Shyam Metals & Alloys is an esteemed SS 316 Flanges Manufacturer in India, producing premier marine-grade forged flanges built specifically to perform under severe pressure and environmental stressors. Formulated with 2% to 3% Molybdenum content, our SS 316 flanges provide exceptional protection against pitting and crevice corrosion when exposed to chloride-heavy industrial setups, maritime coastlines, or harsh acid cycles.
As a trusted SS 316 Flanges Stockist in India, we carry an expansive ready inventory featuring diverse pressure classes (150# to 2500#) and configurations such as Weld Neck, Slip-On, Blind, Socket Weld, and Lap Joint. Our forging and precision machining centers operate under strict ISO-standard tolerances, ensuring that every flange matches your engineering parameters exactly.
Choosing us as your strategic SS 316 Flanges Supplier in India ensures you gain immediate access to top-grade forged flanges with fully traceable Mill Test Certificates (MTC) conforming to EN 10204 3.1. We focus on providing direct pricing, custom face finishes, and on-time industrial delivery routes to help keep your high-precision project on budget and schedule.
Technical Quick-View
- Molybdenum (Mo): 2.0% - 3.0% (Defends Pitting)
- Theoretical Density: 8.00 g/cm³
- Pressure Classes: 150# - 2500#
- Size Range: 1/2" NB to 48" NB
Technical Specifications & Standards
| Standard Compliance | ASTM A182 / ASME SA182, ASME B16.5, ASME B16.47, BS 4504, DIN 2527 |
| Alloy Grades | SS 316 (UNS S31600), SS 316L (UNS S31603 - Low Carbon), SS 316H (High Temperature) |
| Flange Types | Weld Neck (WNRF), Slip-On (SORF), Blind (BLRF), Socket Weld (SWRF), Lap Joint (LJRF), Threaded, Spectacle Blind, Orifice |
| Size Range | 1/2" (15 NB) up to 48" (1200 NB); larger on request |
| Pressure Classes | 150#, 300#, 600#, 900#, 1500#, 2500# (ANSI); PN6 - PN40 (DIN) |
| Face Types | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
| Finish Options | Machined, Buffed, Polished, Black (as-forged) |
| Certificates Supplied | MTC as per EN 10204 3.1, PMIs, Raw Material Origin Certificate, NACE MR0175 Compliance |
Chemical Profile (ASTM A182)
| Element | SS 316 (%) | SS 316L (%) |
|---|---|---|
| Carbon (C) | 0.08 max | 0.03 max (Prevents sensitization) |
| Chromium (Cr) | 16.00 – 18.00 | 16.00 – 18.00 |
| Nickel (Ni) | 10.00 – 14.00 | 10.00 – 14.00 |
| Molybdenum (Mo) | 2.00 – 3.00 | 2.00 – 3.00 (Anti-corrosion shield) |
| Manganese (Mn) | 2.00 max | 2.00 max |
| Silicon (Si) | 0.75 max | 0.75 max |
Mechanical Capability
| Tensile
Strength Minimum ultimate strength rating |
515 MPa (75,000 psi) |
| Yield Strength 0.2% Offset displacement mark |
205 MPa (30,000 psi) |
| Elongation Total stretch percentage in 50mm gauge |
40% Min |
| Hardness limits Max Brinell & Rockwell rating |
95 HRB / 217 HBW |
Key Advantages of Our SS 316 Flanges
Unrivaled Pitting Shield
The molybdenum addition creates a chemically active passivation layer that neutralizes oxidizing chlorides and halts acidic pitting at the flange face and bolt holes.
Precision Forged & Machined
Our forging presses and CNC machining lines hold bolt-circle and face-finish tolerances tightly to ASME B16.5, ensuring leak-tight joints.
316L sensitization Prevention
With low-carbon 316L, grain boundary carbon concentration is kept low, preventing post-weld cracking and intergranular corrosion around the hub.
Interactive SS 316 Flange Weight Calculator
Input your dimensions below. This calculator uses a precise density variable of 8.00 g/cm³ (specifically adjusted for Stainless Steel 316/316L alloys) and a solid-disc approximation (Outer Diameter, Bore Diameter, and Overall Thickness) for a quick estimate. For exact dispatch weights please refer to your certified mill documentation.
Typical Industrial Applications
- Marine Applications: Marine piping joints, deck fittings, dock pipelines, and offshore machinery flanged connections.
- Chemical Industry: Acid transport piping joints, chemical filters, reactors, and distillation column connections.
- Pharmaceuticals: Cleanroom piping, drug processing lines, sterile flanged fittings, and gasket interfaces.
- Food & Beverage: Brewing process piping, milk storage transfer lines, and acidic food-grade pipe joints.
Find us at the office
Director
Mr. Shyam Solanki
+91 9892324675 / +91 9867573675
Helpline
No.
080 48965776
Office: 022 66159075/ 022 23864675
