Stainless Steel 347 Ring
Multinox Inc. is a manufacturer, supplier, and stockist of Stainless Steel 347 Rings.
Stainless Steel 347 Rings are an exceptional option in austenitic steel created for high-performance environments. This alloy ring provides excellent resistance to corrosion across elevated temperature zones. Alloy 347 rings contain portions of niobium to overall provide material stabilisation. The presence of niobium elements also resists precipitation of chromium carbides into grain boundaries during the welding procedures and high-temperature environments. SS 347 rings are often the best choice for high-heat applications.
This SS 347 alloy ring is recommended across several demanding applications. These rings provide excellent resistance to general corrosion and intergranular corrosion. It features excellent stability and elevated temperature strength while maintaining excellent anti-corrosive properties. The presence of niobium helps retain continuous resistance even in high-temperature environments. 347 Stainless Steel rings are compatible with machining, fabrication, and certain assembly applications. Stainless Steel 347 alloy rings are available in forged rings, plate-cut rings, rolled rings, and custom-made thicknesses, diameters, and specifications to match the exact requirements of fabrication applications. The 347 ring engineering process follows precise dimensional accuracy and excellent mechanical properties that can perform excellently in various service environments.
Usual applications such as chemical processing equipment, power generation components, heat exchangers, petrochemical plants, high-heat piping systems and valves, aerospace components, and many more require the strength of SS 347 rings.
Industries and applications highly demand 347 alloy rings to ensure production performance when exposed to strict environments. Applications that are mainly heat-, pressure-, and corrosion-exposed equipment require 347 alloy. These grade rings often perform in welded assemblies when operation is done at high temperatures, since stabilised material of 347 alloy minimizes the degradation of chromium carbides and subsequently encounters intergranular corrosion.
At Multinox Inc, we manufacture and design 347 SS rings based on the required drawing, dimensional precision, and international quality standards. We are RoHS and REACH compliant to manage the international supply chain. A Material Test Report (MTR) is also available to ensure complete satisfaction. Multinox Inc.'s Stainless Steel 347 rings feature a combination of weldability, high-temperature stabilized performance, and corrosion resistance to meet your industrial demands. Request a quote now with OD, ID, and thickness requirements to allow us to assist you accordingly.
Specifications
| Material | Stainless Steel |
| Form | Seamless Rolled Ring, Forged Ring |
| Manufacturing Process | Open Die Forging, Ring Rolling, CNC Machining |
| Outside Diameter (OD) | 145 mm to 3000 mm |
| Inside Diameter (ID) | As per Customer Requirement |
| Maximum Thickness | 300 mm |
| Maximum Face Height | Up to 49 Inches (1245 mm) |
| Maximum Weight | 60,000 lbs (Approx. 27,200 kg) |
| Tolerance | ±0.003" (or as per customer drawing) |
| Surface Finish | Rough Machined, Fully Machined, Bright, Black, Polished |
