|
Grade |
C |
Si |
Mn |
P |
Cr |
Ni |
Mo |
N |
S |
Others |
|
254SMO |
≤ 0.02 |
≤0.80 |
≤1.00 |
≤ 0.03 |
19.50-20.50 |
17.50-18.50 |
6.00-6.50 |
0.18-0.22 |
≤0.01 |
Cu 0.50-1.00 |
254SMO/1.4547/S31254/X1CrNiMoCuN20-18-7 Chemical Composition
254SMO/1.4547/S31254/X1CrNiMoCuN20-18-7 Mechanical Properties
|
Grade |
Tensile Strength |
0.2 % Yield Strength Rpt |
Elongation |
Hardness |
||
|
T#0.187”(5mm) |
T>0.187”(5mm) |
Brinell |
Rockwell |
|||
|
254SMO |
≥ 98ksi(675MPa) |
≥ 95ksi(655MPa) |
≥ 45ksi(310MPa) |
≥ 35% |
≤220HBW |
≤96HRB |
254SMO/1.4547/S31254/X1CrNiMoCuN20-18-7 Applications
- Natural and treated seawater systems, desalination plants
- Pollution control: smelters (ducting, chimneys linings...)
- Bleaching equipment for pulp and paper industries (washers)
- Chemical industries: chloride containing media; phosphoric acid, sulphury acid Fine chemical production
- Oil & Gas Exploration
- Petrochemicals and Refineries
- Fertilizer Plants
- Thermal, Nuclear and Solar Power Plants
- Aerospace
- Pharmaceutical
- Food and Dairy
One of our Services--Testing
- EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% Radiography Test Report
- 100% PMI
- Heat Treatment Charts
- Third Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate( Impact Testing, Flatten, Spin,Curve, Hardness, Intergranular ,Point corrosions, Grain size, ET,UT, HT...)
- Laboratory Test Certificate from Govt. Approved Lab
- ......
One of our Services--End of Pipe and Tube
- BE : Beveled end
- BBE : Bevel both ends
- BLE : Bevel large end
- BSE : Bevel small end
- TOE / POE = Treaded One End / Plain One End
- TOE / BOE = Treaded One End / Beveled One End
- POE / BOE = Plain One End / Beveled One End
- TBE = Treaded Both Ends
- PBE = Plain Both Ends
One of our Services--Packing
- Ply Wooden Boxes
- PE Fabric Bundles
- Standard seaworthy export packing
- Plastic Bags, or as required
One of our Services--Marking
- Supplier / Manufacturer Name or Custom Logo - on request
- Specification
- Material Grade
- Nominal Size
- Schedule or Wall Thickness
- Method of Manufacturing (Seamless or Welded)
- Heat Number
Marked Pipe Sample: XTD ASTM A312 UNS S31254 SEAMLESS 42.2x 3.56*6000MM HEAT NO. 2023121205A15
254SMO/1.4547/S31254/X1CrNiMoCuN20-18-7 Material Summary
254 SMO is an austenitic stainless steel, whose chemical base consists of high amounts of molybdenum, chromium as well as nickel. Under some circumstances, the UNS S31254 SMO Seamless Pipe is considered to be a highly economical, yet commercially viable solution to applications that are prone to corrosion. In fact, the corrosion resistance properties of 250 SMO pipe is compared to nickel alloys.
It demonstrates outstanding resistance to pitting, crevice corrosion stress cracking, and corrosion fatigue uniform corrosion. 254 SMO is substantially stronger than the common austenitic grades, with strength nearly twice that of 300 series stainless steel. It is also characterized by high ductility and impact strength.
