SMO 254 Ring
Specifications
| Specifications | ASTM A182, ASME SA182 |
| Standards | DIN, ASTM, BS and All International Standards |
| Flat Bar Blocks | Up to 27″ Width and 15,000 lbs |
| Cylinders & Sleeves | Up to 50″ Maximum O.D. and 65″ Maximum Length |
| Discs & Hubs | Up to 50″ Diameter and 20,000 lbs |
| Rolled, Hand Forged or Mandrel Forged Rings | Up to 84″ Maximum O.D. and 40″ Maximum Length |
Chemical Composition
Ni
17.50–18.50%
Nickel
C
0.02% Max
Carbon
Mo
6.00–6.50%
Molybdenum
Mn
1.00% Max
Manganese
Si
0.80% Max
Silicon
Cu
0.50–1.00%
Copper
S
0.01% Max
Sulphur
P
0.03% Max
Phosphorous
Cr
19.50–20.50%
Chromium
Equivalent Grades
UNS
S31254
Unified Numbering System
WNR
1.4547
Werkstoff Number
AFNOR
Z1 CNDU 20.18.06Az
French Standard
SIS
X1CrNiMoCuN20-18-7
Swedish Standard
JIS
2378
Japanese Standard
Mechanical Properties
8.0 g/cm³
Density
1320–1390 °C
Melting Point
300 MPa
Yield Strength (0.2% Offset)
650 MPa
Ultimate Tensile Strength
35% Min
Elongation
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
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ADNOC
Abu Dhabi, UAE
304 SS Square Bars, 40mm, Forged Grade
Delivered in 5 days
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Sasol Limited
Johannesburg, South Africa
SS 304 Hollow Bars, 80mm OD × 20mm wall
Delivered in 21 days
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BASF SE
Ludwigshafen, Germany
304 SS Round Bars 25–100mm, EN 10204 3.2
Delivered in 18 days
Latest Prices of Rings
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