SMO 254 Round Bar Supplier
Multinox Inc — Stockist & Exporter of WNR 1.4547 SMO 254 Round Bar, the Step Up from 316L That Chloride Projects Keep Demanding.
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
SIS 2378 Round Bar — Specifications
Every SMO 254 Round Bar ships with heat-specific mill test certificates — third-party inspection available on request.
| Product | SMO 254 Stainless Steel Round Bar |
| Specifications | ASTM A276, ASTM A479, ASME SA276, ASME SA479 |
| Dimensions / Standards | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| UNS S31254 Round Bars | Diameter: 3 mm – 800 mm |
| 1.4547 Round Bars | Diameter: 3 mm – 100 mm |
| 254 SMO Hex Bars | 2 mm – 100 mm A/F |
| X1CrNiMoCuN20-18-7 Square Bars | 4 mm – 100 mm |
| UNS S31254 Flat Bars | Thickness: 2 – 100 mm, Width: 10 – 500 mm |
| Finish | Cold Drawn, Bright Drawn, Centreless Ground, Cold Finished, Peeled & Turned, Smooth Turned, Hot Rolled, Rough Turned |
| Length | 1 to 6 Meters, Custom Cut Lengths |
| Form | Round, Square, Hex, Flat, Rectangle, Hollow, Billet, Forging, Precision Ground Bar |
view Chemical Composition of JIS SUS312L Round Bar
Nitrogen inside SMO 254 Round Bar does double duty — strengthening the structure while pushing pitting resistance even higher.
C
0.02 max
Carbon
Mn
1.00 max
Manganese
Si
0.80 max
Silicon
P
0.03 max
Phosphorus
S
0.01 max
Sulphur
Cr
19.5 – 20.5%
Chromium
Ni
17.5 – 18.5%
Nickel
Mo
6.0 – 6.5%
Molybdenum
N
0.18 – 0.22%
Nitrogen
Cu
0.50 – 1.00%
Copper
Fe
Balance
Iron
check Equivalent Grades of AFNOR Z1 CNDU 20.18.06Az Round Bar
Sweden says SIS 2378, Japan says JIS SUS312L, France says AFNOR Z1 CNDU 20.18.06Az — SMO 254 Round Bar answers every one.
WNR
1.4547
Werkstoff
EN
X1CrNiMoCuN20-18-7
European Standard
JIS
SUS312L
Japanese Standard
254 SMO®
254 SMO
Trade Name
WNR 1.4547 Round Bar Mechanical Properties
Shaft and fastener makers choose SMO 254 Round Bar when strength and seawater both sit on the same specification sheet.
| Property | Value |
|---|---|
| Density | 8.0 g/cm³ |
| Melting Range | 1320 – 1390°C |
| Tensile Strength | 650 MPa Min |
| Yield Strength (0.2%) | 300 MPa Min |
| Elongation | 35% Min |
| Hardness | 270 HB Max (100 HRB Max) |
ASTM A276 SMO 254 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.
view EN X1CrNiMoCuN20-18-7 Round Bar Size Range
| Product Form | Available Size |
|---|---|
| Round Bar | 3 – 800 mm Diameter |
| Bright Bar | 3 – 100 mm Diameter |
| Hex Bar | 2 –100 mm A/F |
| Square Bar | 4 –100 mm |
| Flat Bar | Thickness: 2 –100 mm, Width: 10 –500 mm |
| Length | 1–6 Meters, Custom Cut Lengths |
Recent SMO 254 Round Bar Export Deliveries
🇸🇦
Saudi Aramco Total
Al Jubail, Saudi Arabia
ASTM A276 Bright Round Bars, 20mm Diameter
Delivered in 7 days
🇺🇸
Hess Corporation
New York City, USA
UNS S31254 Peeled & Turned Bars, 42mm
Delivered in 14 days
🇬🇧
Shell PLC
London, United Kingdom
EN X1CrNiMoCuN20-18-7 Polished Round Bars, 28mm
Delivered in 14 days
🇦🇪
ADNOC
Abu Dhabi, UAE
JIS SUS312L Cold Drawn Round Bars, 55mm
Delivered in 5 days
🇿🇦
Sasol Limited
Johannesburg, South Africa
254 SMO Centerless Ground Bars, 78mm
Delivered in 21 days
🇩🇪
BASF SE
Ludwigshafen, Germany
WNR 1.4547 Hot Rolled Black Bars, 50mm
Delivered in 18 days
Availability of ASTM A479 SMO 254 Round Bar
| SMO 254 Bright Round Bar | ASTM A276 Black Round Bar |
| UNS S31254 Polished Round Bar | 254 SMO Peeled Round Bar |
| WNR 1.4547 Turned Round Bar | EN X1CrNiMoCuN20-18-7 Ground Round Bar |
| JIS SUS312L Cold Drawn Round Bar | ASTM A479 Hot Rolled Round Bar |
| AFNOR Z1 CNDU 20.18.06Az Peeled & Polished Round Bar | SIS 2378 Centerless Ground Round Bar |
| EN X1CrNiMoCuN20-18-7 Bright Bar | WNR 1.4547 Black Bar |
| ASTM A276 Polished Bar | SMO 254 Peeled Bar |
| JIS SUS312L Turned Bar | UNS S31254 Ground Bar |
| 254 SMO Cold Drawn Bar | ASTM A479 Hot Rolled Bar |
| SIS 2378 Peeled & Polished Bar | AFNOR Z1 CNDU 20.18.06Az Centerless Ground Bar |
UNS S31254 Round Bar Latest Prices
Multinox INC offers ASTM A276 SMO 254 Round Bars at one of the most competitive prices in India. Request the latest Pricelist using the contact form here.