for inder national

Countries we have supplied our products to

South Korea, UNS S32550 Round Bar Exporter in Africa, UNS S32550 Round Bar Exporter in Sri Lanka, UNS S32550 Round Bar Exporter in Syria, UNS S32550 Round Bar Exporter in Taiwan, UNS S32550 Round Bar Exporter in Tanzania, UNS S32550 Round Bar Exporter in Tajikistan, UNS S32550 Round Bar Exporter in Thailand, UNS S32550 Round Bar Exporter in Turkey, UNS S32550 Round Bar Exporter in Turkmenistan, UNS S32550 Round Bar Exporter in Ukraine, UNS S32550 Round Bar Exporter in United Kingdom, UNS S32550 Round Bar Exporter in Arab Emirates (UAE), UNS S32550 Round Bar Exporter in Uzbekistan, UNS S32550 Round Bar Exporter in Vietnam, UNS S32550 Round Bar Exporter in Yemen, UNS S32550 Round Bar Exporter in France, UNS S32550 Round Bar Exporter in Germany, UNS S32550 Round Bar Exporter in Greece, UNS S32550 Round Bar Exporter in Oman, UNS S32550 Round Bar Exporter in Colombia, UNS S32550 Round Bar Exporter in Portugal, UNS S32550 Round Bar Exporter in Japan, UNS S32550 Round Bar Exporter in Lithuania, UNS S32550 Round Bar Exporter in Macau, UNS S32550 Round Bar Exporter in Mongolia, UNS S32550 Round Bar Exporter in Qatar, UNS S32550 Round Bar Exporter in Ireland, UNS S32550 Round Bar Exporter in Malaysia, UNS S32550 Round Bar Exporter in Bangladesh, UNS S32550 Round Bar Exporter in Russia, UNS S32550 Round Bar Exporter in Iran, UNS S32550 Round Bar Exporter in Jordan, UNS S32550 Round Bar Exporter in Singapore, UNS S32550 Round Bar Exporter in Bulgaria, UNS S32550 Round Bar Exporter in Poland, UNS S32550 Round Bar Exporter in Denmark, UNS S32550 Round Bar Exporter in Nigeria, UNS S32550 Round Bar Exporter in Gambia, UNS S32550 Round Bar Exporter in Indonesia, UNS S32550 Round Bar Exporter in Finland, UNS S32550 Round Bar Exporter in Argentina, UNS S32550 Round Bar Exporter in Chile, UNS S32550 Round Bar Exporter in Spain, UNS S32550 Round Bar Exporter in Peru, UNS S32550 Round Bar Exporter in Kuwait, UNS S32550 Round Bar Exporter in India, UNS S32550 Round Bar Exporter in Saudi Arabia, UNS S32550 Round Bar Exporter in Slovakia, UNS S32550 Round Bar Exporter in Slovenia, UNS S32550 Round Bar Exporter in Sweden, UNS S32550 Round Bar Exporter in Switzerland, UNS S32550 Round Bar Exporter in Bahrain, UNS S32550 Round Bar Exporter in the Netherlands, UNS S32550 Round Bar Exporter in United Kingdom, UNS S32550 Round Bar Exporter in Mexico, UNS S32550 Round Bar Exporter in Bulgaria, UNS S32550 Round Bar Exporter in Spain, UNS S32550 Round Bar Exporter in France, UNS S32550 Round Bar Exporter in Germany, UNS S32550 Round Bar Exporter in Colombia, UNS S32550 Round Bar Exporter in Brazil, UNS S32550 Round Bar Exporter in Saudi Arabia, UNS S32550 Round Bar Exporter in Iraq, UNS S32550 Round Bar Exporter in Iran, UNS S32550 Round Bar Exporter in Sudan, UNS S32550 Round Bar Exporter in Libya, UNS S32550 Round Bar Exporter in Tanzania, UNS S32550 Round Bar Exporter in Nigeria, UNS S32550 Round Bar Exporter in New Zealand, UNS S32550 Round Bar Exporter in Paris, UNS S32550 Round Bar Exporter in Switzerland

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28, Ground Floor, 66/68-School Building, 3rd Kumbharwada, Mumbai - 400004
+91-7738916158
exports@riddhisiddhiimpex.net
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