Precision Engineered Solutions by Nakoda Steel Industry
Nakoda Steel Industry, a globally recognized name in the metallurgy and piping components sector, is engaged in the manufacturing, stocking, and exporting of premium-grade Stainless Steel 304L Flanges. Engineered to meet the highest international quality standards, our SS 304L flanges are widely trusted by clients in industries such as petrochemical, power generation, marine engineering, oil & gas, pharmaceuticals, food processing, and pulp & paper plants.
As a low-carbon version of the standard 304 grade, Stainless Steel 304L (UNS S30403) provides superior corrosion resistance and excellent weldability, making it the alloy of choice for high-performance systems where strength, hygiene, and resistance to chemical degradation are paramount.
What is stainless steel 304L?
Stainless Steel 304L is an austenitic stainless steel alloy with a low carbon content (maximum 0.03%), combined with chromium (18–20%) and nickel (8–12%). The “L” denotes “low carbon”, which significantly reduces the risk of sensitization during welding or high-temperature exposure.
This material exhibits:
Excellent resistance to intergranular corrosion (IGC) after welding
Enhanced formability and superior surface finish
High tensile strength and ductility under both cryogenic and elevated temperatures
Comprehensive Range of SS 304L Flange Types
At Nakoda Steel Industry, we offer a diverse portfolio of flanges made from SS 304L to suit varied piping and industrial requirements:
Slip-On Flanges (SORF): Quick fitment and alignment for low-pressure systems
Threaded Flanges (THRF): Ideal for non-welded pipe systems with secure connections
Weld Neck Flanges (WNRF): Long tapered hub for stress-intensive, high-pressure applications
Blind Flanges (BLRF): Used to close pipe ends; essential for testing and isolation
Socket Weld Flanges (SWRF): For small diameter high-pressure lines
Lap Joint Flanges (LJ): Ideal for systems requiring frequent disassembly
Ring Type Joint Flanges (RTJ): Leak-proof sealing in high-pressure, high-temperature environments
Spectacle Blind Flanges, Spacer Rings, Nippolets, and Custom Machined Flanges
Each flange is manufactured in strict adherence to ASTM, ASME, DIN, EN, and BS international standards, with precise machining, surface treatment, and marking.
Global Export Capability
Nakoda Steel Industry is a trusted global exporter, supplying SS 304L flanges to over 40 countries, including the United States, United Kingdom, Canada, Germany, UAE, Singapore, and Australia. Our flanges are widely used in critical projects for their reliability, dimensional accuracy, and material traceability.
We ensure fast lead times, certified documentation, and packaging as per international export norms.
Technical Specifications – SS 304L Pipe Flanges |
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Parameter |
Details |
|
| Standards | : | ASTM A182 / ASME SA182 |
| Material Grade | : | Stainless Steel 304L (UNS S30403 / 1.4306) |
| Size Range | : | ½” (15NB) to 48” (1200NB) |
| Pressure Ratings | : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6 to PN64 |
| Face Types | : | RF, FF, RTJ |
| Design Standards | : | ANSI/ASME B16.5, B16.47 A/B, B16.48, BS4504, EN-1092, DIN, JIS, GOST |
Corrosion & Performance Characteristics
Superior Chloride Resistance: Effective in acidic chloride environments—suitable for bleach and paper processing plants
Sulfuric Acid Resistance: Endures up to 5% sulfuric acid at temperatures up to 120°F (49°C)
Oxidation Resistance: Stable in strongly oxidizing media due to alloying with niobium and tantalum
Hygienic Compliance: Preferred in food-grade and pharmaceutical applications for its smooth surface and easy cleaning
Temperature Range: Performs in both cryogenic conditions and temperatures up to 870°C (1600°F)
Not recommended for continuous exposure in chloride-rich environments or high concentrations of sulfuric acid without
additional alloying.
Test Certificates & Inspection Standards
Every shipment from Nakoda Steel Industry is backed by certified testing documentation and comprehensive material traceability.
Certificates Provided:
· EN 10204 3.1 / 3.2 Manufacturer Test Certificate (MTC)
· Raw Material Traceability Report
· 100% Radiographic Testing (RT) Report
· Third-Party Inspection (TPI) Reports – Lloyd’s, TUV, BV, DNV (on request)
· NACE MR0175 / MR0103 Compliance (when applicable)
· Ferrite Content Report (as per client requirement)
Quality Assurance & Material Testing
We conduct extensive destructive and non-destructive tests before shipment to ensure product durability and compliance with international standards:
Tensile and Yield Strength Tests
Hardness and Impact Testing
Spectro Chemical Analysis
Positive Material Identification (PMI)
Pitting Resistance Testing (ASTM G48)
Macro and Microstructure Examination
Flaring and Flattening Tests
Intergranular Corrosion (IGC) Testing per ASTM A262
Why Choose Nakoda Steel Industry?
Decades of manufacturing excellence in stainless steel forging
ISO 9001:2015 certified facility with CNC machining and
inspection systems
On-time delivery with global logistics support
Custom sizes and non-standard flanges made to order
Strong supply chain & inventory, enabling bulk project
supply
Unmatched technical expertise and after-sales support
Get in Touch with Us
Looking for a reliable Stainless Steel 304L Flanges
supplier for your industrial project or distribution network? Partner
with Nakoda Steel Industry for assured quality, certified
material, and global shipping excellence.