The marine sector frequently prefers austenitic stainless steel alloys, in part because the alloy is exceptionally ductile. Because of this, it is quite simple for smo 254 pipe producers to construct different-shaped pipes, such as rectangle and square shapes. The SCH40 254 SMO Square Pipe is a very premium austenitic stainless steel that was created for usage in the marine industry. The behaviour of seawater with metals was taken into consideration when creating the alloy.
As a result, the 254 SMO Stainless Steel Pipe that was produced offers a variety of appealing qualities. For example, the alloy exhibits better impact toughness resistance to stress-induced corrosion cracking caused by chloride ions. Additionally, Alloy 254 Rectangle Pipe's chemical composition makes it resistant to other marine corrosion issues like pitting and crevice corrosion. The 254 SMO Seamless Pipe is nearly twice as strong as the other austenitic stainless steel 300 series in terms of the alloy's strength. The use of ASTM A312 UNS S31254 has been cited as a cost-effective replacement for alloys that contain significant levels of either nickel or titanium in certain applications.
The 254 smo pipe providers advise industries who are a part of the marine industry to adopt this grade as structural components because the alloy is highly weldable. The alloy for 1.4547 Hollow Pipe has very strong impact strength due to its austenitic microstructure. This Sandvik 254 smo pipe characteristic is present in both environments, i.e., at room temperature as well as at cryogenic temperatures.
| Size | ½” to 6” NB Sch 10s, 40s, & 80s, 160s |
| Wall Thickness | 0.1 - 60 mm |
| SS Seamless Pipe Length |
|
| Seamless SS Pipe Surface Finish | Cold Finish, Bright, Polished, Annealing, Pickling, or as per client requirements |
| Standard | JIS, AISI, ASME, ASTM, AMS, GB, DIN, EN, GOST |
| Manufacturing types | Seamless, Welded, ERW, EFW |
| Manufacturing Shapes | Round, Square, Rectangle, Box Section |
| Manufacturing Technology | Hot / Cold Formed |
| Other Grades | SS 446 |
| Inspection, Test Reports | EN 10204 3.1, Mill Test Certificates, PMI Test Reports, Chemical Reports, Mechanical Reports, NABL Approved Lab Reports, Visual Inspection Reports, Destructive and Non Destructive Test Reports, Third Party Inspection |
| Technique | Cold Rolled Hot Rolled |
OD mm |
Pipe WT mm |
in. |
Sch |
Kg/m |
|---|---|---|---|---|
13.72 |
1.65 |
1/4 |
10S |
0.50 |
13.72 |
2.24 |
1/4 |
40S |
0.64 |
13.72 |
3.02 |
1/4 |
80S |
0.81 |
17.15 |
1.65 |
3/8 |
10S |
0.64 |
17.15 |
2.31 |
3/8 |
40S |
0.86 |
17.15 |
3.20 |
3/8 |
80S |
1.12 |
21.34 |
2.11 |
1/2 |
10S |
1.02 |
21.34 |
2.77 |
1/2 |
40S |
1.29 |
21.34 |
3.73 |
1/2 |
80S |
1.65 |
26.67 |
2.11 |
3/4 |
10S |
1.30 |
26.67 |
2.87 |
3/4 |
40S |
1.71 |
26.67 |
3.91 |
3/4 |
80S |
2.23 |
33.40 |
2.77 |
1 |
10S |
