Stainless Steel 347 Flanges are made from stabilized austenitic stainless steel, offering superior corrosion resistance, high-temperature strength, and excellent durability. These flanges are specifically designed to withstand oxidation, intergranular corrosion, and thermal stress, making them ideal for applications involving high heat and aggressive chemical environments.
SS 347 contains columbium (niobium), which enhances its resistance to carbide precipitation and makes it an excellent choice for welding applications in petrochemical, aerospace, power generation, and food processing industries.
Superior Heat Resistance SS 347 flanges can withstand temperatures up to 870°C (1600°F), making them ideal for high-temperature applications such as boilers, heat exchangers, and furnace components.
Excellent Corrosion & Oxidation Resistance With added columbium stabilization, Stainless Steel 347 Flanges offer exceptional resistance to intergranular corrosion and oxidation in harsh chemical environments.
Enhanced Weldability & Strength Unlike SS 304 or SS 316, SS 347 does not require post-weld annealing, making it highly suitable for welded structures in high-temperature conditions.
Long Service Life & Durability With its high mechanical strength, impact resistance, and low maintenance requirements, SS 347 flanges ensure long-lasting performance even in extreme industrial conditions.
As a trusted Stainless Steel 347 Flanges Manufacturer in India, we provide:
These flanges are widely used in industries such as:
| Specification | Details |
|---|---|
| Material Grade | Stainless Steel 347 (Stabilized Austenitic SS) |
| Standard | ASTM A182 / ASME SA182 |
| Size Range | ½” to 48” (DN15 to DN1200) |
| Pressure Ratings | 150#, 300#, 600#, 900#, 1500#, 2500# |
| Face Type | RF (Raised Face), FF (Flat Face), RTJ (Ring Type Joint) |
| Types | Slip-On, Weld Neck, Blind, Threaded, Socket Weld, Lap Joint, Orifice, Expander, Reducing |
| Connection Type | Bolted, Welded, Threaded |
| Temperature Resistance | Suitable for high & low temperature applications |
| Corrosion Resistance | Superior resistance to oxidation, pitting, and crevice corrosion |
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.08 max |
| Manganese (Mn) | 2.00 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.030 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 13.0 |
| Columbium (Nb) + Tantalum (Ta) | 10 x C min; 1.0 max |
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa (min) |
| Yield Strength | 205 MPa (min) |
| Elongation | 40% (min) |
| Hardness (Brinell) | 201 max |
| Hardness (Rockwell B) | 95 max |
| Region | Countries |
|---|---|
| Middle East | Saudi Arabia, UAE, Qatar, Oman, Kuwait, Turkey, Iran, Iraq, Bahrain, Israel, Jordan |
| Asia | India, Singapore, Malaysia, Thailand, South Korea, Japan, Vietnam, Indonesia, Sri Lanka |
| South America | Argentina, Brazil, Chile, Colombia, Venezuela, Ecuador |
| North America | USA, Canada, Mexico, Panama, Costa Rica |
| Europe | UK, Germany, France, Italy, Spain, Netherlands, Russia, Greece, Portugal, Ukraine |
| Africa | Nigeria, South Africa, Egypt, Algeria, Libya, Sudan |
| State | Major Cities |
|---|---|
| Maharashtra | Mumbai, Pune, Nashik, Nagpur |
| Gujarat | Ahmedabad, Surat, Rajkot, Vadodara |
| Tamil Nadu | Chennai |
| Telangana | Hyderabad |
| Karnataka | Bengaluru |
| West Bengal | Kolkata |
| Uttar Pradesh | Kanpur, Noida, Ghaziabad |
| Andhra Pradesh | Vishakhapatnam, Vijayawada |
| Union Territories | Delhi, Chandigarh |
Looking for top-quality SS 347 Flanges? We offer premium-grade flanges with certified quality, durability, and corrosion resistance. Contact us today for competitive pricing and bulk orders!