Stainless Steel 316/316L Flanges Manufacturer, Supplier & Exporter in India
Astromet Steel & Engineering supplies Stainless Steel 316/316L Flanges designed for superior performance in aggressive and corrosive environments. The addition of molybdenum significantly enhances resistance to pitting, crevice corrosion, and chloride-induced attack, making these flanges ideal for marine, chemical, and coastal applications. SS 316 flanges are suitable for high-pressure services, while SS 316L flanges offer improved weldability with reduced risk of carbide precipitation, ensuring long-term corrosion resistance even after extensive welding.
These flanges demonstrate excellent mechanical strength, toughness, and resistance to extreme temperatures, making them suitable for demanding industrial operations. Astromet Steel & Engineering manufactures SS 316/316L flanges using advanced forging techniques and precision machining to achieve superior surface finish, dimensional accuracy, and consistent quality. Each flange undergoes strict quality inspection to ensure compliance with international standards and pressure ratings.
Stainless Steel 316/316L flanges are widely used in oil and gas pipelines, offshore platforms, chemical processing plants, pharmaceutical manufacturing units, desalination plants, marine equipment, and heat exchangers. Their ability to withstand harsh chemical exposure and saline environments makes them a reliable solution for critical applications where safety and durability are paramount.
Types Of Stainless Steel Flanges
- Weld Neck Flange
- Slip On Flange
- Blind Flange
- Socket Weld Flange
- Threaded Flange
- Forged Flange
- OrificeFlange
Stainless Steel 316/316L Flanges Specifications
| Specifications List | ASTM A182 / ASME SA182 |
|---|---|
| Class / Pressure Rating | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Size Chart | 1/2″ (15 NB) to 48″ (1200NB) |
| ASTM Standards | ANSI/ASME B16.5, B16.48, BS4504, B 16.47 Series A & B, BS 10, EN-1092, DIN, etc. |
| Standard s | ANSI, ASME, BS, DIN, EN etc. |
SS 316/316L Flanges Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
|---|---|---|---|---|---|---|---|
| SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17-11-02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17-11-02 / Z3CND18-14-03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
| SS 316H | 1.4401 | S31609 | – | – | – | – | – |
Stainless Steel 316/316L Flanges Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 316 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 13 | – |
| SS 316H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
316/316L Stainless Steel Flanges Mechanical Properties
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| SS 316 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
| SS 316L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 13 | – |
| SS 316H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
Why Choose Astromet Steel & Engineering?
This advanced resistance to intergranular corrosion because of the
- Consistent quality & competitive pricing
- Ready stock & custom fabrication
- International standard compliance
- On-time delivery worldwide
- Complete documentation & certification
Stainless Steel 316 / 316L Flanges Usage & Applications
Widely used in marine equipment, offshore platforms, chemical plants, oil & gas pipelines, pharmaceutical industries, and desalination plants.