2.13 |
33.40 |
3.38 |
1 |
40S |
2.54 |
33.40 |
4.55 |
1 |
80S |
3.29 |
33.40 |
6.352) |
1 |
160 |
4.30 |
42.16 |
2.77 |
1¼ |
10S |
2.73 |
42.16 |
3.56 |
1¼ |
40S |
3.44 |
42.16 |
4.85 |
1¼ |
80S |
4.53 |
42.16 |
6.352) |
1¼ |
160 |
5.69 |
48.26 |
2.77 |
1½ |
10S |
3.16 |
48.26 |
3.68 |
1½ |
40S |
4.11 |
48.26 |
5.08 |
1½ |
80S |
5.49 |
60.33 |
2.77 |
2 |
10S |
3.99 |
60.33 |
3.91 |
2 |
40S |
5.52 |
60.33 |
5.54 |
2 |
80S |
7.60 |
60.33 |
8.742) |
2 |
160 |
11.29 |
73.03 |
3.05 |
2½ |
10S |
5.35 |
73.03 |
5.16 |
2½ |
40S |
8.77 |
73.03 |
7.01 |
2½ |
80S |
11.59 |
88.90 |
3.05 |
3 |
10S |
6.56 |
88.90 |
5.49 |
3 |
40S |
11.47 |
88.90 |
7.62 |
3 |
80S |
15.51 |
88.90 |
11.132) |
3 |
160 |
21.67 |
101.60 |
3.05 |
3½ |
10S |
7.53 |
101.60 |
5.74 |
3½ |
40S |
13.78 |
101.60 |
8.08 |
3½ |
80S |
18.92 |
114.30 |
3.05 |
4 |
10S |
8.50 |
114.30 |
6.02 |
4 |
40S |
16.32 |
114.30 |
8.56 |
4 |
80S |
22.67 |
114.30 |
13.492) |
4 |
160 |
34.05 |
141.30 |
6.55 |
5 |
40S |
22.10 |
141.30 |
9.53 |
5 |
80S |
31.44 |
141.30 |
15.882) |
5 |
160 |
49.87 |
168.28 |
3.4 |
6 |
10S |
14.04 |
168.28 |
7.11 |
6 |
40S |
28.69 |
168.28 |
10.97 |
6 |
80S |
43.21 |
168.28 |
14.27 |
6 |
120 |
54.75 |
168.28 |
18.262) |
6 |
160 |
68.59 |
219.08 |
8.18 |
8 |
40S |
43.20 |
219.08 |
12.7 |
8 |
80S |
65.63 |
219.08 |
18.23 |
8 |
120 |
91.30 |
219.08 |
23.012) |
8 |
160 |
112.97 |
| 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 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
|---|---|---|---|---|
| 8.0 g/cm3 | 1320-1390 ℃ | 300 | 650 | 35 % |
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | SIS | GOST |
|---|---|---|---|---|---|---|---|
| SMO 254 | S31254 | 1.4547 | Z1 CNDU 20.18.06Az | X1CrNiMoCuN20-18-7 | – | 2378 | – |
1/8" IPS(.405"O. D.) |
3 1/2" IPS( 4.000"O. D.) |
|---|---|
SCH 40, 80 |
SCH 10, 40, 80, 160, XXH |
1/4" IPS(.540"O. D.) |
4" IPS(4.500"O. D.) |
SCH 10, 40, 80 |
SCH 10, 40, 80, 160, XXH |
3/8" IPS(.675"O. D.) |
5" IPS( 5.563"O. D.) |
SCH 10, 40, 80 |
SCH 10, 40, 80, 160, XXH |
1/2" IPS(.840"O. D.) |
6" IPS(6.625"O. D.) |
SCH 5, 10, 40, 80, 160, XXH |
SCH 5, 10, 40, 80, 120, 160, XXH |
3/4" IPS(1.050"O. D.) |
8 ” IPS(8.625"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH 5, 10, 40, 80, 120, 160, XXH |
1" IPS:(1.315′O. D.) |
10" IPS(10.750"O. D.) |
SCH 5, 10, 40, 80, 160, XXH |
SCH 10, 20, 40, 80 (.500), TRUE 80(.500) |
1-1/4" IPS(1.660"O. D.) |
12" IPS(12.750"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500) |
1-1/2" IPS(1.900"O. D.) |
14" IPS(14.000"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH10 (.188), SCH40 (.375) |
2" IPS(2.375"O. D.) |
16" IPS(16.000"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH10(.188), SCH40(.375) |
2 1/2" IPS(2.875"O. D.) |
18" IPS (18.000"O. D.) |
SCH 10, 40, 80, 160, XXH |
SCH-40 (.375) |
3" IPS( 3.500"O. D.) |
|
SCH 5, 10, 40, 80, 160, XXH |
