Aluminium 1050 Round Bar Supplier
Multinox Inc. is a steel manufacturer, supplier, and stockist. We specialize in Stainless Steel 440C rings.
Stainless Steel 440C Rings is a high-carbon version of the 440-family. It is a martensitic alloy in a ring form used across a wide range of applications where material rigidity, wear resistance, and mechanical strength are required. 440C alloy rings have the highest carbon residue among the 440-family, and can achieve superior mechanical strength and firmness post heat treatment. It offers good corrosion resistance in mild to moderate environments (not severe environments). SS 440C is often one of the most reputable choices among our clients for multiple friction, repeated mechanical contact, and continuous operation environments.
There are several beneficial features of Stainless Steel 440C rings, including mechanical stability and good robustness. To bring out its ultimate properties, it requires heat treatment, which can prove cost-effective in the long run. It provides good structural integrity and wear and abrasion resistance. SS 440C is very effective when used in atmospheric conditions. These rings are often demanded by our clients for excellent performance when exposed to mechanical load and high friction. These 440C rings are constructed in different specifications to match exact operational needs. The different ring forms with 440C include forged, rolled, seamless, plate-cut, and precision-machined configurations ranging across a wide range of applications and industries. Whether your applications require structural tolerance or wear resistance, the 440C alloy ring is the last stop.
The general applications that demand 440C alloy rings are shafts, pump components, valves and bearings, bushings, tooling components, precision machinery tools, and industrial components. Stainless Steel 440C is a higher-carbon version of the alloy that can provide good mechanical properties when operated under sliding conditions or mechanical contact. It maintains corrosion resistance in mild environments and resists wear during operational conditions.
At Multinox Inc., various specification customizations are available based on OD, ID, thickness, widths, and tolerance requirements. These rings can be supplied and delivered with the required heat treatment and machining depending upon the requirements. This makes our 440C rings suitable for OEMs, engineering companies, machinery manufacturers, fabricators, and industrial procurement requirements. Stainless Steel 440C rings' ability to provide significant firmness and balanced corrosion resistance makes them remarkable across highly demanding surroundings where conventional steel just can't match the exact performance.
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Available Forms & Types
Most Common
Round Bars
Cold drawn, centreless ground & polished. Used in shafts, fasteners, machined components.
- OD: 4mm to 500mm
- Bright / Polish / Black finish
- Length: 1–6 metres
Precision
Hex Bars
Across-flat 18mm–57mm. Ideal for bolt, nut & valve body machining applications.
- 18mm – 57mm A/F
- Cold drawn condition
- Non-magnetic grade
Structural
Square Bars
Used in structural fabrication, tooling and engineering. Custom sizes available.
- 18mm – 47mm
- Bright / Rough Turned
- Custom sizes on request
Wide Range
Flat Bars
Width ½" to 10", thickness 2mm to 150mm. Sheared & edged or hot-rolled condition.
- Width: ½" to 10"
- Thickness: 2–150mm
- Custom width available
Hollow
Hollow Bars
Seamless hollow bar for bushings, sleeves & valve bodies. Saves machining time.
- OD: 4mm to 100mm
- Various wall thickness
- Centreless ground
High Strength
Forged Bars
Hot forged for superior grain structure. Heavy-duty industrial and aerospace use.
- 15mm to 300mm
- Ultrasonic tested
- Rough turned finish
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
0.95–1.20%
Carbon
Mn
1.00% Max
Manganese
P
0.04% Max
Phosphorous
S
0.03% Max
Sulphur
Si
1.00% Max
Silicon
Cr
16.00–18.00%
Chromium
Mo
0.00–0.75%
Molybdenum
Equivalent Grades
Standard
SS 440C
Stainless Steel Grade
Werkstoff
1.4125
Werkstoff Number
UNS
S44004
Unified Numbering System
JIS
SUS 440C
Japanese Standard
Mechanical Properties
1965 N/mm²
Tensile Strength (UTS)
1896 N/mm²
0.2% Yield Strength
2%
Elongation (50.8 mm)
57 HRC
Hardness
10%
Reduction of Area
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.