SMO 254 Pipe Supplier
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 Grade | SMO 254 / UNS S31254 / WNR 1.4547 |
| Standards | ASTM A312 / ASME SA312 |
| Seamless Pipe Size | OD: 6.0 to 630 mm | WT: 0.3 to 50 mm | Length: Single Random, Double Random & Cut Length |
| Welded Pipe Size | OD: 6.0 to 630 mm | WT: 0.3 to 50 mm | Length: Up to 26 Meters |
| ERW Pipe Size | OD: 10 to 600 mm | WT: 2.5 to 100 mm | Length: 0.5 to 12 Meters |
| Pipe Forms | Round, Square, Rectangular, Oval |
| Manufacturing Process | Seamless, Welded, ERW, Fabricated |
| Manufacturing Technique | Hot Formed, Cold Formed, Precision Rolled |
| Surface Finish | Polished, Mirror, Annealed, Bright |
| Pipe Ends | Plain End, Beveled End |
| Testing | PMI Test, Ultrasonic Test, Chemical Test, Mechanical Test |
| Documentation | NABL Approved Lab Reports, Raw Material Test Reports |
| Origin | European, Japanese, Korean, Indian |
| Packaging | Steel Strips Bundled, Bubble Wrap, Wooden Boxes, Custom Packaging |
| Density | 8.0 g/cm³ |
| Melting Point | 1320°C – 1390°C |
| Working Temperature | 1150°C – 1200°C (2100°F – 2190°F) |
| Key Features | Superior Corrosion Resistance, High Strength, Good Ductility |
Chemical Composition
Mn
1.0 Max
Manganese
N
0.18 – 0.22
Nitrogen
C
0.20 Max
Carbon
Cr
20.0 Max
Chromium
Mo
6.0 – 6.5
Molybdenum
Ni
18.0 Max
Nickel
Si
1.0 Max
Silicon
P
0.30 Max
Phosphorus
Cu
0.5 – 1.0
Copper
S
0.010 Max
Sulfur
EQUIVALENT GRADES
Grade
254 SMO Pipe
Material
Flange
254 SMO Flanges
Matching Flanges
ASTM
ASTM A312 UNS S31254
American Standard
W.NR
1.4547
Werkstoff / DIN / EN
Mechanical Properties
650 – 850 MPa
Ultimate Tensile Strength
35%
Elongation
50%
Reduction of Area
270 HB
Hardness (Brinell)
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
Latest Prices of Pipes
Multinox INC offers Pipes at one of the most competitive prices in India. Request the latest Pipes Pricelist using the contact form here.