| Heat Treatment | Annealed, Solution Annealed, Normalized, Quenched & Tempered, As Required |
| Testing | PMI, Ultrasonic Test (UT), Liquid Penetrant Test (LPT), NDT, Hardness Test, Dimensional Inspection |
| Certification | EN 10204 3.1, Mill Test Certificate (MTC) |
| Standards | ASTM, ASME, DIN, EN, ISO (Depending on Material Grade) |
| Applications | Oil & Gas, Petrochemical, Chemical Processing, Marine, Power Plants, Heat Exchangers, Pressure Vessels, Aerospace, Heavy Engineering, Offshore, Fabrication |
| Packaging | Wooden Boxes, Pallets, Bubble Wrap, Export Worthy Packaging |
Chemical Composition
C
0.08% (347)
0.04–0.10% (347H)
0.04–0.10% (347H)
Carbon
Cr
17.0–19.0%
Chromium
Si
0.75%
Silicon
P
0.045%
Phosphorous
S
0.030%
Sulphur
Ni
9.0–13.0%
Nickel
Mn
2.00%
Manganese
Nb
10 × C (Min)
1.00% (Max)
1.00% (Max)
Niobium
Equivalent Grades
AFNOR
Z6CNNb18-10
French Standard
EN
X6CrNiNb18-10 (1.4550)
European Standard
USA
347
AISI Grade
SS
2338
Swedish Standard
BS
347S31
British Standard
GOST
08KH18N12B
Russian Standard
Mechanical Properties
75 ksi (Min)
Tensile Strength
92 HRB (Max)
Rockwell Hardness
30 ksi (Min)
Yield Strength
40% (Min)
Elongation
Size Range
| Thickness (Inches) | Outer Diameter (OD) (Inches) | Thickness (mm) | Outer Diameter (OD) (mm) |
|---|---|---|---|
| 0.20 | 3.94 - 5.91 | 5 | 100 - 150 |
| 0.39 | 5.91 - 7.87 | 10 | 150 - 200 |
| 0.59 | 7.87 - 9.84 | 15 | 200 - 250 |
| 0.79 | 9.84 - 11.81 | 20 | 250 - 300 |
| 0.98 | 11.81 - 15.75 | 25 | 300 - 400 |
| 1.18 | 15.75 - 19.69 | 30 | 400 - 500 |
| 1.57 | 19.69 - 23.62 | 40 | 500 - 600 |
| 1.97 | 23.62 - 31.50 | 50 | 600 - 800 |
| 2.95 | 31.50 - 39.37 | 75 | 800 - 1000 |
| 3.94 | 39.37 - 59.06 | 100 | 1000 - 1500 |
| 5.91 | 59.06 - 78.74 | 150 | 1500 - 2000 |
| 7.87 | 78.74 - 98.43 | 200 | 2000 - 2500 |
| 9.84 | 98.43 - 118.11 | 250 | 2500 - 3000 |
| 11.81 | 118.11 | 300 | 3000 |
Recent Export Deliveries
🇸🇦
Saudi Aramco Total
Al Jubail, Saudi Arabia
304 SS Round Bars, 50mm OD, ASTM A276
Delivered in 7 days
🇺🇸
Hess Corporation
New York City, USA
SS 304 Hex Bars, 40mm A/F, Cold Drawn
Delivered in 14 days
🇬🇧
Shell PLC
London, United Kingdom
304 SS Flat Bars, 100×20mm, Bright Finish
Delivered in 14 days
🇦🇪
ADNOC
Abu Dhabi, UAE
304 SS Square Bars, 40mm, Forged Grade
Delivered in 5 days
🇿🇦
Sasol Limited
Johannesburg, South Africa
SS 304 Hollow Bars, 80mm OD × 20mm wall
Delivered in 21 days
🇩🇪
BASF SE
Ludwigshafen, Germany
304 SS Round Bars 25–100mm, EN 10204 3.2
Delivered in 18 days
Availability of Stainless Steel Rings
| Stainless Steel 304 Ring | Stainless Steel 304L Ring |
| Stainless Steel 316 Ring | Stainless Steel 316L Ring |
| Stainless Steel 316Ti Ring | Stainless Steel 310 Ring |
| Stainless Steel 317L Ring | Stainless Steel 321 Ring |
| Stainless Steel 347 Ring | Stainless Steel 347H Ring |
| Stainless Steel 410 Ring | Stainless Steel 416 Ring |
| Stainless Steel 420 Ring | Stainless Steel 430 Ring |
| Stainless Steel 440 Ring | Stainless Steel 440C Ring |
| Stainless Steel 446 Ring | ASTM A268/A268M UNS S44600 Ring |
| ASTM A268/A268M EN 1.4749 Ring | 17-4PH Stainless Steel Ring |
| 15-5PH Stainless Steel Ring |
Latest Prices of Rings
Multinox INC offers Rings at one of the most competitive prices in India. Request the latest Rings Pricelist using the contact form here.