Office Address
- G/81, Ground Floor, C Sarvodaya Nagar, Panjrapole 1st Lane Madhav Baug, Mumbai 400004
- sales@nirvaanoverseas.com
- +91 77386 88058
- +91 22 4014 5829 Call Now
Technical Product Details
| Primary Featured Alloys | Molybdenum-Bearing Austenitic Stainless Steel 316 (UNS S31600), Stainless Steel 316L (UNS S31603) |
| Manufacturing Standards | ASTM A240 / ASME SA240 (Plate/Sheet), ASTM A182 / ASME SA182 (Forged Rings), BS 316S31 / 316S11 |
| Size Range | Thickness from 1 mm to 100 mm | Outer Diameter up to 2000 mm | Inner Diameter from 50 mm to 1000 mm (Tool Cut) & >1000 mm (Plasma Cut) |
| In-House Quality Verification | Handheld PMI Chemical Analysis, Laser Scanning & Micrometer Checks, Ultrasonic Testing (UT) per ASTM A388, EN 10204 3.1 Certification |
Table of Contents
Nirvaan Overseas is a premier SS 316 Rings & Circles Manufacturer in India, producing precision cut discs, blind flanges, backing rings, and forged blanks for marine and chloride environments. Using plasma, punch, and waterjet cutting, we process UNS S31600 Rings & Circles and UNS S31603 Rings & Circles from prime plate stock to exact dimensions.
Our setup handles outer diameters up to 2000 mm, inner tool-cut diameters from 50 mm to 1000 mm, and thicknesses from 1 mm to 100 mm. As a trusted SS 316 Rings & Circles Supplier and SS 316 Rings & Circles Exporter, every batch includes full heat traceability, deburred edges, PMI testing, and EN 10204 3.1 certification.
| Specification Parameter | Technical Details |
|---|---|
| Material Grades | Stainless Steel 316 (UNS S31600), Stainless Steel 316L (UNS S31603) |
| Thickness Range | 1 mm to 100 mm |
| Outer Diameter (OD) | Up to 2000 mm |
| Inner Diameter (ID) | 50 mm to 1000 mm (Tool Cut), >1000 mm (Plasma Cut) |
| Processing Methods | Plasma, Machined Cut & Punch Cutting, Abrasive Waterjet |
| Primary Standards | ASTM A240 / SA240, ASTM A182 / SA182, EN 10088-2 |
| Chemical Element | SS 316 (UNS S31600) | SS 316L (UNS S31603) |
|---|---|---|
| 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% |
| Carbon (C) | 0.08% Max | 0.03% Max |
| Manganese (Mn) | 2.00% Max | 2.00% Max |
| Silicon (Si) | 0.75% Max | 0.75% Max |
| Phosphorus (P) | 0.045% Max | 0.045% Max |
| Sulfur (S) | 0.030% Max | 0.030% Max |
| Technical Property | SS 316 (UNS S31600) | SS 316L (UNS S31603) |
|---|---|---|
| Tensile Strength | 515 MPa Min (75,000 psi) | 485 MPa Min (70,000 psi) |
| Yield Strength (0.2% Offset) | 205 MPa Min (30,000 psi) | 170 MPa Min (25,000 psi) |
| Elongation | 40% Min | 40% Min |
| Hardness (Brinell) | 217 Max | 217 Max |
| Density | 8.0 g/cm³ | 8.0 g/cm³ |
| Melting Range | 1371°C – 1399°C | 1371°C – 1399°C |
| Grade | UNS | Werkstoff Nr. | EN Standard | JIS |
|---|---|---|---|---|
| SS 316 | S31600 | 1.4401 / 1.4436 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 | SUS 316 |
| SS 316L | S31603 | 1.4404 / 1.4435 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 | SUS 316L |
Choosing the optimal cutting technology ensures dimensional accuracy and structural integrity across all custom SS 316 Rings & Circles:
Both grades feature a 2–3% molybdenum blend that resists salt water, chlorides, and harsh chemicals. The primary difference comes down to carbon content and welding suitability:
| Features | SS 316 (UNS S31600) | SS 316L (UNS S31603) |
|---|---|---|
| Carbon Level | Standard (0.08% Max) | Extra-Low (0.03% Max) |
| Best For | Machined components & high-strength rings | Heavy welding & welded pressure vessels |
| Welding Performance | May require post-weld heat treatment | Zero post-weld annealing required |
| Corrosion Resistance | Superior in ambient chemical environments | Prevents weld decay & joint corrosion |
| Mechanical Strength | Slightly higher load capacity (515 MPa Min) | Standard high-toughness strength (485 MPa Min) |
As a prominent SS 316 Rings & Circles Exporter, Nirvaan Overseas supplies certified cut blanks and forged rings to critical industrial centers worldwide:
Mumbai
Pune
Chennai
Faridabad
Saudi Arabia
Qatar
Oman
Kuwait
Germany
Italy
Netherlands
Poland
Singapore
Malaysia
Vietnam
Indonesia
Michigan
Illinois
Texas
As an ISO-certified SS 316 Rings & Circles Supplier, every batch undergoes rigorous quality protocols before shipment:
| Inspection Method | Evaluation Parameters |
|---|---|
| Dimensional & Thickness Checks | Laser scanning and micrometer verification ensuring cut tolerances within specified project limits across diameters up to 2000 mm. |
| Ultrasonic Testing (UT) | 100% UT scanning per ASTM A388 to detect internal laminations, inclusions, or subsurface voids in heavy plate blanks. |
| Spectro Chemical Analysis | Positive Material Identification (PMI) confirming molybdenum content (2–3%) and carbon control (0.03% max for 316L). |
| Material Certification | Full EN 10204 3.1 MTCs showing physical properties, heat treatment numbers, and complete melt mill origin. |
A: Yes. The 2–3% molybdenum addition in SS 316 significantly reduces pitting and crevice corrosion caused by ocean salt spray and chlorides.
A: Choose SS 316L (UNS S31603) when the component will be welded during assembly. Its 0.03% maximum carbon content prevents sensitization and intergranular corrosion in weld zones.
A: We utilize mechanical tool cutting for inner diameters between 50 mm and 1000 mm, and heavy plasma or waterjet cutting for IDs above 1000 mm.
A: As a stocking SS 316 Rings & Circles Supplier, we process plate stock into custom discs and rings in thicknesses ranging from 1 mm up to 100 mm.
A: No. Waterjet cutting is a cold process with zero Heat-Affected Zone (HAZ), preserving the full corrosion-resistant microstructure and surface chemistry of the alloy.
A: Yes, as an established SS 316 Rings & Circles Exporter, every order includes full EN 10204 3.1 MTCs with chemical heat analysis, mechanical results, and UT reports.
Contact Nirvaan Overseas—your direct SS 316 Rings & Circles Manufacturer in India for stock availability, custom cut blanks, and competitive global delivery.