Stainless Steel 321 Flanges Manufacturer, Stainless Steel 321 Flanges, Stainless Steel 321 Flanges in India, Stainless Steel 321 Flanges in Mumbai

Labdhi Metals is a leading manufacturer, stockist, and exporter of premium-quality Stainless Steel 321 Flanges, engineered to provide excellent performance in high-temperature and corrosive environments. Stainless Steel 321 is a titanium-stabilized austenitic stainless steel designed to resist intergranular corrosion after exposure to high heat, making it ideal for applications involving repeated thermal cycles. Labdhi Metals produces a full range of SS 321 flanges in standard and custom dimensions, suitable for critical industrial systems worldwide.

The titanium content in SS 321 prevents chromium carbide precipitation during welding, which protects the material from corrosion in the heat-affected zones. This property makes SS 321 flanges highly suitable for heat exchangers, boilers, furnace parts, exhaust systems, and chemical processing pipelines. Labdhi Metals fabricates flanges such as Weld Neck (WNRF), Slip-On (SORF), Blind (BLRF), Socket Weld, Threaded, and Lap Joint flanges, all manufactured under stringent quality norms.

Stainless Steel 321 Flanges

Labdhi Metals ensures that its flanges are produced using the finest raw materials and advanced CNC machining processes, ensuring perfect dimensions, smooth finishes, and high mechanical strength. These flanges are available in a range of pressure classes—from Class 150 to Class 2500—and conform to international standards like ASME B16.5, ASME B16.47, DIN, EN, and BS. Whether for high-pressure pipelines or high-temperature exhaust systems, SS 321 flanges from Labdhi Metals provide reliable sealing and structural performance.

As a trusted stockist, Labdhi Metals maintains a large inventory of ready-to-dispatch Stainless Steel 321 flanges to meet urgent project requirements. The company exports to major global markets, including the USA, Germany, Saudi Arabia, UAE, South Africa, and Southeast Asia. All flanges are supplied with proper documentation, including Mill Test Certificates (MTCs), third-party inspection reports, and compliance with ASTM and ASME specifications.

Stainless Steel 321 Flanges Specification

Standard ASTM A182 / ASME SA182
Grade Stainless Steel 321
Size Range ½" NB to 48" NB
Pressure Class Class 150 to 2500
Types WNRF, SORF, BLRF, SWRF, Threaded, Lap Joint
Dimensions ASME B16.5, B16.47, DIN, EN, BS

With ISO-certified production facilities and a strong emphasis on quality assurance, Labdhi Metals has built a reputation for providing high-performance, corrosion-resistant flange solutions. Their customer-centric approach, global logistics network, and technical expertise make them a preferred supplier of Stainless Steel 321 flanges for industries such as petrochemical, aerospace, oil & gas, power generation, and marine engineering.



Stainless Steel 321 Flanges Chemical Composition

Element SS 321 (%)
Carbon (C) ≤ 0.08
Manganese (Mn) ≤ 2.00
Silicon (Si) ≤ 1.00
Phosphorus (P) ≤ 0.045
Sulfur (S) ≤ 0.030
Chromium (Cr) 17.0 – 19.0
Nickel (Ni) 9.0 – 12.0
Titanium (Ti) ≥ 5xC, ≤ 0.70

Stainless Steel 321 Flanges Mechanical Properties

Property SS 321
Tensile Strength (MPa) ≥ 515
Yield Strength (MPa) ≥ 205
Elongation (%) ≥ 30
Hardness (HRB) ≤ 95

Application of Stainless Steel 321 Flanges

  • Energy industries
  • Chemicals
  • Modern Architecture
  • Textile Machinery
  • Construction
  • Oil & Gas Industry
  • Ship Building
  • Pulp and Paper

Stainless Steel 321 Flangess Manufacturer, Supplier and Exporter in India

Labdhi Metals

Cities We Have Supplied Our Stainless Steel 321 Flanges

  • Mumbai
  • Ghaziabad
  • Vijayawada
  • Vadodara
  • Faridabad
  • Madurai
  • Jaipur
  • Coimbatore
  • Trivandrum
  • Mysore
  • Agra
  • Vapi
  • Aurangabad
  • Gurugram
  • Aligarh
  • Jamnagar
  • Thiruvananthapuram
  • Meerut
  • Bhubaneswar
  • Kolkata
  • Bhopal
  • Lucknow
  • Rourkela
  • Ranchi
  • Thrissur
  • Patna
  • Chennai
  • Indore
  • Jodhpur
  • Bangalore
  • Allahabad
  • Visakhapatnam
  • New Delhi
  • Surat
  • Kanpur
  • Rajkot
  • Nagpur
  • Jamshedpur
  • Bhavnagar
  • Chandigarh
  • Nashik
  • Gurugram
  • Ahmedabad
  • Noida
  • Bareilly
  • Kochi
  • Bharuch
  • Hyderabad

Countries We Have Export Our Stainless Steel 321 Flanges

  • United Kingdom
  • Turkey
  • Angola
  • Oman
  • Bahrain
  • Denmark
  • Indonesia
  • Canada
  • Egypt
  • Argentina
  • Saudi Arabia
  • Kazakhstan
  • Singapore
  • Thailand
  • Poland
  • Ukraine
  • Italy
  • Congo
  • Sri Lanka
  • Venezuela
  • South Africa
  • China
  • Qatar
  • Mexico
  • Kenya
  • Germany
  • Bangladesh
  • Algeria
  • Peru
  • Kuwait
  • USA
  • Russia
  • Australia
  • Vietnam
  • Brazil
  • Netherlands
  • Japan
  • Philippines
  • France
  • UAE