AMS QQ S 763 Stainless Steel 446 Round Bar Supplier
Stainless Steel 446 Round Bars — AISI 446 & EN X10CrAlSi25 Compliant — The Highest-Chromium Ferritic Grade for Furnace Work — Multinox Inc.
Multinox INC is one of the leading and foremost 439 Stainless Steel Round Bars Suppliers, specialized in producing and supplying finest quality SS 439 Bars & 439 SS Rods that meet wide range of domestic as well as global standards ASTM, IS, DIN, JIS, ASME and many more.
We strive to deliver Stainless Steel 439 Round Bars which has a better inter-granular corrosion resistance. This allows our clients to use SS 439 Round Bars in Thermal oxidizers, refinery applications etc. This 439 grade steel Round Bars has been fabricated from the best quality raw materials to guarantee higher strength. We offer outstanding SS 439 Forged bars to be used wider industries like in the plumbing, building, chemical and among other industries.
Our product line including products like Stainless Steel 439 Round Bars, Stainless Steel 439 Square Bars and 439 Stainless Steel Flat Bars are accessible in different sizes and specifications, to suit the needs of our clients. We supply SS 439 Square Bars and SS 439 Polished Round Bars for applications in jet engine parts, exhaust manifolds, and turbo-superchargers. 439 Stainless Steel Threaded Bars are products of choice for applications in the temperature range of up to about 900°C.
Our SS 439 Round Bars is most common and widely used Grades of Stainless Steel Round Bars that are accessible to our valuable customers in a varied range of diameters, wall thicknesses and sizes, and also in a customized form that meets their specifications and requirements. Our products are packaged in such a manner that they are not damaged throughout transit. We are a highly competent ISO certified company which offers these products at quite affordable rates. Contact us now to request a quote!
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
AISI 446 Round Bar — Specifications
Burner parts, furnace fixtures, boiler hardware — Stainless Steel 446 Round Bars arrive cut-to-length with complete WNR 1.4762 documentation.
| Product | AMS QQ-S-763 Stainless Steel 446 Round Bar |
| Specifications | QQ-S-763, ASTM A276, ASME SA276, ASTM A479, ASME SA479 |
| Dimensions / Standards | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| UNS S44600 Round Bars | Outside Diameter: 4 mm to 500 mm |
| SUS 446 Round Bars | Outside Diameter: 4 mm to 100 mm |
| 1.4762 Hex Bars | 18 mm – 57 mm (11/16" – 2-3/4") |
| X10CrAlSi25 Square Bars | 18 mm – 47 mm (11/16" – 1-3/4") |
| UNS S44600 Flat Bars | 1/2" to 10" Width, 2 mm to 150 mm Thickness |
| Finish | Black, Bright Polished, Rough Turned, No.4 Finish, Matt Finish, BA Finish |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging, etc. |
Chemical Composition of UNS S44600 Round Bar
Aluminium and silicon join the chemistry of Stainless Steel 446 Round Bars, tightening the oxide layer that blocks further attack.
C
0.20 max
Carbon
Mn
1.50 max
Manganese
Si
0.75 max
Silicon
P
0.040 max
Phosphorus
S
0.030 max
Sulphur
Cr
23.00 – 30.00%
Chromium
Ni
0.50 max
Nickel
N
0.10 – 0.25%
Nitrogen
check Equivalent Grades of WNR 1.4762 Round Bar
Stainless Steel 446 Round Bars hold mapped identities across American, German and European standards — cross-border sourcing simplified.
QQ-S
QQ-S-763
QQ-S Standard
AISI
446
AISI
UNS
S44600
UNS
WNR
1.4762
Werkstoff
JIS
SUS 446
Japanese Standard
EN
X10CrAlSi25
European Standard
EN X10CrAlSi25 Round Bar Mechanical Properties
With high ferritic strength and solid ductility in the annealed state, Stainless Steel 446 Round Bars fabricate reliably despite their heat duties.
| Density | 7.50 g/cm³ |
| Melting Point | 1510°C (2750°F) |
| Tensile Strength | 485 MPa |
| Yield Strength (0.2% Offset) | 275 MPa |
| Elongation | 20% |
| Hardness | Approx. 183 HB |
Stainless Steel 446 Round Bar Weight Chart
| Diameter (mm) | Weight (kg/m) |
|---|---|
| 6 | 0.22 |
| 8 | 0.39 |
| 10 | 0.62 |
| 12 | 0.89 |
| 16 | 1.58 |
| 20 | 2.47 |
| 25 | 3.85 |
| 30 | 5.55 |
| 40 | 9.87 |
| 50 | 15.42 |
| 60 | 22.20 |
| 75 | 34.68 |
| 100 | 61.65 |
Weight Formula: Weight (kg/m) = (D² × 0.006165), where D is the bar diameter in millimeters.
QQ-S-763 Stainless Steel 446 Round Bar Size Range
| Product Form | Size Range |
|---|---|
| Round Bar | 4 mm – 500 mm OD |
| Bright Bar | 4 mm – 100 mm OD |
| Hex Bar | 18 mm – 57 mm |
| Square Bar | 18 mm – 47 mm |
| Flat Bar | Width: 1/2" – 10", Thickness: 2 mm – 150 mm |
| Length | 1–6 Meters, Custom Cut Lengths |
Recent UNS S44600 Stainless Steel 446 Round Bar Export Deliveries
🇸🇦
Saudi Aramco Total
Al Jubail, Saudi Arabia
30mm Diameter Annealed Bars, Stainless Steel 446
Delivered in 7 days
🇺🇸
Hess Corporation
New York City, USA
UNS S44600 Hot Rolled Bars, 50mm Diameter
Delivered in 14 days
🇬🇧
Shell PLC
London, United Kingdom
EN X10CrAlSi25 Turned Bars, 22mm Diameter
Delivered in 14 days
🇦🇪
ADNOC
Abu Dhabi, UAE
Cold Drawn Bars, 18mm Diameter, Stainless Steel 446
Delivered in 5 days
🇿🇦
Sasol Limited
Johannesburg, South Africa
100–200mm Diameter Hot Rolled Bars, Stainless Steel 446
Delivered in 21 days
🇩🇪
BASF SE
Ludwigshafen, Germany
WNR 1.4762 Peeled Bars, 40–90mm Diameter
Delivered in 18 days
Availability of UNS S44600 Round Bar
| Stainless Steel 446 Bright Round Bar | UNS S44600 Black Round Bar |
| WNR 1.4762 Polished Round Bar | EN X10CrAlSi25 Peeled Round Bar |
| QQ-S-763 Stainless Steel 446 Turned Round Bar | AISI 446 Ground Round Bar |
| UNS S44600 Hot Rolled Round Bar | WNR 1.4762 Cold Drawn Round Bar |
| EN X10CrAlSi25 Bright Round Bar | QQ-S-763 Stainless Steel 446 Black Round Bar |
| Stainless Steel 446 Polished Round Bar | UNS S44600 Peeled Round Bar |
| WNR 1.4762 Turned Round Bar | EN X10CrAlSi25 Ground Round Bar |
| AISI 446 Hot Rolled Round Bar | Stainless Steel 446 Cold Drawn Round Bar |
| UNS S44600 Bright Round Bar | WNR 1.4762 Black Round Bar |
| EN X10CrAlSi25 Polished Round Bar | QQ-S-763 Stainless Steel 446 Peeled Round Bar |
EN X10CrAlSi25 Round Bar — Latest Prices
Multinox INC offers UNS S44600 Round Bars at one of the most competitive prices in India. Request the latest Pricelist using the contact form here.