Stainless Steel Pipe Flange
High-Quality Stainless Steel Pipe Flanges for Industrial Use
SSM is a leading stainless steel pipe flange manufacturer, specializing in 304, 316, and 316L grades. Our flanges are designed for high-pressure, high-temperature, and corrosive environments, ensuring reliability across industries such as oil & gas, chemical processing, water treatment, and food & beverage.
Stainless Steel Pipe Flange Specifications
1. Standard Dimensions & Pressure Ratings
| Type | Size Range | Pressure Ratings | Standards |
|---|---|---|---|
| Slip-On (SO) | 1/2" – 60" (DN15 – DN1500) | 150LB – 2500LB (PN6 – PN100) | ASME B16.5, DIN, JIS, EN |
| Weld Neck (WN) | 1/2" – 60" (DN15 – DN1500) | 150LB – 2500LB (PN6 – PN100) | ASME B16.5, DIN, JIS, EN |
| Blind (BL) | 1/2" – 60" (DN15 – DN1500) | 150LB – 2500LB (PN6 – PN100) | ASME B16.5, DIN, JIS, EN |
| Threaded (TH) | 1/2" – 24" (DN15 – DN600) | 150LB – 900LB (PN6 – PN40) | ASME B16.5, DIN, JIS |
| Socket Weld (SW) | 1/2" – 4" (DN15 – DN100) | 150LB – 600LB (PN6 – PN25) | ASME B16.5, DIN |
| Lap Joint (LJ) | 1/2" – 60" (DN15 – DN1500) | 150LB – 900LB (PN6 – PN40) | ASME B16.5, DIN |
2. Material Properties Comparison
| Grade | 304 (A182 F304) | 316 (A182 F316) | 316L (A182 F316L) |
|---|---|---|---|
| Carbon Content | ≤0.08% | ≤0.08% | ≤0.03% |
| Nickel (Ni) | 8–10.5% | 10–14% | 10–14% |
| Molybdenum (Mo) | – | 2–3% | 2–3% |
| Corrosion Resistance | Good (general use) | Excellent (acid/chemical) | Superior (chloride/saltwater) |
| Max Temp. Range | -196°C to 800°C | -196°C to 800°C | -196°C to 800°C |
3. Flange Face Types & Finishes
Raised Face (RF) – Standard for high-pressure sealing
Flat Face (FF) – Used for low-pressure applications
Ring-Type Joint (RTJ) – Ideal for extreme pressure/vacuum
Surface Finishes:
Mechanical Polish (#180 to #600 grit)
Electropolish (for ultra-smooth, hygienic surfaces)
Pickling & Passivation (for enhanced corrosion resistance)
Why Choose SSM Stainless Steel Pipe Flanges?
✔ Precision Machining – CNC-controlled for tight tolerances (±0.05mm)
✔ Full Material Traceability – MTC & PMI testing available
✔ Pressure Testing – Hydrostatic tested at 1.5x working pressure
✔ Global Certifications – ISO 9001, PED, ASME, CE compliant
✔ Custom Solutions – Non-standard sizes, special coatings, and exotic alloys
Applications of SSM Stainless Steel Pipe Flanges
Oil & Gas: Pipeline connections, refinery equipment
Chemical Processing: Acid-resistant piping systems
Water Treatment: Desalination plants, wastewater systems
Food & Pharma: Hygienic, corrosion-free fluid transfer
Marine & Offshore: Saltwater-resistant flanges for ships & rigs
Custom & Specialty Flanges Available
Large Diameter Flanges (up to DN3000 / 120")
High-Pressure Flanges (up to 2500LB / PN100)
Exotic Alloys (Duplex, Super Duplex, Hastelloy)
Special Coatings (PTFE-lined, galvanized options)
Request a Quote Today!
SSM provides competitive pricing, fast lead times, and technical support for all stainless steel pipe flange needs. Contact us for material certifications, CAD drawings, and bulk order discounts.
Hot Tags: stainless steel pipe flange, China stainless steel pipe flange manufacturers, suppliers, factory, alloy 400 flanges, inconel 600 flanges, Incoloy Flanges, titanium gr 2 flanges, incoloy 825 flanges, stainless flange
You Might Also Like
Send Inquiry