254 SMO Pipe Supplier, 254 SMO Seamless Pipe Stockist
254 SMO Pipe made by a high-alloy austenitic stainless steel developed for use in seawater and other aggressive chloride-bearing media. SMO 254 Round Pipes (UNS S31254) is an austenitic stainless steel designed
for maximum resistance to pitting and crevice corrosion. SMO 254 Welded Pipe is developed for use in halide-containing environment such as seawater. 254 SMO Seamless Pipe has excellent resistance to a wide
range of atmospheric environments and many corrosive media. Alloys 254 / 254 SMO / 6 Mo Pipe which is also known as 18 / 8 stainless steel and is the most common stainless steel.
254 SMO Pipe Specifications
| Specifications |
ASTM B 167 ASME SB 167 / ASTM B 829 ASME SB 829 / ASTM B 517 ASME SB 517 |
| 254 SMO Seamless Pipe size |
4 to 219mm W. T.: 0.5 to 20mm |
| 254 SMO Welded Pipe size |
|
| 254 SMO EFW Pipe size |
5.0 mm – 1219.2 mm |
| Specialized in |
Large Diameter Size |
| Schedule |
SCH5, SCH10, SCH40, STD, SCH80, SCH160 |
| Alloy Finish |
Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Form |
Round, Square, Hollow, Rectangular, Hydraulic, Straight Pipes Etc. |
| Length |
Single Random, Double Random & Cut Length. |
| End |
Plain End, Beveled End, Treaded. |
| Marking |
All Alloy 254 SMO Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| Material Test Certificates (MTC) |
Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2 |
| We can also cut, thread, and groove 254 SMO Pipes to meet your specifications. |
254 SMO Pipe Composition
| SMO 254 |
Ni |
C |
Mo |
Mn |
Si |
Fe |
Cu |
S |
P |
Cr |
| 17.5 – 18.5 |
0.02 max |
6 – 6.5 |
1 max |
0.8 max |
– |
0.5 – 1 |
0.01 max |
0.03 max |
19.5 – 20.5 |
SMO 254 Pipe Mechanical Properties
| Density |
Melting Point |
Yield Strength (0.2%Offset) |
Tensile Strength |
Elongation |
| 8.0 g/cm3 |
1320-1390 ℃ |
300 |
650 |
35 % |
Equivalent Grades for 254 SMO Pipe
| STANDARD |
UNS |
WERKSTOFF NR. |
AFNOR |
EN |
JIS |
SIS |
GOST |
| SMO 254 |
S31254 |
1.4547 |
Z1 CNDU 20.18.06Az |
X1CrNiMoCuN20-18-7 |
– |
2378 |
– |
254 SMO Pipe Pressure Rating
O.D.
(in.)
|
Wall Thickness of Pipe (inches) |
| .028 |
.035 |
.049 |
.065 |
.083 |
.095 |
.109 |
.120 |
| Working Pressure (psig) |
| 1/8 |
7900 |
10100 |
|
|
|
|
|
|
| 1/4 |
3700 |
4800 |
7000 |
9500 |
|
|
|
|
| 5/16 |
|
3700 |
5400 |
7300 |
|
|
|
|
| 3/8 |
|
3100 |
4400 |
6100 |
|
|
|
|
| 1/2 |
|
2300 |
3200 |
4400 |
|
|
|
|
| 3/4 |
|
|
2200 |
3000 |
4000 |
4600 |
|
|
| 1 |
|
|
|
2200 |
2900 |
3400 |
3900 |
4300 |
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